СПОСОБ ПОЛУЧЕНИЯ ФРИКЦИОННЫХ ПОЛИМЕРНЫХ МАТЕРИАЛОВ

Изобретение относится к способу получения фрикционных полимерных материалов и может быть использовано при изготовлении тормозных колодок железнодорожных вагонов и локомотивов, для автотранспорта, подъемных кранов, дисков сцепления и других изделий. Способ осуществляют обработкой бутадиеновых или бутадиен-нитрильных каучуков на пластификационном оборудовании и смешением каучука с вулканизирующими добавками, с волокнистым и порошковым наполнителем. При этом одновременно с вулканизирующими добавками вводят ароматический полиамин. Ароматический полиамин представляет собой анилино-формальдегидный конденсат, состоящий из 75% изомеров диаминодифенилметана и 3-4 бензольноядерных первичных аминов, связанных метиленовыми мостиками. Волокнистый наполнитель предварительно пропитывается в течение 15 мин водным раствором эпоксидной смолы, представляющим собой продукт взаимодействия смеси диановой и алифатической эпоксидных смол с гликолями или их производными, в соотношении А:Б от 95:5 до 60:40, а затем ...

ВОДНАЯ РЕЗОРЦИН-ФОРМАЛЬДЕГИДНАЯ ДИСПЕРСИЯ ЛАТЕКСА, ЕЕ ПРИМЕНЕНИЕ, СПОСОБ ЕЕ ПОЛУЧЕНИЯ, ВОЛОКНА С УЛУЧШЕННОЙ АДГЕЗИЕЙ, СПОСОБ ИХ ПОЛУЧЕНИЯ И ИХ ПРИМЕНЕНИЕ

Изобретение касается области обработки армирующих волокон, в частности водной резорцин-формальдегидной дисперсии латекса, ее применения, способа ее получения, волокон с улучшенной адгезией, способа их получения и их применения. Водная резорцин-формальдегидная дисперсия латекса содержит по меньшей мере один карбодиимид на основе соединений формулы (I):. Водная резорцин-формальдегидная дисперсия латекса обеспечивает превосходную адгезию синтетических волокон (корда) к резине. У данной дисперсии также есть такое преимущество, что при обработке в дальнейшем процессе не выделяются токсичные мономерные изоцианаты и она может быть получена простым способом производства. 6 н. и 5 з.п. ф-лы, 3 табл.

СПОСОБ ИЗГОТОВЛЕНИЯ УПРОЧНЯЮЩЕГО ЭЛЕМЕНТА НА ОСНОВЕ УГЛЕРОДНОГО ВОЛОКНА ДЛЯ ПНЕВМАТИЧЕСКОЙ ШИНЫ

Изобретение относится к области изготовления упрочняющих элементов, вводимых в изделия на основе каучука - приводных ремней, шлангов, автомобильных шин. Способ включает погружение комплексных углеродных нитей в пропитывающую ванну, содержащую раствор резорцин-формальдегидной смолы и каучукового латекса, сушку и скручивание нитей. Нити предварительно рассредотачивают так, чтобы каждая нить имела развитую увеличенную поверхность. Изобретение обеспечивает возможность более полно и равномерно пропитывать упрочняющие элементы, что оказывает влияние на прочностные показатели изделий. 3 н. и 17 з.п. ф-лы, 3 ил.

КОМПОЗИТНЫЙ ПРОДУКТ И ПРОЦЕСС ДЛЯ ЕГО ПРОИЗВОДСТВА

Изобретение относится к композитному продукту и к способу его получения. Композитный продукт содержит термически модифицированный компонент из цельной древесины, по меньшей мере одна сторона которого покрыта слоем композиционного материала, содержащего термически модифицированный целлюлозный материал и полимер. Способ включает обеспечение термически модифицированного компонента из цельной древесины, обеспечение композитного материала, содержащего термически модифицированный целлюлозный материал и полимер, подачу композитного материала к экструдеру, пропускание модифицированного компонента из цельной древесины через экструдер и нанесение слоя композитного материала для формирования слоя покрытия по меньшей мере на одной стороне компонента из цельной древесины во время его пропускания через экструдер. Изобретение обеспечивает композитный продукт из цельной древесины, покрытый волоконно-полимерным слоем, обладающим улучшенными свойствами, такими как снижение склонности к ползучести и улучшение ...

ПОЛИМЕРНЫЙ КОМПОЗИЦИОННЫЙ МАТЕРИАЛ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к полимерным композиционным материалам, в частности к углепластикам на основе полисульфона, которые применяются в авиа-, вертолето- и автомобилестроении. Задача настоящего изобретения заключается в получении композиционного материала на основе полисульфона, армированного углеродными волокнистыми наполнителями с улучшенной прочностью на сжатие, и разработке способа его получения. Изобретение позволяет повысить прочность на сжатие полисульфонового углепластика на 40-50% за счет введения термопластичного аппрета - полигидроксиэфира, который повышает смачиваемость наполнителя и увеличивает взаимодействие между наполнителем и полисульфоновой матрицей. 2 н.п. ф-лы, 1 табл.

МАСЛОТЕПЛОСТОЙКИЙ РЕЗИНОКОРДНЫЙ КОМПОЗИТ

Изобретение относится к резинокордному композиту, предназначенному для использования в резинотехнической промышленности для изготовления многослойных резинотканевых изделий, в частности резинокордных изделий, эксплуатирующихся в условиях воздействия топлив и масел при повышенных температурах в течение длительного времени. Резинокордный композит включает покровный резиновый слой из резиновой смеси на основе высоконасыщенного гидрированного бутадиен-нитрильного каучука с содержанием акрилонитрила - 49-50% и слои синтетического корда, обработанного пропиточным составом на основе хлоропренового или бутадиен-нитрильного карбоксилсодержащего латексов. Корд обрезинен резиновой смесью на основе бутадиен-нитрильного каучука с содержанием акрилонитрила 18% или 28% при соотношении компонентов, мас.ч. бутадиен-нитрильный каучук - 100, сера - 0,5-1,5, сульфенамид Ц - 1-3, стеариновая кислота - 0,5-2,0, белила цинковые - 5-8, смола Пикар - 3-5, модификатор РУ-Д - 1,5-6,0, белая сажа - 5-10, технический ...

СПОСОБ ДОСТИЖЕНИЯ ПРЯМОЙ АДГЕЗИИ МЕЖДУ ТЕКСТИЛЬНЫМИ АРМИРУЮЩИМИ МАТЕРИАЛАМИ И КАУЧУКОМ

Изобретение относится к способу улучшения прямой адгезии между активированным клеящим веществом, текстильным армирующим материалом и активированным каучуком, составам покрытия армирующих текстильных материалов и изделиям в виде нити, корда или ткани. Материал активируют клеящим веществом на галогидроксильной или эпоксидной основе. Наносят состав покрытия, фиксируют его на материале, заделывают в активированный каучук, отверждают при достаточных для отверждения температуре и времени. Состав для покрытия содержит, по крайней мере, одно гидроксильное ароматическое соединение с, по крайней мере, двумя гидроксильными группами, или соединение фенолальдегидной смолы, по крайней мере, один полидиен. Полученный материал обладает повышенной адгезией с резиной, и получаемое армированное резинотехническое изделие обладает улучшенными динамическими усталостными свойствами. 4 н. и 54 з.п. ф-лы, 22 табл.

СПОСОБ ПОЛУЧЕНИЯ АРМИРОВАННЫХ ПОЛИМЕРНЫХ МАТЕРИАЛОВ

Описывается способ получения армированных полимерных материалов на основе эпоксидного связующего, содержащего эпоксидную диановую смолу, отверждающую систему, наполнитель, а именно вискозную нить, или капроновую нить, нитрилоакрилонитрильную нить, включающий пропитку наполнителя смолой, термообработку, пропитку отверждающей системой. Используют капроновую нить, обработанную магнитным полем перед пропиткой ее отверждающей системой, в отверждающую систему вводят защитный полимер: бутадиенстирольный латекс или клей КМЦ, при следующем массовом соотношении компонентов в отверждающей системе: вода, отвердитель, защитный полимер 1,7-2,3:0,5-1,5:0:7-1,3; термообработку проводят в интервале 60-80°С. Технический результат - повышение разрушающего напряжения при статическом изгибе и повышение удельной вязкости полимерных композиционных материалов при одновременном удешевлении материалов. 2 табл., 3 ил.

Композиционные материалы на основе полифениленсульфида, углеродных волокон и способ их получения

Изобретение относится к композиционным материалам на основе полифениленсульфида и углеродных волокон, аппретированных органическим соединением - 1,4-бензолдикарбоновой кислотой, и способу их получения, предназначенным в качестве конструкционных полимерных материалов. Технический результат предлагаемого изобретения заключается в улучшении физико-механических и реологических свойств создаваемых композиционных материалов за счет введения аппрета, повышающего смачиваемость наполнителя и увеличивающего межмолекулярные адгезионные взаимодействия между углеродным волокном и полифениленсульфидной матрицей. 2 н.п. ф-лы, 1 табл., 7 пр.

СПОСОБ ОБРАБОТКИ ВОЛОКНИСТЫХ АРМИРУЮЩИХ НАПОЛНИТЕЛЕЙ КОМПОЗИЦИОННЫХ МАТЕРИАЛОВ

Изобретение относится к способу обработки волокнистых армирующих наполнителей композиционных материалов и может быть использовано при производстве композиционных материалов фрикционного назначения. Обработку поверхности волокнистых армирующих наполнителей осуществляют раствором фенолформальдегидной смолы резольного типа и неионогенного поверхностно-активного вещества в изопропаноле при медленном перемешивании в вакуумном реакторе. Далее осуществляют сушку под вакуумом до полного удаления изопропанола. 1 з.п. ф-лы.

Полифениленсульфидные композиционные материалы с аппретированными углеродными волокнами и способ их получения

Изобретение относится к полифениленсульфидным композиционным материалам и способу их получения, предназначенным в качестве конструкционных полимерных материалов, включающих в себя полифениленсульфид и углеродные волокна, аппретированные органическим аппретом - 4,4'-бис-([(4-фенил)сульфонил]фенил)сульфидом. Технический результат предлагаемого изобретения заключается в улучшении физико-механических и реологических свойств создаваемых композиционных материалов за счет введения аппрета, повышающего смачиваемость наполнителя и увеличивающего межмолекулярные адгезионные взаимодействия между углеродным волокном и полифениленсульфидной матрицей. 2 н.п. ф-лы, 1 табл., 7 пр.

Способ получения аппретированных углеродных волокон и полиэфиримидный композит

Группа изобретений может быть использована в производстве изделий с помощью аддитивных технологий. Способ получения аппретированных углеродных волокон включает нанесение аппретирующего состава из раствора с последующей сушкой. Аппретирующий состав содержит 1-метил-2,5-диаминобензол и полиэфирэфиркетон на основе 4,4'-диоксидифенилпропана и 4,4'-дифторбензофенона. Предложен также полиэфиримидный углеволокнистый композит. Группа изобретений позволяет увеличить упругость и прочность при изгибе полиэфиримидного углеволокнистого композита. 2 н.п. ф-лы, 1 табл., 6 пр.

Аппретированное углеродное волокно и полиэфирэфиркетонный композиционный материал на его основе

Настоящее изобретение относится к области аппретированных углеродных волокон и полиэфирэфиркетонных композиционных материалов на их основе. Описано аппретированное углеродное волокно состава: углеволокно 99,4÷96,4 масс.%, 4,4'-диаминодифенилкетон (ДАДФК) 0,6÷3,6 масс.%, причем в качестве аппрета используется 4,4'-диаминодифенилкетон, нанесенный на углеволокно из растворов с массовыми концентрациями 0,15÷0,9 масс.% в изопропаноле, отгонка растворителя по режиму: 20 °С – 7 мин, 45 °С - 5 мин, 55 °С - 6 мин, 65 °С - 7 мин, 75 °С - 10 мин, 83 °С - 10 мин. Также описан полиэфирэфиркетонный композиционный материал, предназначенный в качестве конструкционного полимерного материала, используемого при производстве специальных изделий в аддитивных технологиях, содержащий полимерную матрицу на основе полиэфирэфиркетона и аппретированного углеродного волокна, причем используется аппретированное углеродное волокно, полученное указанным выше способом, количественное соотношение компонентов в полиэфирэфиркетонном ...

СПОСОБ ИЗГОТОВЛЕНИЯ КОМПОЗИЦИОННЫХ ОРГАНОПЛАСТОВ

Использование: в авиационной, химической промышленности и других областях техники, где предъявляются высокие требования к трансверсальной прочности композиционных материалов. Сущность изобретения:ароматическое полиамидное волокно марки СВМ предварительно обрабатывают полярным апротонным растворителем, например диметилформамидом или диметилсульфоксидом, или смесью полярного апротонного и неполярного растворителя, до усадки волокна на 0,5 5% исходной длины. После удаления оставшегося в набухшем волокне растворителя волокно пропитывают эпоксидным связующим и формуют органопласт известными методами. Прочность на раздир полученных органопластов в зависимости от типа использованного полярного апротонного растворителя, степени усадки волокна и вида эпоксидного связующего составляет 960 2700 Н/м. 2 з.п. ф-лы.

КОМПОЗИЦИЯ ФТАЛОНИТРИЛЬНОГО СВЯЗУЮЩЕГО ДЛЯ ПОЛИМЕРНЫХ КОМПОЗИЦИОННЫХ МАТЕРИАЛОВ, СПОСОБ ЕЕ ПОЛУЧЕНИЯ, СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРНОГО КОМПОЗИЦИОННОГО МАТЕРИАЛА И МАТЕРИАЛ, ПОЛУЧЕННЫЙ ЭТИМ СПОСОБОМ

Изобретение относится к композиции связующего, предназначенной для изготовления полимерного композиционного материала (ПКМ) или препрегов для ПКМ, к вариантам способа получения композиции связующего, к способу отверждения композиции связующего, к полимерному композиционному материалу и способу его получения. Композиция связующего включает: (1) полимеризуемую смесь, содержащую один или несколько бис-фталонитрильных мономеров общей формулы:где X, Y, Z каждый независимо выбирают из группы, состоящей из H, F, Cl, Br и CH, в количестве 20-94 мас.% от массы полимеризуемой смеси; один или несколько реактивных пластификаторов-антипиренов общей формулы:,где группаможет находиться в мета- или параположении относительно атома кислорода, связанного с бензольным кольцом, а R выбирают из арила, оксиарила, алкила или оксиалкила, или пластификаторов-антипиренов общей формулы:,в которой R выбирают из арила, оксиарила, алкила или оксиалкила, взятых в количестве 5-80 мас.% от общей массы полимеризуемой смеси ...

ФРИКЦИОННОЕ ИЗДЕЛИЕ

Изобретение относится к фрикционным изделиям, предназначенным для эксплуатации в тормозных узлах автомототехники, железнодорожного транспорта, машин и оборудования, муфтах сцеплений. Фрикционное изделие включает полимерное связующее, дисперсные наполнители и высокопрочные волокнистые армирующие наполнители (или единственный наполнитель), предварительно подвергнутые местному деструктивному воздействию с образованием деформаций и дефектов структуры волокна в местах деструктивного воздействия. Изделие также содержит твердые хрупкие волокнистые наполнители (или единственный наполнитель), длина волокон которых превышает 0,05 мм. Технический результат - улучшение эксплуатационных характеристик изделия путем снижения возможности образования налипаний за счет ускоренного их удаления из зоны фрикционного контакта.

ФОРМУЕМАЯ РЕЗИНОВОЛОКНИСТАЯ КОМПОЗИЦИЯ

Формируемая резиноволокнистая композиция, включающая резинокордные отходы регенератного производства, серу и связующее, отличающаяся тем, что композиция в качестве связующего содержит пресс-порошок фенопласта при следующем соотношении компонентов, мас. %: Резинокордные отходы - 85 - 90 Сера - 3 - 5 Пресс-порошок фенопласта - 5 - 10 ...

СПОСОБ АППРЕТИРОВАНИЯ УГЛЕРОДНОГО ВОЛОКНА ДЛЯ ПРОИЗВОДСТВА ПОЛИСУЛЬФОНОВОГО УГЛЕПЛАСТИКА

Изобретение относится к полимерныи композиционным материалам, в частности к аппретированию углеродных наполнителей с целью повышения прочности и перерабатываемости углеродных волокон. В способе аппретирования углеродного волокна для производства полисульфонового углепластика, включающего смешение с растворителем блоксополимера, пропитку наполнителя с последующей сушкой, смешение осуществляют в воде одновременным воздействием ультразвукового излучения. Предлагаемый способ позволяет получить экологически чистый аппрет, улучшить условия труда и исключить пожароопасность производства.

Способ упрочнения композиционных материалов на основе углеродного волокна

Изобретение относится к способу упрочнения углеродного волокна, модифицированного активными частицами металла, предназначенного для получения композиционных материалов, которые в свою очередь востребованы во многих сферах потребления и отраслях производства. Технический результат заключается в повышении прочности связывания углеродного волокна и полимерной матрицы в композиционных материалах. Технический результат достигается способом, включающим в себя модифицирование активными частицами металла, при этом углеродные волокна покрывают слоем гидроксида алюминия толщиной от 1 до 2 нм, затем обезвоживают гидроксид, затем пропитывают волокно раствором соли металла, затем восстанавливают полученные частицы соли до металлического состояния. 4 з.п. ф-лы, 5 ил., 8 пр.

АНТИФРИКЦИОННЫЙ КОМПОЗИТНЫЙ МАТЕРИАЛ ДЛЯ ПОДШИПНИКОВ СКОЛЬЖЕНИЯ СУДОВЫХ ВАЛОПРОВОДОВ И ГРЕБНЫХ ВАЛОВ

Изобретение относится к антифрикционным материалам на основе термопластичных полимеров и может быть использовано в судостроительной, машиностроительной и других областях промышленности при изготовлении высоконапряженных узлов трения различного назначения методом спекания материала. Антифрикционный композитный материал состоит из матрицы в виде кристаллического сополимера этилена с тетрафторэтиленом и армирующего наполнителя. В виде кристаллического сополимера этилена с тетрафторэтиленом применяют фторопласт-40П с насыпной плотностью 0,6 г/см, а в качестве армирующего наполнителя - измельченную углеродную ткань марки Урал Т-22 (УТА) с термохимической обработкой волокон и со следующими характеристиками: разрывная нагрузка - 1428Н (по основе), 1071Н (по утку). В композицию добавлен модификатор в виде порошка дисульфида молибдена (MoS) при следующем соотношении компонентов, мас.%: фторопласт-40П - 54-55, измельченная углеродная ткань Урал Т-22 - 35-36, дисульфид молибдена - остальное. Предложение ...

АНТИФРИКЦИОННЫЙ КОМПОЗИТНЫЙ МАТЕРИАЛ ДЛЯ ФОРМООБРАЗОВАНИЯ ВЫСОКОНАПРЯЖЕННЫХ УЗЛОВ ТРЕНИЯ ПОДШИПНИКОВ СКОЛЬЖЕНИЯ СУДОВЫХ ВАЛОПРОВОДОВ И ГРЕБНЫХ ВАЛОВ

Антифрикционный композитный материал для формообразования высоконапряженных узлов трения подшипников скольжения судовых валопроводов и гребных валов, состоящий из матрицы, для которой используют кристаллический сополимер, и армирующего наполнителя в виде измельченного волокна углеродной ткани, отличающийся тем, что в качестве кристаллического сополимера применяют кристаллический сополимер этилена с тетрафторэтиленом - фторопласт - 40П (Ф-40П), а в качестве армирующего наполнителя - измельченную углеродную ткань марки Урал Т-22 и дисульфид молибдена (Мо S), при этом композиция материала содержит следующее соотношение компонентов, мас.%:фторопласт 40П (Ф-40П) - 60%;измельченная углеродная ткань Урал Т-22-40%;дисульфид молибдена (Мо S) 10% (от общей массы полученной пресс-композиции) ...

ВОДНЫЙ АППЕРТИРУЮЩИЙ СОСТАВ ДЛЯ ВОЛОКОН, ИСПОЛЬЗУЕМЫХ ДЛЯ АРМИРОВАНИЯ ВЫСОКОТЕМПЕРАТУРНЫХ КОМПОЗИЦИОННЫХ МАТЕРИАЛОВ

Стабильный водный аппретирующий состав содержит полиамидокислоту, нейтрализованную аммиаком и/или аминами и полученную на основе определенных ароматических диангидридов и определенных ароматических диаминов, и апротонные растворители.

СПОСОБ ИЗГОТОВЛЕНИЯ КОМПОЗИЦИОННОГО МАТЕРИАЛА НА ОСНОВЕ ТЕРМОПЛАСТИЧНЫХ МАТРИЦ

... 1. Способ изготовления композиционного материала на основе термопластичных матриц, заключающийся в подготовке компонентов, дозировании и смешивании, отличающийся тем, что углеграфитовое волокно предварительно обрабатывают растровом фторсодержащего олигомера общей формулы Rf-R1, где Rf - фторсодержащий радикал, R1 - концевая группа (-COOH, -OH, -NH2, -CF2) молекулярной массой 2000-5000 ед., сушат до удаления растворителя и термообрабатывают при 373±5К. 2. Способ по п.1, отличающийся тем, что после обработки волокна раствором фторсодержащего олигомера, его сушат и обрабатывают в поле коронного разряда при напряжении 10-40 кВ в течение 1-5 мин.

Способ получения аппретированных углеродных волокон и полиэфирэфиркетонные композиции

Изобретение относится к способу получения аппретированных углеродных, и может быть использовано в качестве конструкционных полимерных материалов для производства изделий специального назначения в аддитивных технологиях. Способ получения аппретированных углеродных волокон, основан на аппретировании углеродного волокна путем нанесения аппретирующего компонента из раствора с последующей сушкой, в сушильном шкафу под вакуумом при 50-51°С, при этом аппретирующий состав, представляющий собой смесь эпоксиолигоэфира на основе эпихлоргидрина и 4,4'-диоксифталофенона со степенью полимеризации n = 9-11 и олигомерного эфирэфиркетона на основе 4,4'-диоксифталофенона и 4,4'-дифтордифенилкетона со степенью полимеризации n = 9-11, наносят из раствора с концентрацией 0,25 мас.% в хлороформе, и проводят ступенчатый подъем температуры при одновременном воздействии ультразвука с рабочей частотой 46 кГц с одновременной отгонкой растворителя по режиму: 20°С - 3 мин.; 32°С - 3 мин.; 40°С - 3 мин.; 50°С - 3 мин ...

Способ получения эпоксиуглепластика

Изобретение относится к способу получения зпоксиуглепластика и может быть использовано в химической промышленности , авиационной и ракетной технике. Изобретение позволяет повысить физико- механические свойства углепластика за счет того, что перед отверждением связующего пропитанное эпоксиноволачным связующим углеродное волокно подвергают гамма-облучению удельной дозой 2,83 -103- 5,60-103Мрэд/мм. 1 табл ...

Состав для обработки минерального волокна

Использование: обработка поверхности минерального волокна, в частности базальтового волокна при производстве эпоксидных базальтопластиков. Сущность изобретения: состав для обработки базальтового волокна на водной основе, включающий органическую составляющую, содержит в качестве органической составляющей олигоуретансемикарбазид . формулы С1С5Н5МСН2СОМНМНаЖНСбНз(СНз)МНСО - ORCONHCeH3(CH3)NHCONHNHCOCH2NQ H5CI, где R -- СН2СН(СНз), при следующем со: отношении компонентов, мас.%: олигоуретансемикарбазид 0,005-0,32; вода остальное. 2 табл. (/) С м со ...

Способ изготовления стеклопластика

COMPOSITION FOR TREATING MINERAL FIBER

Способ изготовления прокладочного материала

СПОСОБ ИЗГОТОВЛЕНИЯ ПРОКЛАДОЧНОГО МАТЕРИАЛА из полиамиднок . или полиэфирной ткани с линейной плотностью 70-82% двукратной пропиткой ее латекснорезорцинформальдегидным составом с последующим высушиванием при 125-135°С в течение 4-5 мин и термообработкой при 180-210°С в течение 0,3-1 мин, о тлич ающийся тем, что, с целью уменьшения адгезии к полуфабрикатам из резиновой смеси, увеличения жесткости срока службы материала , последний после термообработки дополнительно прогревают при 100140°С в течение 60-180 мин.

Способ получения резиновой смеси

Изобретение относится к способу получения резиновой смеси, армированной измельченным волокном и может быть использовано в резиновой промышленности. Изобретение позволяет сократить длительность изготовления резиновой смеси и повысить прочностные свойства вулка- низатов из нее за счет одновременного измельчения и модификации полимерного текстильного материала на вальцах в присутствии кислородсодержащего структурированного карбо- или гетероцепного олигомера с молекулярной массой Me - 15000-40000, при 20-100°С при массовом соотношении, текстильного материала и структурированного олигомера 5-98:95-2, соответственно. 6 табл.

Способ получения углепластика

Изобретение относится к способам армирования высокомолекулярных соединений волокнистым материалом и может быть использовано при производстве углепластика из эпоксидного связующего с применением трехфтористого бора в качестве катализатора . Цель изобретения - повышение прочности углепластика на растяжение и изгиб . Для этого углеродные волокна подвергают обработке последовательно водными растворами гидразина, формалина, бром- гидрита натрия, сероуглерода и едкого кали, йода и йодистого кали, а также тиосульфата натрия. После такой модификации волокон их пропитывают эпоксидным связующим и отверждают при внешнем температурном нагреве, пропуская через волокна постоянный ток плотностью 0,62-0,67 А/мм2. Полученные образцы имеют прочность на растяжение 187 кг/мм , прочность на изгиб 198 кг/мм2, температуру стеклования 70°С и температуру плавления 110°С. 1 з.п. ф-лы 2 табл. СП С ...

Способ получения резиноподобной нити

Способ получения полимерного композиционного материала

СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРНОГО КОМПОЗИЦИОННОГО МАТЕРИАЛА на основе ткани из полиакрилнитрильного волокна, эпоксиполиэфирного связующего и неорганической добавки - солей металлов, включающий пропитку ткани связующим и последующее формование полученного препрега при нагревании под давлением , отличающийся тем, что, с целью .снижения выделения токсичных газов при низкотемпературной деструкции материале, в качестве неорганической добавки применяют азотнокислую медь и сернокислый марганец , которые вводят в материал предварительной пропиткой ткани смесью водных растворов этих солей в соотношении 1:1 с концентрацией 0,8-4,8 мае./о каждой соли до содержания каждой соли 1-6% от массы связующего с последующей термообработкой пропитанной ткани при 433-473 К (О в течение 3-4 ч.

