НЕ СОДЕРЖАЩИЕ ФОРМАЛЬДЕГИДА СВЯЗУЮЩИЕ КОМПОЗИЦИИ С МОДИФИЦИРОВАННОЙ ВЯЗКОСТЬЮ

Изобретение относится к связующим для волоконных композитов и касается не содержащих формальдегида связующих композиций с модифицированной вязкостью. Связующие композиции включают углевод, азотсодержащее соединение и загущающий агент. Связующие композиции обладают вязкостью по Брукфилду 7-50 сантипуазов при 20°C. Загущающие агенты могут включать модифицированные целлюлозы, такие как гидроксиэтилцеллюлоза (ГЭЦ) и карбоксиметилцеллюлоза (КМЦ) и полисахариды, такие как ксантановая смола, гуаровая смола и крахмалы. В изобретении описан также способ получения нетканого стекловолоконного мата и мата из стекловолокна, включающие указанную композицию связующего. Изобретение обеспечивает увеличение вязкости связующих композиций на углеводной основе. 3 н. и 20 з.п. ф-лы, 6 ил., 6 табл., 4 пр.

СПОСОБ ИЗГОТОВЛЕНИЯ ВОЛОКНИСТЫХ НАКЛАДОК, ВОЛОКНИСТАЯ НАКЛАДКА

Изобретение относится к способу изготовления волокнистых накладок. Способ заключается в том, что принимают для заданной толщины накладки шаг перемещения, который изменяется согласно закономерности уменьшения этого шага, принятого для обеспечения постоянной толщины при различных толщинах волокнистых слоев, наложенных друг на друга последовательно и соединенных последовательно слоев указанной толщины накладки, что обеспечивает устранение неоднородности по толщине слоев и позволит изготовить фрикционные и износостойкие детали, в частности, для использования в тормозных дисках. 2 с. и 11 з. п. ф-лы, 4 ил.

СПОСОБ ИЗГОТОВЛЕНИЯ КОЛЬЦЕВОГО ВОЛОКНИСТОГО ЭЛЕМЕНТА

... 1. Способ изготовления кольцевого волокнистого элемента, содержащий следующие этапы: ! - обеспечивают первый волокнистый холст, сформированный из элементов по существу одного направления, ! - формируют поперечный первый кольцевой холст путем укладки первого волокнистого холста поочередно в одном направлении и в противоположном направлении между коаксиальными наружным круглым кольцом и внутренним круглым кольцом с удержанием холста на этих кольцах, ! - обеспечивают второй волокнистый холст, сформированный из элементов по существу одного направления, ! - формируют окружной второй кольцевой холст путем укладки второго волокнистого холста в окружном направлении между наружным и внутренним кольцами, ! - связывают поперечный и окружной кольцевые холсты друг с другом, и ! - приводят поперечный и окружной кольцевые холсты во вращение вокруг оси наружного и внутреннего колец для выполнения множества полных оборотов с получением непосредственно из указанных элементов одного направления толстого кольцевого ...

Bewitterungsstabiler Vliesstoff

Endlosfaserverstärkte Vliesstoffe aus aktivierten Kohlenstofffasern

Aktivierte textile Flächenstruktur, dadurch gekennzeichnet, dass sie eine komplexe Bauweise mit mindestens einer Schicht aus aktivierten Kohlenstofffasern in Form eines Vliesstoffes (aktivierte Schicht), mindestens einer Armierungsschicht in Form eines textilen Gitters und mindestens einem strukturstabilisierenden Wirkfadensystem aufweist.

Reibbelag

Es wird ein Reibbelag mit einer porösen Faserschicht beschrieben, der sich dadurch auszeichnet, daß die Faserschicht aus einem gesinterten Faserverbund vorzugsweise aus Polyimidfasern besteht.

Verfahren zur Herstellung wiederverwertbarer Faserverbundwerkstoffe

Kohlenstofffaser-Wirrvliesherstellungsverfahren und Dreidimensional-Vliesherstellungsverfahren sowie Kohlenstofffaser-Wirrvliesherstellungsanordnung und Faservlies

Die Erfindung betrifft ein Kohlenstofffaser-Wirrvliesherstellungsverfahren aus Kohlenstofffasern bis zu einer Faserlänge von 100 mm, umfassend die Schritte: I. Zuführen von Kohlenstofffasern; II. Auflösen/-kämmen und aerodynamisches Vereinzeln der Kohlenstofffasern; III. aerodynamisches Beruhigen der vereinzelten Kohlenstofffasern; IV. Einleiten der beruhigten und vereinzelten Kohlenstofffasern in einen vertikal angeordneten Luftschacht (1), wobei das Einleiten am oberen Ende (12) des Luftschachtes (1) erfolgt; V. kontaktloses Durchmischen der Kohlenstofffasern innerhalb des Luftschachtes (1) durch Luftverwirbeln mittels einer Vielzahl von einzelnen Luftströmen; VI. aerodynamisches Ablegen der Kohlenstofffasern auf eine unterhalb des Luftschachtes (1) angeordnete sich bewegende Form oder Ablegefläche (2), wobei das aerodynamische Ablegen durch ein Absaugen unterhalb der Form oder der Ablegefläche (2) erfolgt. Ferner betrifft die Erfindung eine Kohlenstofffaser-Wirrvliesherstellungsanordnung ...

Process for producing mineral fibre insulation boards and an apparatus for carrying out the process

The invention starts out from a process for producing mineral fibre insulation boards for heat and sound insulation of buildings, in particular boards under plaster or render, wherein the loose mineral fibres are provided with a binder and, if desired, with a hydrophobicising (waterproofing) agent and are collected to form a mineral wool sheet, and wherein the mineral wool sheet is brought to a desired thickness and is conveyed through a curing oven to cure the binder. To improve the process in such a way that it is possible to apply completely uniform layers, in particular plaster layers, which are equally thick everywhere, it is proposed that at least one of the large surfaces of the mineral wool sheet in the state in which the binder is not yet cured is provided with depressions, and that pressure-equalising bodies are introduced into the depressions in such a way that the outer surfaces of the bodies are essentially flush with the respective surface.

NON-WOVEN ARTICLES CONTAINING A HEATRESISTANT BINDER

... 1394460 Non-woven fabrics RHONE-POULENC SA 15 Dec 1972 [17 Dec 1971] 58047/ 72 Headings D1R and D2B A non-woven fabric comprises a web of either non-fusible fibres or fibres having a softening point or melting point above 180‹C bonded together by a polyamide-imide in an amount from 3 to 150% by wt. based on the dry wt. of the fibres. The polyamide-imide may comprise a plurality of units of the formula: in which Q represents a divalent radical containing at least one benzene ring and R represents a trivalent aromatic radical. The fibres may be inorganic e.g. glass, carbon, boron, asbestos, metal e.g. copper, steel, or fibres of aluminium oxide and of zirconium oxide, or organic polymeric e.g. polyesters, polyacrylonitrile, polytetrafluoroethylene, copolymers of tetrafluoroethylene and hexafluoropropylene, polyamides, or polyamide-imides. The fabric may be made by forming a dry web of fibres, contacting the web with organic solution of the polyamide-imide, and drying the treated web. The ...

CARBON-CARBON COMPOSITE MATERIAL AND METHOD FOR ITS PRODUCTION

FLEECE MATERIAL

CONDUCTIVE FLEECE MATERIAL

ELECTRICALLY LEADING FIBER BUNDLE IN COURSE FORM

STRONG MATERIAL WITH VOLUMISIERTEN FIBERS AND PROCEDURE FOR ITS PRODUCTION

PROCEDURE FOR THE PRODUCTION OF RE-USABLE OF GRP COMPONENTS MATERIALS

ARTICLES NON-TISSES A LIANT THERMOSTABLE

FABRICATING THREE-DIMENSIONAL ANNULAR FIBER STRUCTURES

A first fiber sheet made up of substantially unidirectional elements, is brought (by device 300) and laid (by shuttle 322) in alternation in one direction and in the opposite direction between coaxial outer (100) and inner (200) circular rings with the sheets being held by pegs (102, 202) at said rings; and a second fiber sheet made up of substantially unidirectional elements is deposited (by device 400) in a circumferential direction between said outer and inner rings, the transverse and circumferential annular sheets are bonded together by a bonding device (500) and are driven in rotation about the axis of the outer and inner rings so as to perform a plurality of complete revolutions in order to obtain a thick annular fiber structure having layers made up by the transverse sheet alternating with and bonded to layers made up by the circumferential sheet.

GAS DIFFUSION ELECTRODE SUBSTRATE AND METHOD FOR MANUFACTURING SAME, GAS DIFFUSION ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL

The present invention addresses the problem of providing a gas diffusion electrode substrate with which it is possible to feed a reaction gas to a gas diffusion electrode and discharge water produced by the reaction in a satisfactory manner. The present invention is a gas diffusion electrode substrate in which a water repellent preparation is imparted to a carbon fiber nonwoven in which non-continuous protrusions are dispersedly formed on at least one surface at a density of 30/cm2 to 5000/cm2.