Способ изготовления формованных изделий

Композиционный материал

Способ получения модифицированных полиэфирных кордных волокон

Способ получения армированных углеродным волокном материалов

Verfahren zur Herstellung eines flexiblen thermoplastischen zusammengesetzten Filaments, enthaltend kontinuierliche Fasern

BESCHICHTUNGSMASSEN

Faserverbundwerkstoffe

Ein Faserverbundwerkstoff hat ein Fasermaterial (5) mit Filamenten (6). Weiterhin hat der Faserverbundwerkstoff eine Kunststoffmatrix (8), in die das Fasermaterial (5) eingebettet ist, und einen Haftvermittler (9), mit dem die Filamente (6) des Fasermaterials (5) beschichtet sind. Das Fasermaterial (5) ist aus mindestens einem der folgenden Materialen ausgewählt: Glas, Kohlenstoff, Armid, Basalt, Polyester, Naturfaser. Die Kunststoffmatrix (8) ist als thermoplastischer Kunststoff ausgeführt. Der Haftvermittler (9) ist auf Basis mindestens eines der folgenden Materialen ausgewählt: Silan, Polypropylen (PP), Titanat, Aluminium, Chrom, Zirkon und Bor. Es resultiert eine Materialkombination von Fasermaterial/Kunststoffmatrix/Haftvermittler, die sich in besonderer Weise für die Herstellung eines Faserverbundwerkstoffes eignet, insbesondere für die Herstellung von Bändern aus dem Faserverbundwerkstoff.

Verfahren zur Herstellung von Formkörpern aus natürlichen Polymeren

VERFAHREN ZUR HERSTELLUNG ELEKTRISCH LEITFÄHIGER POLYMERVERBUNDE MIT ELEKTROMAGNETISCH ABSCHIRMENDER FUNKTION

RUBBER-STEEL COMPOSITE ARTICLE, E.G. A VEHICLE TIRE INCLUDING AT LEAST ONE STEEL REINFORCING ELEMENT

GEWEBE ZUR HERSTELLUNG VON ELEKTROPHORESEGELEN

A textile comprising a single-layer or multi-layer hydrophilic adhesive coating is used in the manufacture of electrophoresis gels.

Gewebe zur Herstellung von Elektrophoresegelen

Beschichtungsverfahren und härtbare Zusammensetzungen

VERBUNDMATERIAL AUS MIT FASERN VERSTAERKTEN THERMOPLASTISCHEN POLYMEREN.

HAFTUNG VON GUMMI AN ARAMIDKORDELN.

VERFAHREN ZUR HERSTELLUNG EINER ORGANISCHEN FASER AUF BASIS EINES EPOXIDHARZES UND EINES RHEOLOGIESTEUERNDEN MITTELS UND ENTSPRECHENDE TROCKENWAREN

Verfahren zum Beschichten von strangfoermigen Gebilden mit Haftvermittlern fuer Kautschuk

Haftvermittlersubstanz zwischen vulkanisierbarem Polymer und metallischem Festigkeitsträger

Verkleben von Polyester-, Polyamid- und Cellulosematerialien miteinander oder mit anderen Materialien

LANGGESTRECKTE STAHLGEGENSTAND BEHANDELT MIT EINER KORROSIONINHIBIERENDE ZUSAMMENSETZUNG

Aromatic polysulphone resin composition useful for high strength moulding(s) e.g. relay

An aromatic polysulphone resin composition comprising 100 parts weight aromatic polysulphone resin (I) and 5-240 parts weight glass fibres, surface-treated with a urethane resin.

ELASTOMERBESCHICHTETES SCHRAEGES VERSTAERKUNGSGEWEBE SOWIE HERSTELLUNGSVERFAHREN UND -ANLAGE

WAESSRIGE ALKALISCHE DISPERSION AUF DER BASIS VON VINYLPYRIDIN-COPOLYMERISATEN UND DEREN VERWENDUNG ZUM VERKLEBEN EINES POLYAMID-VERSTAERKUNGSELEMENTS MIT EINER KAUTSCHUK- BZW. GUMMIMISCHUNG

Kunstharzzusammensetzung für ein Nonwoven gewebeartiges Design und Verfahren zur Herstellung eines geformten Artikels daraus

Isolierkoerper

Verbesserter faserverstärkter Verbundkunststoff und Verfahren zu dessen Herstellung

Faserverstärkter Verbundkunststoff (100), umfassend eine organische Kunststoffmatrix (40), umfassend ein oder mehrere Polymere; sowie anorganische Verstärkungsfasern (10); wobei zwischen den Verstärkungsfasern (10) und der Kunststoffmatrix (40) ein Haftvermittler (25) vorliegt, der durch ein Haftvermittler-Vernetzungsmittel (35) unter Ausbildung eines haftvermittelnden Netzwerks durch zusätzliche Vernetzung des Haftvermittlers (25) mit Haftvermittler-Vernetzungsmittel (35) vernetzt ist, wobei der Haftvermittler (25) ein Silanhaftvermittler ist, der einen Kopplungsaktivator in Form von N-[5-(Trimethoxysilyl)-2-aza-1-oxopentyl]-caprolactam darstellt; und das Haftvermittler-Vernetzungsmittel (35) ein Silanhaftvermittler-Vernetzungsmittel darstellt, ausgewählt aus der Gruppe, bestehend aus 1,2-Bis(triethoxysilyl)ethan, 1,2-Bis(trichlorsilyl)ethan, 1,2-Bis(trimethoxysilyl)ethan, 1,2-Bis(tri(n-propyloxy)silyl)ethan, 1,2-Bis(diethoxychlorsilyl)ethan, 1,2-Bis(dichlorethoxysilyl)ethan, 1,2-Bis(triisopropylsilyl ...

Verfahren zur Verbesserung der Haftfestigkeit von geformten Gebilden aus Polyestern gegenueber Gummi oder anderen Elastomeren

Fasermatte

Fasermatte, dadurch gekennzeichnet, dass die Matte aus mindestens einer Schicht aus Filamenten geschnittener und geöffneter Rovings besteht.

Aramid-Faserschnur für Treibriemen und Verfahren zur Herstellung derselben

Verfahren zur Verbindung von Elastomeren mit festen Unterlagen,insbesondere mit synthetischem Fasermaterial

Lagerstabile Polyurethan-Prepregs und daraus hergestellte Formkörper aus Polyurethanzusammensetzung mit flüssigen Harzkomponenten

Die Erfindung betrifft lagerstabilen Polyurethan-Prepregs und daraus hergestellte Formkörper aus Polyurethanzusammensetzung mit flüssigen Harzkomponenten, bevorzugt flüssigen Polyolen.

Durable reactor for high temp. hydrogeneration of chloro-silane cpds. - consists of carbon@ fibre composite coated with silicon carbide, pref. with heating element of same material insulated with silicon nitride

Reactor for bringing chlorosilanes and H2 gases into contact at temps. above 600 deg.C has a chamber of SiC-coated C fibre composite material (I). The reaction chamber contains a heating element, also made from (I), pref. with electrical insulation of Si3N4, esp. hot pressed Si3N4. Pref. (I) has a 0.02-0.13 mm thick SiC coating and a matrix of C and C fibres with a density of 1.5-2.0 g/cc, Young's modulus of elasticity of 200-600 GN/m2 and tensile strength of 1500-8000 N/mm2. The C fibre content is 50-70 vol.%. USE/ADVANTAGE - The reactor is useful in the hydrogenation of SiCl4, SiHCl3, SiH2Cl2 and SiH3Cl. (I) has high strength, good elastic properties and great resistance to damage by pressure and thermal stress. The expansion coefft. of the matrix can be matched to that of the SiC coating. The coating protects the matrix from redn., which could destroy the appts. and contaminate the hydrogenated chlorosilanes. In an example, tests were carried out on samples of (A) pressed Si3N4 (`Cl32 ...

Verfahren zur Verklebung von Kunstfasern mit Kautschuk unter Anwendung einer Klebeloesung und Herstellung eines Laminats durch Verbesserung des Klebeverfahrens von Kunstfasern mit Kautschuk

A process for treating synthetic polyester or polyamide fibres or cords to improve their ability to adhere to a rubbery composition

The adhesion of synthetic polyester and polyamide fibres and cords to rubbery compositions is improved by treating them with a composition comprising of polyepoxide and water and then heating them at a temperature sufficient to remove a portion but not all of the polyepoxide but below the softening temperature of the fibres or cords, in the absence of a curing agent for the polyepoxide. The epoxy group may be present in the polyepoxide in an amount greater than 0.2 equivalents per 100 grams of polyepoxide. Suitable polyepoxides are those obtained by the reaction of a halogen-containing epoxide with a polyhydric alcohol or ester or ether thereof, a hydroxy aldelyde, a hydroxy-ketone, a mercapto alcohol, a halogenated polyhydric alcohol or a polyhydric phenol, numerous examples of which are given. The treating composition may contain 0.5-10% by weight of the polyepoxide. The polyepoxide may be removed from the fibres or cords by vaporization, decomposition or burning by heating to a temperature ...

Improvements in or relating to articles comprising rubber bonded to fabric comprising cords of or containing artificial silk and a process for the production thereof

Fabric comprising cords of or containing artificial silk is bonded to rubber by the solids deposit of a rubber dispersion containing a proteinous material and carbon black. The proteinous material may comprise casein, glue or gelatine. The carbon black is preferably derived from a dispersion of whole tyre reclaim, which is mixed with latex; or the carbon black may be separately dispersed with soap or the like and added to the latex, in which case a dispersion of other types of reclaim (e.g. tube reclaim) may also be added. In an example, artificial silk cords are drawn through a bath of the dispersion and wound spirally, touching each other on a duck liner on a drum, and are then dried. Plies are made by coating the cord side of the fabric with rubber stock in a calendar, stripping the duck liner, and coating the other side. Flexing and adhesion tests are described. Specification 178,811, [Class 140], is referred to.

COMPOSITE MATERIALS COMPRISING CARBON FIBRES AND RESIN

... 1385352 Carbon fibre resin compositions COMMISSARIAT A L'ENERGIE ATOMIQUE 15 March 1972 [19 March 1971] 11983/72 Heading C1A [Also in Division C3] A composite material comprising carbon fibres and resin is prepared by (a) treating carbon fibres with a graft or block copolymer to form chemical bonds between the carbon fibres and the copolymer, and (b) incorporating the treated fibres in a resin, the block or graft copolymer comprising a first type of sequence (A) which forms the chemical bonds with the fibres and is incompatible with the resin, and a second type of sequence (B) which is compatible with the resin. In a modification step (a) comprises forming chemical bonds between the carbon fibres and a polymer of sequence A, and grafting polymer of sequence B on to the polymer of sequence A. Sequence A may be bonded by covalent bonds formed by radical grafting or anionic grafting, or by ionic bonds, e.g. hydrogen bonds, dipole-dipole bonds or saline bonds. Sequence B may be grafted on sequence ...

Improvements in methods of bonding rubber to fibrous materials

... 530,011. Adhesives. UNITED STATES RUBBER CO. June 14, 1939, No. 17383. Convention date, July 2, 1938. [Class 70] [Also in Group IV] An adhesive suitable for bonding rubber to fibrous materials comprises a mixture of rubber, carbon black, a potentially reactive phenolic resin and a formaldehyde-yielding substance, in an organic solvent for the rubber. Phenol, cresol, xylenol and an oxidizing agent such as lead chromate or a nitro-aryl, quinone-haloid or quinone-imine compound, (chloranil or benzoquinone-oximes) may be added. A homogenizing agent such as cyclohexanol, amylacetate, hexaline acetate or ethylene glycol mono ethyl ether may also be added.

Improvements in or relating to impregnated fibrous materials

A fibrous material in the form of a sheet is stabilized against dimensional change due to alteration of humidity by impregnating with an aqueous solution or dispersion of a low molecular weight crystalloidal condensation product (derived from formaldehyde and a component adapted ultimately to yield with formaldehyde or thermosetting synthetic resin) so as to incorporate not more than 10 per cent of the condensation product within the fibres, further condensing the material within the fibres, and subsequently forming the fibrous material into a mass with a thermoplastic bonding agent. In a modification, loose fibres are so impregnated and any bonding agent is used. Thermoplastic bonding agents referred to are natural and artificial rubber resins. The untreated material may be either cellulosic or non-cellulosic and in massive form (e.g. wadding or felt), or in sheets or webs (e.g. wood veneer, paper, or textiles). High density paper may be used. The moisture content of the untreated material ...

METHOD OF BENDING

... 1378519 Adhesives; bonding reinforcing materials to rubber DUNLOP Ltd 4 April 1972 [17 April 1971] 9745/71 Headings C3E and C3P [Also in Division D1] Adhesive compositions comprise a latex of a copolymer of an unsaturated aminimide with a co-monomer which results in a rubbery copolymer. The adhesives may also contain a resin precursor. Suitable aminimides are those of formula in which X 1 , X 2 and X 3 are hydrogen or saturated or unsaturated organic groups and X is an unsaturated organic group, particularly a group derived from a mono- or di-carboxylic unsaturated acid. The co-monomer may be a lower alkene, a conjugated diene or an alkyl acrylate, and additional co-monomers may also be present. The resin precursor may comprise resinforming reactants or a partially condensed resin, e.g. an aldehyde resin or a low or medium M.W. polyepoxy resin. In examples, adhesives are formed from butadiene/styrene/aminimide or butadiene / styrene / aminimide latices and either a pre-condensed resorcinol ...

SURFACE TREATING CARBON FIBRES

... 1416109 Surface-treating carbon fibres KUREHA KAGAKU KOGYO KK and TOYO BOSEKI KK 21 Dec 1973 [22 Dec 1972 (2)] 59612/73 Heading C1A A process for the surface treatment of carbon fibres comprises subjecting the carbon fibre to an oxidizing treatment to form oxygen-containing groups in its surface, and then treating with one of ammonia, an organic amine, a lactam or an aminocarboxylic acid at a temperature of from 100 to 500‹ C. (preferably from 100‹ to 400‹ C.). The latter treatment is preferably effected with one of ammonia, aniline, triethylamine, pyridine, quinoline, ethylenediamine, hexamethylene diamine, -aminopropyltriethoxysilane, n - trimethoxysilylpropylethylenediamine, # - caprolactam, butyrolactam, #- caprylactam, heptalactam, aminobutyric acid, aminovaleric acid, aminocaproic acid, aminomethylbenzoic acid, aminobenzoic acid or diaminobenzoic acid in an inert atmosphere. The fibres so treated may be formed into a composite material comprising said fibres as reinforcing material ...

Improving the adhesion of ethylene/ª‡-olefine copolymers to tyre cords

A composition for impregnating tyre cords in order to adhere them to alkylene-a -olefine copolymers comprises an aqueous mixture of (a) A phenol-formaldehyde resin; (b) A homopolymer of vinyl pyridine or a substituted vinyl pyridine; and (c) A copolymer of ethylene with an a -olefine or with an a -olefine and one or more diolefines. The phenol is preferably resorcinol.ALSO:Tyre cords, e.g. of rayon, are treated to increase their adhesion to ethylene-a -olefine copolymers, or ethylene-olefine-diolefine copolymers by impregnating them with an aqueous dispersion containing a phenol-formaldehyde resin, a copolymer of ethylene with an a -olefine or a copolymer of ethylene, an a -olefine and one or more diolefines, and a homo-polymer of vinyl pyridine or of a substituted vinyl pyridine. The phenol is preferably resorcinal and the ethylene copolymer is preferably an ethylene-propylene-dicyclopentadiene copolymer.

Improvements in the bonding of polyethylene terephthalate fibres to rubber

The bonding of polyethylene terephthalate fibres to natural or synthetic rubber, e.g. cispolymers of butadiene and isoprene, polymers of chlorobutadiene and copolymers of these monomers with styrene, acrylonitrile, methyl methacrylate, ethylene, propylene or isobutylene, is improved by treating the fibres with an aqueous adhesive system comprising a butadiene/vinyl pyridine copolymer and a resorcinol-formaldehyde resin solution and with an aqueous suspension of an isocyanate generator prepared by the reaction of a polyisocyanate-polyhydric alcohol reaction product with a phenol. The dispersion of the isocyanate generator may be mixed with the aqueous butadiene/vinyl pyridine latex and resorcinol-formaldehyde resin solution and the fibres impregnated with this dispersion and heated for a short time at temperatures above 140 DEG C. Alternatively the fibres may be impregnated with the p isocyanate generator and with the latex and resorcinol-formaldehyde resin solution separately in either ...

Adhesion of Elastomers to Fibres

... 1,195,868. Chlorsulphonated and brominated EPDM polymers. MONPECATINI EDISON S.p.A. 13 Oct., 1967 [14 Oct., 1966], No. 46920/67. Heading C3P. [Also in Divisions D1-D2] A terpolymer of ethylene, propylene and methyl tetrahydroindene is reacted in solution with bromine or with a mixture of chlorine and sulphur dioxide. The solutions are then turned into latexes and mixed with resorcinol-formaldehyde condensates.

REINFORCING MATERIALS

... 1275258 Reinforced resin compositions DUNLOP HOLDINGS Ltd 4 Aug 1969 [3 Aug 1968] 37149/68 Headings C3Q and C3R [Also in Division D1] A reinforcing material comprises chopped bundles of brittle filaments impregnated with an elastic solid having a Poisson's ratio #0À45 at strain #5%. The filaments have a specific modulus #200 Î 106 inch, and may be of B, SiO 2 , SiC, Si 3 N 4 , carbon, or graphite. The elastic solid may be a cross-linked resorcinol-formaldehyde latex (RFL) adhesive composition, e.g. an aqueous dispersion of RFL and natural rubber, or RFL and resin vinyl pyridine and butadiene rubber; or cis-polyisoprene in n-hexane with dicumyl peroxide as curative; or liquid polyurethane; or plasticized P.V.C. The impregnated bundles may be twisted before or after the liquid is converted into an elastic solid or after drying but before cross-linking. The mean helix angle of the filaments > 20 degrees with regard to yarn axis. The chopped bundles may be formed by impregnating yarn ...

Improvements in and relating to bonding fabrics to natural and synthetic rubber

Agents for bonding regenerated cellulosic, nylon or glass fabrics to natural or synthetic rubber, e.g. poly-2-chloro-1.3-butadiene or poly-1.3-butadiene, are emulsions or dispersions of modified alkyd resins in aqueous solutions of either protein material or partial resinification products of monohydric or polyhydric phenols and aldehydes. The alkyd resins are modified with semi-drying oils, linseed oil, linseed-tung oil mixtures, or thermohardening urea-formaldehyde resins. The latter type may be mixed with a non-drying oil modified alkyd. Suitable proteins are casein, gelatine, glue, blood albumin, egg albumin, or corn or bean proteids. Casein or similar proteins may be dissolved with the aid of ammonia, sodium phenate or sodium trichlorphenate. The preferred partial resinification products are those from resorcinol, phloroglucinol or resorcinol and formaldehyde, acetaldehyde, benzaldehyde or furfural. The solutions of these partial condensation products may include resinification catalysts ...

Improvements in or relating to the production of cord material for use in tires, reinforced rubber products, and the like

A cord material having a denier of at least 500, for use in tyres, reinforced rubber products, and the like, is obtained by applying to a filamentary material a composition comprising a partial ester of a fatty acid containing at least 12 carbon atoms with a hexahydric alcohol or an anhydro derivative thereof, and thereafter twisting at least 1.5 turns per inch to form the cord material. As an alternative, individual strands of filamentary material may be treated with the composition and then twisted at least 1.5 turns per inch in one direction, and a plurality of such strands may thereafter be twisted together in the opposite direction to form a cord. The partial ester may be derived from sorbitol, mannitol, dulcitol, sorbitan, mannitan, sorbide, or mannide, and from lauric, myristic, palmitic, stearic, oleic, or ricinoleic acid. Specified esters are sorbitol tetrastearate, sorbitan monopalmitate, and mannide monooleate. The sizing composition may also contain sulphated or sulphonated ...

Improvements in and relating to the bonding of rubber to viscose rayon yarns

In the production of viscose rayon yarns having an improved adhesion to rubber, a main viscose stream is delivered to a spinning machine comprising a number of jets immersed in an aqueous coagulating bath and supplied with individual viscose streams branching off from the main stream, and there is injected into the main stream, just before it reaches the spinning machine, an aqueous caustic soda solution of an incompletely condensed heat-hardenable resorcinol-formaldehyde resin having a resorcinol/formaldehyde molar ratio of 1:1:3-3.5 and a resorcinol/caustic soda molar ratio of 1:1.0-3.5. The resin content of the solution is preferably 5-15 per cent. by weight and that of the finished yarn 0.5-3 per cent. by weight based on the dry weight of the yarn. When the injector unit and/or the feed pipes associated therewith are made of iron or of a ferrous alloy subject to corrosion in contact with viscose, the resorcinol/caustic soda molar ratio should be 1:1.5-3.5, to prevent gelling of the ...

FIBREREINFORCING RUBBERY POLYMERS

Method of making a laminate

Method of making a laminate wherein an amide or crystalline polyester fabric or mat is impregnated with a resinous epoxy or polyimide resin. Microcracks which form in the laminate as a result of thermal cycling, are reduced by subjecting the fabric or mat, prior to impregnation, to an active oxygen- or nitrogen-containing gas plasma for from 1 to 40 minutes at an RF power to flow rate ratio of from 1 to 4, a gas pressure of from 0.1 to 5 mm, and a frequency of from 100 Hz to 1 GHz. ...

Adhesive for fibrous material

An adhesive for adhering fibrous materials, particularly polyester fibrous material to rubber is disclosed, which comprises polyhydric phenol-polysulfides, resorcin excess resorcin-formaldehyde condensates, and RFL solution composed of resorcin-formaldehyde condensate and rubber latex.

Process for the manufacture of composite structures from rayon textile materials and copolymers of mono-olefines

In the manufacture of rubber articles from saturated amorphous copolymers of ethane and propene or butene (1) satisfactory adhesion of the rayon cord threads or fabrics used for reinforcement is obtained by a process comprising (1) impregnating the rayon cord thread or fabric with an aqueous dispersion containing (a) a reactive di- or polymethylol phenol resin obtained from a phenol and formaldehyde and (b) a partially unsaturated amorphous copolymer optained by reacting a copolymer of ethene and propene or butene (1) with an N-bromodicarboxylic acid imide, e.g. N-bromo-succinimide, or an N-bromo-carboxylic acid amide, (2) embedding the impregnated materials after drying in a vulcanizable mixture of a partially unsaturated amorphous copolymer of the kind described under (1) (b) which also contains sulphur and accelerators, (3) applying to the composite structure a vulcanisable mixture of the saturated amorphous copolymer of ethene and propene or butene-(1) and at least one peroxide, e.g ...

Process for making rubber articles reinforced with rayon

A composition suitable for treating rayon textiles to improve their adhesion to vulcanizates of unsaturated amorphous terpolymers of ethylene, a second 1-olefine and an unconjugated polyene having 3-22 carbon atoms comprises an aqueous dispersion containing (a) an unsaturated amorphous terpolymer of ethylene a second 1-olefine and an unconjugated polyene with 3-22 carbon atoms which has been grafted with acrylamide and (b) 10-40% by weight based on the unsaturated graft terpolymer of a polymethylol phenol resin prepared from a phenol or substituted phenol and formaldehyde. The polyene used to prepare the terpolymer may be an acyclic diene with terminal double bonds, an acyclic diene with terminal and non-terminal double bonds, a cyclic diene or triene or an endo-cyclic diene. Grafting may be effected by reacting the terpolymer with acrylamide in the presence of a free radical polymerization initiator in an inert solvent, e.g. benzene, chlorobenzene or carbon tetrachloride, or in an aqueous ...

Adhesive epoxy resin composition

A stable adhesive composition is comprised of a polyfunctional epoxide which is the reaction product of a polyglycidyl ether and a water soluble polyhydroxy compound. The polyfunctional epoxide has an epoxy equivalent weight of at least about 130 and is soluble in water at a level of up to about 5 percent by weight. A catalyst is present in the adhesive composition at a level of up to about 0.8 percent by weight as triethylamine.

A METHOD OF ELECTROCHEMICALLY SURFACE TREATING CARBON FIBERS, FIBERS TREATED BY THE METHOD, AND COMPOSITE MATERIALS INCLUDING SUCH FIBERS

Process for manufacturing whisker preform for composite material

In a process for manufacturing a whisker preform for a composite material, a dispersion of a whisker in water or an organic solvent is passed through a sieve and is filtered, and a residual wet whisker cake is dried, with or without prior compression, to produce a cake having a desired density based upon the relationship between the weight of the whisker in the dispersion and the volume of the residual whisker cake after filtration.

Improved reinforced rubber structure

... 1,010,971. Laminates. GOODYEAR TIRE & RUBBER CO. April 19, 1963 [May 1, 1962], No. 15488/63. Heading B5N. The bonding between rubber or synthetic rubber and reinforcements, particularly cords or wires of rayon, nylon, polyester or steel, is improved by applying to the reinforcement an aldehyde/polyfunctional or other heat-reactive resin capable of being cross-linked by an aldehyde or other agent to a thermoset condition and incorporating in the rubber &c. a material having the cross-linking properties. The synthetic rubbers used may be polymers of butadiene, isoprene, 2-methyl-pentadiene-1,3, 2- methyl-pentadiene-2,4, or of piperilene, or butyl rubber, or butadiene-, styrene, or acrylonitrile copolymers, or stereo rubbers such as cis-1,4-polyisoprene or cis-1,4-polybutadiene. The resin used may be an aldehyde-deficient condensation product of a polyhydric or other phenol, or of urea or melamine, with an aldehyde such as formaldehyde, acrolein, glyoxal, furfural, crotonaldehyde, aldol, benzaldehyde ...