ELECTRICALLY CONDUCTING SET OF FIBERS IN SHEET FORM

The set of fibers in sheet form has conducting fibers in such an amount, with respect to the non-conducting fibers, that there is electrical continuity. The set of fibers may be incorporated in a fabric by holding the non-conducting fibers together in the weft and the warp of the fabric with the non-conducting fibers.

Procédé de fabrication d'un article non tissé

Article non-tissé à liant thermostable

Procédé d'enrobage d'un filament, notamment de carbone, et application de ce procédé

Functional fiber felt covered by transition metal oxide nanomaterials and preparation method thereof

The invention belongs to the technical field of nano-catalyst, in particular to a functional fiber felt covered by transition metal oxide nanomaterials and a preparation method thereof. The functional fiber felt comprises transition metal nano-particles and carbon fiber, wherein the transition metal nano-particles are uniformly distributed on the surface of the carbon fiber; and the particle size of the transition metal nano-particles is 40-70 nanometers, and the particle size of the carbon fiber is 0.8-1.3 micrometers. The preparation process comprises the following steps: preparing a blended spinning solution; carrying out high-voltage electrostatic spinning to obtain a nano-fiber felt; and calcining the nano-fiber felt in the N2 weak reducing atmosphere. The preparation method is simple, the cost is low, the repeatability is good, and the preparation method is easily industrialized. The prepared metal oxide nanomaterial fiber felt can be used as a lithium-air catalytic layer to enhance ...

Preparation method for graphene modified meeting room acoustic boards

CARBON FIBER NONWOVEN FABRIC, and PRODUCING METHOD THEREOF

The present invention has an object of providing the carbon fiber (or the nonwoven fabric configured of the aforementioned carbon fiber) of which the surface area, the graphitization degree, and the fiber diameter are large, high, and small, respectively, and yet of which dispersion is small. The method of producing the carbon fiber nonwoven fabric includes a dispersion liquid preparing step of preparing a dispersion liquid containing resin and pitch, an electrospinning step of producing the nonwoven fabric that is comprised of carbon fiber precursors with electrospinning from the aforementioned dispersion liquid, and a modifying step of modifying the carbon fiber precursors of the nonwoven fabric obtained in the aforementioned electrospinning step into the carbon fiber.

Quasi-three dimensional prefabricated member

The invention discloses a quasi-three dimensional prefabricated member. The quasi-three dimensional prefabricated member comprises a non-weft fabric and a net tire alternative laminate, wherein continuous needling permeation is conducted on a plurality of fixed layers of the non-weft fabric and the net tire alternative laminate through a bidirectional feeding needle machine in the vertical direction, the adjacent layers are connected through vertical fibers generated between the layers, the quasi-three dimensional prefabricated member of a carbon fiber whole structure is obtained, and the volume density of the quasi-three dimensional prefabricated member ranges from 0.45 g/cm<3> to 0.70 g/cm<3>. The quasi-three dimensional prefabricated member reduces the number of carbonization technologies and avoids deformation caused by contraction of long and short fibers and coking caused by uneven density in a carbonization process; the internal structure and hole distribution of the quasi-three ...

Assembly of fibrous elements for obtaining a part made of a composite

The subject of the invention is a fibrous structure that can be embedded in a matrix in order to obtain a part made of a composite, said structure comprising: a first fibrous element (12) having a first face called the bearing face (18); at least one L-shaped fibrous element (20) having a portion called the base, said portion being pressed against said first bearing face (18) of the first fibrouselement (12) in a junction area (22) and another portion, called a flange portion, not pressed against said first fibrous element (12); and another fibrous element, one portion of which is pressed against the flange of said at least one L-shaped fibrous element (20), said elements being assembled by the stitching of fibres (26) from the second face (28) of the first fibrous element (12) so as to form loops, at least certain fibres (26) being oblique to the face (28) of the fist fibrous element (12), in a plane perpendicular to the junction area (22), characterized in that certain loops of said oblique ...

Method for producing fibrous substrate by superimposing layers and substrate therefrom

Friction lining comprises a porous layer formed from a sintered polyimide or polyacrylonitrile fiber composite

Il est décrit une garniture de friction comportant une couche fibreuse poreuse, qui se distingue par le fait que la couche fibreuse est formée d'un composite fibreux fritté, de préférence est formée de fibres de polyimide.

METHOD OF PREPARATION OF TEXTILE PREFORMS FOR THE MANUFACTURE OF PARTS MADE OF COMPOSITE MATERIALS AND PRODUCTS OBTAINED BY SAID METHOD.

MAKING DIMENSIONAL FIBROUS ANNULAR STRUCTURES

REALIZATION Of a PREFORM BY REINFORCEMENT Of a FIBROUS STRUCTURE ET/OUPAR CONNECTION BETWEEN THEM OF FIBROUS STRUCTURES AND APPLICATION TO REALIZATION DEPIECES OUT OF COMPOSITE MATERIAL

CARBON FIBRE COMPOSITE

METHOD FOR REALIZATION OF ANNULAR FIBROUS STRUCTURES, IN PARTICULAR FOR THE MANUFACTURE OF COMPOSITE MATERIAL PARTS

Pour élaborer une structure fibreuse annulaire on utilise une texture en forme de bande (50) formée de deux nappes unidirectionnelles superposées dont les directions font des angles opposés par rapport à la direction longitudinale de la bande, les deux nappes étant liées entre elles de manière à former des mailles élémentaires déformables, on enroule la texture en la déformant pour la transformer en hélice à plat, les mailles élémentaires se déformant de sorte que la variation de masse surfacique entre les diamètres intérieur et extérieur des spires reste limitée, et on applique les spires à plat les unes contre les autres.

탄소 섬유 웹 형성방법, 장치 및 이를 이용한 탄소 섬유 강화 플라스틱의 제조방법

... 카본 및 강화 섬유를 목적하는 탄소 섬유 강화 플라스틱에 필요한 최소한의 카본 및 강화 섬유를 사용하여 웹을 형성시킴으로써 경제적인 탄소 섬유 웹 형성방법, 장치 및 이를 이용한 탄소 섬유 강화 플라스틱의 제조방법이 개시된다. 상기 웹 형성방법은 탄소 섬유, 유리 섬유, 아라미드 섬유, 케블라 섬유 및 이들의 혼합물로 이루어진 군으로부터 선택되는 섬유를 균일한 사이즈로 컷팅하는 단계; 상기 컷팅된 섬유에 공기 공급부를 통하여 공기를 분사하고, 상기 분사된 공기와 함께 상기 컷팅된 섬유를 웹 형성부로 이동시키는 단계; 및 상기 이동된 섬유 및 공기 중 공기는 상기 웹 형성부의 하부에 위치한 공기 유출구로 유출되며, 섬유는 상기 웹 형성부 내에 위치한 목적하는 웹 형상의 메쉬망에 적층되어 웹을 형성하는 단계를 포함한다.

RANDOM MAT AND MOLDING OF FIBER-REINFORCED COMPOSITE MATERIAL

분산제, 이를 포함하는 탄소 섬유 웹 및 이를 포함하는 탄소 섬유 강화 복합 재료 조성물

... 본 발명은 분산제, 이를 포함하는 탄소 섬유 웹 및 이를 포함하는 탄소 섬유 강화 복합 재료 조성물에 관한 것으로, 하기 화학식 1의 구조를 갖는 분산제, 이를 포함하는 탄소 섬유 웹 및 이를 포함하는 탄소 섬유 강화 복합 재료 조성물에 관한 것이다: [화학식 1] (상기 화학식 1에서 D는 OH 또는 NH2이고, E는 C, SO2이고, n은 600 내지 4000의 정수, m은 600 내지 4000의 정수이다.) ...

Heat generating clothing provided with carbon material felt heating device

Electromagnetic interference shielding carbon nanotube non-woven fabric and method of manufacturing the same

ANTIBACTERIAL HEATING AND WARMING NONWOVEN FABRIC AND MULTI-LAYERED FABRIC USING SAME

The present invention relates to an antibacterial heating and warming nonwoven fabric and a multi-layered fabric using the same. According to the present invention, an oxide iron compound and a carbon element contained in a fiber react with each other, and thus self-heating can be performed based on light irradiation and an antibacterial performance can be provided. The nonwoven fabric and the fabric according to the present invention generate heat by means of solar heat, and thus heating and warming can be realized even without any additional heating device, and are highly capable of keeping the warmth. In addition, the particles providing the heating effect are antibacterial, and thus antibacterial functions are provided for the nonwoven fabric and the fabric. Furthermore, the antibacterial heating particles are uniformly dispersed in a spinning solution and bonded to a fiber-constituting resin, and thus no separation attributable to an external force such as washing occurs from the fiber ...