REINFORCED RUBBER SHEET STRUCTURE AND A PROCESS FOR PRODUCING THE SAME

... 1323402 Coating BRIDGESTONE TIRE KK 19 April 1971 [23 Feb 1970] 22254/71 Addition to 1288367 Heading B2E [Also in Divisions B5 and D1] A process for the production of a reinforced rubber sheet structure comprises coating one or more organic polymer monofilaments of at least 10 denier, one or more cords or yarns formed from a plurality of said monofilaments or one or more films of an organic polymer with an adhesive composition which comprises a mixture of a liquid aqueous adhesive base which comprises a solution in a condensate obtained by reacting resorcin with less than an equimolar amount of formatin based on the resorcin, of a polyhydric phenol polysulphide having the general formula: wherein the indices x which can be the same or different are integers of from 2 to 8, Y is 2 or 3, n is 0 or an integer of from 1 to 15, and an RFL solution comprising a resorcinformaldehyde resin obtained by reacting resorcin and formaldehyde in a molar ratio of from 1:1 to 1:7 and a natural or synthetic ...

Resin transfer moulding

Adhering Textiles to Rubber

... 1,181,482. Coated polyester textile material. UNIROYAL Inc. 31 Jan., 1968 [23 Feb., 1967], No. 5075/68. Heading B2E. [Also in Divisions B5 and D1] A method of forming a laminate of polyester textile material adhering to rubber comprises dipping the bare polyester material on an aqueous dispersion of an epoxy resin and a blocked isocyanate, and drying the dipped material, preparing a rubber composition containing a methylolated nitro alkane, said nitro alkane having 1 to 6 carbon atoms, and a resorcinol-type methylene acceptor, placing the dried polyester textile material in contact with the rubber composition and vulcanising the rubber so causing the nitro alkane to react with the methylene acceptor. The textile materials may be in the form of yarns, cords or fabrics. The rubber composition may be applied to the textile by calendering. The blocked isocyanate is preferably at least difunctional, the specified blocking groups being derived from a phenol or caprolactam. Specified methylene ...

HEAT STABLE POLYESTER CORD REINFORCED RUBBER STRUCTURE

... 1318589 Reinforced rubber structure GOODYEAR TIRE & RUBBER CO 17 Sept 1970 [3 Oct 1969] 44385/70 Heading D1P [Also in Division C3] A process of manufacturing a heat stable structure containing a heat stabilised polyester cord bonded to rubber with an adhesive composition deposited on the cord prior to its embedding in the rubber comprises introducing in the vicinity of the adhesive bond from 0.025 to 5 parts by wt. per 100 parts by wt. of adhesive of at least one heat stabilizing agent for the polyester selected from a tris [(substituted) aziridinyl] phosphine oxide, a sulphide of general formula: a polycarbodiimide of the general formula: bis (tri-n-butyltin) oxide and a hindered phenolic phosphorus compound having the general formula: wherein R is a hydrocarbon radical (4 to 10c), P is phosphorus and y and z are integers 1 or 2 and x+y=3 and A is selected from the group consisting of wherein R' and R" are the same or different tertiary alkyl R' radicals (4 to 8C) R''' is hydrogen or alkyl ...

Method of bonding synthetic high polymers to polyurethane elastomers

... 833,075. Flexible laminates. GENERAL TIRE & RUBBER CO. July 25, 1957 [July 27, 1956], No. 23643/57. Class 140. Tyre cords of nylon or polyethylene terephthalate are bonded under pressure to polyurethanes comprising the reaction products of generally linear long chain polyglycols and poly-, preferably di-isocyanates with the aid of polyhydroxyphenol-aldehyde resins, preferably formed by applying an aqueous solution containing the resin ingredients and a catalyst to the cords and subsequently drying and heating. The resin used is preferably a resorcinol-formaldehyde condensation product, and the polyglycols are preferably those containing ester or ether groups, examples being the reaction product, of molecular weight about 2000, of ethylene and propylene glycols and adipic acid, and polyalkylene ether glycols, such as poly-ethylene-propylene ether glycol, of molecular weight 600 or above.

REINFORCING ELEMENTS

... 1487060 Improving the bond between RFL adhesive and steel reinforcement elements MONSANTO CO 13 Aug 1976 [15 Aug 1975] 33810/76 Heading B2E An adhesive bond between an RFL organic adhesive and a steel or alloy steel reinforcing element for rubber articles is formed by a process comprising in sequence (a) immersing the steel or alloy steel reinforcing element in an acid- or base-containing aqueous bath for 3 to 25 seconds at 20 to 95‹C, (b) subjecting the element to a water rinse, (c) coating the element with an organosilane of the formula: where X is an amino, glycidoxy or aminoethyl radical and R1 is an alkylene radical of 2 to 4 carbon atoms when X is an amino or glycidoxy radical and -HN-R3-, where R3 is an alkylene radical having 2 or 3 carbon atoms, when X is an aminoethyl radical and where R2 is an alkyl radical of 1 or 2 carbon atoms, (d) dipping the element in an RFL organic adhesive and thereafter (e) curing the adhesive on the surface of the ...

Butyl rubber latex as a fibrous material adhesive

The adhesion of fibrous material to butyl rubber is improved by treating the fibrous material, before adhering it to the rubber, with an aqueous dispersion of butyl rubber latex and a phenolaldehyde resin, the dispersion having a pH between 7.5 and 9. Specified fibrous materials are yarns, cords or fabrics of cotton, silk, ramie, rayon, nylon and glass fibres. The aqueous dispersion may also contain protective agents and emulsifiers.ALSO:A butyl rubber latex, used for treating fibrous material before adhering it to rubber, comprises an aqueous dispersion of a butyl rubber latex and a phenol-aldehyde resin the pH of the dispersion being between 7.5 and 9. Specified butyl rubbers are copolymers of a major proportion of isobutylene with butadiene, isoprene, dimethyl butadiene, dimethallyl, myrcene and allocymene, and specified resins are those of resorcinol with formaldehyde. The aqueous dispersion preferably contains 10-20 per cent of latex solids 1-10 per cent of both phenol and a 37 per ...

Improved reinforced rubber articles

A rubber article reinforced with cord is prepared by dipping relaxed cord in a dilute adhesive to wet it throughout, then partially drying it, immersing the partially dried cord in a second dip comprising the adhesive and an agent for preserving the adhesive bond, drying the cord to set the solids of the second dip on the cord surface, embedding the treated cord in rubber, and vulcanizing the assembly under heat and pressure. The cord may consist of cotton, rayon, nylon, or a linear polyester resin. The adhesive preferably comprises a phenolaldehyde resin in combination with synthetic or natural rubber latex, and may also contain casein, gelatin, wheat protein, dried blood, a wetting agent, another synthetic resin, carbon black, artificial dispersion of rubber, and/or a water-soluble adhesive. The agent for preserving the adhesive bond may comprise urea, thiourea, ethylene thiourea, an amine, e.g. disalicylal propylene diamine, a mixture of N,N1-aryl disubstituted p-phenylene diamines, ...

Prepreg

The present invention relates to a prepreg composite and to a process for manufacturing the prepreg composite. The manufacturing process involves surface treatment and impregnation of a high tenacity fibrous material with a surface treatment agent and a polymer matrix resin material. The fiber may be in the form of a woven, unidirectional or non-woven fabric. The fiber may optionally be coated with a surfactant and/or an adhesion promoter. Prior to treatment, the surface treatment materials may be contained in a dispersion of nano-particles in which each material has a film forming process temperature at a value below the degradation temperature of the fiber. The layers may be applied individually or simultaneously onto the fibers. The coated material is heat dried without compression to form a prepreg composite.

Method for the production of reinforced materials and reinforced materials obtained using this method

A method for making a composite material with non-spherical reinforcing particles embedded in a matrix, is disclosed. In this method, in a first step magnetic and/or superparamagnetic nanoparticles are attached to the non-spherical reinforcing particles, in a second step the resulting reinforcing particles are introduced into a liquid matrix material and/or a liquid matrix-precursor material, and in a third step the material of the matrix is solidified and/or polymerized and/or cross-linked. In accordance with the proposed invention prior to and/or during solidification and/or polymerization and/or cross-linking of the matrix material or the matrix precursor material, respectively, a magnetic field is applied so as to align the reinforcing particles in the matrix and this alignment is fixed in the matrix during and after the third step, wherein the non-spherical reinforcing particles preferably have a length (l) in one dimension of at least 0.5 μm and wherein the weight ratio of the nano-particles to the non-spherical reinforcing particles is below 0.25.

Rigid biofiber thermoplastic composite and articles made therefrom

Coated reinforcing biofiber for thermoplastic articles is disclosed. The coating on the biofiber comprises a plastisol. The coated reinforcing biofiber can be used in thermoplastic compounds to simulate the appearance of natural wood while adding significantly increased flexural modulus for the wood plastic composite (WPC).

Thermoplastic resin impregnated tape

A thermoplastic resin impregnated tape is made of a carbon fiber, which is coated with a sizing at an amount X between 0.05 and 0.30 weight %. The sizing is formed of a heat resistant polymer or a precursor of the heat resistant polymer. The amount X of the sizing is expressed with a following formula: X = W 0 - W 1 W 0 × 100 where W 0 is the weight of the carbon fiber with the sizing, and W 1 is the weight of the carbon fiber without the sizing.

REINFORCEMENT CORD FOR REINFORCING RUBBER PRODUCT, AND RUBBER PRODUCT USING SAME

The reinforcing cord of the present invention includes at least one strand. The strand includes a bundle of filaments that are bundled and twisted together in one direction, and a coating layer that is formed on at least the surface of the bundle. The bundle consists essentially of carbon fiber filaments. The coating layer is a coating layer that is formed from an aqueous treatment agent containing a rubber latex and a crosslinking agent as essential components and a filler as an optional component. In the aqueous treatment agent, the total of the mass of the crosslinking agent and the mass of the filler is in a range of 1 to 50% of the mass of rubber in the rubber latex. 1. A reinforcing cord for reinforcing a rubber product , comprising at least one strand , whereinthe strand comprises: a bundle of filaments that are bundled and twisted together in one direction; and a coating layer that is formed on at least a surface of the bundle,the bundle consists essentially of carbon fiber filaments,the coating layer is a coating layer that is formed from an aqueous treatment agent containing a rubber latex and a crosslinking agent as essential components and a filler as an optional component, andin the aqueous treatment agent, a total of a mass of the crosslinking agent and a mass of the filler is in a range of 1 to 50% of a mass of rubber in the rubber latex.2. The reinforcing cord according to claim 1 , wherein the number of the carbon fiber filaments in the bundle is in a range of 500 to 48000.3. The reinforcing cord according to claim 1 , whereina surface of the carbon fiber filament in the bundle is treated with a sizing agent, andthe sizing agent contains at least one selected from the group consisting of an epoxy group and an amino group.4. The reinforcing cord according to claim 1 , wherein in the aqueous treatment agent claim 1 , the mass of the filler is in a range of 1 to 20% of the mass of the rubber in the rubber latex.5. The reinforcing cord according to ...

Atmospheric plasma treatment of reinforcement cords and use in rubber articles

The present invention is directed to a method of making a cord-reinforced rubber article, comprising the steps of (A) atomizing a mixture of a halogenated hydrocarbon, a carrier gas, and at least one member of the group consisting of hydrocarbon sulfides and polymerizable monomers, to form an atomized mixture; (B) generating an atmospheric pressure plasma from the atomized mixture; (C) exposing a reinforcement cord to the atmospheric pressure plasma to produce a treated reinforcement cord; and (D) contacting the treated reinforcement cord with a rubber composition comprising a diene based elastomer and at least one member of the group consisting of methylene donors and methylene acceptors.

Continuous carbon fiber reinforced thermoplastic plastic composite having excellent impregnation properties and a method for manufacturing the same

A continuous carbon fiber reinforced thermoplastic plastic composite having excellent impregnation properties and a method for manufacturing the same is provided. A continuous carbon fiber reinforced thermoplastic plastic composite in accordance with the present invention comprises a continuous carbon fiber impregnated in thermoplastic resin, and the continuous carbon fiber is a continuous carbon fiber has the width of 4 times to 8 times as wide as the initial fiber bundle.

Carbon-Fiber-Reinforced Resin Composite Material

A carbon-fiber-reinforced resin composite material includes: carbon fibers including carbon fiber bundles and a thermoplastic resin, in which (1) a coefficient of variation (CV1) of a total areal weight of the carbon-fiber-reinforced resin composite material is 10% or lower, (2) a coefficient of variation (CV2) of a carbon fiber volume fraction (Vf) in the carbon-fiber-reinforced resin composite material which is defined by Expression (a) is 15% or lower, and (3) a weight average fiber length of the carbon fibers is 1 to 100 mm. Carbon Fiber Volume Fraction (Vf)=100×Volume of Carbon Fibers/(Volume of Carbon Fibers+Volume of Thermoplastic Resin) . . . Expression (a). 1. A carbon-fiber-reinforced resin composite material comprising:carbon fibers including carbon fiber bundles; and (1) a coefficient of variation (CV1) of a total fiber areal weight of the carbon-fiber-reinforced resin composite material is 10% or lower,', '(2) a coefficient of variation (CV2) of a carbon fiber volume fraction (Vf) in the carbon-fiber-reinforced resin composite material which is defined by Expression (a) is 15% or lower, and', {'br': None, 'Carbon Fiber Volume Fraction (Vf)=100×Volume of Carbon Fibers/(Volume of Carbon Fibers+Volume of Thermoplastic Resin)\u2003\u2003Expression (a).'}, '(3) a weight average fiber length of the carbon fibers is 1 to 100 mm,'}], 'a thermoplastic resin, wherein'}2. The carbon-fiber-reinforced resin composite material according to claim 1 , having a form of a single layer having a thickness of 0.3 mm or more.3. The carbon-fiber-reinforced resin composite material according to claim 1 , whereinthe coefficient of variation (CV1) of the total areal weight of the carbon-fiber-reinforced resin composite material is 5% or lower, andthe coefficient of variation (CV2) of the carbon fiber volume fraction (Vf) in the carbon-fiber-reinforced resin composite material is 10% or lower.4. The carbon-fiber-reinforced resin composite material according to claim 1 , whereinin ...

SIZING AGENT-COATED REINFORCING FIBERS, METHOD FOR PRODUCING SIZING AGENT-COATED REINFORCING FIBERS, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL

Sizing agent-coated reinforcing fibers include reinforcing fibers and a sizing agent containing a polyrotaxane, the reinforcing fibers being coated with the sizing agent. Provided are sizing agent-coated reinforcing fibers that provide a fiber-reinforced composite material with excellent mechanical properties, a method for producing the sizing agent-coated reinforcing fibers, a prepreg including the sizing agent-coated reinforcing fibers, and a fiber-reinforced composite material with excellent mechanical properties including the sizing agent-coated reinforcing fibers. 1. Sizing agent-coated reinforcing fibers comprising:reinforcing fibers; anda sizing agent comprising a polyrotaxane,wherein the reinforcing fibers are coated with the sizing agent.2. The sizing agent-coated reinforcing fibers according to claim 1 , wherein the sizing agent further comprises a compound having at least one epoxy group.3. The sizing agent-coated reinforcing fibers according to claim 2 , wherein the compound having at least one epoxy group is a compound having two or more epoxy groups in its molecule and selected from polyether polyepoxy compounds and polyol polyepoxy compounds.4. The sizing agent-coated reinforcing fibers according to claim 3 , wherein the compound having at least one epoxy group is a glycidyl ether epoxy compound produced by a reaction between epichlorohydrin and at least one compound selected from glycerol claim 3 , digylcerol claim 3 , polyglycerol claim 3 , trimethylolpropane claim 3 , pentaerythritol claim 3 , sorbitol claim 3 , and arabitol.5. The sizing agent-coated reinforcing fibers according to claim 1 , wherein the sizing agent comprises a polyrotaxane in an amount of 5% to 80% by mass based on a total amount of sizing agent.6. The sizing agent-coated reinforcing fibers according to claim 1 , wherein the polyrotaxane comprises a linear molecule having a weight average molecular weight of 15 claim 1 ,000 to 30 claim 1 ,000.7. The sizing agent-coated ...

Impregnation process for a functional fibrous substrate, a liquid monomer syrup for the impregnation process, its method of polymerization and structured article obtained thereof

The present invention relates to an impregnation process for a functional fibrous substrate, a liquid composition for implementing this process and the obtained impregnated fibrous substrate. The impregnated functional fibrous substrate is suitable for manufacturing mechanical or structured parts or articles. In particular the present invention deals with an industrial process for impregnating a functional fibrous substrate or long functional fibers with a viscous liquid composition containing mainly monomer components. This viscous composition is called hereafter liquid monomer syrup. The invention concerns also a functional fibrous substrate pre-impregnated with said syrup which is useful for manufacturing mechanical or structured parts or articles. More particular the impregnation of functional fibrous substrate with the monomer syrup is achieved in a mould. The present invention concerns also manufacturing process for manufacturing mechanical or structured parts or articles and three-dimensional mechanical or structured parts obtained by this process.

REINFORCING FIBER BUNDLE AND CARBON FIBER REINFORCED THERMOPLASTIC RESIN MOLDED BODY USING THE SAME, AND METHOD FOR PRODUCING REINFORCING FIBER BUNDLE

Disclosed are a reinforcing fiber bundle composed of a carbon fiber bundle treated with an emulsion; a carbon fiber reinforced thermoplastic resin molded body using the same; and a method for producing a reinforcing fiber bundle; wherein the emulsion contains a modified polyolefin (A1) comprising at least a metal carboxylate bonded to the polymer chain, and 0.1 to 5,000 moles of an amine compound (B) represented by the following general formula (1), per one mole of the carboxylate group in the modified polyolefin (A1); 1. A reinforcing fiber bundle composed of a carbon fiber bundle treated with an emulsion , wherein the emulsion containsa modified polyolefin (A1) comprising at least a metal carboxylate bonded to the polymer chain, and {'br': None, 'sub': '2', 'R—NH\u2003\u2003(1)'}, '0.1 to 5,000 moles of an amine compound (B) represented by the following general formula (1), per one mole of the carboxylate group in the modified polyolefin (A1);'}wherein the formula (1), R is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms.2. The reinforcing fiber bundle according to claim 1 , which is obtained by immersing the carbon fiber bundle into the emulsion and then drying the carbon fiber bundle.3. The reinforcing fiber bundle according to claim 1 , wherein the mass ratio of the modified polyolefin (A1) is 0.001 to 10% by mass in the emulsion.4. The reinforcing fiber bundle according to claim 1 , wherein the emulsion also contains an unmodified polyolefin (A2) claim 1 , in addition to the modified polyolefin (A1).5. The reinforcing fiber bundle according to claim 1 , wherein the adhesion amount of the modified polyolefin (A1) to the reinforcing fiber bundle claim 1 , or the total adhesion amount of the modified polyolefin (A1) and the unmodified polyolefin (A2) to the reinforcing fiber bundle if it contains the unmodified polyolefin (A2) claim 1 , is 0.1 to 5.0% by mass.6. A carbon fiber reinforced thermoplastic resin molded body wherein the reinforcing ...

CARBON-FIBER REINFORCED POLYPROPYLENE COMPOSITION

Various embodiments disclosed relate to a composition. The present disclosure includes a polypropylene component and a sized carbon-fiber component. An interface is formed between the polypropylene component and the sized carbon-fiber component. 1. A composite comprising:a carbon-fiber component comprising a sizing; anda polypropylene component,wherein:the carbon-fiber component and the polypropylene component define an interface therebetween; andthe sizing comprises a polyurethane resin at least partially coating the carbon-fiber component, and at least one repeating unit of the polyurethane resin comprises at least one nucleophilic side chain interacted with the polypropylene component.2. The composite of claim 1 , wherein the carbon-fiber component is about 1 wt % to about 80 wt % of the composition.3. The composite of or claim 1 , wherein the sizing is about 0.01 wt % to about 30 wt % of the carbon-fiber component.4. The composite of any of to claim 1 , wherein at least one of the nucleophilic side chains is chosen from at least one of a hydroxyl group claim 1 , a carboxyl group claim 1 , and an amine group.5. The composite of any of to claim 1 , wherein at least one of the nucleophilic side chains is an amine group.6. The composite of any of to claim 1 , wherein the carbon-fiber component has a length ranging from about 5 microns to about 5000 meters.7. The composite of any of to claim 1 , wherein the carbon-fiber component comprises one or more carbon-fibers.8. The composite of any of to claim 1 , wherein the polypropylene component is about 1 wt % to about 70 wt % of the composition.9. The composite of any of to claim 1 , wherein the polypropylene component comprises one or more polypropylene resins.13. The composite of any of to claim 1 , wherein n is about 0.1 to about 0.4 of the polypropylene component.14. The composite of claim 9 , wherein at least one of the resins of the polypropylene component comprises at least one of a polypropylene homopolymer or ...

Composition of Phthalonitrile Resin Matrix for Polymer Composite Materials, Method for Fabrication Thereof, Method for Manufacturing of Polymer Composite Material, and Material Obtained by this Method

This invention is related to a resin matrix composition intended for production of a polymer composite material (PCM) or prepregs for PCM, to variants of methods for producing resin matrix compositions, to a method for curing the resin matrix composition, to a polymer composite material and method for its fabrication. The resin matrix composition includes: (1) polymerizable mixture containing one or more bis-phthalonitrile monomers with the general formula: 2. The composition of claim 1 , wherein the reactive diluent is selected from one or more compounds from the group consisting of 4-[3-(dipropargylamino)phenoxy]phthalonitrile claim 1 , 4-[4-(dipropargylamino)phenoxy]phthalonitrile claim 1 , 4-(4-cyanophenoxy)-benzene-1 claim 1 ,2-dicarbonitrile claim 1 , 4-(4-cyanophenoxy)-phthalonitrile claim 1 , 4-(3-cyanophenoxy)-phthalonitrile and 4-(4-aminophenoxy)-phthalonitrile claim 1 , the most preferably from one or more following compounds 4-(4-cyanophenoxy)-benzene-1 claim 1 ,2-dicarbonitrile claim 1 , 4-[3-(dipropargylamino)phenoxy]phthalonitrile claim 1 , 4-[4-(dipropargylamino)phenoxy]phthalonitrile.3. The composition of claim 1 , wherein the active diluent is present in an amount from 1 to 40 wt % of the total weight of the mixture or from 10 to 50 wt % of the total weight of the mixture claim 1 , or from 10 to 40 wt % of the total weight of the mixture claim 1 , or from 20 to 40 wt % of the total weight of the mixture claim 1 , or from 20 to 35 wt % of the total weight of the mixture claim 1 , or from 20 to 30 wt % of the total weight of the mixture claim 1 , preferably from 10 to 40% of the total weight of the mixture claim 1 , or in the amount of 10 to 30% of the total weight of the mixture.4. The composition of claim 1 , wherein said aryl is an optionally substituted aryl C-C claim 1 , preferably an aryl C-C claim 1 , more preferably an unsubstituted aryl C-Cor a substituted aryl C claim 1 , wherein the substituent may be methyl claim 1 , fluoro claim 1 , ...

SHEET

It is an object of the present invention to provide an ultrafine cellulose fiber-containing sheet that is excellent in terms of weather resistance. The present invention relates to a sheet comprising cellulose fibers having a fiber width of 1000 nm or less, wherein the cellulose fibers have anionic functional groups, and the YI increase percentage calculated according to the following equation is 1500% or less. 1. A sheet comprising cellulose fibers having a fiber width of 1000 nm or less , whereinthe cellulose fibers have anionic functional groups, andthe YI increase percentage calculated according to the following equation is 1500% or less:YI increase percentage (%)=(yellowness of the sheet after heating−yellowness of the sheet before heating)/yellowness of the sheet before heating×100, whereinthe yellowness of the sheet after heating is a yellowness measured in accordance with JIS K 7373, after the sheet is subjected to hot pressing at 180° C. at 0.5 MPa for 1 minute, whereas the yellowness of the sheet before heating is a yellowness measured in accordance with JIS K 7373, before the sheet is subjected to the hot pressing.2. The sheet according to claim 1 , wherein the pH of the surface of the sheet is pH 6.00 or more and pH 8.00 or less.3. The sheet according to claim 1 , wherein the haze is 10.0% or less.4. The sheet according to claim 1 , wherein the content of the cellulose fibers is 50% by mass or more claim 1 , with respect to the total solid mass in the sheet.5. The sheet according to claim 1 , which comprises a resin claim 1 , wherein the resin is at least one type selected from a polyol resin claim 1 , a polyether resin claim 1 , and a cellulose derivative.6. The sheet according to claim 1 , comprising an acid component.7. The sheet according to claim 6 , wherein the acid component is at least one type selected from organic acid claim 6 , inorganic acid claim 6 , and the salts thereof.8. The sheet according to claim 6 , wherein the content of the acid ...

PROTON-EXCHANGE MEMBRANE

A proton-exchange membrane includes a polymer matrix, polymer fibers, or a combination thereof. The proton-exchange membrane also includes a proton-conducting material distributed on the polymer matrix, on the polymer fibers, in the polymer fibers, or a combination thereof. 1. A proton-exchange membrane comprising:a polymer matrix, polymer fibers, or a combination thereof; anda proton-conducting material distributed in the polymer matrix, on the polymer fibers, in the polymer fibers, or a combination thereof.2. The membrane of claim 1 , wherein the membrane comprises particles of the proton-conducting material.3. The membrane of claim 1 , wherein the membrane comprises the polymer fibers with the proton-conducting material distributed on the polymer fibers claim 1 , in the polymer fibers claim 1 , or a combination thereof.4. The membrane of claim 1 , wherein the membrane comprises the polymer matrix with the proton-conducting material distributed in the polymer matrix.5. The membrane of claim 4 , wherein the proton-conducting material comprises proton-conducting nanofibers.6. The membrane of claim 1 , wherein the proton-conducting inorganic material comprises an alkali thio-hydroxo metal claim 1 , an alkali thio-hydroxo metalloid claim 1 , a pyrophosphate claim 1 , an ultraphosphate claim 1 , or a combination thereof.7. The membrane of claim 1 , wherein the proton-conducting material comprises cesium thio-hydroxogermanate (CTHG) claim 1 , cerium ultraphosphate claim 1 , cesium ultraphosphate claim 1 , or a combination thereof.8. The membrane of claim 1 , comprising:the polymer matrix comprising polybenzimidazole (PBI); and a core that is continuous along a length of the nanofiber and that comprises the proton-conducting inorganic material, the proton-conducting inorganic material comprising an alkali thio-hydroxogermanate (ATHG), an ultraphosphate, a pyrophosphate, or a combination thereof, and', 'a shell that is continuous along the length of the nanofiber, the ...