MELTBLOWN MELAMINE MICROFIBER, MELAMINE FIBER WITH EXCELLENT HEAT RESISTANCE AND FLAME RESISTANCE INCLUDING SAME, AND PRODUCTION METHOD THEREOF

The present invention relates to a meltblown melamine microfiber, a melamine fiber with excellent heat resistance and flame resistance including the same, and a production method thereof. More specifically, provided is a thermoplastic melamine fiber which is obtained by undergoing meltblown melt spinning using a thermoplastic etherification melamine resin, satisfying the following requirements: at least 30% of a limited oxygen index (LOI), a fiber diameter less than or equal to 10 μm, and heat resistance at least 260°C. Moreover, provided is a production method thereof. COPYRIGHT KIPO 2017 (AA) RM fiber (BB) Carbon fiber (CC) Microfiber web ...

Apparatus for manufactuaring carbon fiber non-woven fabric, method for the same and car fiber non-woven fabric produced by them

Method for producing porous carbon fiber sheet, and method for producing porous carbon electrode

네트워크, 직물, 및 필름 내에서의 나노규모 요소의 배열 방법

... 나노튜브 직물 층 및 필름 내에서 나노튜브 요소를 배열하는 방법이 개시된다. 지향력을 나노튜브 직물 층 위에 적용하여 상기 직물 층이 나노튜브 요소의 질서화된 네트워크로 되게 한다. 즉, 나노튜브 요소의 네트워크는 그 측벽을 따라 모이며 실질적으로 균일한 방향으로 배향된다. 일부 실시양태에서, 이 지향력은 원통형 요소를 직물 층 위에서 롤링시킴으로써 적용된다. 다른 실시양태에서, 이 지향력은 러빙 재료를 나노튜브 직물 층의 표면 위에서 통과시킴으로써 적용된다. 다른 실시양태에서, 이 지향력은 폴리싱 재료를 소정 시간 동안 나노튜브 직물 층 위에서 진행시킴으로써 적용된다. 예시적인 롤링, 러빙 및 폴리싱 장치가 또한 개시된다.

난연성 부직포 및 이의 제조방법

... 본 발명은 난연성 부직포에 관한 것으로서, 보다 구체적으로 주 섬유, 그래핀 섬유 및 저융점 폴리에스터 섬유를 포함하되, 상기 주 섬유는 비스코스 섬유, 폴리에스터 섬유 및 폴리프로필렌 섬유로 이루어진 군으로부터 선택된 어느 하나이고, 상기 주 섬유 100 중량부 대비 상기 그래핀 섬유는 10 내지 40 중량부, 상기 저융점 폴리에스터 섬유는 5 내지 20 중량부로 함유하는 것을 특징으로 한다. 본 발명의 따른 난연성 부직포는 우수한 난연성을 가지고 있어 화재가 발생하더라도 쉽게 소각되지 않아 인명 및 재산 피해로 이어지는 것을 방지할 수 있는 효과가 있다. 또한, 본 발명에 따른 난연성 부직포는 우수한 보온성을 가지고 있어, 기존 보다 보온성이 강화된 침구류나 의류를 제조할 수 있는 효과가 있다.

GRAPHENE FIBER NON-WOVEN FABRIC AND PREPARATION METHOD THEREFOR

Disclosed are a graphene fiber non-woven fabric and a preparation method therefor. The non-woven fabric is obtained by filtering and depositing a dispersion of graphene short fibers through a filter net and drying and reducing same, so that the structural unit of the non-woven fabric is graphene short fibers that are stacked in a disorderly manner and bonded to each other, and the fibers are overlapped to form a large number of holes through which a liquid or a gas can pass. The graphene fiber non-woven fabric has a relatively good mechanical strength and tenacity, and is completely composed of graphene fibers, and does not contain a high-molecular material as a skeleton or an adhesive, etc. The electricity and heat conducting performances of a network structure formed by overlapping the graphene fibers and being reduced are excellent. The non-woven fabric can be used as a multifunctional high-performance fabric.

INTERIOR PANEL FOR VEHICLE

An interior component for a vehicle may include a nonwoven fabric impregnated with a resin. The nonwoven fabric and resin are consolidated into a solid sheet devoid of pockets. The interior component may exclude metal coated filler particles and lubricants. The method of making the interior component includes the steps of: forming a nonwoven fabric of a staple fiber and a resin, consolidating the nonwoven fabric and the resin into a solid sheet, and forming the solid sheet into the vehicle component. The vehicle may be an airplane, train, subway car, light rail car, bus, or automobile. The resin may be a polymer selected from the group consisting of polyphenylene sulfide, polyetherimide, polyaryletherketone, co-polymers thereof, and combinations thereof. 1. An interior component for a vehicle comprising: a nonwoven impregnated with a resin , said nonwoven and said resin being consolidated into a solid sheet devoid of pockets , and excluding metal coated filler particles and lubricants , said resin being a polymer selected from the group consisting of polyphenylene sulfide , polyetherimide , polyaryletherketone , co-polymers thereof , and combinations thereof.2. The interior component of wherein said nonwoven comprising staple fibers.3. The interior component of wherein said nonwoven being a wet laid nonwoven.4. The interior panel of wherein said nonwoven comprising carbon fibers.5. The interior component of wherein said carbon fibers being recycled carbon fibers being free of any pre-impregnation resin.6. The interior component of wherein said resin being selected from the group consisting of polyphenylene sulfide claim 1 , co-polymers thereof claim 1 , and combinations thereof.7. The interior component of wherein the weight ratio of nonwoven to resin being in a range of 1.0-1.5:1.0-1.5.8. The interior component of wherein the weight ratio of nonwoven to resin being in a range of 1.0:1.2-1.7.9. The interior component of wherein the vehicle being an airplane claim 1 ...

Process and system of debundling fiber tow for use in preform mats and molding compositions containing such fibers

A system for debundling fiber tow into chopped fibers is provided that has one or more reels of fiber tow, a cutting element configured to receive the fiber tow to form chopped fiber, and a tube with introduced gas flow configured to receive the chopped fiber. A moving belt is positioned under the tube to collect the chopped fiber. A dispenser is positioned along the moving belt for applying a binder or additive. A treatment chamber receives the treated chopped fiber. A process for debundling fiber tow into chopped fibers is provided that supplies one or more reels of fiber tow to a cutting system, drops the chopped fiber into a tube with introduced gas flow to debundle the chopped fiber with a vortex, collects the chopped fiber exiting the tube onto a moving belt, chemically treats the chopped fiber, and provides the chemically treated chopped to a treatment chamber.

Polymer-bonded fiber agglomerate, fiber-reinforced composite material and processes for producing the same

A polymer-bonded fiber agglomerate includes short fibers selected from carbon, ceramic materials, glasses, metals and organic polymers, and a polymeric bonding resin selected from synthetic resins and thermoplastics. The fiber agglomerates have an average length, measured in the fiber direction, of from 3 mm to 50 mm and an average thickness, measured perpendicularly to the fiber direction, of from 0.1 mm to 10 mm. At least 75% of all of the contained fibers have a length which is at least 90% and not more than 110% of the fiber agglomerate average length. A fiber-reinforced composite material having the fiber agglomerate and processes for the production thereof are also provided.

METHODS FOR FORMING COMPOSITE ARMOR PLATES USING ORDERED NANOTUBE FABRICS

A method for arranging nanotube elements within nanotube fabric layers and films is disclosed. A directional force is applied over a nanotube fabric layer to render the fabric layer into an ordered network of nanotube elements. That is, a network of nanotube elements drawn together along their sidewalls and substantially oriented in a uniform direction. In some embodiments this directional force is applied by rolling a cylindrical element over the fabric layer. In other embodiments this directional force is applied by passing a rubbing material over the surface of a nanotube fabric layer. In other embodiments this directional force is applied by running a polishing material over the nanotube fabric layer for a predetermined time. Exemplary rolling, rubbing, and polishing apparatuses are also disclosed.

Method and device for producing a tape for the preparation of moulded parts, tapes, textile flat structure and moulded part

Die Erfindung betrifft ein Verfahren zur Herstellung eines Bändchens (2) zur Herstellung von Formteilen, welche eine Polymermatrix und darin eingebettete Verstärkungsstapelfasern (3) aufweisen, wobei mindestens ein Faserband (FB) verwendet wird, welches die Verstärkungsstapelfasern (3) enthält. Erfindungsgemäß wird vorgeschlagen, dass das die Verstärkungsstapelfasern (3) enthaltende Faserband (FB) durch eine Formeinrichtung (10) geführt wird, so dass es ausgangsseitig der Formeinrichtung (10) in einen vorbestimmten Querschnitt (Q, Q') gebracht wird, und dass das in den vorbestimmten Querschnitt (Q, Q') gebrachte Faserband (FQ, FQ') mittels einer Fixiereinrichtung (11) fixiert wird, so dass der vorbestimmte Querschnitt (Q, Q') stabilisiert wird. Weiterhin betrifft die Erfindung ein Bändchen, ein textiles Flächengebilde und eine Vorrichtung.