FIBERS TREATED WITH POLYMERIZATION COMPOUNDS AND FIBER REINFORCED COMPOSITES MADE THEREFROM

Methods of making fiber reinforced composite articles are described. The methods may include treating fibers with a sizing composition that includes a polymerization compound, and introducing the treated fibers to a pre-polymerized composition. The combination of the treated fibers and pre-polymerized composition may then undergo a temperature adjustment to a polymerization temperature at which the pre-polymerized composition polymerizes into a plastic around the fibers to form the fiber-reinforced composite article. Techniques for introducing the treated fibers to the pre-polymerized composition may include pultrusion, filament winding, reactive injection molding (RIM), structural reactive injection molding (SRIM), resin transfer molding (RTM), vacuum-assisted resin transfer molding (VARTM), long fiber injection (LFI), sheet molding compound (SMC) molding, bulk molding compound (BMC) molding, a spray-up application, and/or a hand lay-up application, among other techniques. 1. A treated fiber for a fiber-reinforced composite article , the treated fiber comprising a fiber surface having a polymerization compound non-covalently contacting the fiber surface , {'br': None, 'sub': 'n', 'R—X-(I)'}, 'wherein the polymerization compound has the formulawherein n is an integer with a value of 1 to 5;R comprises a terminal moiety selected from the group consisting of a hydrogen and a hydrocarbyl group,X comprises a linking moiety that links the R moiety with one or more I moieties; and{'sub': 'n', '(I)comprises one or more polymerization initiator moieties, wherein each of the initiator moieties is capable of initiating a polymerization of one or more lactam monomers, and wherein each of the initiator moieties is the same or different.'}2. The treated fiber of claim 1 , wherein all of the polymerization compound on the fiber surface is exposed to a pre-polymerized composition that polymerizes to form a polymer matrix of the fiber-reinforced composite article.3. The treated ...

Compostable wood composite material for thin-walled articles

A composition comprising a continuous thermoplastic polymer matrix having a melting point greater than 110° C. and, distributed within the matrix, particles of hydrophilic natural fiber material having a sieved size of less than 1.0 mm, the weight ratio of the thermoplastic polymer to the wood particles being from 99:1 to 35:65. An improvement in biodegradability of biopolymers, such as PLA, can be achieved. On the other hand, the addition of wood fibers enhances the material's ability to resist thermal deformation. The present compositions can be used for manufacturing hollow structures, by injection blow molding, of bottles with a wall thickness between 0.1 mm and 5 mm, in particular from 0.3 to 1 mm or continuous extruded products with a wall thickness from 0.3 mm to 1.5 mm. 2. The composition according to claim 1 , wherein the composition is capable of being shaped into a sheet or plate having a total thickness of less than 1.0 mm.3. The composition according to claim 1 , wherein the polymer matrix has an melt flow rate (MFR) between 1 and 70 g/10 min.4. The composition according to claim 3 , wherein the composition has an MFR between 1 and 50 g/10 min.5. The composition according to claim 1 , wherein the thermoplastic polymer has a melting point greater than 150° C.6. The composition according to claim 1 , wherein the thermoplastic polymer comprises a biodegradable polymer.7. The composition according to claim 1 , wherein the hydrophilic natural fiber material comprises a lignocellulosic material obtained from annual or perennial plants or wooden materials.8. The composition according to claim 1 , wherein the hydrophilic natural fiber material is selected from softwood or hardwood.9. The composition according to claim 1 , wherein the weight ratio of thermoplastic polymer to wood particles is from 65:35 to 95:5.10. The composition according to claim 1 , further comprising one or more additives selected from the group consisting of metal stearates claim 1 , ...

SIZING AGENT FOR REINFORCEMENT FIBER AND APPLICATION THEREOF

The present invention aims to provide a sizing agent for a reinforcement fiber used for reinforcing thermoplastic matrix resins. The sizing agent uniformly spreads on reinforcement fiber surface and imparts, to a reinforcement fiber, both excellent splittability and bonding performance to thermoplastic matrix resins. 1. A sizing agent for a reinforcement fiber used to reinforce a thermoplastic matrix resin , the sizing agent comprising essentially:an ester compound (A) having a vinyl ester group, acrylate group or methacrylate group bonded to at least one of the chain ends of the main chain of the ester compound (A); and{'sub': '4-14', 'a polyoxyalkylene alkyl ether (B) being an adduct between an alkylene oxide and a Cmonohydric alcohol;'}wherein, when water is added to the sizing agent thereby producing a mixture with a nonvolatile content of 1 weight %, the mixture exhibits a dynamic surface tension ranging from 40 to 55 mN/m determined by the maximum bubble pressure method where gas bubbles are blown into the mixture at the rate of one bubble per 100 milliseconds.2. The sizing agent for a reinforcement fiber according to claim 1 , wherein the weight ratio of the ester compound (A) ranges from 10 to 99 wt % of the nonvolatile components of the sizing agent claim 1 , and the weight ratio of the polyoxyalkylene alkyl ether (B) ranges from 0.5 to 10 wt % of the nonvolatile components of the sizing agent.3. The sizing agent for a reinforcement fiber according to claim 1 , further comprising at least one resin selected from a group consisting of an aromatic polyester-polyurethane resin (C) and an aromatic polyester resin (D).4. The sizing agent for a reinforcement fiber according to claim 3 , wherein the weight ratio of the sum of the ester compound (A) and the resin ranges from 60 to 99 wt % of the nonvolatile components of the sizing agent claim 3 , and the weight ratio of the polyoxyalkylene alkyl ether (B) ranges from 0.5 to 10 wt % of the nonvolatile components of ...

Fiber reinforced polypropylene composite

The present invention relates to a new composite comprising glass or carbon fibers and polymer-based fibers as well as to a process for the preparation of the composite and molded articles made from said composite.

METHOD OF FABRICATING CARBON NANOTUBE SHEET SCROLLED FIBER REINFORCED POLYMER COMPOSITES AND COMPOSITIONS AND USES THEREOF

A novel method of fabricating carbon nanotube sheet scrolled fiber and fiber tows (carbon, graphite, glass, natural polymer, synthetic polymer, metallic, silicon carbide, Kevlar, etc.) in composites with improved interfacial shear strength, compressive strength, yield strength, stiffness and toughness has been reported. Single or multiple layers of carbon nanotube sheet, with a bias/wrapping angle of 0° and 90°, has been scrolled around single fiber and fibers tows to improve the above mentioned mechanical properties of the matrix surrounding the fiber. Other common methods of growing CNTs directly on the fibers actually damage the fiber surface during the required precursor deposition and CNTs growth process. This demonstrated solid-state method overcomes such known problems. The CNTs sheet scrolled fiber is embedded into the polymer matrix exhibits significant (80%) increase in interfacial shear strength, compressive strength and toughness. 1. A method comprising:(a) selecting a fiber material selected from the group consisting of fibers and fiber tows; '(i) the step of helically wrapping wraps the individual wrapping nanofibers or individual nanofiber bundles more than one complete turn about the fiber material; and', '(b) helically wrapping nanofibers or nanofiber bundles from a first nanofiber sheet about the fiber material to provide nanofiber-scrolled fibers, wherein'}(c) embedding the nanofiber-scrolled fibers in a polymer matrix to form a polymer composite that is reinforced by nanofiber-scrolled fibers.2. The method of claim 1 , wherein the helically wrapping is performed at a first wrapping angle between 0° to 90°.3. The method of claim 1 , wherein the helically wrapping is performed at a first wrapping angle between 0° to 30°.4. The method of claim 1 , wherein the fiber material is selected from the group consisting of carbon fiber claim 1 , graphite fiber claim 1 , glass fiber claim 1 , natural polymer fiber claim 1 , synthetic polymer fiber claim 1 , ...

METHOD FOR MANUFACTURING A DRY-LAID MAT FOR THERMOFORMING

The present invention is directed to a method for manufacturing a drylaid mat suitable for thermoforming. The present invention is directed to a dry forming process, wherein cellulosic or lignocellulosic fibers have been impregnated, but not cross linked, with a cross linking agent prior to forming in a dry forming method. The invention is also directed to dry-laid mats manufactured according to the method as well as to thermoformed products manufactured from such dry-laid mats. 1. A method for manufacturing a dry-laid mat suitable for thermoforming , the method comprising the steps of:a) mixing or impregnating cellulosic or lignocellulosic fibers with a cross linking agent, followed by drying the mixture of cellulosic or lignocellulosic fibers and cross linking agent at such conditions that a temperature of the fibers does not exceed 150° C.; followed byb) forming a mat comprising the product of step a), said product of step a) having a moisture content of less than 10 wt-%, by a dry forming process carried out at such conditions that the temperature of the fibers does not exceed 150° C.2. The method according to claim 1 , wherein the mat formed in step b) further comprises at least one thermoplastic polymer.3. The method according to claim 1 , wherein the mat formed in step b) further comprises at least one coupling agent.4. The method according to claim 1 , wherein the dry forming in step b) is carried out by air-laying.5. The method according to claim 1 , wherein the cross linking agent is an organic carboxylic acid having at least two carboxyl groups.6. The method according to claim 5 , wherein the cross linking agent is citric acid.7. The method according to claim 1 , wherein the cellulosic or lignocellulosic fibers are provided in a form of chemical pulp claim 1 , thermomechanical pulp (TMP) claim 1 , mechanical fiber intended for medium density fiberboard (MDF-fiber) claim 1 , or chemo-thermomechanical pulp (CTMP).8. The method according to claim 1 , wherein ...

FIBRE REINFORCED COMPOSITE MOULDING

A method of manufacturing a moulded article and a moulding material suitable therefor comprising the steps of providing a moulding material comprising a fibrous reinforcement material, a first resin material and a second resin material, the first resin material being at least partially processed; providing the moulding material in relation to a mould to form a moulding; and processing the moulding to form the moulded article by providing energy input to the moulding. The energy input for processing the moulding to form the moulded article is less than the energy input required for processing the moulded article from a moulding. 1. A method of manufacturing a moulded article comprising:a) providing a moulding material comprising a fibrous reinforcement material, a first resin material and a second resin material the first resin material being at least. partially processed; followed byb) providing the moulding material in relation to a mould to form a moulding; andc) in-mould processing the moulding to form the moulded article by providing energy input to the moulding, the energy input for processing the moulding to form the moulded article being less than the energy input required for manufacturing the moulded article from a moulding comprising the same first and second resin material in which the first resin material is unprocessed.2. A method of manufacturing a moulded article according to wherein said in-mould processing comprisesheating said moulding to a cure temperature and maintaining the moulding, at a dwell temperature in a dwell stage, the dwell stage being shorter than the dwell stage required for manufacturing the moulded article from a moulding comprising the same first and second resin material in which the first resin material is unprocessed.3. The method of claim 1 , wherein the moulding is processed by heating to a cure temperature and maintaining the moulding at a dwell temperature in a dwell stage claim 1 , the dwell stage being shorter than the ...

FIBER-REINFORCED THERMOPLASTIC-RESIN MOLDING MATERIAL AND METHOD OF MANUFACTURING FIBER-REINFORCED THERMOPLASTIC-RESIN MOLDING MATERIAL

A fiber reinforced thermoplastic resin molding material includes a carbon fiber reinforced thermoplastic resin molding material, comprising 5 to 45 parts by weight of carbon fibers, 94 to 35 parts by weight of a thermoplastic resin, and 1 to 20 parts by weight of a compound having a melt viscosity lower than the thermoplastic resin based on 100 parts by weight of the total amount of the carbon fibers, the thermoplastic resin, and the compound having a melt viscosity at 200° C. lower than that of the thermoplastic resin, wherein the thermoplastic resin is contained at an outer side of a composite obtained by impregnating the carbon fibers with the compound, and the length of the carbon fibers and the length of the carbon fiber reinforced thermoplastic resin molding material are substantially the same. 1. A fiber reinforced thermoplastic resin molding material comprising:a carbon fiber reinforced thermoplastic resin molding material (X), comprising 5 to 45 parts by weight of carbon fibers (A), 94 to 35 parts by weight of a thermoplastic resin (C), and 1 to 20 parts by weight of a compound (D) having a melt viscosity at 200° C. lower than that of the thermoplastic resin (C) based on 100 parts by weight of the total amount of the carbon fibers (A), the thermoplastic resin (C), and the compound (D) having a melt viscosity at 200° C. lower than that of the thermoplastic resin (C), wherein the thermoplastic resin (C) is contained at an outer side of a composite (F) obtained by impregnating the carbon fibers (A) with the compound (D), and the length of the carbon fibers (A) and the length of the carbon fiber reinforced thermoplastic resin molding material are substantially the same; andan organic fiber reinforced thermoplastic resin molding material (Y), comprising 1 to 45 parts by weight of organic fibers (B), 94 to 35 parts by weight of a thermoplastic resin (G), and 1 to 20 parts by weight of a compound (H) based on 100 parts by weight of the total amount of the organic ...

Puncture-Healing Thermoplastic Resin Carbon-Fiber Reinforced Composites

A composite comprising a combination of a self-healing polymer matrix and a carbon fiber reinforcement is described. In one embodiment, the matrix is a polybutadiene graft copolymer matrix, such as polybutadiene graft copolymer comprising poly(butadiene)-graft-poly(methyl acrylate-co-acrylonitrile). A method of fabricating the composite is also described, comprising the steps of manufacturing a pre-impregnated unidirectional carbon fiber preform by wetting a plurality of carbon fibers with a solution, the solution comprising a self-healing polymer and a solvent, and curing the preform. A method of repairing a structure made from the composite of the invention is described. A novel prepreg material used to manufacture the composite of the invention is described. 1. A method of fabricating a composite comprising the steps of:manufacturing a pre-impregnated unidirectional carbon fiber preform by wetting a plurality of carbon fibers with a solution, the solution comprising a self-healing polymer and a solvent; and curing the preform with heat and pressure.2. The method of claim 1 , wherein the self-healing polymer comprises a polybutadiene graft copolymer.3. The method of claim 2 , wherein the self-healing polymer comprises poly(butadiene)-graft-poly(methyl acrylate-co-acrylonitrile).4. The method of claim 2 , wherein the solvent comprises N-methylpyrrolidone.5. The method of claim 1 , wherein the curing step comprises processing the wetted fibers in a vacuum press.6. The method of claim 5 , wherein the curing step comprises the steps of:increasing the temperature in the vacuum press from about 25° C. to about 150° C. at about 2° C. per minute under full vacuum and holding at about 150° C. for about 60 minutes under full vacuum;increasing the temperature in the vacuum press to about 225° C. at about 2° C. per minute under full vacuum and holding at about 225° C. for about 60 minutes under full vacuum and about 1.7 MPa compaction pressure; andcooling the vacuum press to ...

FIBER TREATMENT AGENT, CARBON FIBERS TREATED WITH FIBER TREATMENT AGENT, AND CARBON FIBER COMPOSITE MATERIAL CONTAINING SAID CARBON FIBERS

An object of the present invention is to provide a fiber treatment agent that is capable of forming on fibers a film that has excellent water resistance and excellent adhesion to a matrix resin. The present invention provides a fiber treatment agent comprising an aqueous medium, a water-insoluble polyamide dispersed in the aqueous medium, and a water-soluble polyamide that is present in an amount of 2 to 50 parts by mass per 100 parts by mass of the water-insoluble polyamide. 1. A fiber treatment agent comprising an aqueous medium , a water-insoluble polyamide dispersed in the aqueous medium , and a water-soluble polyamide that is present in an amount of 2 to 50 parts by mass per 100 parts by mass of the water-insoluble polyamide.2. The fiber treatment agent according to claim 1 , wherein the water-insoluble polyamide is at least one member selected from the group consisting of nylon 6 claim 1 , nylon 66 claim 1 , nylon 610 claim 1 , nylon 11 claim 1 , nylon 12 claim 1 , nylon 6/66 copolymer claim 1 , nylon 6/610 copolymer claim 1 , nylon 6/11 copolymer claim 1 , nylon 6/12 copolymer claim 1 , nylon 6/66/11 copolymer claim 1 , nylon 6/66/12 copolymer claim 1 , nylon 6/66/11/12 copolymer claim 1 , nylon 6/66/610/11/12 copolymer claim 1 , dimer acid-based polyamide resins claim 1 , and nylon elastomers.3. The fiber treatment agent according to claim 1 , wherein the dispersed water-insoluble polyamide has a mean particle size of 0.05 to 20 μm.4. The fiber treatment agent according to claim 1 , wherein the water-soluble polyamide comprises a tertiary amine component or a polyalkylene glycol component in its molecular chain.5. The fiber treatment agent according to claim 1 , wherein the water-insoluble polyamide and the water-soluble polyamide have glass transition temperatures with a difference that is not more than 100° C.6. The fiber treatment agent according to claim 1 , which claim 1 , upon drying claim 1 , forms a film that is water-resistant.7. The fiber treatment ...

SYSTEM FOR PRODUCING A FULLY IMPREGNATED THERMOPLASTIC PREPREG

Fiber-containing polymethyl methacrylate (PMMA) prepregs are described that include a first and second plurality of fibers. The second plurality of fibers is made from a different material than the first plurality of fibers. The PMMA prepregs also contain a polymerized resin that includes polymethyl methacrylate that has been formed from a reactive resin composition that includes methyl methacrylate. Methods of making fiber-containing PMMA prepregs are also described. 1. A fiber-containing polymethyl methacrylate prepreg comprising:a first plurality of fibers;a second plurality of fibers made from a different material than the first plurality of fibers; anda polymerized resin comprising the polymethyl methacrylate, wherein the polymerized resin is formed from a reactive resin composition comprising methyl methacrylate.2. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein at least one of the first plurality of fibers and the second plurality of fibers are reactive fibers with a reactive agent present on the surface of the reactive fibers.3. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein the first plurality of fibers and the second plurality of fibers are formed into a fiber mat.4. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein the first plurality of fibers and the second plurality of fibers are formed into one or more layers of fiber mat.5. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein the first plurality of fibers are formed into a first fiber mat and the second plurality of fibers are formed into a second fiber mat.6. The fiber-containing polymethyl methacrylate prepreg of claim 5 , wherein the prepreg comprises a stack of layers of the first fiber mat and the second fiber mat on top of each other.7. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein the first plurality of fibers comprises fibers selected from glass fibers claim 1 , ...

Carbon fibre fibre-sizing containing nanoparticles

A carbon fibre material is coated with nanoparticles, where the coating contains from 0.01 to less than 10% by weight of nanoparticles, based on the dry weight of the coated fibre material, and the coating may optionally be involved in further reactions.

MANUFACTURE OF DEGRADABLE POLYCYANURATE BULK MOLDING COMPOSITIONS

A process for the manufacture of a degradable polycyanurate bulk molding composition includes: contacting a liquid cyanate ester monomer with an additive material and a polymerization catalyst to form a reaction mixture; maintaining a temperature of the reaction mixture at about 80° C. to about 100° C. to form a polycyanurate product having a viscosity of about 120 to about 200 centipoise at 23° C.; heating a reinforcing filler at a temperature of about 50 to about 150° C. to form a pre-heated reinforcing filler; and blending the polycyanurate product with the pre-heated reinforcing filler to form the degradable polycyanurate bulk molding composition. The bulk molding composition can be used to form a degradable polycyanurate article. 1. A process for the manufacture of a degradable polycyanurate bulk molding composition , the process comprising:contacting a liquid cyanate ester monomer with an additive material and a polymerization catalyst to form a reaction mixture;maintaining a temperature of the reaction mixture at about 80° C. to about 100° C. to form a polycyanurate product having a viscosity of about 120 to about 200 centipoise at 23° C.;heating a reinforcing filler at a temperature of about 50 to about 150° C. to form a pre-heated reinforcing filler; andblending the polycyanurate product with the pre-heated reinforcing filler to form the degradable polycyanurate bulk molding composition.2. The process of claim 1 , whereinthe liquid cyanate ester monomer comprises bisphenol E cyanate ester, andthe process comprises contacting bisphenol E cyanate ester and the additive material in the presence of the polymerization catalyst at a temperature of less than about 40° C. for about 10 minutes to about 2 hours to form the reaction mixture.3. The process of claim 1 , whereinthe liquid cyanate ester monomer comprises bisphenol A cyanate ester, and melting bisphenol A cyanate ester to form the liquid cyanate ester monomer;', 'contacting the liquid cyanate ester monomer ...

Reinforcing fiber, method for manufacturing same, and molded body using same

Provided are reinforcing fibers using an adhesive component not containing resorcinol and formaldehyde, which are excellent in adhesiveness to rubber and which can be efficiently produced while preventing contamination of production facilities, and a method for producing them, as well as a molded article using them. The reinforcing fibers have an adhesive component that contains a conjugated diene rubber and an oil, in at least a part of the surfaces thereof, wherein the vapor pressure at 20° C. of the oil is 10 Pa or less.

METAL-RESIN COMPOSITE MEMBER FOR TIRE, AND TIRE

A metal-resin composite member for a tire, comprising plural metal cords that are positioned alongside each other, an adhesive layer that is disposed on the metal cords, and a resin layer that is disposed on the adhesive layer, the metal-resin composite member satisfying at least one of the following (1) or (2): (1) the adhesive layer is independently disposed on each of the plural metal cords, and at least one of the adhesive layers has a cross-sectional shape that has a projecting portion; (2) the adhesive layer is integrally disposed on all of the plural metal cords, and a region consisting of the metal cords and the adhesive layer has a cross-sectional shape that has, between the metal cords, a portion that is narrower in width than a portion at which the metal cords are disposed. 1. A metal-resin composite member for a tire , comprising plural metal cords that are positioned alongside each other , an adhesive layer that is disposed on the metal cords , and a resin layer that is disposed on the adhesive layer , the metal-resin composite member satisfying at least one of the following (1) or (2):(1) the adhesive layer is independently disposed on each of the plural metal cords, and when a cross-section of the metal-resin composite member is viewed perpendicularly to a length direction of the metal cords, at least one of the adhesive layers has a cross-sectional shape that has a projecting portion that projects toward a metal cord that is adjacent to a metal cord on which the adhesive layer is disposed;(2) the adhesive layer is integrally disposed on all of the plural metal cords, and when a cross-section of the metal-resin composite member is viewed perpendicularly to a length direction of the metal cords, a region consisting of the metal cords and the adhesive layer has a cross-sectional shape that has, between the metal cords, a portion that is narrower in width than a portion at which the metal cords are disposed.2. The metal-resin composite member for a tire ...

SIMULTANEOUS OPTIMIZATION OF FIBER SIZING IN-LINE WITH THE PULTRUSION PROCESS

The present disclosure relates to a pultrusion process for preparing a reinforced thermoset polyurethane composite, and specifically relates to a pultrusion process for simultaneous optimization of fiber sizing continuously along with the pultrusion process without any interruption by contacting the fibers with a sizing composition. 1. A pultrusion process for preparing a reinforced thermoset polyurethane composite , the process comprising the steps of:a) contacting a plurality of reinforcing fibers with a sizing composition comprising at least one sizing agent selected from at least one polyimine having a weight average molecular weight in a range of ≥800 g/mol to ≤1,000,000 g/mol determined according to gel permeation chromatography, to obtain a plurality of sized reinforcing fibers;b) coating the plurality of sized reinforcing fibers obtained in step a) with a precursor mixture comprising (i) at least one di- or polyisocyanate and (ii) at least one polyol to obtain a plurality of coated sized reinforcing fibers; andc) passing the plurality of coated sized reinforcing fibers obtained in step b) through at least one die and at least one heating zone to obtain the reinforced thermoset polyurethane composite.2. The pultrusion process according to claim 1 , wherein the plurality of reinforcing fibers is selected from the group consisting of glass fibers claim 1 , ceramic fibers claim 1 , metal fibers claim 1 , carbon fibers claim 1 , natural fibers claim 1 , polyester fibers claim 1 , polyaramid fibers claim 1 , basalt fibers and nylon fibers.3. The pultrusion process according to claim 1 , wherein the sizing composition further comprises surfactants claim 1 , solvents claim 1 , film-forming agents claim 1 , lubricants and wetting agents.4. The pultrusion process according to claim 1 , wherein steps a) claim 1 , b) and c) are performed uninterrupted continuously.5. The pultrusion process according to claim 1 , wherein the sizing composition comprises ≥1 wt. % to ≤99 ...

GRAPHENE-AUGMENTED COMPOSITE MATERIALS

Composite materials are augmented with functionalized graphene having added amine groups, benzoxazine groups, imide groups, or a combination of amine groups and imide groups on a surface of the graphene, epoxide groups formed on at least one edge of the graphene and/or holes formed through the graphene. The functionalized graphene is integrated into a composite material as a supplement to or as a replacement for either the carbon reinforcement material or the resin matrix material to increase strength of the composite materials, and may be in the form of a functionalized graphene nanoplatelet, a flat graphene sheet or film, or a rolled or twisted graphene sheet or film. 1. A composite material comprising carbon reinforcement fibers and a matrix material , the matrix material comprising 0.1% to 100% by weight functionalized graphene nanoplatelets having imide groups formed on a surface of the graphene nanoplatelets.2. The composite material of claim 1 , wherein the graphene nanoplatelets further comprise amine groups formed on the surface of the graphene nanoplatelets.3. The composite material of claim 1 , wherein the graphene nanoplatelets further comprise holes formed through the graphene nanoplatelets.4. The composite material of claim 3 , wherein the holes are substantially circular and have a diameter of 1-2 nanometers.5. The composite material of claim 3 , wherein the holes have a size of about 12-80 carbon atoms.6. The composite material of claim 2 , wherein the imide groups and the amine groups on the surface of the graphene nanoplatelets have a surface density of about 4.0E10 to about 2.0E12 groups per square millimeter.7. The composite material of claim 2 , wherein about 0.1% to about 5.0% of carbon atoms in the graphene nanoplatelets have imide groups or amine groups bonded thereto.8. The composite material of claim 2 , wherein the matrix material comprises an aerospace-grade bismaleimide resin having 0.1% to 5.0% by weight functionalized graphene ...