PILE LAYER HAVING CURVED BUNDLES

Nonwoven fabric made of carbon fibres and thermoplastic fibres

Die Erfindung betrifft einen Vliesstoff umfassend Stapelfasern aus Carbonfasern mit einem Anteil von 80 bis 95 Gew.-%, bezogen auf das Gesamtgewicht des Vliesstoffs, und Stapelfasern aus thermoplastischen Fasern mit einem Anteil von 5 bis 20 Gew.-%, bezogen auf das Gesamtgewicht des Vliesstoffs, wobei die thermoplastischen Fasern Polyhydroxyether der allgemeinen Formel (I) enthalten. The invention relates to a nonwoven comprising staple fibers of carbon fibers in a proportion of 80 to 95 wt .-%, based on the total weight of the nonwoven fabric, and staple fibers of thermoplastic fibers in a proportion of 5 to 20 wt .-%, based on the total weight of Nonwoven fabric, wherein the thermoplastic fibers polyhydroxyether of the general formula (I) contain.

ENTANGLED CARBON-FIBER NONWOVEN PRODUCTION METHOD AND ASSEMBLY AND THREE-DIMENSIONAL-COMPONENT NONWOVEN PRODUCTION METHOD

Making a blank by reinforcing a fiber structure and/or bonding fiber structures together, and use in making composite material parts

A NOVEL PROCESS FOR THE PRODUCTION OF FIBRE REINFORCED THERMOPLASTIC COMPOSITES

PROCESS AND APPARATUS FOR PRODUCING CARBON FIBER MAT

Making a blank by reinforcing a fiber structure and/or bonding fiber structures together, and use in making composite material parts

MANUFACTURE OF CARBON FIBRE PREFORM

ON BASIS OF A FLEECE MANUFACTURE MAT COMMODITY

INTERMEDIATE COMPOUND MATERIAL, ITS MANUFACTURING PROCESSES AND ITS USE AS FORM MATERIAL

PITCH-BASED CARBON FIBERS AS WELL AS IT ABSTENTION MAT AND MOLDED ARTICLE

FIBER MAT AND PROCEDURE FOR THE PRODUCTION OF A FIBER MAT

NON--WOVEN PRODUCT OF TEXTILE AND PROCEDURE FOR ITS PRODUCTION

A fibre mat and a method of manufacturing a fibre mat

Curable composition

A curable composition, useful as a thermosetting binder, having a polycarboxy polymer or co-polymer, an emulsion polymer, and a multifunctional polyol.

A method of fabricating a friction part based on C/C composite material

A B S T R A C T The carbon-carbon composite material is obtained by densification with a pyrolytic carbon matrix originating 5 from a precursor in gaseous state at least in an external main phase of the matrix, and, at the end of the densification, final heat treatment is performed at a temperature lying in the range 14000C to 18000C.

CARBON FIBRE COMPOSITES

METALLISED CARBON FIBRES AND COMPOSITE MATERIALS CONTAINING THESE FIBRES

Metallized carbon fibres and composite materials containing these fibres. Carbon filaments and fibres and sheets manafactured from them which have excellent properties of adherence to plastics without loss of tensile strength are obtained when the carbon filaments and fibres are provided with a metal coating by a current-less process.

FORMALDEHYDE-FREE BINDER COMPOSITIONS AND METHODS OF MAKING THE BINDERS

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, an organic anhydride, an alkanol amine, and a nitrogen-containing salt of an inorganic acid. The binder compositions may be applied to fibers, such as glass fibers, to make formaldehyde-free, fiber-reinforced composites. Methods of making fiber- reinforced composites are also described, where such methods may include mixing an alkanol amine with an organic anhydride to make a first mixture, and adding a reducing sugar to the first mixture to make a second mixture. A nitrogen-containing salt may be added to the second mixture to make a binder composition, which may be applied to fibers to form a binder-fiber amalgam. The amalgam may be heated to cure the binder composition and form the fiber-reinforced composite.

METHOD FOR PRODUCING RING-SHAPED FIBROUS STRUCTURES, IN PARTICULAR FOR MAKING PARTS IN COMPOSITE MATERIAL

To make an annular fiber structure, a strip-shaped fabric (50) is used which is made up of two superposed unidirectional sheets, with the directions of the sheets forming opposite angles relative to the longitudinal direction of the strip, the two sheets being bonded together so as to form deformable elementary meshes, the fabric being wound while being deformed so as to transform it into a flat helix, the elementary meshes deforming in such a manner that variation in mass per unit area between the inside and outside diameters of the turns remains small, and the flat turns are pressed against one another.

METHOD AND INSTALLATION FOR MAKING CIRCULAR FIBER FRAMES

Carbon fiber composite sheet, use of the same as heat transferring article, and sheet for pitch-based carbon fiber mat for use therein

Composite carbon-carbon composite material and preparation method thereof

The invention discloses a composite carbon-carbon composite material and a preparation method thereof. The preparation method comprises the following steps: chopping carbon fiber filaments, needling to prepare carbon fiber mats, laying the mats layer by layer, laying carbon fiber cloth when laying the mats, and then integrally needling to prepare a carbon fiber preform; multiple layers of carbon fiber cloth are attached to the upper portion and the lower portion of the carbon fiber prefabricated body, a sandwich structure with the upper carbon fiber cloth, the lower carbon fiber cloth and the middle carbon fiber net tire prefabricated body is manufactured, sequentially and alternately laminated according to the product thickness, and finally overall needling forming is conducted. The prepared composite carbon-carbon composite material is reinforced by the carbon fiber cloth layer, a large number of carbon fibers are arranged in the vertical direction through needling, and the overall strength ...

Method and equipment for preparing high-purity and difficult-to-graphitize viscose-based carbon fiber felt

The invention discloses a preparation method and equipment of a high-purity and difficult-to-graphitize viscose-based carbon fiber felt. The high-purity and difficult-to-graphitize viscose-based carbon fiber felt has the impurity element content proportion of less than 50ppm, the single fiber strength of more than 120Mpa and the graphitization degree of less than 85% after being treated at 2650 DEG C; the invention further provides equipment for preparing the high-purity, high-strength and difficult-to-graphitize viscose-based carbon fiber felt. The equipment is composed of a felt inlet air seal section, a heat treatment section, a cooling section, a felt outlet air seal section and a cooling section. Metal impurities in viscose fibers are subjected to acid pickling removal, needling felt forming, catalyst dipping and drying, then catalytic dehydration is performed by adopting a micro-negative pressure inert atmosphere, and finally carbonization and graphitization are performed to obtain ...

NON-WOVEN ARTICLES CONTAINING A HEATRESISTANT BINDER

MANUFACTURE OF THREE-DIMENSIONAL FIBROUS ANNULAR STRUCTURES

Une première nappe fibreuse formée d'éléments sensiblement unidirectionnels est annexée (par dispositif 300) et nappée (par navette 322) alternativement dans un sens et dans l'autre entre des couronnes circulaires, externe (100) et interne (200) coaxiales, avec maintien au niveau desdites couronnes par picots (102, 202), et une deuxième nappe fibreuse formée d'éléments sensiblement unidirectionnels est déposée (par dispositif 400) en direction circonférentielle entre ladites couronnes externe et interne, les nappes annulaires transversale et circonférentielle sont liées entre elles par un dispositif de liaison (500) et sont entraînées en rotation autour de l'axe des couronnes externe et interne en réalisant une pluralité de tours complets pour obtenir une structure fibreuse annulaire épaisse ayant des couches formées par la nappe transversale qui alternent et sont liées avec des couches formées par la nappe circonférentielle.

Forming fibrous annular preform for e.g. carbon fiber brake discs, feeds fibers to surface of perforated suction cone rotating with turntable onto which fibers are deposited

Des fibres libres (10) sont déposées sur un plateau de support rotatif (30) au moyen d'un cône de dépôt creux (40) comprenant une paroi extérieure entourant une chambre et percée de multiples perforations. Les fibres sont amenées à la surface externe de la paroi perforée du cône (40) dans une zone d'alimentation du cône éloignée de la zone de dépôt sur le plateau (30), puis sont maintenues par établissement d'une dépression dans la chambre, produisant une aspiration à travers les perforations de la paroi du cône, pour être transportées par rotation du cône de la zone d'alimentation du cône à la zone de dépôt sur le plateau, et le maintien des fibres sur le cône est supprimé dans la zone de dépôt par interruption localisée de l'aspiration à travers les perforations de la paroi du cône au moins au niveau de cette zone, de sorte que les fibres transportées se déposent sur le plateau entraîné en rotation autour de son axe simultanément avec le cône. Les fibres déposées sur le plateau rotatif ...

A METHOD FOR PREPARING POLYALKYLENE RESIN FIBER CONTAINING CARBON NANOTUBE AND POLYALKYLENE RESIN FIBER PREPARED USING THE SAME

CARBON FELT, SURFACE TREATMENT METHOD OF SAME, VANADIUM-REDOX FLOW SECONDARY BATTERY HAVING SAME AND STACKED SECONDARY BATTERY

The present invention relates to a carbon felt, a surface treatment method of a carbon felt, a vanadium-redox flow secondary battery and a stacked secondary battery wherein a carbon felt surface is conducted with a corona discharge treatment and immersed in a liquid oxidizer and conducted with an ultrasonic treatment and then changes of functional group are induced and thereby, without using a heat treatment or using a catalyst containing a precious metal, it is possible to reduce a time required for the carbon felt surface treatment and possible to improve an affinity between an electrolyte and a carbon felt and in addition, it is possible to facilitate an oxidation and reduction of vanadium, thereby enhancing energy efficiency. COPYRIGHT KIPO 2016 (AA) Carbon felt not conducted with a surface treatment (BB) Carbon felt surface treated with a hybrid surface treatment ...