FIBER-REINFORCED COMPOSITE MATERIAL

A fiber-reinforced composite material of the present invention is a fiber-reinforced composite material comprising: an epoxy resin cured product obtained by curing an epoxy resin composition and a reinforcing fiber, wherein the epoxy resin composition comprises an epoxy resin (A) and a curing agent (B); 10 to 80% by mass of the curing agent (B) is 1,2,4-cyclohexanetricarboxylic acid-1,2-anhydride; and the reinforcing fiber comprises one or more selected from the group consisting of a carbon fiber, an aramid fiber, and a boron fiber. 1. A fiber-reinforced composite material , comprising:an epoxy resin cured product obtained by curing an epoxy resin composition; anda reinforcing fiber,whereinthe epoxy resin composition comprises an epoxy resin (A) and a curing agent (B),10 to 80% by mass of the curing agent (B) is 1,2,4-cyclohexanetricarboxylic acid-1,2-anhydride, andthe reinforcing fiber comprises at least one selected from the group consisting of a carbon fiber, an aramid fiber, and a boron fiber.2. The fiber-reinforced composite material according to claim 1 , wherein the reinforcing fiber is carbon fiber.3. The fiber-reinforced composite material according to claim 1 , wherein a blending mass ratio between the epoxy resin cured product and the reinforcing fiber (cured product:reinforcing fiber) is 80:20 to 20:80.4. The fiber-reinforced composite material according to claim 1 , wherein the curing agent (B) further comprises at least one selected from the group consisting of methylhexahydrophthalic anhydride claim 1 , methyltetrahydrophthalic anhydride claim 1 , hexahydrophthalic anhydride claim 1 , tetrahydrophthalic anhydride claim 1 , methylnadic anhydride claim 1 , and dihydromethylnadic anhydride.5. The fiber-reinforced composite material according to claim 2 , wherein a blending mass ratio between the epoxy resin cured product and the reinforcing fiber (cured product:reinforcing fiber) is 80:20 to 20:80.6. The fiber-reinforced composite material according to ...

Random Mat and Fiber-Reinforced Composite Material

There is provided a random mat including carbon fibers and a matrix resin, wherein the carbon fibers in the random mat have an average fiber length in a range of 3 mm to 100 mm, a fiber areal weight of the carbon fibers is 25 to 10,000 g/m, the carbon fibers include a specific carbon fiber bundles having a specific opening degree in a specific amount per the total carbon fibers, and the specific carbon fiber bundles with a thickness of 100 μm or more are included in a ratio of less than 3% of the number of the total specific carbon fiber bundles. 1. A random mat comprising carbon fibers and a matrix resin ,wherein the carbon fibers in the random mat have an average fiber length in a range of 3 mm to 100 mm,{'sup': '2', 'a fiber areal weight of the carbon fibers is 25 to 10,000 g/m,'}at least one of fiber bundles including the carbon fibers of less than a critical number of single fiber being defined by the following formula (1) and a single fiber, and carbon fiber bundles (A) constituted by the carbon fibers of the critical number of single fiber or more are present in the random mat,a ratio of the carbon fiber bundles (A) to a total amount of the carbon fibers in the random mat is a range of 20 Vol % to 99 Vol %,an average number (N) of fibers in the carbon fiber bundles (A) satisfies the following formula (2), and [{'br': None, 'i': 'D', 'Critical number of single fiber=600/\u2003\u2003(1)'}, {'br': None, 'sup': 4', '2', '5', '2, 'i': /D', ' Подробнее

RESIN COMPOSITE AND METHOD FOR PRODUCING RESIN COMPOSITE

It is an object of the present invention to provide a resin composite that is excellent in water resistance and is capable of exerting sufficient strength even under wet conditions. The present invention relates to a resin composite comprising a resin, fibers having an ionic functional group, and a polyvalent ion. The fibers having an ionic functional group are preferably cellulose fibers having a fiber width of 1000 nm or less. 1. A resin composite comprising a resin , fibers having an ionic functional group , and a polyvalent ion.2. The resin composite according to claim 1 , wherein the fibers are cellulose fibers having a fiber width of 1000 nm or less.3. The resin composite according to claim 1 , wherein the ionic functional group is an anionic functional group.4. The resin composite according to claim 1 , wherein the ionic functional group is a phosphoric acid group.5. The resin composite according to claim 1 , wherein the polyvalent ion is a metal ion.6. The resin composite according to claim 1 , wherein the resin is a hydrophilic resin.7. The resin composite according to claim 1 , wherein when the mass of the resin composite immersed in ion-exchanged water for 24 hours is defined as E and the mass of the resin composite left to stand for 24 hours under conditions of 23° C. and a relative humidity of 50% is defined as F claim 1 , the water absorption rate represented by (E−F)/F×100 is 500% or less.8. The resin composite according to claim 1 , wherein when the area of the resin composite immersed in ion-exchanged water for 24 hours is defined as G and the area of the resin composite left to stand for 24 hours under conditions of 23° C. and a relative humidity of 50% is defined as H claim 1 , the rate of expansion and contraction represented by G/H×100 is 130% or less.9. The resin composite according to claim 1 , wherein the resin composite is a sheet.10. The resin composite according to claim 1 , wherein in the case of measuring the concentrations of the fibers ...

POLYMER COMPOSITE STRENGTHENED WITH CARBON FIBER SURFACE-MODIFIED BY PLASMA TREATMENT AND METHOD FOR PRODUCING POLYMER COMPOSITE

Provided are an engineering plastic composite and a method for producing the same. The engineering plastic composite includes a carbon fiber having a surface modified by a hydrogen plasma and including a functional group and an engineering plastic. The carbon fiber is mixed with the engineering plastic to constitute a composite. 1. An engineering plastic composite comprising:a carbon fiber having a surface modified by a hydrogen plasma and including a functional group; andan engineering plastic,wherein:the carbon fiber is mixed with the engineering plastic to constitute a composite.2. The engineering plastic composite as set forth in claim 1 , wherein:the modified carbon fiber includes functional groups containing carbon (C) and hydrogen (H).3. The engineering plastic composite as set forth in claim 1 , wherein:the modified carbon fiber is in the range from 20 to 30 percent by volume of the engineering plastic.4. The engineering plastic composite as set forth in claim 1 , wherein:the carbon fiber is any one of a PAN-based carbon fiber, a PITCH-based carbon fiber, and a Rayon-based carbon fiber,a surface of the carbon fiber is coated with polyurethane, andthe polyurethane is removed by a hydrogen plasma treatment.5. The engineering plastic composite as set forth in claim 1 , wherein:a tensile strength of the engineering plastic is less than or equal to 239 MPa at room temperature, anda tensile strength of the engineering plastic composite is less than or equal to 150 MPa at temperature of 150 degrees Celsius.6. The engineering plastic composite as set forth in claim 1 , wherein:a coefficient of friction of the engineering plastic composite is less than or equal to 0.12.7. The engineering plastic composite as set forth in claim 1 , wherein:a yield strength of the engineering plastic composite is less than or equal to 149 MPa.8. The engineering plastic composite as set forth in claim 1 , wherein:a modulus of elasticity of the engineering plastic composite is less than ...

ACOUSTIC PRODUCT COMPOSED OF COMPOSITE MATERIAL

The invention relates to an acoustic product composed of composite material, such as a musical musical instrument, a part thereof, an acoustic equipment or like, which is manufactured from raw material comprising at least cellulose based substance and plastic based substance by means of a thermoplastic process, such as by pressing, compression molding, injection molding, extrusion, blow molding by heat, rotational molding and/or the like. The acoustic product has a material composition consisting of fiber substance () based on surface modified cellulose and plastic based substance (), wherein the product has an essentially wood-like, but isotropic sound. 1. An acoustic product composed of composite material , which is manufactured from raw material , comprising at least a cellulose based substance and a plastic based substance , by means of a thermoplastic process , including one or more of pressing , compression molding , injection molding , extrusion , blow molding by heat , rotational molding , the acoustic product having a material composition including a fiber substance based on surface modified cellulose and a plastic based substance in which orientation of the material is faded out , wherein the product has an essentially wood-like , but isotropic sound in three dimensions.2. An acoustic product according to claim 1 , comprising a percolation that at least partly goes through its material in the form of a continuous network (IPN/interpenetrating network) formed by the surface modified cellulose fibers.3. An acoustic product according to claim 1 , comprising a space claim 1 , being left between the surface modified cellulose fibers in the material claim 1 , that is filled with plastic substance that forms a continuous network (IPN).4. An acoustic product according to claim 1 , comprising separate networks (IPN) going continuously trough the material of the product claim 1 , the networks being formed at least of the surface modified cellulose fiber substance ...

RESIN SUPPLY MATERIAL, METHOD OF USING REINFORCING FIBERS, PREFORM, AND METHOD OF PRODUCING FIBER-REINFORCED RESIN

A resin supply material is used for molding a fiber-reinforced resin, includes reinforcing fibers and a resin, wherein a fiber weight content Wfi of the reinforcing fibers as expressed by formula (I) is 30% or less, and/or a fiber volume content Vfi of the reinforcing fibers as expressed by formula (II) is 20% or less 124.-. (canceled)25. A resin supply material used for molding a fiber-reinforced resin , the resin supply material comprising reinforcing fibers and a resin , wherein a fiber weight content Wfi of the reinforcing fibers as expressed by formula (I) is 30% or less , and/or a fiber volume content Vfi of the reinforcing fibers as expressed by formula (II) is 20% or less{'br': None, 'i': Wfi=Wf', 'Wf', 'Wr, '1/(1+1)×100(%)\u2003\u2003(I)'}Wf1: fiber weight (g) in resin supply material {'br': None, 'i': Vfi=Vf', 'Vp, '1/1×100(%)\u2003\u2003(II)'}, 'Wr1: resin weight (g) in resin supply material'}{'sup': '3', 'Vf1: fiber volume (mm) in resin supply material'}{'sup': '3', 'Vp1: volume (mm) of resin supply material.'}26. The resin supply material according to claim 25 , wherein a change ratio P of the weight of the resin before and after molding as expressed by formula (III) is 0.03 to 0.99{'br': None, 'i': P=Wr', 'Wr, '2/1\u2003\u2003(III)'}Wr1: resin weight (g) in resin supply material before moldingWr2: resin weight (g) in resin supply material after molding.27. The resin supply material according to claim 25 , wherein a change ratio Q of the volume content of the reinforcing fibers before and after molding as expressed by formula (IV) is 1.1 to 30{'br': None, 'i': 'Q=Vft/Vfi', '(IV)'}Vfi: fiber volume content before moldingVft: fiber volume content after molding.28. A method of using reinforcing fibers to be used in a resin supply material which is used for molding a fiber-reinforced resin and includes reinforcing fibers and a resin claim 25 , the method comprising arranging the reinforcing fibers as a web in which a thickness change ratio R of the ...

METHODS FOR TREATING REINFORCING FIBER AND TREATED REINFORCING FIBERS

Surface treated fibers and methods of treating individual fiber surfaces. One exemplary method includes subjecting a precursor gas to a plasma-generating discharge within an atmospheric plasma generator to generate a reactive species flow including reactive oxygen species, and exposing a reinforcing fiber to the reactive species flow for a treatment time sufficient to functionalize the reinforcing fiber with oxygen such that at least one of a composite matrix interfacial adhesion of the reinforcing fiber or a composite matrix interfacial strength of the reinforcing fiber, increases. The precursor gas preferably includes a carrier gas and an oxidative gas, the oxidative gas being contained in an amount of up to 25% by volume of the precursor gas. 1. A method for treating reinforcing fiber , the method comprising:(a) transporting a precursor gas comprising a carrier gas and an oxidative gas comprising up to 25% by volume of the precursor gas to an atmospheric plasma-generating discharge within an atmospheric plasma generator to generate a reactive species flow, the reactive species flow comprising reactive oxygenated species produced from the oxidative gas; and(b) exposing an untreated reinforcing fiber to the reactive species flow for a treatment time sufficient to functionalize the reinforcing fiber with oxygen such that at least one of a composite matrix interfacial adhesion of the treated reinforcing fiber or a composite matrix interfacial strength of the treated reinforcing fiber, increases.2. The method of claim 1 , wherein the untreated fiber has a sizing material on at least a portion of an exterior surface of the untreated fiber claim 1 , and further wherein the treated fiber is substantially free of the sizing material.3. The method of claim 1 , wherein exposing the untreated reinforcing fiber to the reactive species flow further comprises maintaining the reinforcing fiber at a distance from the atmospheric plasma-generating discharge so that the reinforcing ...

Method For Improving Adhesion Between A Reinforcement Element And An Elastomer Matrix Material

The invention relates to a method for improving adhesion between a reinforcement element that comprises textile fibers or textile filaments and an elastomer matrix material, in particular uncured rubber, the reinforcement element being provided with a sol-gel coating and the sol-gel coated reinforcement element being exposed to the action of a plasma, in particular a low-pressure plasma. 113.-. (canceled)15. The method according to claim 14 , wherein the reinforcing element comprises textile fibers.16. The method according to claim 14 , wherein the reinforcing element comprises textile filaments.17. The method according to claim 14 , wherein the elastomeric matrix material is rubber.18. The method according to claim 14 , wherein the plasma action is provided by a low-pressure plasma.19. The method according to claim 14 , wherein the sol-gel coating provides a solid coating claim 14 , and wherein the sol-gel coating is from 0.02 to 5 percent based on weight of the reinforcing element.20. The method according to claim 19 , wherein the sol-gel coating is from 1 to 2.5 percent based on weight of the reinforcing element.21. The method according to claim 14 , wherein the reinforcing element is a textile fiber element comprising polyamide claim 14 , polyester claim 14 , aromatic polyester claim 14 , aromatic polyamide claim 14 , polyvinyl alcohol claim 14 , polyetheretherketones claim 14 , polyethylene claim 14 , polypropylene claim 14 , polyethylene terephthalate claim 14 , cotton claim 14 , cellulose claim 14 , carbon fibers claim 14 , glass fibers and/or hybrid cord.22. The method according to claim 14 , wherein the applying a sol-gel coating to the reinforcing element takes place before the exposing the sol-gel-coated reinforcing element to the plasma action.23. The method according to claim 14 , wherein the applying a sol-gel coating to the reinforcing element takes place at the same time as the exposing the sol-gel-coated reinforcing element to the plasma action.24. ...

TRANSMISSION BELT

Disclosed is a power transmission belt having a belt body made of rubber, and a cord embedded in the belt body so as to form a helical pattern having a pitch in a belt width direction. The cord is coated with an adhesion layer formed by an adhesion treatment and containing a rubber component, and the adhesion layer is in contact with a rubber composition containing cellulose-based fine fibers. 1. A power transmission belt having a belt body made of rubber , and a cord embedded in the belt body so as to form a helical pattern having a pitch in a belt width direction ,the cord is coated with an adhesion layer formed by an adhesion treatment and containing a rubber component, and the adhesion layer is in contact with a rubber composition containing cellulose-based fine fibers.2. The power transmission belt of claim 1 , whereina range of distribution of fiber diameters of the cellulose-based fine fibers includes 50 to 500 nm.3. The power transmission belt of claim 1 , whereinthe cellulose-based fine fibers have an average fiber diameter of 10 to 100 nm.4. The power transmission belt of claim 1 , whereinthe cellulose-based fine fibers are formed by a mechanically-defibrating means.5. The power transmission belt of claim 1 , whereinthe cellulose-based fine fibers are not hydrophobically treated.6. The power transmission belt of claim 1 , whereina content of the cellulose-based fine fibers in the rubber composition is 1 to 30 parts by mass with respect to 100 parts by mass of a rubber component of the rubber composition.7. The power transmission belt of claim 1 , whereinthe cellulose-based fine fibers contained in the rubber composition are not oriented.8. The power transmission belt of claim 1 , whereinthe rubber composition containing the cellulose-based fine fibers does not contain short fibers having a fiber diameter of 10 μm or more.9. The power transmission belt of claim 1 , whereinthe adhesion layer is an RFL adhesion layer formed by an RFL adhesion treatment ...

HIGH-CARBON RECOVERED PAPER AND PLASTIC MATERIALS WITH REDUCED ENDOTOXIN LEVELS

Provided herein are composite materials comprising at least 70 wt. % thermally consolidated recovered paper and plastic fragments and less than 5,000 ng water-soluble endotoxin per gram of composite materials, as well as methods of preparing said composite materials and methods of sanitizing recovered waste materials.

MATRIX-BONDING ABRASION RESISTANT CNTs (MBARCs) AND EMPLOYING SAME IN FIBER REINFORCED POLYMER COMPOSITES

A process of providing matrix-bonding abrasion resistant CNTs (MBARCs) includes reacting functionalized carbon nanotubes (f-CNTs) and Janus particles, wherein each of the Janus particles is a silica particle having a surface with a first portion containing a CNT-bonding functionality and a second portion containing a matrix-bonding functionality. The CNT-bonding functionality may include, for example, one or more hydroxyl groups. The matrix-bonding functionality may be, for example, selected from a group consisting of vinyl functionalities, amine functionalities, epoxy functionalities, allyl functionalities, acrylate functionalities, sulfur functionalities, isocyanate functionalities, halogen functionalities, and combinations thereof. In some embodiments, the MBARCs are processed to produce fibers that, in turn, may be blended into a polymeric resin to produce a fiber reinforced polymer composite. 1. A method , comprising:providing a plurality of carbon nanotubes (CNTs);functionalizing the plurality of CNTs to provide a plurality of functionalized CNTs;providing a plurality of Janus particles, wherein each of the plurality of Janus particles is a silica particle having a surface with a first portion containing a CNT-bonding functionality and a second portion containing a matrix-bonding functionality;reacting the plurality of functionalized CNTs and the plurality of Janus particles to produce a plurality of matrix-bonding abrasion resistant CNTs (MBARCs).2. The method as recited in claim 1 , further comprising:processing the plurality of MBARCs to produce at least one fiber.3. The method as recited in claim 2 , further comprising:blending the at least one fiber into a polymeric resin to produce a fiber reinforced polymer composite, wherein the matrix-bonding functionality is tailored for blending and bonding into a polymer matrix produced by the polymeric resin.4. The method as recited in claim 1 , wherein the silica particle is a silica nanoparticle.5. The method as ...

REINFORCED POLYESTER STRUCTURAL COMPONENTS

An article of manufacture comprising a polyester composition, the article comprising, as measured by differential scanning calorimetry with a heating rate of 20 C per minute on first heating according to ASTM D3418, at least two different crystalline melting temperatures, wherein a first crystalline melting temperature and a second crystalline melting temperature are each independently 200-290 C; and a first heat of fusion and a second heat of fusion that are each independently at least 3 J/g, preferably wherein a ratio of the first heat of fusion to the second heat of fusion is 1:5-5:1, wherein the polyester composition comprises a first polyester having a phosphorous content of greater than or equal to 20 ppm, a second polyester, and 5-50 weight percent of a plurality of fibers, based on the total weight of the polyester composition, wherein the plurality of fibers have a diameter of 5-25 micrometers. 1. An article of manufacture comprising a polyester composition , the article comprising , as measured by differential scanning calorimetry with a heating rate of 20° C. per minute on first heating according to ASTM D3418 ,at least two different crystalline melting temperatures, wherein a first crystalline melting temperature and a second crystalline melting temperature are each independently 200-290° C.; anda first heat of fusion and a second heat of fusion that are each independently at least 3 J/g, a first polyester having a phosphorous content of greater than or equal to 20 ppm by weight, based on the total weight of the polyester composition,', 'a second polyester, and', '5 to 50 weight percent of a plurality of fibers, based on the total weight of the polyester composition, wherein the plurality of fibers have a diameter of 5 of 25 micrometers., 'wherein the polyester composition comprises'}2. The article of claim 1 , further comprising claim 1 , as measured by differential scanning calorimetry with a cooling rate of 20° C. per minute on first cooling according ...

Silica and Silicate Blended Fiber Polymer Composite

The claimed material relates to a mixed silica and silicate fiber and polymer composite having enhanced modulus, viscoelastic and rheological properties. 1. A thermoplastic composite comprising about 90 to 10 vol. % of a discontinuous fiber phase dispersed in about 10 to 90 vol. % of a continuous polymer phase:{'sub': '3', '(a) the discontinuous phase comprising a mixed fiber comprising up to 95 wt. %, the mixed fiber comprising about 8 to 50 wt. % of a CaSiOfiber, and about 45 to 87 wt. % of a silica fiber having a length greater than about 1 mm, a diameter greater than about 0.8 microns and an aspect ratio greater than about 100, the silicate fiber having a length greater than about 10 microns, a diameter greater than about 3 microns and an aspect ratio greater than about 12:1, the mixed fibers having about 0.1 to 5 wt. % of an exterior coating comprising an organometallic interfacial modifier, the wt. % based on the discontinuous phase; and'}(b) the continuous polymer phase comprising a vinyl chloride polymer;{'sup': −1', '−5', '−1, 'Wherein the composite has a notched IZOD impact resistance of about 0.4 to 3.0 ft-lb-in(ASTM D256), a COTE of about less than 2×10in·in·° F. (ASTM 696), a tensile modulus (ASTM D638) of greater than 700,000 psi at 72° F., a flexural modulus (ASTM D790) of greater than 700,000 psi at 72° F., a flexural strength (ASTM D790) of greater than 2,500 psi at 72° F., a tensile strength (ASTM D638) of greater than 2,000 psi at 72° F.'}2. The composite of wherein the silicate fiber comprises a wollastonite fiber.3. The composite of comprising about 15 to 50 vol. % discontinuous glass fiber phase and about 50 to 85 vol. % continuous polymer phase.4. The composite of wherein the polymer comprises a polyvinylchloride homopolymer.5. The composite of wherein the polymer K value is about 35-80 (ISO 1628-2).6. The composite of wherein the about 0.1 to 3 wt.-% of an interfacial modifier.7. The composite of wherein the organometallic interfacial ...

METHOD FOR PRODUCING FIBER FOR REINFORCING RUBBER

A method for producing a fiber for reinforcing rubber, comprising applying an adhesion treatment liquid containing a thermoplastic elastomer, a blocked polyisocyanate, and a rubber latex to a fiber cord to obtain a fiber for reinforcing rubber, wherein the thermoplastic elastomer is incorporated in the form of a water dispersion into the adhesion treatment liquid, wherein the thermoplastic elastomer particles in the water dispersion have an average particle diameter of 0.01 to 1.0 μm. 1. A method for producing a fiber for reinforcing rubber , comprising applying an adhesion treatment liquid containing a thermoplastic elastomer , a blocked polyisocyanate , and a rubber latex to a fiber cord to obtain a fiber for reinforcing rubber , wherein the thermoplastic elastomer is incorporated in the form of a water dispersion into the adhesion treatment liquid , wherein the thermoplastic elastomer particles in the water dispersion have an average particle diameter of 0.01 to 1.0 μM.2. The method for producing a fiber for reinforcing rubber according to claim 1 , wherein the water dispersion has a pH of 6 to 8 and a viscosity of 100 to 800 MPa·s (20° C.).3. The method for producing a fiber for reinforcing rubber according to claim 1 , wherein the thermoplastic elastomer and the rubber latex are incorporated in the form of their respective water dispersions into the adhesion treatment liquid claim 1 , wherein the average particle diameter of the thermoplastic elastomer particles in the water dispersion is equivalent to the average particle diameter of the rubber latex particles in the water dispersion.4. The method for producing a fiber for reinforcing rubber according to claim 1 , wherein the thermoplastic elastomer is a copolymer of polyurethane and polybutadiene.5. The method for producing a fiber for reinforcing rubber according to claim 2 , wherein the thermoplastic elastomer and the rubber latex are incorporated in the form of their respective water dispersions into the ...

METHOD FOR PRODUCING FIBER-REINFORCED RESIN COMPOSITE MATERIAL

A method for producing a fiber-reinforced resin composite material includes a step of curing a composition for producing a fiber-reinforced resin composite material, which includes a reinforcing fiber material and a resin composition including a radical reactive resin having at least one polymerizable unsaturated double bond, by irradiating the composition with ionizing radiation. 1. A method for producing a fiber-reinforced resin composite material , the method comprising a step of curing a composition for producing a fiber-reinforced resin composite material , which includes a reinforcing fiber material and a resin composition including a radical reactive resin having at least one polymerizable unsaturated double bond , by irradiating the composition with ionizing radiation.2. The method for producing a fiber-reinforced resin composite material according to claim 1 , wherein the total absorbed dose of the ionizing radiation for the composition for producing a fiber-reinforced resin composite material is 10 kGy to 500 kGy. The present invention relates to a method for producing a fiber-reinforced resin composite material.Fiber-reinforced resin composite materials, in which resin materials have been reinforced with reinforcing fiber materials such as carbon fibers or glass fibers, are generally characterized by having excellent strength and rigidity. Such fiber-reinforced, resin composite materials are widely used in various applications ranging from, for example, structural materials for aircrafts to automotive parts and sports applications such as rackets and golf shafts, by utilizing lightweightness of the materials.As a fiber-reinforced resin composite material, for example, Patent Literature 1 described below suggests a carbon fiber-reinforced resin composite material produced by curing a composition that includes an epoxy group-containing vinyl ester resin having epoxy groups and ethylenically unsaturated groups at predetermined proportions in one molecule, a ...