수평 분할 공정을 통한 박형 탄소섬유 부직포의 제조 방법

... 본 발명은 샘플 두께로 롤 제품을 수평 분할하기 위한 방법에 관한 것이며, 롤로부터 하나의 층 또는 연속적으로 복수의 층을 분할하기 위해 탄소섬유 부직포는 블레이드 구조물에 상대적으로 이동되며, 탄소섬유 부직포로부터 분할 후 상기 하나의 층 또는 상기 복수의 층은 연속해서 롤 형상으로 분리된다.

Solar Power Generation System

탄소 섬유 매트, 프리폼, 시트 재료 및 성형품

... 성형품으로 만든 경우에, 높은 역학 특성을 나타내고, 드로잉 등의 형상 부형성이 우수한, 탄소 섬유 매트를 제공하는 것을 과제로 한다. 불연속 탄소 섬유가 단사 형상으로 분산되고, 상기 불연속 탄소 섬유의 배향 방향이 랜덤하며, 수 평균 섬유 길이(Ln)가 1.5mm 이상 15mm 이하이고, 중앙 섬유 길이(Lc)의 ±20％의 범위에 있는 불연속 탄소 섬유의 수 비율(Pa)이 40％ 이상 99％ 이하인, 탄소 섬유 매트.

Carbon/carbon composite spring element and manufacturing method thereof

pano não tecido reforçado

TREATMENT AGENT, FLAME RESISTANT FIBER NONWOVEN FABRIC, CARBON FIBER NONWOVEN FABRIC, AND METHODS FOR PRODUCING SAME

The present invention provides a treatment agent for flame resistant fiber nonwoven fabrics or carbon fiber nonwoven fabrics, the treatment agent being characterized by containing a polyether compound obtained by addition of ethylene oxide and propylene oxide to an alcohol. The present invention also provides a flame resistant fiber nonwoven fabric or carbon fiber nonwoven fabric to which the treatment agent is adhered.

ENTANGLED CARBON-FIBER NONWOVEN PRODUCTION METHOD AND ASSEMBLY, THREE-DIMENSIONAL-COMPONENT NONWOVEN PRODUCTION METHOD, AND NONWOVEN FABRIC

The invention relates to an entangled carbon-fiber nonwoven production method for producing an entangled carbon-fiber nonwoven from carbon fibers up to a fiber length of 100 mm, comprising the following steps: supplying carbon fibers; loosening/combing apart and aerodynamically isolating the carbon fibers; aerodynamically calming the isolated carbon fibers; introducing the calmed and isolated carbon fibers into a vertically arranged air shaft (1), wherein the carbon fibers are introduced at the upper end (12) of the air shaft (1); mixing the carbon fibers within the air shaft (1) in a contactless manner by air whirling by means of a plurality of individual air flows; aerodynamically depositing the carbon fibers onto a moving mold or deposit surface (2) arranged below the air shaft (1), wherein the aerodynamic deposition is performed by means of suctioning below the mold or the deposit surface (2), wherein the air flows are varied and/or adjusted in the direction and/or intensity thereof ...

CARBON FIBER FELT MANUFACTURING METHOD AND METHOD FOR MANUFACTURING HEAT INSULATION MATERIAL USING SAME

The present invention relates to a carbon fiber felt manufacturing method and a method for manufacturing a heat insulation material using the same and, particularly, to a carbon fiber felt manufacturing method, which uses a carbon fiber mat orthogonal device for manufacturing, thereby making the surface density uniform and improving the orientation property of the carbon fiber, such that a carbon fiber felt is manufactured without separate fiber opening and carding processes, thereby providing more excellent process throughput and heat insulation performance than the prior art, and a method for manufacturing a heat insulation material using the same.

Nonwoven fabric or nonwoven composite material for shielding and absorbing electromagnetic wave

The present invention relates to a nonwoven fabric or nonwoven composite material comprising the nonwoven fabric for shielding and absorbing electromagnetic waves, manufactured by using a carbon fiber plated with metal (copper and nickel) produced in an electroless or electrolysis continuous process. The nonwoven fabric of the present invention is thinner and stronger than the conventional art, and has an advantage of being capable of controlling conductivity by controlling only the content of the carbon fiber plated with metal, without need for further addition of conductive powder.

Dispersion of carbon enhanced reinforcement fibers in aqueous or non-aqueous media

The general inventive concepts relate generally to carbon enhanced reinforcement (CER) fibers, and more particularly, to the controlled dispersion of CER fibers within aqueous or non-aqueous media. The general inventive concepts particularly relate to the controlled dispersion of CER fibers within aqueous or non-aqueous media for forming a nonwoven chopped CER fiber mat. The general inventive concepts also relate to the controlled dispersion of CNSs harvested from CER fibers within aqueous or non-aqueous media for forming a nonwoven CNS mat. Methods for dispersing the CNSs or the CER fibers in aqueous or non-aqueous media are also provided.

CARBON-BASED FIBER SHEET AND LITHIUM-SULFUR BATTERY INCLUDING SAME

The carbon-based fiber sheet for the lithium-sulfur battery according to the present invention is doped with a high concentration of nitrogen and thus plays a role of preventing diffusion by adsorbing lithium polysulfide eluted from a positive electrode during charging and discharging, thereby suppressing a shuttle reaction and thus improving capacity and lifecycle properties of the lithium-sulfur battery.

Gas diffusion electrode medium and method for producing the same, gas diffusion electrode, membrane electrode assembly, and polymer electrolyte fuel cell

In order to provide a gas diffusion electrode medium having high thermal conductivity despite having low density and excellent both in handleability and cell performance, provided is a gas diffusion electrode medium including carbon fiber felt including carbon fibers having an average fiber diameter of 5 to 20 μm, wherein at least a part of the carbon fibers that constitute the carbon fiber felt have a flat part in which, in a plane view of a surface of the carbon fiber felt, a maximum value of a fiber diameter is observed to be 10 to 50% larger than the average fiber diameter, and a frequency of the flat parts at the surface of the carbon fiber felt is 50 to 200/mm2.

Nonwoven fabric made of carbon fibres and thermoplastic fibres

SYSTEM AND METHOD FOR MULTIPLE SURFACE AIR JET NEEDLING

АРМИРУЮЩИЙ МАТЕРИАЛ С ВОЛОКНАМИ УВЕЛИЧЕННОГО ОБЪЕМА

Изобретение относится к армирующему материалу для термореактивных пластмасс. Армирующий материал состоит из соединенных в виде холста или прошивной структуры волокон, которые частично раздвинуты и увеличены в объеме посредством внедрения пустотелых шариков между элементарными нитями. Волокна увеличенного объема отличаются друг от друга своим материалом и/или степенью увеличения объема. Изобретение предусматривает способ изготовления армирующего материала. Изобретение позволяет получать легкие слоистые материалы повышенной прочности. 2 н. и 13 з.п. ф-лы.

Нетканый огнестойкий иглопробивной материал

Полезная модель относится к текстильной промышленности, а именно к нетканым иглопробивным материалам, которые могут использоваться в качестве средств индивидуальной защиты для работ, связанных с повышенными термическими рисками электрической дуги, а также тепла и пламени, в частности для боевой одежды пожарного (БОП). Нетканый огнестойкий иглопробивной материал для одежды содержит по массе 100% предварительно окисленных полиакрилонитрильных волокон. Указанный материал выполнен с линейной плотностью 0,17-0,19 текс, поверхностной плотностью от 60 г/мдо 300 г/ми толщиной от 2 мм до 8 мм. Иглопрокалывание материала выполнен с одной стороны сверху с глубиной прокалывания по всей толщине материала, причем плотность иглопрокалывания составляет 200-250 точек скрепления на смс регулярным распределением в материале точек скрепления относительно друг друга. Достигается технический результат - повышение суммарного теплового сопротивления нетканого огнестойкого иглопробивного материала при сохранении его огнестойкости. 1 ил., 1 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 198 784 U1 (51) МПК D04H 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК D04H 1/4242 (2020.02); D04H 1/43 (2020.02); D04H 1/4382 (2020.02) (21)(22) Заявка: 2020108214, 26.02.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 26.02.2020 (45) Опубликовано: 28.07.2020 Бюл. № 22 1 9 8 7 8 4 R U (54) НЕТКАНЫЙ ОГНЕСТОЙКИЙ ИГЛОПРОБИВНОЙ МАТЕРИАЛ (57) Реферат: Полезная модель относится к текстильной 0,19 текс, поверхностной плотностью от 60 г/м2 промышленности, а именно к нетканым до 300 г/м2 и толщиной от 2 мм до 8 мм. иглопробивным материалам, которые могут Иглопрокалывание материала выполнен с одной использоваться в качестве средств стороны сверху с глубиной прокалывания по всей индивидуальной защиты для работ, связанных с толщине материала, причем плотность повышенными термическими ...