INSERTION OF CATALYST INTO DRY CARBON FIBERS PRIOR TO RESIN IMPREGNATION

Systems and methods are provided for fabrication of enhanced carbon fiber laminates that utilize encapsulated catalyst. One embodiment is a method that includes acquiring a batch of dry fibers, and acquiring a batch of catalyst capsules that each comprise catalyst that accelerates polymerization of monomers of a resin, and a shell that encapsulates the catalyst and liquefies at a curing temperature. The method further includes interspersing the catalyst capsules among the dry fibers, and impregnating the fibers with the resin after interspersing the catalyst capsules with the fibers. 1. A preform comprising:dry carbon fibers; andcatalyst capsules that are interspersed among the dry carbon fibers and bonded with the dry carbon fibers, each catalyst capsule comprising catalyst that accelerates polymerization of resin monomers.2. The preform of wherein:a volume ratio of dry carbon fibers to catalyst capsules is between ten to one and two to one.3. The preform of wherein:the volume ratio of dry carbon fibers to catalyst capsules is five to one.4. The preform of wherein:the catalyst capsules are spherical.5. The preform of wherein:the dry carbon fibers are cylindrical.6. The preform of wherein:the catalyst capsules have a diameter one fifth a diameter of the dry carbon fibers.7. The preform of wherein:multiple catalyst capsules attach to each dry carbon fiber along a circumference of the dry carbon fiber.8. The preform of wherein:the catalyst capsules are cylindrical.9. The preform of wherein:the dry carbon fibers are cylindrical.10. The preform of wherein:the catalyst capsules have a diameter two fifths a diameter of the dry carbon fibers.11. The preform of further comprising:a shell that liquefies at a curing temperature, wherein the catalyst is bound by the shell.12. The preform of further comprising:the shell encapsulates a pocket of gas.13. The preform of wherein:the catalyst capsules are bound to the dry carbon fibers via static electricity.14. The preform of ...

CARBON FIBER AND METHOD OF MANUFACTURING SAME

By sequentially performing: a step (I) of dissolving fullerene Cin an organic solvent to prepare a fullerene solution; a step (II) of immersing a material carbon fiber in the fullerene solution; and a step (III) of extracting the carbon fiber from the fullerene solution and drying the extracted carbon fiber, a carbon fiber on which fullerene Cadsorbs is obtained. 1. A carbon fiber on which fullerene Cadsorbs.2. The carbon fiber according to claim 1 , wherein the fullerene Cadsorbs by 0.001 parts by mass to 1 part by mass per 1000 parts by mass of the carbon fiber.3. A method of manufacturing a carbon fiber on which fullerene Cadsorbs claim 1 , the method comprising sequentially performing:{'sub': '70', 'dissolving fullerene Cin an organic solvent to prepare a fullerene solution;'}immersing a material carbon fiber in the fullerene solution; andextracting the carbon fiber from the fullerene solution and drying the extracted carbon fiber.4. The method of manufacturing the carbon fiber according to claim 3 , wherein a concentration of the fullerene Cin the solution is 1 ppm by mass to 1000 ppm by mass.5. The method of manufacturing the carbon fiber according to claim 3 , wherein the organic solvent is an aromatic hydrocarbon or an alkyl halide.6. The method of manufacturing the carbon fiber according to claim 3 , wherein the material carbon fiber is a polyacrylonitrile-based carbon fiber.7. The method of manufacturing the carbon fiber according to claim 3 , wherein a time of immersing the material carbon fiber is 5 seconds to 24 hours.8. The method of manufacturing the carbon fiber according to claim 3 , wherein a temperature of the solution during immersion is 10° C. to 80° C. The present invention relates to a carbon fiber and a method of manufacturing the same.Non-patent Document 1 discloses immersing a carbon fiber in a toluene solution of fullerene Cand thereafter drying it to obtain a carbon fiber with fullerene Cattached to the surface.Patent Document 1 discloses ...

CARBON FIBER AND METHOD OF MANUFACTURING SAME

A carbon fiber is obtained by sequentially performing: a step (I) of dissolving a fullerene mixture including fullerenes Cand Cin an organic solvent to prepare a fullerene solution; a step (II) of immersing a material carbon fiber in the fullerene solution; and a step (III) of extracting the carbon fiber from the fullerene solution and drying the extracted carbon fiber. 1. A carbon fiber on which fullerenes Cand Cadsorb.2. The carbon fiber according to claim 1 , wherein the fullerenes Cand Cadsorb claim 1 , as a total amount claim 1 , by 0.001 parts by mass to 1 part by mass per 1000 parts by mass of the carbon fiber.3. A method of manufacturing a carbon fiber on which fullerenes Cand Cadsorb claim 1 , the method comprising sequentially performing:{'sub': 60', '70, 'dissolving a fullerene mixture including fullerenes Cand Cin an organic solvent to prepare a fullerene solution;'}immersing a material carbon fiber in the fullerene solution; andextracting the carbon fiber from the fullerene solution and drying the extracted carbon fiber.4. The method of manufacturing the carbon fiber according to claim 3 , wherein the fullerene mixture is a mixture containing 50% by mass to 90% by mass of Cand 10% by mass to 50% by mass of C.5. The method of manufacturing the carbon fiber according to claim 3 , wherein a total concentration of the fullerenes Cand Cin the fullerene solution is 1 ppm by mass to 1000 ppm by mass.6. The method of manufacturing the carbon fiber according to claim 3 , wherein the organic solvent is an alkyl halide.7. The method of manufacturing the carbon fiber according to claim 3 , wherein the material carbon fiber is a polyacrylonitrile-based carbon fiber.8. The method of manufacturing the carbon fiber according to claim 3 , a time of immersing the material carbon fiber is 5 seconds to 24 hours.9. The method of manufacturing the carbon fiber according to claim 3 , wherein a temperature of the solution during immersion is 10° C. to 60° C. The present ...

PREPREG, FIBER-REINFORCED COMPOSITE MATERIAL AND SURFACE-MODIFIED REINFORCING FIBERS

The present invention provides a prepreg which is composed of at least a matrix resin and reinforcing fibers, and which is characterized in that: conductive parts are formed on one surface or both surfaces of a fiber layer that is formed of the reinforcing fibers; and the volume resistivity ρ (Ωcm) of the fiber layer in the thickness direction, the thickness t (cm) of the fiber layer and the average interval L (cm) between the conductive parts arranged on the prepreg surface satisfy formula (1). 1. A prepreg comprising: at least reinforcing fibers; and a matrix resin ,wherein conductive parts are formed on one surface or both surfaces of a fiber layer made of the reinforcing fibers, and {'br': None, 'i': t/ρ×', '/L×, '1100≥0.5 \u2003\u2003Equation (1).'}, 'a volume resistivity ρ (Ωcm) of the fiber layer in a thickness direction, a thickness t (cm) of the fiber layer and an average interval L (cm) of the conductive parts disposed on the surface of the prepreg satisfy the following Equation (1)2. The prepreg according to claim 1 , wherein the volume resistivity ρ is 50Ωcm or less.3. The prepreg according to claim 1 , wherein the average interval L is 0.025 cm or more.4. The prepreg according to claim 1 , wherein the reinforcing fiber is a reinforcing fiber in which a conductive material B is adhered to a fiber surface.5. The prepreg according to claim 1 , wherein the fiber layer is a fiber layer composed of at least the reinforcing fiber and the conductive material B existing between single fibers of the reinforcing fiber.6. A fiber-reinforced composite material comprising: at least reinforcing fibers and a matrix resin claim 1 ,wherein conductive parts are formed between layers formed by laminating fiber layers made of the reinforcing fibers, and {'br': None, 'i': t/ρ×', '/L×, '1100≥0.5 \u2003\u2003Equation (1).'}, 'a volume resistivity ρ (Ωcm) of the fiber layer in a thickness direction, a thickness t (cm) of the fiber layer and an average interval L (cm) of the ...

FIBROUS MATERIAL IMPREGNATED WITH THERMOPLASTIC POLYMER OF OPTIMUM MOLECULAR MASS AND VISCOSITY AND METHOD FOR THE PRODUCTION THEREOF

The present invention concerns an impregnated fibrous material comprising at least one continuous-fiber fibrous material in the form of a roving or a plurality of parallel rovings and at least one thermoplastic polymer matrix, characterized in that said at least one thermoplastic polymer is an amorphous or semi-crystalline polymer having a glass transition temperature such that Tg≥40° C., especially Tg≥100° C., in particular ≥120° C., the fiber content of said impregnated fibrous material being from 45 to 65% by volume, preferably from 50 to 60% by volume, especially from 54 to 60% by volume, the number-average molecular mass Mn of said thermoplastic polymer being from 11,000 to 25,000 g/mol, the melt viscosity of said thermoplastic polymer being from 80 to 1500 Pa·s, as measured by plane-plane rheology at 1 Hz and 2% deformation, at a temperature of Tg+220° C. 1. An impregnated fibrous material comprising at least one continuous-fiber fibrous material in the form of a roving or several parallel rovings and at least one thermoplastic polymer matrix , wherein a thermoplastic polymer of said at least one thermoplastic polymer matrix is an amorphous or semi-crystalline polymer having a glass transition temperature such that Tg≥40° C. , as measured using a differential scanning calorimeter (DSC) , after a second heating pass , according to standard ISO 11357-2:2013 , with a heating and cooling speed of 20° C./min ,the fiber content in said impregnated fibrous material being from 45 to 65% by volume, the number-average molecular mass Mn of said thermoplastic polymer being from 11,000 to 25,000 g/mol, the melt viscosity of said thermoplastic polymer being from 80 to 1500 Pa·s, as measured by plane/plane rheology at 1 Hz and 2% deformation, at a temperature of Tg+220° C.2. The impregnated fibrous material according to claim 1 , wherein the polymolecularity index Ip of said thermoplastic polymer is from 2 to 6.3. The impregnated fibrous material according to claim 1 , ...

SOLUTION BASED POLYMER NANOFILLER-COMPOSITES SYNTHESIS

A solution based polymer nanofiller composite processing method to improve mechanical, electrical, thermal and/or chemical properties. The solution based synthesis method may include the steps of surface functionalizing carbon nanomaterials and dissolving a polymer in a solvent. The functionalized carbon nanomaterials and dissolved polymer may be mixed until the mixture is homogenous. The mixture may be cured to form the polymer carbon nano-composite material, which provides significant improvements in modulus, hardness, strength, fracture toughness, wear, fatigue, creep, and damping performance. 1. A polymer nanofiller composite comprising:a polymer; andcarbon nanomaterials dispersed within the polymer, wherein the carbon nanomaterials are dispersed within the polymer utilizing a solution based approach, with nanofillers uniformly distributed in the polymeric matrices.2. The composite of claim 1 , wherein the polymer nanofiller composite comprises equal to or between 1-30 wt % of the carbon nanomaterials and equal to or between 70-99 wt % of the polymer.3. The composite of claim 1 , wherein the polymer nanofiller composite demonstrates a hardness of 65 or greater (Hardness A claim 1 , pts).4. The composite of claim 1 , wherein the polymer nanofiller composite demonstrates a modulus at 100% strain of 600 psi or better.5. The composite of claim 1 , wherein the carbon nanomaterials are carbon nanotubes (CNTs) claim 1 , carbon nanofibers (CNFs) claim 1 , or buckyballs.6. The composite of claim 5 , wherein the carbon nanomaterials are functionalized with an agent that improves chemical bonding between the carbon nanomaterials and a polymer.7. The composite of claim 6 , further comprising a vulcanizing agent.8. The composite of claim 10 , wherein the vulcanizing agent is sulfur claim 10 , peroxides claim 10 , urethane crosslinkers claim 10 , metallic oxides claim 10 , acetoxysilane claim 10 , curatives claim 10 , and/or accelerators.9. The composite of claim 1 , wherein ...

Lightning strike protection for composite components

Systems and methods for lightning strike materials are disclosed. The material may include a carbon fiber tow. Carbon nanotubes may be grown on carbon fibers within the carbon fiber tow. The carbon nanotubes may cause the carbon fibers to separate, decreasing a carbon tow fiber volume fraction of the tow. The growth of the carbon nanotubes may be controlled to select a tow fiber volume fraction of the tow. The lightning strike material may transmit electricity to decrease damage to the composite structure in case of a lightning strike.

PRESSURE SENSITIVE ADHESIVE ASSEMBLY SUITABLE FOR BONDING TO UNEVEN SUBSTRATES

The present disclosure relates to a pressure sensitive adhesive assembly suitable for bonding to a substrate provided with an uneven surface, wherein the pressure sensitive adhesive (PSA) assembly comprises a polymeric foam layer comprising a polymeric base material, and having a complex viscosity comprised between 2,000 Pa·s to 80,000 Pa·s, when measured at 120° C. according to the test method described in the experimental section. 1. A pressure sensitive adhesive (PSA) assembly suitable for bonding to a substrate provided with an uneven surface , wherein the pressure sensitive adhesive (PSA) assembly comprises a polymeric foam layer comprising a polymeric base material , and having a complex viscosity comprised between 2 ,000 Pa·s to 80 ,000 Pa·s , when measured at 120° C. according to the test method described in the experimental section.2. A pressure sensitive adhesive assembly according to claim 1 , which has a complex viscosity comprised between 2 claim 1 ,500 Pa·s to 50 claim 1 ,000 when measured at 120° C. according to the test method described in the experimental section.3. A pressure sensitive adhesive assembly according to claim 1 , wherein the polymeric foam layer has a degree of conversion of at least 90% when determined according to the test method described in the experimental section.4. A pressure sensitive adhesive assembly according to claim 1 , wherein the uneven surface is provided with at least one structure selected from the group consisting of cavities claim 1 , holes claim 1 , apertures claim 1 , orifices claim 1 , pits claim 1 , openings claim 1 , gaps claim 1 , troughs claim 1 , edges claim 1 , depressions claim 1 , and any combinations thereof.5. A pressure sensitive adhesive assembly according to claim 4 , wherein the structure is selected from the group of spot welds claim 4 , laser beam welds claim 4 , rivets claim 4 , punch rivets claim 4 , clinch points claim 4 , round joints claim 4 , point joints claim 4 , and any combinations ...

Hybrid component part comprising a local stiffening composed of a two-stage-crosslinked polyurethane-based fibre composite material

The invention relates to a hybrid component part comprising a local stiffening made of a two-stage-crosslinked polyurethane-based fibre composite material, more particularly to the production of such a hybrid component part. Said invention has for its object to specify a technology which makes it possible in cost-effective fashion to effect local stiffening of metal parts with a fibre composite material in order thus to obtain a hybrid component part. It is a fundamental concept of the process according to the present invention to use a particular polyurethane formulation which in a first crosslinking reaction can be converted into a thermoplastic polymer and later in a second crosslinking reaction is fully crosslinked to afford a thermoset matrix material. The thermoplastic polymer is characterized by a good adhesion to metal surfaces. The metal can be subjected to further forming with the attached thermoplastic material. The polyurethane is subsequently thermosettingly cured and achieves its final stiffness.

CARBON FIBER COMPOSITE MATERIAL

The present invention relates to a carbon fiber composite material containing carbon fibers coated with amorphous carbon, and a matrix resin. 15-. (canceled)6. A method for producing the carbon fiber composite material comprising carbon fibers coated with amorphous carbon , and a matrix resin , the method comprising:impregnating carbon fibers with a naphthoxazine resin solution, or spraying a naphthoxazine resin solution to surfaces of carbon fibers, followed by heating at 200° C. or below, thereby carbonizing the naphthoxazine resin in the solution, to obtain carbon fibers coated with a carbonized naphthoxazine resin as amorphous carbon; andmixing the carbon fibers coated with amorphous carbon with polypropylene as a matrix resin.71. The method according to claim , wherein the naphthoxazine resin is produced by reacting dihydroxynaphthalene , formaldehyde and an amine , wherein the dihydroxynaphthalene is selected from the group consisting of 1 ,5-dihydroxynaphthalene and 2 ,6-dihydroxynaphthalene.82. The method according to claim , wherein the amine is selected from the group consisting of methylamine , ethylamine , and propyl amine.92. The method according to claim , wherein an amount of the aliphatic amine is 0.8 to 1.2 moles and an amount of the formaldehyde is 1.6 to 2.4 moles , per 1 mole of dihydroxynaphthalene. The present invention relates to a carbon fiber composite material having high-strength. Priority is claimed on Japanese Patent Application No. 2011-179628, filed on Aug. 19, 2011, and the content of which is incorporated herein by reference.Carbon fiber composite materials in which matrix resins such as thermoset resins, thermoplastic resins and the like are reinforced with carbon fibers have excellent modulus of tensile elasticity and tensile strength, and thus they have been utilized in sports, leisure, aerospace, and in addition, in blades for wind power generation and the like.Mechanical characteristics, such as strength, modulus of elasticity ...

SYSTEM FOR PRODUCING A FULLY IMPREGNATED THERMOPLASTIC PREPREG

Fiber-containing polymethyl methacrylate (PMMA) prepregs are described that include a first and second plurality of fibers. The second plurality of fibers is made from a different material than the first plurality of fibers. The PMMA prepregs also contain a polymerized resin that includes polymethyl methacrylate that has been formed from a reactive resin composition that includes methyl methacrylate. Methods of making fiber-containing PMMA prepregs are also described. 1. A fiber-containing polymethyl methacrylate prepreg comprising:a first plurality of fibers;a second plurality of fibers made from a different material than the first plurality of fibers; anda polymerized resin comprising the polymethyl methacrylate, wherein the polymerized resin is formed from a reactive resin composition comprising methyl methacrylate.2. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein at least one of the first plurality of fibers and the second plurality of fibers are reactive fibers with a reactive agent present on the surface of the reactive fibers.3. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein the first plurality of fibers and the second plurality of fibers are formed into a fiber mat.4. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein the first plurality of fibers and the second plurality of fibers are formed into one or more layers of fiber mat.5. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein the first plurality of fibers are formed into a first fiber mat and the second plurality of fibers are formed into a second fiber mat.6. The fiber-containing polymethyl methacrylate prepreg of claim 5 , wherein the prepreg comprises a stack of layers of the first fiber mat and the second fiber mat on top of each other.7. The fiber-containing polymethyl methacrylate prepreg of claim 1 , wherein the first plurality of fibers comprises fibers selected from glass fibers claim 1 , ...

METHODS OF USING A PHENOLIC FATTY ACID COMPOUND ON A SYNTHETIC FABRIC MATERIAL

This invention relates to a process for making phenolic fatty acid compounds having a reduced phenolic ester content. The invention also relates to method for chemically bonding a phenolic resin with a non-phenolic polymer (e.g., a synthetic fabric). The method comprises contacting a phenolic fatty acid compound with a non-phenolic polymer to introduce a hydroxy phenyl functional group into the non-phenolic polymer; and reacting the hydroxy phenyl functional group contained in the non-phenolic polymer with a phenolic resin or a phenolic crosslinker composition capable of forming a phenolic resin, to chemically bond the phenolic resin with the non-phenolic polymer. The invention is particularly useful for making a synthetic fabric-reinforced article, such as synthetic fabric-reinforced rubber article, circuit board substrate, or fiberglass. 1. A method for chemically bonding a phenolic resin with a synthetic fabric material , comprising:contacting a phenolic fatty acid compound with a synthetic fabric material to introduce a hydroxy phenyl functional group into the synthetic fabric material; andreacting the hydroxy phenyl functional group contained in the synthetic fabric material with a phenolic resin or a phenolic crosslinker composition capable of forming a phenolic resin, to chemically bond the phenolic resin with the synthetic fabric material.2. The method of claim 1 , wherein claim 1 , without the presence of the phenolic fatty acid compound claim 1 , the synthetic fabric material does not react claim 1 , or reacts minimally claim 1 , with the phenolic resin.3. The method of claim 1 , wherein the contacting step comprises:liquefying the synthetic fabric material into a molten state; andmixing the molten synthetic fabric material with the phenolic fatty acid compound.4. The method of claim 1 , wherein the contacting step comprises chemically reacting a carboxylic acid-reactive functional group of the synthetic fabric material with the carboxylic acid group of ...

Fiber-Reinforced Resin Composites and Methods of Making the Same

A fiber-reinforced resin composite and method of making the same. The fiber-reinforced resin composite includes a polymeric resin matrix and a plurality of fibers coated with a first distortional polymeric resin. The polymeric resin matrix has a first von Mises strain. The first distortional polymeric resin has a second von Mises strain in a range of approximately 0.25 to approximately 0.45. The plurality of fibers coated with the first distortional polymeric resin are disposed in the polymeric resin matrix. The second von Mises strain is greater than the first von Mises strain.

HIGH-PRESSURE GAS STORAGE CONTAINER AND METHOD FOR PRODUCING HIGH-PRESSURE GAS STORAGE CONTAINER

A high-pressure gas storage container includes a liner and a reinforcing layer. The liner houses a high-pressure gas. The reinforcing layer is formed by winding a plurality of strip-shaped reinforcing members around an outer perimeter surface of the liner. The reinforcing members are made of a plurality of reinforcing fibers that are impregnated with a resin. At least a portion of the reinforcing fibers is irradiated with plasma. 1. A high-pressure gas storage container comprising:a liner for housing high-pressure gas; anda reinforcing layer including a plurality of strip-shaped reinforcing members wound around an outer perimeter surface of the liner;the reinforcing members including a plurality of reinforcing fibers that are impregnated with resin,the liner comprising a body portion having in a center with a tubular shape extending in an axial direction, a pair of mirror portions provided on opposite sides of the body portion with respect the axial direction and curved to taper outwardly in the axial direction, and a pair of shoulder portions located at boundaries between an inner perimeter surface of the body portion and inner perimeter surfaces of the mirror portions, andat least the reinforcing fibers of the reinforcing members located at the shoulder portions of the body portion having been irradiated with plasma.2. The high-pressure gas storage container according to claim 1 , whereinthe reinforcing layer includes a hoop layer having one of the reinforcing members wound around the body portion along the circumferential direction, and a helical layer having one of the reinforcing members wound around the body portion and the mirror portions in a spiral shape, andthe reinforcing fibers that constitute the reinforcing member that is wound in the helical layer having been irradiated with the plasma.3. The high-pressure gas storage container according to claim 2 , whereinthe reinforcing fibers that constitute the reinforcing member that is wound in the hoop layer ...

POLYMER NANOPARTICLES FOR CONTROLLING PERMEABILITY AND FIBER VOLUME FRACTION IN COMPOSITES

A fiber tow may include a plurality of reinforcing filaments each having a filament cross-sectional width. At least a portion of the polymer nanoparticles may be coupled to at least one of the reinforcing filaments and/or to other polymer nanoparticles. The polymer nanoparticles may have a particle cross-sectional width that is less than the reinforcing filament cross-sectional width. The polymer nanoparticles may provide a local filament spacing between the reinforcing filaments to reduce or avoid direct contact between reinforcing filaments, to allow for resin flow between the filaments, and/or to meet fiber volume fraction requirements. 1. A fiber tow , comprising:a plurality of reinforcing filaments each having a filament cross-sectional width;a plurality of polymer nanoparticles;the polymer nanoparticles having a particle cross-sectional width that is less than the filament cross-sectional width; andat least a portion of the polymer nanoparticles are coupled to at least one of the reinforcing filaments and/or to other polymer nanoparticles.2. The fiber tow of claim 1 , wherein:the plurality of reinforcing filaments include a first filament and a second filament;the plurality of polymer nanoparticles include a first polymer nanoparticle coupled to the first filament and a second polymer nanoparticle coupled to the second filament; andthe first polymer nanoparticle contacting the second filament and/or the second polymer nanoparticle.3. The fiber tow of claim 1 , wherein:the polymer nanoparticles have a particle cross-sectional width of 10-200 nanometers.4. The fiber tow of claim 1 , wherein:the polymer nanoparticles are generally spherical.5. The fiber tow of claim 1 , wherein the polymer nanoparticles are comprised of at least one of the following:thermoplastic material, acrylics, fluorocarbons, polyamides, polyolefins, polyethylenes, polyesters, polycarbonates, polypropylenes, polyurethanes, polyaryletherketones, polyetherimides, polyethersulfone, polysulfone, ...

PRODUCTION METHOD FOR FIBER-REINFORCED COMPOSITE MATERIAL

A production method for a fiber-reinforced composite material comprises: a first step of stacking a prepreg including: a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and a surface layer provided on at least one surface of the reinforcing fiber layer and containing polyamide resin particles having an average particle size of 5 to 50 μm and a melting point of 175 to 210° C. plurally and performing heating at a temperature of 120° C. or more and less than M° C. when the melting point of the polyamide resin particles measured in the composition forming the surface layer is denoted by M° C.; and a second step of performing heating at a temperature of M° C. or more after the first step to cure the resin. 1. A production method for a fiber-reinforced composite material comprising:a first step ofstacking a prepreg including a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule and a surface layer provided on at least one surface of the reinforcing fiber layer and containing (A) a benzoxazine resin, (B) an epoxy resin, (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule, and (D) polyamide resin particles having an average particle size of 5 to 50 μm and a melting point of 175 to 210° C. plurally and{'sub': 1', '1, 'performing heating at a temperature of 120° C. or more and less than M° C. when a melting point of the polyamide resin particles measured in the composition forming the surface layer is denoted by M° C.; and'}{'sub': '1', 'a second step of performing heating at a temperature of M° C. or more after the first step to cure the resin.'}2. The production method for a fiber-reinforced composite ...

FIBROUS CELLULOSE COMPOSITE RESIN AND PRODUCTION METHOD THEREFOR, AND RESIN REINFORCING MATERIAL

A fibrous cellulose composite resin being excellent in strength, a method for producing the same, and a reinforcing material for resins capable of significantly improving resin strength are provided. The fibrous cellulose composite resin includes fibrous cellulose containing microfiber cellulose, a resin, and an acid-modified resin, wherein the microfiber cellulose has an average fiber width of 0.1 μm or larger, an average fiber length of 0.02 to 2.0 mm, and a percentage of fibrillation of 1.0% or higher, and hydroxyl groups substituted with carbamate groups, and the carbamate groups are ionically bonded to acidic groups of the acid-modified resin.

STRUCTURE

Provided is a structure having excellent flexibility represented by elastic restoring from compression or tensile elongation at break, and excellent lightness. A structure according to the present invention includes reinforced fibers, first plastic, and second plastic that exhibits rubber elasticity at room temperature, the reinforced fibers being discontinuous fibers, and the first plastic and/or the second plastic coating a crossing point between the reinforced fibers in contact with each other. 1. A structure comprising reinforced fibers , first plastic , and second plastic that exhibits rubber elasticity at room temperature ,the reinforced fibers being discontinuous fibers, andthe first plastic and/or the second plastic coating a crossing point between the reinforced fibers in contact with each other.2. The structure according to claim 1 , comprising voids and having a density of 0.01 g/cmor more and 1.3 g/cmor less.3. The structure according to claim 2 , having a volume content of the voids in a range of 10 vol % or more and 97 vol % or less.4. The structure according to claim 1 , having an elastic restoring from 50% compression of 1 MPa or more.5. The structure according to claim 1 , having a tensile elongation at break in a range of 1% or more and 20% or less.6. The structure according to claim 1 , wherein the reinforced fibers have a tensile elongation at break in a range of 1% or more and 10% or less.7. The structure according to claim 1 , wherein the reinforced fibers contain at least one selected from the group consisting of PAN-based carbon fibers claim 1 , PITCH-based carbon fibers claim 1 , glass fibers claim 1 , and aramid fibers.8. The structure according to claim 1 , wherein the first plastic and/or the second plastic coating the crossing point between the reinforced fibers has a coating thickness in a range of 1 μm or more and 15 μm or less.9. The structure according to claim 1 , wherein the second plastic has a tensile elongation at break of 200% ...