Porous, carbon-containing preform and process for producing the same

There is provided a porous, carbon-containing preform, including a body (CL) of unidirectional carbon fiber fabrics (C 1 ), and a friction layer (FL) of randomly-arranged-carbon-fiber fabrics (F 1 ), combined with the body (CL) by a needle-punching operation. According to the present invention, it is by the needle-punching operation that the friction layer (FL) of the randomly-arranged-carbon fiber fabric (F 1 ) is formed on the body (CL) of the unidirectional carbon fiber fabric (C 1 ) and the friction layer (FL) of the randomly-arranged-carbon-fiber (F 1 ) is cross-linked to the body (CL) of the unidirectional carbon fiber fabric (C 1 ) in producing the porous, carbon-containing preform.

Noise-absorbent fabric for vehicle and method for manufacturing the same

Disclosed is a noise-absorbent fabric for a vehicle and a method for manufacturing the same. The noise-absorbent fabric for the vehicle includes a mono-layered nonwoven fabric and a binder. The mono-layered nonwoven fabric is formed of a super fiber, such as an aramid fiber, with a fineness of about 1 denier to about 15 deniers and a thickness of about 3 mm to about 20 mm. The binder is located in the same layer as the nonwoven fabric to maintain a three-dimensional shape of the nonwoven fabric.

PROTECTIVE ARMOR USING ORDERED NANOTUBE FABRICS

A method for arranging nanotube elements within nanotube fabric layers and films is disclosed. A directional force is applied over a nanotube fabric layer to render the fabric layer into an ordered network of nanotube elements. That is, a network of nanotube elements drawn together along their sidewalls and substantially oriented in a uniform direction. In some embodiments this directional force is applied by rolling a cylindrical element over the fabric layer. In other embodiments this directional force is applied by passing a rubbing material over the surface of a nanotube fabric layer. In other embodiments this directional force is applied by running a polishing material over the nanotube fabric layer for a predetermined time. Exemplary rolling, rubbing, and polishing apparatuses are also disclosed. 1. A composite armor plate , comprising:a plurality of material layers, wherein at least one of said material layers is an ordered nanotube fabric stack;wherein said at least one ordered nanotube fabric stack comprises at least one ordered nanotube fabric layer arranged along a selected direction;wherein at least one of said at least one material layer comprises steel, steel alloy, metallic alloy, fabric, ballistic fabric, ceramic plates, or shaped ceramic particles suspended in a matrix.2. The composite armor plate of wherein said at least one ordered nanotube fabric stack comprises a plurality of ordered nanotube fabric layers arranged at selected angles to adjacent ordered nanotube fabric layers.3. The composite armor plate of wherein said at least one ordered nanotube fabric stack comprises a plurality of ordered nanotube fabric layers arranged along alternating orthogonal directions with respect to adjacent ordered nanotube fabric layers.4. The composite armor plate of wherein said at least one ordered nanotube fabric stack comprises nanotubes and a matrix material.5. The composite armor plate of wherein at least one of said at least one ordered nanotube fabric ...

Columnar-Carbon and Graphene-Plate Lattice Composite

Disclosed herein are pristine graphene sheets with columns formed of fullerene nanotubes between the graphene sheets for use as body armor, semiconductor, battery anode, solar panels, heat sinks, structural concrete members, structural steel members, precast concrete structural members, bridges, highways, streets, skyscrapers, sidewalks, foundations, dams, industrial plants, canals, airports, structural composites, aircraft, military equipment, and civil infrastructure. 1. A material comprising:a first graphene sheet;a second graphene sheet; anda plurality of fullerenes positioned on the first graphene sheet, and wherein the second graphene sheet is positioned on top of the plurality of fullerenes.2. The material of claim 1 , wherein the plurality of fullerenes become carbon nanotubes.3. The material of claim 1 , wherein the plurality of fullerenes are positioned on the graphene sheets with a spacing from about 0.5 nm to about 2 nm from each other.4. The material of claim 3 , wherein the plurality of fullerenes are positioned on the graphene sheets with the spacing of at least 0.5 nm from each other.5. The material of claim 1 , wherein the plurality of fullerenes are positioned in a staggered pattern on the graphene sheets.6. The material of claim 1 , wherein the plurality of fullerenes are positioned in a uniform pattern on the graphene sheets.7. The material of claim 1 , wherein the plurality of fullerenes comprise a diameter claim 1 , and wherein the diameter is at least 0.70 nm.8. The material of claim 1 , further comprising a second plurality of fullerenes and a third graphene sheet claim 1 , wherein the second plurality of fullerenes are positioned on the second graphene sheet claim 1 , and wherein the third graphene sheet is positioned on top of the second plurality of fullerenes.9. The material of claim 1 , further comprising a plurality of graphene sheets and a second plurality of fullerenes claim 1 , wherein the second plurality of fullerenes are ...

Carbon Fiber Nonwoven Composite

Fiber-reinforced nonwoven composites having a wide variety of uses (e.g., leisure goods, aerospace, electronics, equipment, energy generation, mass transport, automotive parts, marine, construction, defense, sports and/or the like) are provided. The fiber-reinforced nonwoven composite includes a plurality of carbon fibers and a polymer matrix. The plurality of carbon fibers have an average fiber length from about 50 mm to about 125 mm. The fiber-reinforced nonwoven composite comprises a theoretical void volume from about 0% to about 10%. 114-. (canceled)15. A process for forming a fiber-reinforced nonwoven composite , comprising:opening a plurality of carbon fibers and a plurality of polymeric staple fibers, said plurality of carbon fibers having an average fiber length from about 50 mm to about 125 mm; blending the plurality of carbon fibers with the plurality of polymeric staple fibers to form a fiber blend;carding the fiber blend to form a one or more homogenous webs;forming a fiber-reinforced nonwoven from the one or more homogenous webs; andmolding the fiber-reinforced nonwoven to form a fiber-reinforced nonwoven composite, wherein the fiber-reinforced nonwoven composite comprises a theoretical void volume from about 0% to about 10%.16. The process according to claim 15 , further comprising:layering at least a first homogenous web from the one or more homogenous webs upon itself in a machine direction to form a parallel-laid batt; andfixing the parallel-laid batt to form the fiber-reinforced nonwoven.17. The process according to claim 16 , wherein fixing the parallel-laid batt comprises at least one of needle punching or thermal processing.18. The process according to claim 16 , wherein needle punching comprises utilizing a needle penetration depth from about 10 mm to about 75 mm claim 16 , a punch density from about 50 punches/cmto about 100 punches/cm claim 16 , or both.19. The process according to claim 16 , wherein thermal processing comprises thermal point ...

CARBON NANOTUBE SHEET STRUCTURE AND METHOD FOR ITS MAKING

A carbon nanotube (CNT) sheet containing CNTs, arranged is a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.5. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electro-thermal heating, electromagnetic wave absorption, lightning strike dissipation, EMI shielding, thermal interface pads, energy storage, and heat dissipation. 1. A process for manufacturing a carbon nanotube (CNT) sheet , comprising the steps of:i) applying a suspension of carbon nanotubes (CNTs) dispersed in a liquid onto a continuous, moving, porous carrier material;ii) drawing by vacuum or pressure the liquid of the aqueous suspension of the CNTs through the porous carrier material, and filtering a uniform dispersion of CNTs over the porous carrier material to form an entangled CNT structure;iii) optionally drying any residual liquid from the filtered CNT structure to form a CNT sheet over the porous carrier material; andiv) removing the CNT sheet from the porous carrier material.2. A continuous process for manufacturing a continuous composite CNT sheet , comprising the steps of:i) applying a continuous porous substrate layer to an upper side of continuous, moving porous carrier material;ii) applying an aqueous suspension of carbon nanotubes (CNTs) dispersed in a liquid on the porous substrate layer;iii) drawing by vacuum or pressure the liquid of the aqueous suspension of the CNTs through the porous substrate layer and the porous carrier material, and filtering a uniform dispersion of filtered CNTs over the porous substrate layer to form an entangled ...