MULTIFUNCTIONAL CURING AGENTS AND THEIR USE IN IMPROVING STRENGTH OF COMPOSITES CONTAINING CARBON FIBERS EMBEDDED IN A POLYMERIC MATRIX

A functionalized carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups, at least some of which are engaged in covalent bonds with crosslinking molecules, wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated, wherein at least a portion of said crosslinking molecules are engaged, via at least two of their epoxy-reactive groups, in crosslinking bonds between at least two epoxy groups of the sizing agent. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described. 1. A composition comprising a carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups , at least some of which are engaged in covalent bonds with crosslinking molecules , wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated , wherein at least a portion of said crosslinking molecules are engaged , via at least two of their epoxy-reactive groups , in crosslinking bonds between at least two epoxy groups of the sizing agent.2. The composition of claim 1 , wherein said free functional group is an alkenyl group.3. The composition of claim 1 , wherein said free functional group is an isocyanate group.4. The composition of claim 1 , wherein a portion of said crosslinking molecules are engaged claim 1 , via less than all of their epoxy-reactive groups claim 1 , in an equivalent number of covalent bonds with said epoxy groups claim 1 , wherein said crosslinking molecule possesses at least one free epoxy-reactive group in addition to the free functional group.5. ...

COMPOSITE ARTICLE FROM REACTIVE PRECURSOR MATERIAL

A method comprises preparing or receiving a polyetherimide precursor solution including (i) a solvent comprising water, aliphatic alcohol, or a mixture thereof; (ii) an amine additive comprising a secondary or tertiary amine; and (iii) a polyetherimide precursor dissolved and dissociated in the solvent. The method further comprises at least partially coating or impregnating one or more reinforcement structures with the polyetherimide precursor solution and polymerizing the one or more polyetherimide precursor reagents to form a polyetherimide matrix such that the one or more reinforcement structures are at least partially embedded in the polyetherimide matrix to provide a composite article. 1. A method comprising: (i) a solvent comprising water, aliphatic alcohol, or a mixture thereof;', '(ii) an amine additive comprising a secondary or tertiary amine; and', '(iii) a polyetherimide precursor dissolved and dissociated in the solvent;, '(a) preparing or receiving a polyetherimide precursor solution including;'}(b) at least partially coating or impregnating one or more reinforcement structures with the polyetherimide precursor solution; and(c) polymerizing the one or more polyetherimide precursor reagents to form a polyetherimide matrix such that the one or more reinforcement structures are at least partially embedded in the polyetherimide matrix to provide a composite article.2. The method according to claim 1 , wherein the solvent of the polyetherimide precursor solution comprises at least 85 wt % water claim 1 , aliphatic alcohol claim 1 , or the mixture thereof.3. The method according to claim 1 , wherein the polyetherimide precursor solution comprises less than 15 wt % total of one or any combination of: one or more halogenated solvents claim 1 , N-methylpyrrolidone claim 1 , dimethylsulfoxide claim 1 , dimethylformamide claim 1 , sulfolane claim 1 , tetrahydrofuran claim 1 , anisole claim 1 , cyclopentanone claim 1 , cyclohexanone claim 1 , and a solvent with a ...

CARBON AEROGEL COMPOSITE PREPREG

A carbon aerogel composite is disclosed. A carbon fiber is coated with a conductive carbon aerogel. An aerospace-vehicle component, aerospace vehicle or aircraft or lighting guard can include carbon fibers coated with a conductive carbon aerogel, strands comprising carbon fiber coated with a conductive carbon aerogel, woven fabrics comprising carbon fiber coated with a conductive carbon aerogel, or nonwoven fabrics comprising carbon fiber coated with a conductive carbon aerogel. 1. A carbon fiber coated with a conductive carbon aerogel.2. The carbon fiber according to claim 1 , wherein the carbon fiber is in a strand claim 1 , a woven fabric claim 1 , or a nonwoven fabric.3. An aerospace-vehicle component comprising carbon fiber claim 1 , wherein the carbon fiber is coated with a conductive carbon aerogel.4. The aerospace-vehicle component according to claim 3 , wherein the carbon fiber is in a strand claim 3 , a woven fabric claim 3 , or a nonwoven fabric.5. The aerospace-vehicle component according to claim 4 , wherein the component consists predominantly of carbon fiber composite.6. The aerospace-vehicle component according to claim 5 , wherein carbon fibers claim 5 , strands claim 5 , woven fabrics or nonwoven fabrics are part of the carbon fiber composite.7. The aerospace-vehicle component according to claim 5 , wherein carbon fibers claim 5 , strands claim 5 , woven fabrics or nonwoven fabrics are part of the carbon fiber composite.8. The aerospace-vehicle component according to claim 3 , wherein the component consists predominantly of carbon fiber composite.9. An aerospace vehicle or aircraft comprising carbon fibers coated with a conductive carbon aerogel claim 3 , strands comprising carbon fiber coated with a conductive carbon aerogel claim 3 , woven fabrics comprising carbon fiber coated with a conductive carbon aerogel claim 3 , or nonwoven fabrics comprising carbon fiber coated with a conductive carbon aerogel.10. A lightning guard for an aerospace ...

EPOXY-AMINE ADDUCT, RESIN COMPOSITION, SIZING AGENT, CARBON FIBER COATED WITH SIZING AGENT, AND FIBER-REINFORCED COMPOSITE MATERIAL

Provided is an epoxy-amine adduct that offers high reactivity, contributes to better adhesion between a resin and a reinforcing fiber in a fiber-reinforced composite material, and can be easily blended with another component such as a resin. The epoxy-amine adduct has two or more amino groups per molecule and is obtained by a reaction of an epoxy compound (A) having two or more alicyclic epoxy groups per molecule with an amine compound (B) having two or more amino groups per molecule. The epoxy compound (A) is preferably a compound represented by Formula (a): 111-. (canceled)13. A resin composition comprising:{'claim-ref': {'@idref': 'CLM-00012', 'claim 12'}, 'the epoxy-amine adduct of ; and'}a thermoplastic resin.14. The resin composition according to claim 13 , as a resin composition for a fiber-reinforced composite material.15. A prepreg comprising:{'claim-ref': {'@idref': 'CLM-00014', 'claim 14'}, 'the resin composition of ; and'}a reinforcing fiber impregnated or coated with the resin composition.16. A fiber-reinforced composite material formed from the prepreg of .17. A sizing agent comprising the epoxy-amine adduct of .18. A sizing-agent-coated carbon fiber comprising:a carbon fiber; and{'claim-ref': {'@idref': 'CLM-00017', 'claim 17'}, 'the sizing agent of applied to the carbon fiber.'}19. A fiber-reinforced composite material comprising:{'claim-ref': {'@idref': 'CLM-00018', 'claim 18'}, 'the sizing-agent-coated carbon fiber of ; and'} a thermoplastic resin; and', 'a cured product of a curable compound., 'one selected from the group consisting of The present invention relates to an epoxy-amine adduct; a resin composition including the epoxy-amine adduct; and a fiber-reinforced composite material formed from a prepreg that is obtained by impregnating or coating a reinforcing fiber with the resin composition. The present invention further relates to a sizing agent including the epoxy-amine adduct; a sizing-agent-coated carbon fiber obtained by applying the ...

SELF-HEALING CARBON FIBER COMPOSITES

Provided is a self-healing carbon fiber composite which may include a polymer matrix, a plurality of carbon fibers dispersed within the polymer matrix, and a self-healing polymer layer bonded onto at least a portion of the carbon fibers. Also provided herein are methods of manufacturing and repairing the carbon fiber composite. 1. A self-healing carbon fiber composite comprising:a polymer matrix;a plurality of carbon fibers dispersed within the polymer matrix; anda self-healing polymer layer bonded onto at least a portion of a surface of each of the carbon fibers of the plurality, such that each of the carbon fibers is at least partially coated by a respective self-healing polymer layer, wherein each self-healing polymer layer is individually bonded to the surface of each the carbon fibers by a bond selected from the group consisting of an ionic bond, a covalent bond, and a hydrogen bond, and wherein the self-healing polymer layer is layers are present between the polymer matrix and at least a portion of the surface of the plurality of carbon fibers.2. The self-healing carbon fiber composite of claim 1 , wherein each self-healing polymer layer comprises an alkoxyamine moiety and/or a metal ligand.3. The self-healing carbon fiber composite of claim 2 , wherein the metal is zinc.4. The self-healing carbon fiber composite of claim 1 , wherein each self-healing polymer layer has a thickness of greater than or equal to about 10 nm to less than or equal to about 3000 nm.5. The self-healing carbon fiber composite of claim 1 , wherein each self-healing polymer layer has a first toughness that is less than or equal to a second toughness of the polymer matrix.6. The self-healing carbon fiber composite of claim 1 , wherein a portion of the plurality of carbon fibers each has an average diameter of greater than or equal to about 5 μm to less than or equal to about 15 μm.7. The self-healing carbon fiber composite of claim 1 , wherein the polymer matrix is formed from a resin ...

SIZING AGENT FOR REINFORCEMENT FIBER AND APPLICATIONS THEREOF

A sizing agent for matrix-resin-reinforcement fiber, a synthetic fiber strand sized therewith, and a fiber-reinforced composite material reinforced by the sized fiber strand. The sizing agent for reinforcement fiber contains a polyamide (A), a carbodiimide group-containing compound (B) and water (C), wherein the polyamide (A) has a melt viscosity ranging from 100 to 15,000 mP·s at 150° C. and the compound (B) has at least two carbodiimide groups per molecule. The polyamide (A) is preferably a water-soluble polyamide. 1. A sizing agent for reinforcement fiber comprising a polyamide (A) , a carbodiimide group-containing compound (B) and water (C);wherein the polyamide (A) has a melt viscosity ranging from 100 to 15,000 mPa·s at 150° C.; andwherein the compound (B) has at least two carbodiimide groups per molecule.2. The sizing agent as claimed in claim 1 , wherein the polyamide (A) is a water-soluble polyamide.3. The sizing agent as claimed in claim 1 , wherein the polyamide (A) is a condensation-polymerization product of an amine and a carboxylic acid and has an oxyalkylene group.4. The sizing agent as claimed in claim 1 , wherein the weight ratio of the carbodiimide group-containing compound (B) to the polyamide (A) claim 1 , B:A claim 1 , ranges from 1 to 30 wt %.5. The sizing agent as claimed in claim 1 , wherein the chemical formula weight of the carbodiimide group-containing compound (B) ranges from 300 to 600 per 1 mole of the carbodiimide group.6. A reinforcement fiber strand manufactured by applying the sizing agent for reinforcement fiber as claimed in to a base reinforcement fiber strand.7. The reinforcement fiber strand as claimed in claim 6 , wherein the base reinforcement fiber is carbon fiber.8. A fiber-reinforced composite material comprising a matrix resin and the reinforcement fiber strand as claimed in .9. The fiber-reinforced composite material as claimed in claim 8 , wherein the matrix resin is a thermoplastic resin.10. A fiber-reinforced ...

POST-HARVEST METHOD FOR NATURAL FIBER NANOPARTICLE REINFORCEMENT

A method of forming a composite material includes immersing dried plant matter into an aqueous solution containing nanoparticles and applying a magnetic field and/or an electric field to the aqueous solution. A cellular structure of the dried plant matter expands when immersed in the aqueous solution and the nanoparticles migrate into and are embedded within the expanded cellular structure of the immersed dried plant matter. The method also includes removing at least one of hemicellulose, lignin and pectins from the dried plant matter by adding a chemical additive to the aqueous solution and/or wrapping or tagging the nanoparticles with a magnetic material such as nickel. 1. A method of forming a composite material comprising:immersing dried plant matter into an aqueous solution containing nanoparticles, wherein a cellular structure of the dried plant matter expands when immersed in the aqueous solution; andapplying at least one of a magnetic field and an electric field to the aqueous solution such that the nanoparticles migrate into and are embedded within the expanded cellular structure of the immersed dried plant matter.2. The method according to further comprising adding a chemical additive to the aqueous solution claim 1 , wherein the chemical additive removes at least one of hemicellulose claim 1 , lignin and pectins from the dried plant matter.3. The method according to claim 2 , wherein the chemical additive is at least one of an alkali claim 2 , a silane claim 2 , acetylation claim 2 , benzoylation claim 2 , peroxide claim 2 , sodium chlorite claim 2 , acrylic acid claim 2 , stearic acid claim 2 , triazine claim 2 , and a fungus or enzyme.4. The method according to claim 1 , wherein the dried plant matter comprise a sheet of dried plant matter.5. The method according to claim 1 , wherein the dried plant matter comprises individual plant cells.6. The method according to claim 1 , wherein the nanoparticles are selected from the group consisting of carbon- ...

Method of manufacturing composite material having nano structure grown on carbon fiber and composite material having nano structure manufactured using the same

Provided is a composite material having a nano structure grown on a carbon fiber with a high density. A method of manufacturing a composite material includes: modifying a surface of a carbon fiber by using an electron beam; growing a zinc oxide (ZnO) nano structure on the modified surface of the carbon fiber; and transferring the carbon fiber and the zinc oxide nano structure onto a polymer resin.

Carbon fiber-reinforced molded article

There is provided a carbon fiber-reinforced molded article that avoids peeling of carbon fibers from a base material and has high strength, the carbon fiber-reinforced molded article comprising a base material and a composite material dispersed in the base material, wherein the composite material comprises carbon fibers and a structure formed on the surface of the carbon fibers and including a plurality of carbon nanotubes, the plurality of carbon nanotubes forms a network structure in which the carbon nanotubes are directly connected to one another, and the plurality of carbon nanotubes is directly attached to the surface of the carbon fibers by using a portion of the surface thereof as an attaching portion, and also is physically bound to the surface of the carbon fibers via a binding member provided on at least a portion other than the attaching portion.

ANAEROBIC COMPOSITE MATRIX RESINS

A matrix resin composition for fiber reinforced composite materials is described. The resin is thermosetting and achieves a glass transition temperature of at least 177° C. (Tg), obtained by curing under anaerobic conditions at room temperature. The matrix resin will streamline composite fabrication processes by eliminating the need for heating during the cure process. The implications of this development are significant in terms of the ease of use and elimination of procedural steps. While the resin system was developed specifically for vacuum bagging, it is expected to be viable for other composite fabrication methods including resin transfer molding (RTM) and vacuum-assisted resin transfer molding (VARTM). The resin system is viable for use with carbon fiber reinforcements to fabricate laminates at least 0.20 inches thick. The resulting laminintes have low porosity and mechanical properties equivalent to those prepared with common epoxy matrix resins. 1. An anaerobically curing resin system , comprising:a matrix resin comprising acrylate based resin materials and curing agents, wherein the curing agents comprise peroxide initiators, aromatic amine accelerators, and benzoic sulfimide, and wherein the curing agents initiate curing in anaerobic conditions at ambient temperature; anda primer, wherein the primer comprises a solvent, acrylate based resin materials, an elastomeric toughener, and a catalyst comprising a transition metal.2. The anaerobically curing resin system of claim 1 , wherein the acrylate based resin materials comprise tricyclodecane dimethanol diacrylate claim 1 , methacrylic acid claim 1 , epoxy acrylate claim 1 , tris(2-hydroxyethyl) isocyanurate triacrylate claim 1 , polybutadiene acrylonitrile dimethacrylate claim 1 , hydroxypropyl methacrylate claim 1 , and combinations thereof.3. The anaerobically curing resin system of claim 1 , wherein the peroxide initiators comprise cumene hydroperoxide claim 1 , t-butylhydroperoxide claim 1 , p-menthane ...

Anaerobic composite matrix resins

A matrix resin composition for fiber reinforced composite materials is described. The resin is thermosetting and achieves a glass transition temperature of at least 177° C. (Tg), obtained by curing at room temperature. The matrix resin will streamline composite fabrication processes by eliminating the need for heating during the cure process. The implications of this development are significant in terms of the ease of use and elimination of procedural steps. While the resin system was developed specifically for vacuum bagging, it is expected to be viable for other composite fabrication methods including resin transfer molding (RTM) and vacuum-assisted resin transfer molding (VARTM). The resin system is viable for use with carbon fiber reinforcements to fabricate laminates at least 0.20 inches thick. The resulting laminates have low porosity and mechanical properties equivalent to those prepared with common epoxy matrix resins.

REINFORCING MATERIAL CONTAINING COVERING LAYER AND METHOD OF PRODUCING REINFORCING MATERIAL CONTAINING COVERING LAYER

Provided is a reinforcing material having high interfacial adhesion with a matrix resin. The reinforcing material containing a covering layer according to an embodiment of the present invention includes a reinforcing material that imparts strength to a matrix resin by being combined with the matrix resin, and a covering layer formed on a surface of the reinforcing material, in which the covering layer is formed of a vaporized material generated by heating the resin. 1. A reinforcing material containing a covering layer comprising:a reinforcing material that imparts strength to a matrix resin by being combined with the matrix resin; anda covering layer formed on a surface of the reinforcing material,wherein the covering layer is formed of a vaporized material generated by heating the resin.2. The reinforcing material containing a covering layer according to claim 1 , wherein the reinforcing material has a spherical shape claim 1 , a flat plate shape claim 1 , a fibrous shape claim 1 , or a needle shape.3. The reinforcing material containing a covering layer according to claim 1 , wherein the reinforcing material is an inorganic material.4. The reinforcing material containing a covering layer according to claim 1 , wherein the reinforcing material is a carbon fiber.5. The reinforcing material containing a covering layer according to claim 1 , wherein the resin is randomly decomposed by heating.6. The reinforcing material containing a covering layer according to claim 1 , wherein the resin is an epoxy resin.7. The reinforcing material containing a covering layer according to claim 1 , wherein the reinforcing material is recovered from reinforced plastic or prepreg.8. A method of producing a reinforcing material containing a covering layer comprising:a step of heating a resin to generate a vaporized material; anda step of bringing the vaporized material into contact with a reinforcing material in the absence of superheated steam to form a covering layer on a surface of ...

Hemp Fiber Reinforced Composite with Recycled High Density Polyethylene and Production Thereof

Novel structural materials composed of industrial hemp fiber with recycled high density polyethylene (HDPE) as well as methods for the production of the same are disclosed. The material's mechanical strength outperforms that of conventional lumber and could compete with glass fiber reinforced composites, particularly in tensile strength. In addition, this material offers many other significant advantages including insect free, high moisture resistance, no harmful chemical treatments, and no rapid corrosion in water environments. 1. A composite material , comprising:natural fibers consisting of hemp fibers, wherein the natural fibers are embedded in a matrix of high density polyethylene, and wherein composite material has a high tensile strength of greater than 60 MPa.2. The composite material of claim 1 , wherein the high density polyethylene is recycled high density polyethylene.3. The composite material of claim 1 , wherein the hemp fibers have an aspect ratio from about 0.0015 to about 0.003.4. The composite material of claim 3 , wherein the hemp fibers have an average length of about 0.5 inches to 2 inches.5. The composite material of claim 1 , wherein the composite material has a high density polyethylene composition between 30 wt. % and 60 wt. % of hemp fiber.6. The composite material of claim 2 , wherein the hemp fibers were chemically treated with an alkalization process.7. The composite material of claim 2 , wherein the hemp fibers have the properties of hemp fibers that were chemically treated with an alkalization process.8. The composite material of claim 2 , wherein the hemp fibers have a fiber orientation are arranged predominantly in a length direction with approximately a 20% cross directional orientation. This U.S. non-provisional patent application claims priority under 35 U.S.C. §119 to pending U.S. non-provisional patent application No. 14/279,429 filed, on May 16, 2014, which claims priority to U.S. Pat. No. 9,187,624 issued on Nov. 17, 2015, and ...

FIBER REINFORCED THERMOPLASTIC COMPOSITES AND METHODS OF MAKING

Methods of making a fiber-reinforced thermoplastic polyurethane composite are described. The methods may include applying a sizing composition to a plurality of fibers to make sized fibers, where the sizing composition may include at least one curative for a thermoplastic polyurethane prepolymer. The sized fibers may be contacted with a thermoplastic polyurethane prepolymer composition to form a resin-fiber amalgam, where the thermoplastic polyurethane prepolymer composition includes 50 wt. % or less of a total amount of the curative that is also present on the sized fibers. The resin-fiber amalgam may then be cured to form the fiber-reinforced thermoplastic polyurethane composite. 1. A fiber-reinforced polyurethane composite comprising:sized fibers that have been formed from a plurality of fibers contacted with a sizing composition that has at least one curative; anda thermoplastic polyurethane matrix formed from a thermoplastic polyurethane prepolymer composition that included 50 wt. % or less of a total amount of the at least one curative present on the sized fibers.2. The fiber-reinforced polyurethane composite of claim 1 , wherein the thermoplastic polyurethane prepolymer composition included 30 wt. % of less of the total amount of the at least one curative present on the sized fibers.3. The fiber-reinforced polyurethane composite of claim 1 , wherein the thermoplastic polyurethane prepolymer composition included 10 wt. % of less of the total amount of the at least one curative present on the sized fibers.4. The fiber-reinforced polyurethane composite of claim 1 , wherein the thermoplastic polyurethane prepolymer composition lacked any of the at least one curative present on the sized fibers.5. The fiber-reinforced polyurethane composite of claim 1 , wherein the thermoplastic polyurethane prepolymer composition is the reaction product of a polyol and a polyisocyanate compound.6. The fiber-reinforced polyurethane composite of claim 5 , wherein the polyol ...

POLYURETHANE PREPREGS WITH CONTROLLABLE TACK

The invention relates to a process for producing a prepreg based on polyurethane, which is notable for high storage stability at room temperature, a two-stage reaction mechanism, and adjustable adhesion on metal surfaces. It is based on the problem of making the surface tack of the prepregs controllable during processing. The solution is to assemble the PU mixture from which the matrix originates at a later stage such that the glass transition temperature of the thermoplastic polymer is above 30° C. For this purpose, the invention proposes two basically independent but certainly synergistic measures, namely: 1. Process for producing a prepreg , comprising the steps of: at least one blocked hardener which is preferably an internally blocked uretdione having an NCO functionality of at least two,', 'at least one binder which is a polyol compound having an OH functionality of 3 to 6 and which has at least one polar functional group selected from an ester, carbonate, amide, urethane, urea, thioester or thiocarbonate functionality;', 'at least one co-binder which is an epoxy resin,', 'at least one hardener which corresponds to the co-binder and is selected from the group comprising the following substance classes: aliphatic polyamines, cycloaliphatic polyamines, polyetheramines, polymercaptans or polyamidoamines, polycarboxylic acids, polycarboxylic anhydrides;, 'a) providing a reactive composition comprising at least the following constituentsb) providing fibres;c) coating the fibres with the reactive composition;d) exposing at least the reactive composition to heat to perform a first crosslinking reaction, in the course of which hardener and binder are converted to a thermoplastic polymer, the fibres being embedded into the thermoplastic polymer;e) obtaining a prepreg comprising the thermoplastic polymer with the fibres embedded therein,characterized in thatthe reactive composition is provided in such a way that the glass transition temperature of the thermoplastic ...

METHOD FOR PREPARING MODIFIED RUBBER, MODIFIED RUBBER, AND BULLETPROOF AND PUNCTURE RESISTANT TIRE

A method for preparing a modified rubber introduces a reactive group into a high-performance short fiber by irritating the short fiber by ultraviolet light, and modifies the short fiber by a coupling agent to increase the compatibility of the short fiber with a rubber matrix, and finally, utilizes the charge repulsion of sodium lauryl sulfate to effectively avoid the agglomeration of the short fibers in the rubber matrix, which is benefit for obtaining the modified rubber. The present disclosure further provides a modified rubber prepared by the method and a bulletproof and puncture resistant tire prepared by the modified rubber, wherein a buffer layer is made by the modified rubber, and at least one of a tread, a belt ply and an inner liner is made by the modified rubber, and a cord ply is woven by twisted high-performance long fibers. 1. A method for preparing a modified rubber , comprising the steps of:irradiating high-performance short fibers by ultraviolet light;adding the irradiated high-performance short fibers to ethanol and stirring to prepare a uniformly dispersed fiber suspension;adding a coupling agent to the prepared fiber suspension;adjusting a pH value of the fiber suspension to a range from 8 to 9, and waiting for 2 to 4 hours at room temperature;adding sodium dodecylbenzenesulfonate into the fiber suspension and waiting for 1 to 2 hours to prepare a reaction solution;filtering the reaction solution under a reduced pressure to remove liquid from the reaction solution and prepare a modified fiber slurry;adding the modified fiber slurry into a carbon black and an inorganic filler to prepare a modified fiber slurry mixture;adding plasticized polar or non-polar rubber to an internal mixer and pressurized mixing for 1 to 2 minutes to prepare a rubber matrix;adding the modified fiber slurry mixture to the rubber matrix and further pressurized mixing for 1 to 2 minutes to prepare a mixed rubber compound;extruding the rubber compound from an open mill to ...