CARBON FIBER NONWOVEN FABRIC

A carbon fiber nonwoven fabric in which carbon fibers are sized with an aliphatic compound having a plurality of epoxy groups or a specific aromatic compound; the number average x of carbon fibers forming a carbon fiber bundle, in which the number of carbon fibers forming the carbon fiber bundle is 90 or more, is 90 to 1,000 fibers per bundle among the carbon fiber bundles in the carbon fiber nonwoven fabric; and the standard deviation σ of the number of carbon fibers forming the carbon fiber bundle is 50 to 500. 116.-. (canceled)17. A carbon fiber nonwoven fabric including carbon fibers , wherein said carbon fibers are sized with an aliphatic compound having a plurality of epoxy groups , a number average x of carbon fibers forming a carbon fiber bundle , in which a number of carbon fibers forming a carbon fiber bundle is 90 or more , is 90 to 1 ,000 fibers per bundle among carbon fiber bundles in said carbon fiber nonwoven fabric , and a standard deviation σ of the number of carbon fibers forming said carbon fiber bundle is 50 to 500.18. A carbon fiber nonwoven fabric including carbon fibers , wherein said carbon fibers are sized with an aromatic compound having a plurality of epoxy groups in which a number of atoms present between an epoxy group and an aromatic ring is 6 or more , a number average x of carbon fibers forming a carbon fiber bundle , in which a number of carbon fibers forming a carbon fiber bundle is 90 or more , is 90 to 1 ,000 fibers per bundle among carbon fiber bundles in said carbon fiber nonwoven fabric , and a standard deviation σ of the number of carbon fibers forming said carbon fiber bundle is 50 to 500.19. The carbon fiber nonwoven fabric according to claim 17 , wherein said compound having a plurality of epoxy groups is a compound having an epoxy group at each end of the longest atomic chain.20. The carbon fiber nonwoven fabric according to claim 19 , wherein said compound having a plurality of epoxy groups is a compound having an epoxy ...

PROCESS FOR TRANSFORMING CARBON FIBRES, SYNTHETIC FIBRES AND VEGETABLE FIBRES INTO NON-WOVEN FABRIC

Process for transforming synthetic and vegetable fibres into a non-woven fabric of the type which provides the following sequence of processing steps: flock opening step, during which fibrous materials of different shapes and sizes are transformed into fibre flocks of different lengths; drawing and treatment step of the material selected in the previous step; cutting and trimming step: once the drawing and treatment step of the material has been completed, the non-woven fabric is subject to longitudinal cutting and trimming, to make a series of rolls, usually two or three, for final use, characterised in that, after the opening step, the flocks are transferred to a condenser, where the long-fibre flocks are separated from the short-fibre flocks, by means of a perforated mesh screen. 2) Process as in characterized in that the long-fibre flocks derived from the opening of said non-woven fabric are subjected to a moistening process claim 1 , said process being carried out by means of a nebulization system installed on machinery used in the first two processing steps.3) Process as in characterized in that the drawing of said separate flocks in said condenser further comprises the step of subsequent carding to form a homogeneous web.4) Process as in characterized in that said carding is carried out using at most six working rollers claim 3 , suitable for creating a web with a thickness ranging between 0.1 mm and 0.5 mm.5) Process as in claim 3 , characterized in that a web laying step is further provided claim 3 , with the overlap of various webs deriving from the carding by means of a belt-type web laying machine.6) Process as in characterized in that the long-fibre flocks derived from the opening of said non-woven fabric are subjected to a moistening process that takes place between the opening step and the web laying step.7) Process as in characterized in that claim 5 , after the web laying step claim 5 , a needlefelting step is further provided claim 5 , carried out ...

Method and Apparatus for Fabricating Fibers and Microstructures from Disparate Molar Mass Precursors

The disclosed methods and apparatus improve the fabrication of solid fibers and microstructures. In many embodiments, the fabrication is from gaseous, solid, semi-solid, liquid, critical, and supercritical mixtures using one or more low molar mass precursor(s), in combination with one or more high molar mass precursor(s). The methods and systems generally employ the thermal diffusion/Soret effect to concentrate the low molar mass precursor at a reaction zone, where the presence of the high molar mass precursor contributes to this concentration, and may also contribute to the reaction and insulate the reaction zone, thereby achieving higher fiber growth rates and/or reduced energy/heat expenditures together with reduced homogeneous nucleation. In some embodiments, the invention also relates to the permanent or semi-permanent recording and/or reading of information on or within fabricated fibers and microstructures. In some embodiments, the invention also relates to the fabrication of certain functionally-shaped fibers and microstructures. In some embodiments, the invention may also utilize laser beam profiling to enhance fiber and microstructure fabrication.

Selective infiltration of nanofiber yarns

Techniques are described for infiltrating a nanofiber yarn with an infiltration material and removing a surface layer of the infiltration material on at least a portion of the infiltrated nanofiber yarn. This enables an infiltration method by which the infiltration material is selectively disposed within an interior of a nanofiber yarn and not disposed on an exterior surface of at least a portion of a nanofiber yarn. Electrical connection can be established by mechanically connecting an electrode (e.g., a conductive clamp or fitting) directly to the exposed surface of the nanofiber yarn.

PROCESS AND SYSTEM OF DEBUNDLING FIBER TOW FOR USE IN PREFORM MATS AND MOLDING COMPOSITIONS CONTAINING SUCH FIBERS

A system for debundling fiber tow into chopped fibers is provided that has one or more reels of fiber tow, a cutting element configured to receive the fiber tow to form chopped fiber, and a tube with introduced gas flow configured to receive the chopped fiber. A moving belt is positioned under the tube to collect the chopped fiber. A dispenser is positioned along the moving belt for applying a binder or additive. A treatment chamber receives the treated chopped fiber. A process for debundling fiber tow into chopped fibers is provided that supplies one or more reels of fiber tow to a cutting system, drops the chopped fiber into a tube with introduced gas flow to debundle the chopped fiber with a vortex, collects the chopped fiber exiting the tube onto a moving belt, chemically treats the chopped fiber, and provides the chemically treated chopped to a treatment chamber. 1. A system for debundling fiber tow into chopped fibers comprising:one or more reels of fiber tow;a cutting element configured to receive the fiber tow to form chopped fiber from the one or more reels of fiber tow;a tube with an introduced gas flow configured to receive the chopped fiber and to create a debundling vortex;a moving belt positioned under the tube to collect the chopped fiber exiting the tube under gravity;a dispenser positioned along the moving belt for applying a binder or an additive to the chopped fiber; anda treatment chamber that receives the treated chopped fiber.2. The system of wherein the one or more reels of fiber tow are at least one of glass; carbon; polyimides; polyesters; or polyamides claim 1 , and combinations thereof.3. (canceled)4. The system of wherein the tube further comprises a plasma generator.5. The system of wherein the dispenser includes the binder.6. (canceled)7. (canceled)8. The system of further comprising a particulate reservoir in fluid communication with the gas flow.9. The system of further comprising a rail angled inward relative to a direction of ...

HONEYCOMB STRUCTURE MADE OF A NON-WOVEN MADE OF RECYCLED CARBON FIBERS

A honeycomb structure comprising carbon-fiber non-woven, sandwich structure comprising the said honeycomb structure, and process for the production of the said honeycomb structure. 1. A honeycomb structure comprising carbon-fiber non-woven.2. The honeycomb structure according to claim 1 , wherein the honeycomb structure is composed predominantly of carbon-fiber non-woven.3. The honeycomb structure according to claim 1 , wherein the carbon-fiber non-woven comprises reclaimed carbon fibers.4. The honeycomb structure according to claim 1 , wherein a length of the fibers of the carbon-fiber non-woven is from 6 to 50 mm.5. The honeycomb structure according to claim 1 , wherein the fibers of the carbon-fiber non-woven are predominantly unoriented.6. The honeycomb structure according to claim 5 , wherein the fibers of the carbon-fiber non-woven have a random orientation.7. The honeycomb structure according to claim 1 , wherein the honeycomb structure is impregnated with synthetic resin.8. The honeycomb structure according to claim 1 , wherein the honeycomb structure additionally comprises fire-retardant additives.9. The honeycomb structure according to claim 1 , wherein the honeycomb structure additionally comprises unidirectional fibers.10. The honeycomb structure according to claim 9 , wherein a ratio by mass of carbon-fiber non-woven to unidirectional fibers is greater than 10:7.11. A sandwich structure comprising a honeycomb structure comprising carbon-fiber non-woven.12. The sandwich structure according to moreover comprising two substantially parallel-arranged outer layers claim 11 , between which the honeycomb structure is arranged claim 11 , wherein the walls of the honeycomb structure are arranged so as to be substantially orthogonal to the outer layers.13. The sandwich structure according to claim 11 , wherein the outer layers are composed of at least one of GRP claim 11 , CFRP and metal.14. A process for the production of honeycomb structures comprising carbon- ...