FIBER SIZING AGENT, FIBER MATERIAL, MOLDING MATERIAL AND MOLDING

A fiber sizing agent includes: a vinyl ester resin (A) having an alkoxy polyoxyalkylene structure and a urethane bond; and an aqueous medium. The fiber sizing agent has excellent fiber sizing properties for various fibers such as glass fibers and carbon fibers. A molded article obtained from a molding material including the fiber sizing agent is excellent in various physical properties such as bending strength, compressive strength, and interlaminar shear strength, and thus can be used, for example, for an automobile member, an aircraft member, a windmill member, and an industrial member. 1. A fiber sizing agent comprising:a vinyl ester resin (A) having an alkoxy polyoxyalkylene structure and a urethane bond; andan aqueous medium.2. The fiber sizing agent according to claim 1 ,wherein the vinyl ester resin (A) has a structure derived from a bisphenol A type epoxy resin.3. The fiber sizing agent according to claim 1 , further comprising:a vinyl ester resin (B) other than the vinyl ester resin (A).4. A fiber material comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the fiber sizing agent according to .'}5. A molding material comprising:{'claim-ref': {'@idref': 'CLM-00004', 'claim 4'}, 'the fiber material according to ; and'}a thermosetting resin.6. A molded article comprising a cured product of the molding material according to .7. The fiber sizing agent according to claim 2 , further comprising:a vinyl ester resin (B) other than the vinyl ester resin (A). The present invention relates to a fiber sizing agent useful for fiber sizing and also relates to a fiber material, a molding material, and a molded article.As automotive parts and aircraft parts that require high strength and excellent durability, for example, a matrix resin such as an epoxy resin and a vinyl ester resin (epoxy acrylate) and fiber reinforced plastics including glass fibers and carbon fibers are used.As the glass fibers or the carbon fibers used for the fiber reinforced plastics, ...

RESIN-METAL COMPOSITE MEMBER FOR TIRE, AND TIRE

A resin-metal composite member for a tire, the member including a metal member (), an adhesion layer (), and a covering resin layer () in the listed order, in which the adhesion layer () includes a polyester-based thermoplastic elastomer having a polar functional group, and the covering resin layer () includes a polyester-based thermoplastic elastomer. 1. A resin-metal composite member for a tire , the member comprising a metal member , an adhesion layer , and a covering resin layer in this order , wherein:the adhesion layer comprises a polyester-based thermoplastic elastomer having a polar functional group, andthe covering resin layer comprises a polyester-based thermoplastic elastomer.2. The resin-metal composite member for a tire according to claim 1 , wherein the polyester-based thermoplastic elastomer having a polar functional group has claim 1 , as the polar functional group claim 1 , at least one group selected from the group consisting of an amino group claim 1 , an epoxy group claim 1 , a carboxy group and an anhydride group thereof.3. The resin-metal composite member for a tire according to claim 1 , wherein the adhesion layer comprises 50% by mass or more of the polyester-based thermoplastic elastomer having a polar functional group with respect to an entire adhesion layer.4. The resin-metal composite member for a tire according to claim 1 , wherein the covering resin layer comprises 50% by mass or more of a polyester-based thermoplastic elastomer having no polar functional group claim 1 , as the polyester-based thermoplastic elastomer claim 1 , with respect to an entire covering resin layer.5. The resin-metal composite member for a tire according to claim 1 , wherein the polyester-based thermoplastic elastomer having a polar functional group in the adhesion layer has a melting point of from 160° C. to 230° C.6. The resin-metal composite member for a tire according to claim 1 , wherein the polyester-based thermoplastic elastomer in the covering resin ...

Reinforcing Carbon Fiber Bundle, Method for Manufacturing the Same and Method for Manufacturing Composite Using the Same

There is provided a reinforcing carbon fiber bundle of the present invention is a reinforcing carbon fiber bundle with a sizing agent adhered to surfaces of carbon fibers, and characterized in that the sizing agent is constituted by at least two components, a first component does not melt at 150° C., and a second component in flowable at 150° C., and the reinforcing carbon fiber bundle is improved in impregnation property and openability and is excellent in workability and optimum for a composite.

ADHESIVE TREATMENT FOR FIBER FOR POLYMER REINFORCEMENT AND REINFORCED PRODUCTS

An aqueous adhesive composition for treating a reinforcing fiber for bonding to a thermosetting polymer matrix and products made therefrom such as power transmission belts. The adhesive composition includes: water as the solvent or dispersing medium; a polyelectrolyte co-curable with the polymer matrix; a primer material compatible with the fiber and co-curable with the polyelectrolyte; and optionally a rubber curative compatible with the polyelectrolyte and the polymer matrix. A fiber-reinforced, composite polymer system may thus include a thermosetting polymer matrix, a reinforcing fiber embedded therein, and an adhesive composition coating the fiber; the adhesive composition including a polyelectrolyte co-curable with the polymer matrix and a primer material compatible with the fiber and co-curable with the polyelectrolyte. The adhesive composition may include a curative compatible with the polyelectrolyte. In one preferred embodiment, the invention is an aqueous adhesive composition including water, an epoxy resin, a maleated polybutadiene derivative, and a curative. 1. A composite material composition comprising a polymeric matrix , a fiber reinforcing said polymeric matrix , said fiber having been treated with an aqueous adhesive composition and dried , said aqueous adhesive composition comprising: water as the solvent or dispersing medium; a polyelectrolyte co-curable with the polymeric matrix; a primer material compatible with the fiber and co-curable with the polyelectrolyte; and optionally a curative compatible with the polyelectrolyte and the polymer matrix.2. The composite material of wherein said polyelectrolyte comprises a polymer backbone with pendant electrolyte groups comprising salts of organic acid groups.3. The composite material of wherein the salts are sodium claim 2 , potassium claim 2 , ammonium claim 2 , magnesium claim 2 , calcium claim 2 , aluminum claim 2 , iron claim 2 , copper claim 2 , or zinc salts and the organic acid groups are ...

Carbon Fibers Having A Modified Surface, Method For Modify-ing A Carbon Fiber Surface, And Use Of The Carbon Fiber

Carbon fibers that can be used for carbon-fiber composite plastics are disclosed. A carbon fiber may include a thin but hard plasma coating with amorphous, i.e., vitreous, siloxane on the carbon fiber. The carbon fiber is thus provided with a surface that can be processed like a glass fiber surface. 1. A carbon fiber , comprising:a surface having a siloxane-containing coating with a layer thickness of less than 1 μm.2. The carbon fiber of claim 1 , further comprising at least one additional coating.3. The carbon fiber of claim 2 , comprising an additional coating applied over the siloxane-containing coating by solution chemistry.4. The carbon fiber of claim 3 , wherein the additional coating applied over the siloxane-containing coating by solution chemistry comprises an epoxy resin.5. The carbon fiber of claim 1 , comprising at least one further siloxane-containing coating provided on the siloxane-containing coating having the layer thickness less than 1 μm.6. A process for surface modification of a carbon fiber claim 1 , comprising:activating a surface of a carbon fiber using plasma; andforming a siloxane-containing coating on the activated surface of the carbon fiber by plasma coating.7. The process of claim 6 , wherein the siloxane-containing coating is formed in atmospheric plasma.8. The process of claim 6 , comprising performing the activation of the carbon fiber surface and the coating with the amorphous siloxane-containing coating in a plasma-treatment step.9. (canceled)10. The process of claim 6 , comprising forming the siloxane-containing with layer thickness of less than 1 μm.11. The process of claim 6 , comprising forming the siloxane-containing with layer thickness in the range from 10 to 300 nm.12. The process of claim 6 , comprising forming the siloxane-containing with layer thickness in the range from 50 to 150 nm.13. The process of claim 6 , further comprising forming an additional coating over the siloxane-containing coating by solution chemistry.14 ...

THERMOPLASTIC RESIN COMPOSITION, FIBER-REINFORCED RESIN SUBSTRATE, AND MOLDED ARTICLE

The purpose of the present invention is to provide a thermoplastic resin composition having exceptional thermal stability and mechanical characteristics, a fiber-reinforced resin substrate, and a molded article obtained therefrom. In order to achieve the abovementioned purpose, an embodiment of the present invention has the structure described below. Specifically, a thermoplastic resin composition including a thermoplastic resin (A) having an electron-donating group, and a transition metal compound (B), wherein the transition metal compound (B) includes a nickel compound (B1) and a copper compound (B2), the complete decomposition temperature of the copper compound (B2) is 400° C. or higher, and the copper compound (B2) has a nickel content of 0.001-4 parts by mass (inclusive) and a copper content of 0.001-4 parts by mass (inclusive) with respect to 100 parts by mass of the thermoplastic resin (A) having an electron-donating group. 1. A thermoplastic resin composition comprising:a thermoplastic resin (A) having an electron donating group; anda transition metal compound (B),wherein the transition metal compound (B) includes a nickel compound (B1) and a copper compound (B2), the copper compound (B2) has a complete decomposition temperature of 400° C. or higher, and a nickel content is 0.001 parts by mass or more and 4 parts by mass or less, and a copper content is 0.001 parts by mass or more and 4 parts by mass or less, based on 100 parts by mass of the thermoplastic resin (A) having an electron donating group.2. A thermoplastic resin composition comprising:a thermoplastic resin (A) having an electron donating group;a transition metal compound (B); andan amine compound (C),wherein a melt viscosity retention rate of the thermoplastic resin (A) having an electron donating group is 90% or more and 7000% or less after being heated at a melting point+70° C. for 30 minutes, the thermoplastic resin (A) having an electron donating group includes polyarylenesulfide (A1), the ...

COMPOSITE MOULDING MATERIALS

A method of manufacture of a composite moulding material () comprising a fibrous layer () and a graphene/graphitic dispersion () applied to the fibrous layer () at one or more localised regions () over a surface () of the fibrous layer() in which the graphene/graphitic dispersion () is comprised of graphene nanoplates, graphene oxide nanoplates, reduced graphene oxide nanoplates, bilayer graphene nanoplates, bilayer graphene oxide nanoplates, bilayer reduced graphene oxide nanoplates, few-layer graphene nanoplates, few-layer graphene oxide nanoplates, few-layer reduced graphene oxide nanoplates, graphene/graphite nanoplates of 6 to 14 layers of carbon atoms, graphite flakes with nanoscale dimensions and 40 or less layers of carbon atoms, graphite flakes with nanoscale dimensions and 25 to 30 layers of carbon atoms, graphite flakes with nanoscale dimensions and 25 to 35 layers of carbon atoms, graphite flakes with nanoscale dimensions and 20 to 35 layers of carbon atoms, or graphite flakes with nanoscale dimensions and 20 to 40 layers of carbon atoms, in which the dispersion () is applied to the fibrous layer () using at least one valvejet print head (). 1. A method of manufacture of a composite moulding material comprising a fibrous layer and a graphene/graphitic dispersion applied to the fibrous layer at one or more localised regions over a surface of the fibrous layer in which the graphene/graphitic dispersion comprises graphene nanoplates , graphene oxide nanoplates , reduced graphene oxide nanoplates , bilayer graphene nanoplates , bilayer graphene oxide nanoplates , bilayer reduced graphene oxide nanoplates , few-layer graphene nanoplates , few-layer graphene oxide nanoplates , few-layer reduced graphene oxide nanoplates , graphene/graphite nanoplates of 6 to 14 layers of carbon atoms , graphite flakes with nanoscale dimensions and 40 or less layers of carbon atoms , graphite flakes with nanoscale dimensions and 25 to 30 layers of carbon atoms , graphite flakes ...

REINFORCING FIBER BUNDLE AND MOLDING MATERIAL

Disclosed are: a reinforcing fiber bundle with excellent mechanical property and handling property, which contains a propylene-based resin (A), a propylene-based resin (B) comprising at least a carboxylic acid salt bonded to the polymer chain, and a reinforcing fiber (C) wherein the propylene-based resin (A) comprises more than 70% by mass but not more than 100% by mass of a component (A-1) having a weight average molecular weight of 150,000 or more, the amount of the propylene-based resin (B) is 3 to 50 parts by mass per 100 parts by mass of the propylene-based resin (A), and the total content rate of the propylene-based resin (A) and the propylene-based resin (B) is 0.3 to 5% by mass in the whole reinforcing fiber bundle; and a molding material comprising the reinforcing fiber bundle and a matrix resin. 1. A reinforcing fiber bundle which contains a propylene-based resin (A) , a propylene-based resin (B) comprising at least a carboxylic acid salt bonded to the polymer chain , and a reinforcing fiber (C) whereinthe propylene-based resin (A) comprises more than 70% by mass but not more than 100% by mass of a component (A-1) having a weight average molecular weight of 150,000 or more, and 0 to 30% by mass of a component (A-2) having a weight average molecular weight of less than 150,000, provided that the sum of the component (A-1) and the component (A-2) is 100% by mass,the weight average molecular weight of the propylene-based resin (A) is higher than the weight average molecular weight of the propylene-based resin (B),the amount of the propylene-based resin (B) is 3 to 50 parts by mass per 100 parts by mass of the propylene-based resin (A), andthe total content rate of the propylene-based resin (A) and the propylene-based resin (B) is 0.3 to 5% by mass in the whole reinforcing fiber bundle.2. The reinforcing fiber bundle according to claim 1 , wherein the total content rate of the propylene-based resin (A) and the propylene-based resin (B) is 0.3 to 3% by mass in ...

Method for treating a textile reinforcement element with plasma

During the method for treating a textile reinforcing element (R), the reinforcing element (R) is exposed, at atmospheric pressure, to a plasma flow ( 42 ) generated by means of a plasma torch ( 26 ) and from a gas comprising at least one oxidizing component.

Composite Base Material

There is provided a composite base material, including: carbon fibers having an average fiber length of 3 mm or more and 100 mm or less; and a thermoplastic resin is firmly fixed to the carbon fibers in an amount of 3 to 100 parts by mass with respect to 100 parts by mass of the carbon fibers, wherein a void ratio is more than 7 vol % to less than 100 vol %. 1. A composite base material , comprising:carbon fibers having an average fiber length of 3 mm or more and 100 mm or less; anda thermoplastic resin is firmly fixed to the carbon fibers in an amount of 3 to 100 parts by mass with respect to 100 parts by mass of the carbon fibers,wherein a void ratio of the composite base material is more than 7 vol % to less than 100 vol %.2. The composite base material according to claim 1 ,wherein the composite base material is obtained by heating and pressurizing a mat-form material in which a carbon fiber mat and a thermoplastic resin are combined, andthe composite base material is obtained by applying heat and pressure so that a decrease in the void ratio does not exceed 40 vol % in one heating and pressurizing treatment.3. The composite base material according to claim 1 ,wherein the composite base material is obtained by heating and pressurizing a mat-form material in which a carbon fiber mat and a thermoplastic resin are combined, andthe composite base material has the void ratio of more than 7 vol % to less than 80 vol %, obtained by preparing a composite base material having a void ratio of 60 vol % or more and further heating and pressurizing the composite base material so that a decrease in the void ratio does not exceed 20 vol % in one heating and pressurizing treatment.4. The composite base material according to claim 1 ,wherein the composite base material is obtained by heating and pressurizing a mat-form material in which a carbon fiber mat and a thermoplastic resin are combined, andthe composite base material is a composite base material having a void ratio of ...

FIBER SIZING AGENT COMPOSITION

A fiber sizing agent is described, which is capable of imparting sufficient sizing properties and fiber spreading properties to reinforced fiber bundles for producing fiber-reinforced composite materials. A fiber sizing agent composition (E) includes a sizing agent (A) having a viscosity of 50 to 3,000 Pa·s at 35° C., and has a thixotropic index of 3 to 15. The sizing agent (A) is preferably an epoxy resin, a polyester resin, a polyurethane resin, a polyether resin or a vinyl ester resin. 1. A fiber sizing agent composition (E) , comprising a sizing agent (A) having a viscosity of 50 to 3 ,000 Pa·s at 35° C. , and having a thixotropic index of 3 to 15.2. The fiber sizing agent composition (E) of claim 1 , further comprising a thixotropy imparting agent (B).3. The fiber sizing agent composition (E) of claim 1 , wherein the sizing agent (A) is one or more selected from the group consisting of an epoxy resin claim 1 , a polyester resin claim 1 , a polyurethane resin claim 1 , a polyether resin and a vinyl ester resin.4. The fiber sizing agent composition (E) of claim 2 , wherein the thixotropy imparting agent (B) is one or more selected from the group consisting of a fatty acid amide claim 2 , a fatty acid ester claim 2 , a fatty acid salt and a polyolefin oxide.5. The fiber sizing agent composition (E) of claim 2 , wherein a content of the thixotropy imparting agent (B) is 3 to 30 wt % relative to a weight of (E).6. A fiber sizing agent aqueous solution (S) obtained by dissolving or dispersing the fiber sizing agent composition (E) of in an aqueous medium.7. A fabricating method of a fiber bundle claim 1 , characterized by processing a fiber using the fiber sizing agent composition (E) of .8. The fabricating method of a fiber bundle of claim 7 , wherein the fiber is one or more selected from the group consisting of a carbon fiber claim 7 , a glass fiber claim 7 , an aramid fiber claim 7 , a ceramic fiber claim 7 , a metallic fiber claim 7 , a mineral fiber and a slag ...

COATED FIBER AND METHOD

A coated fiber for polymer reinforcement is disclosed. The coated fiber comprises a fiber and a coating disposed about said fiber. The fiber has a denier of from about 250 to about 3,000. The coating comprises a branched polyethylene imine. The fiber is present in the coated fiber in an amount of from about 80 to about 99.8 percent by weight and the coating is present in the coated fiber in an amount of from about 0.2 to about 20 percent by weight, with percent by weight based on the total weight of the coated fiber. A method of producing the coated fiber is also disclosed. 1. A coated fiber for polymer reinforcement , said fiber comprising:A. a fiber having a denier of from about 250 to about 3,000 and present in an amount of from about 80 to about 99.8 percent by weight based on the total weight of said coated fiber; andB. a coating disposed about said fiber and comprising a branched polyethylene imine and present in an amount of from about 0.2 to about 20 percent by weight based on the total weight of said coated fiber.2. The coated fiber as set forth in wherein said branched polyethylene imine has a weight average molecular weight (M) of from about 300 to about 2 claim 1 ,000 claim 1 ,000.3. The coated fiber as set forth in wherein said branched polyethylene imine has a degree of branching of from about 0.30 to about 0.85 as determined via C-NMR in DO.4. The coated fiber as set forth in wherein said branched polyethylene imine comprises from about 30 to about 45 percent linear groups claim 1 , from about 20 to about 30 dendric groups claim 1 , and from about 30 to about 45 percent terminal groups claim 1 , based on 100 percent of all groups present in said branched polyethylene imine as determined via C-NMR in DO.5. The coated fiber as set forth in wherein said branched polyethylene imine is further modified via amidation with fatty acids claim 1 , alkoxylation with alkylene oxides claim 1 , and/or by carboxylation with acrylic acid and/or maleic acid.6. The ...

METHOD FOR CURING CURABLE COMPOSITIONS

The invention relates to a process for the curing of latently reactive, heat-curable compositions which do not harden at room temperature. The composition includes a polymer obtainable via reaction of certain compounds having two aldehyde groups with polyacrylate compounds having two or more acrylate groups, and also a compound which bears at least two thiol groups. 2. The process according to claim 1 , wherein the curable composition exhibits a viscosity increase of less than 100 000 mPa s within a period of 4 h at room temperature.3. The process according to claim 1 , wherein the compound having two or more aldehyde groups is selected from the group consisting of phthalaldehyde claim 1 , isophthalaldehyde claim 1 , and a mixture of these.4. The process according to claim 1 , wherein the diacrylate compounds (B2) are difunctional acrylates of one of alkanediols claim 1 , cycloalkanediols claim 1 , lower polyalkylene glycols and diamines claim 1 , and wherein the acrylate compounds (By) are selected from the group consisting of polyether acrylates claim 1 , polyester acrylates claim 1 , acrylated polyacrylatols claim 1 , urethane acrylates claim 1 , and acrylic esters of alkoxylated polyols.5. The process according to claim 1 , wherein the acrylate compounds (By) and (B2) are selected from the group consisting of ethylene glycol diacrylate claim 1 , 1 claim 1 ,2-propanediol diacrylate claim 1 , 1 claim 1 ,3-propanediol diacrylate claim 1 , 1 claim 1 ,3-butanediol diacrylate claim 1 , 1 claim 1 ,4-butanediol diacrylate claim 1 , 1 claim 1 ,5-pentanediol diacrylate claim 1 , 1 claim 1 ,6-hexanediol diacrylate claim 1 , 1 claim 1 ,8-octanediol diacrylate claim 1 , neopentyl glycol diacrylate claim 1 , 1 claim 1 ,1-cyclohexanedimethanol diacrylate claim 1 , 1 claim 1 ,2-cyclohexanedimethanol diacrylate claim 1 , 1 claim 1 ,3-cyclohexanedimethanol diacrylate claim 1 , 1 claim 1 ,4-cyclohexanedimethanol diacrylate claim 1 , 1 claim 1 ,2-cyclohexanediol diacrylate claim 1 ...

Random Mat and Fiber-Reinforced Composite Material Shaped Product

There is provided a random mat including reinforcing fibers having an average fiber length of 3 to 100 mm and a thermoplastic resin, wherein the reinforcing fibers satisfy the following i) to iii). 1. A random mat , comprising:reinforcing fibers having an average fiber length of 3 to 100 mm; anda thermoplastic resin, [ {'br': None, '0 mm Подробнее

Article Made by Additive Manufacturing with Continuous Fiber Reinforcements

Several examples of an article of manufacture made with an additive manufacturing machine are disclosed. A length of fiber reinforcement is provided to a nozzle. The fiber reinforcement is embedded into a stream of a base polymer material at the nozzle and deposited as a bead of composite polymer material having fiber reinforcement. The fiber reinforcement may be dry or pre-impregnated with a reinforcing polymer. The additional strength of the composite polymer material having fiber reinforcement allows for true, three-dimensional printing of articles having unsupported regions. 1. A composite article of manufacture comprising:one or more deposited beads comprised of a polymer material; andwherein at least one deposited bead of polymer material includes an embedded fiber reinforcement.2. The composite article of claim 1 , wherein the polymer material is selected from the group consisting of a thermoplastic polymer claim 1 , a combination of thermoplastic polymers claim 1 , a thermoset polymer claim 1 , a combination of thermoset polymers and a combination of thermoplastic and thermoset polymers.3. The composite article of claim 1 , wherein the fibers in the embedded fiber reinforcement are selected from the group consisting of carbon fibers claim 1 , glass fibers and aramid fibers.4. The composite article of claim 1 , wherein the polymer material includes distributed claim 1 , discontinuous fibers that are selected from the group consisting of carbon fibers claim 1 , glass fibers and aramid fibers.5. The composite article of wherein the discontinuous fibers are coated with an electro-magnetically susceptible nickel coating.6. The composite article of claim 1 , wherein at least one deposited bead having an embedded fiber reinforcement extends over an unsupported region of the composite article.7. A composite article of manufacture comprising:one or more deposited beads comprised of a first polymer material; andwherein at least one deposited bead of the first polymer ...

Nanocellulose Surface Coated Support Material

The present invention relates to a process for the production of a surface coated support material wherein said process comprises contacting a support material with an aqueous dispersion of nanocellulose. The surface coated support material can be used in a composite material. The invention therefore further relates to the surface coated support material per se, a composite comprising the material, a process for the production of the composite material and an article produced from the composite material.

COMPOSITE MATERIALS WITH ELECTRICALLY CONDUCTIVE AND DELAMINATION RESISTANT PROPERTIES

A curable composite material that may be used in applications where both high mechanical performance and high electrical conductivity are required. The curable composite material includes two or more layers of reinforcement fibers that have been infused or impregnated with a curable matrix resin and an interlaminar region containing carbon nanomaterials, e.g. carbon nanotubes, and insoluble polymeric toughening particles. The carbon nanomaterials are significantly smaller in size as compared to the polymeric toughening particles. The polymeric toughening particles are substantially insoluble in the matrix resin upon curing of the composite material, and remain as discreet particles at the interlaminar region after curing. Methods for fabricating curable composite materials and cured composite structures are also disclosed. 1. A curable composite material comprising:at least two layers of reinforcing fibres impregnated with a curable matrix resin; and at least one interlaminar region formed between adjacent layers of reinforcing fibers, the interlaminar region comprising (i) carbon-based, nano-sized structures dispersed in a curable matrix resin, and (ii) insoluble polymeric toughening particles embedded in the same curable matrix resin,whereinthe carbon-based, nano-sized structures have at least one dimension smaller than 100 nm (0.1 μm),the polymeric toughening particles have a mean particle size (d50) which is at least 100 times bigger than the smallest dimension of the carbon-based, nano-sized structures, and the mean particle size is within the range of 10-100 μm,the polymeric toughening particles are insoluble in the matrix resin at the interlaminar region during curing of the composite material, and remain as discreet particles after curing, and{'sub': 'Ic', 'sup': '2', 'upon curing, the composite material exhibits electrical conductivity in the z-direction of greater than 1 S/m, Compression Strength After Impact (CAI), after impact at 30 J, of greater than ...

Method To Process Oilseed Flax Fiber For Use In Biocomposite Materials

A method and system for the production of fibers for use in biocomposites is provided that includes the ability to use both retted and unretted straw, that keeps the molecular structure of the fibers intact by subjecting the fibers to minimal stress, that maximizes the fiber's aspect ratio, that maximizes the strength of the fibers, and that minimizes time and energy inputs, along with maintaining the fibers in good condition for bonding to the polymer(s) used with the fibers to form the biocomposite material. This consequently increases the functionality of the biocomposites produced (i.e. reinforcement, sound absorption, light weight, heat capacity, etc.), increasing their marketability. Additionally, as the disclosed method does not damage the fibers, oilseed flax straw, as well as all types of fibrous materials (i.e. fiber flax, banana, jute, industrial hemp, sisal, coir) etc., can be processed in bio composite materials. 1. A method for preparing fibers of fibrous materials for use in the formation of a biocomposite material , the method comprising the steps of:a) cleaning the fibrous material to separate fibers from other materials in the fibrous material; andb) pre-treating the fibers in a manner that places minimal stress on the fibers.2. The method of wherein the fibrous materials can be retted or unretted.3. The method of wherein the fibrous material is a flax material.4. The method of wherein the step of cleaning the fibrous material comprises tumbling the fibrous material.5. The method of wherein the step of cleaning the fibrous material comprises directing a flow of pressurized air against the fibrous material.6. The method of wherein the step of cleaning the fibrous material comprises simultaneously tumbling and directing a flow of pressurized air against the fibrous material.7. The method of further comprising the steps of:a) washing the fibrous material; andb) drying the fibrous material prior to cleaning the fibrous material.8. The method of wherein ...

Rigid structure uhmwpe ud and composite and the process of making

Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having enhanced flexural properties, which correlates to low composite backface signature. The composites are useful for the production of hard armor articles, including helmet armor.