MULTIPURPOSE FUNCTIONAL NONWOVEN FIBER, AND METHOD FOR MANUFACTURING SAME

The present invention relates to a multipurpose functional nonwoven fabric, and to a multipurpose functional nonwoven fabric which is manufactured by performing a pretreatment process on carbonized fiber cotton, and stacking the pretreated carbonized fiber on natural cotton, mixing the pretreated carbonized fiber cotton with the natural cotton and scutching the mixed cotton, or introducing the natural cotton and stacking the natural cotton on an intermediate layer of the pretreated carbonized fiber, and a method for manufacturing same. Web formation and stacking at a cutting machine can be easily performed by performing the pretreatment process on the carbonized fiber. Excellent heat resistance and conductivity is obtained by stacking the carbonized fiber cotton on natural cotton, mixing the carbonized fiber cotton with the natural cotton, scutching the mixed carbonized fiber cotton and the natural cotton and stacking the scutched cotton, or introducing natural cotton into an intermediate layer of the carbonized fiber cotton, stacking the natural cotton on the intermediate layer of the carbonized fiber cotton, and subjecting the stacked cotton to needle punching. Since a surface temperature of the nonwoven fabric can be lowered and the loss of heat can be reduced through dissipation and dispersion of heat, thermal retention and insulation properties of the entangled natural cotton can be enhanced, and carbonization prevention and incombustiblization of the natural cotton can be achieved. Also, the multipurpose functional nonwoven fabric can be manufactured at a low production cost and exhibit environmentally friendly characteristics, and a waste material can be recycled. 1. A multipurpose functional nonwoven fabric manufactured using the method comprising:(1) preparing carbonized fiber cotton by unraveling a carbonized fiber and mixing the carbonized fiber and raw cotton at a mixing ratio of 7:3 to 8:2;(2) injecting the carbonized fiber cotton into a cutting machine ...

Composite Materials and Related Methods for Manufacturing Composite Materials

The present disclosure relates to composites. One composite may include a resin and oxidized polyacrylonitrile fibers. The oxidized polyacrylonitrile fibers may be provided as a nonwoven fabric. An additional composite may include a resin and material scraps respectively including carbon fibers. The material scraps may be positioned to at least partially overlap one another and define a substantially continuous layer. The material scraps may be provided as a fabric and/or a plurality of loose fibers. 1. A method of manufacturing a composite product , the method comprising:placing material scraps into a mold such that the material scraps partially overlap one another to define a first layer, the material scraps including composite chips having cured resin;adding resin to the mold including the material scraps;allowing the resin to harden in the mold such that the material scraps and the resin form the composite product.2. The method of manufacturing according to claim 1 , wherein placing the material scraps into the mold includes the material scraps including a woven fabric claim 1 , a nonwoven fabric claim 1 , or loose fibers.3. The method of manufacturing according to claim 2 , wherein placing the material scraps into the mold include forming a second layer of the woven fabric claim 2 , the nonwoven fabric claim 2 , or the loose fibers.4. The method of manufacturing according to claim 2 , further comprising collecting the material scraps from selvage material.5. The method of manufacturing according to claim 4 , wherein placing the material scraps includes placing the material scraps into the mold without further processing including cutting claim 4 , separating claim 4 , heated claim 4 , or chemically treated after being collected from selvage materials.6. The method of manufacturing according to claim 1 , wherein placing the material scraps into the mold include the material scraps having a dimension greater than an inch.7. The method of manufacturing according ...

CARBON NANOTUBE ARRAY, MATERIAL, ELECTRONIC DEVICE, PROCESS FOR PRODUCING CARBON NANOTUBE ARRAY, AND PROCESS FOR PRODUCING FIELD EFFECT TRANSISTOR

In order to obtain a carbon nanotube array including no m-CNTs through simple steps using a mechanism that is different from thermocapillary flow, there are provided a process for producing a carbon nanotube array including (A) a step of preparing a carbon nanotube array in which m-CNTs and s-CNTs are horizontally aligned; (B) a step of forming an organic layer on the carbon nanotube array; (C) a step of applying voltage to the carbon nanotube array in a long axis direction of the carbon nanotubes constituting the carbon nanotube array in the air; and (D) a step of removing the organic layer, and a carbon nanotube array obtained by the process. 1. A carbon nanotube array including no metallic carbon nanotubes ,wherein semiconducting carbon nanotubes are horizontally aligned at a density of 1 line/μm or more.2. The carbon nanotube array according to claim 1 ,wherein a density of the semiconducting carbon nanotubes is 1,000 lines/μm or less.3. The carbon nanotube array according to claim 1 ,wherein a length of each semiconducting carbon nanotube of the carbon nanotube array is 10 μm or more.4. The carbon nanotube array according to claim 1 ,wherein in a case of forming a field effect transistor (FET) with the carbon nanotube array, an ON/OFF ratio of the FET is 10,000 or more.5. A material including the carbon nanotube array according to .6. An electronic device including the carbon nanotube array according to .7. A process for producing a carbon nanotube array comprising:(A) a step of preparing a carbon nanotube array in which metallic carbon nanotubes and semiconducting carbon nanotubes are horizontally aligned;(B) a step of forming an organic layer on the carbon nanotube array;(C) a step of applying voltage to the horizontally aligned carbon nanotube array in a long axis direction of the carbon nanotubes constituting the carbon nanotube array in the air; and(D) a step of removing the organic layer.8. The process for producing a carbon nanotube array according to ...

FIBER-REINFORCED RESIN FORMING MATERIAL AND METHOD OF PRODUCING SAME

A fiber-reinforced resin forming material contains at least a matrix resin and bundled aggregates of discontinuous reinforcing fibers, wherein: the bundled aggregates include both reinforcing fiber aggregates A having a shape formed by cutting after having performed a splitting treatment to completely split the strands of continuous reinforcing fibers into a plurality of bundles of strands, and reinforcing fiber aggregates B having a shape that includes unsplit parts where splitting treatment was inadequate and/or reinforcing fiber aggregates B having a shape not subjected to splitting treatment; and both the ratio of the weight of the reinforcing fiber aggregates B with respect to the total weight of reinforcing fibers in the fiber-reinforced resin forming material, and the ratio of the total weight of the reinforcing fiber aggregates B and the reinforcing fiber aggregates B with respect to the total weight of reinforcing fibers in the fiber-reinforced resin forming material, are 50-95%. 17-. (canceled)8. A fiber-reinforced resin forming material containing at least a bundled aggregate of discontinuous reinforcing fibers and a matrix resin , whereinthe bundled aggregate of reinforcing fibers includes both a reinforcing fiber aggregate A formed by cutting a strand of continuous reinforcing fibers after a splitting treatment is performed to completely split the strand into a plurality of bundles, and{'b': '1', 'a reinforcing fiber aggregate B having a shape of an unsplit part to which the splitting treatment is performed insufficiently and/or'}{'b': '2', 'a reinforcing fiber aggregate B having a shape to which the splitting treatment is not performed, wherein'}{'b': 1', '1', '2, 'both a ratio (i) of weight of the reinforcing fiber aggregate B with respect to a total weight of reinforcing fibers in the fiber-reinforced resin forming material, and a ratio (ii) of a total weight of the reinforcing fiber aggregate B and the reinforcing fiber aggregate B with respect to ...

METHODS TO FABRICATE NEEDLED PREFORMS WITH RANDOMLY ORIENTED SHORT LENGTH CARBON FIBERS

A method and apparatus for fabricating a short length carbon fiber preform with a through thickness reinforcement is disclosed herein. The starting media for fabricating a net shape (e.g., annular disc) may meet specific requirements including a sufficient fiber volume and a binding mechanism compatible with the needle-punching process. 1. A platen comprising:a shaped heat delivery assembly, wherein the shaped heat delivery assembly is configured to deliver heat to a blend of a plurality of short length carbon fiber bundles and a binder material to form a partially melted net shape preform; anda pressure delivery surface configured to apply pressure to the partially melted net shape preform, wherein the partially melted net shape preform is subsequently needled.2. The platen of claim 1 , wherein the partially melted net shape preform is at least one of an annular disc shape and a section of an annular shaped disc.3. The platen of claim 1 , wherein the platen is configured to move in a direction normal to a conveying surface and in a direction of the conveying of the conveying surface. This application is a divisional of U.S. Ser. No. 14/230,246, filed Mar. 31, 2014, entitled “METHODS TO FABRICATE NEEDLED PREFORMS WITH RANDOMLY ORIENTED SHORT LENGTH CARBON FIBERS,” which is hereby incorporated by reference in its entirety.This disclosure generally relates to textile preparation, and more particularly, to systems and methods associated with short carbon fibers preforming.Carbon/carbon (“C/C”) parts are employed in various industries. An exemplary use for C/C parts includes using the parts as friction disks such as aircraft brake disks, race car brake disks, clutch disks, and the like. C/C brake disks are especially useful in such applications because of the superior high temperature characteristics of C/C material. In particular, the C/C material used in C/C parts is a good conductor of heat, and thus, is able to dissipate heat away from the braking surfaces that is ...

Transmission V-Belt and Manufacturing Method Therefor

Provided is a power transmission V-belt containing: a rubber layer; a cord buried in the rubber layer along the belt circumferential direction; and at least one reinforcing layer buried in the rubber layer, in which the reinforcing layer contains reinforcing fiber filaments having the same length as a belt width; and contains no fibers intersecting with the belt width direction, or contains the fibers intersecting with the belt width direction in a weight per unit area of 30% or less of the reinforcing fiber filaments, in which the reinforcing layer has a structure in which the reinforcing fiber filaments are in a non-twisted state, are oriented in the belt width direction, and are spread and bonded in a sheet shape, and in which the reinforcing layer has a thickness of 0.05 mm to 0.5 mm. 1. A power transmission V-belt having a cross section orthogonal to a belt circumferential direction being a V shape , and having a frictional power transmission surface on each side in a belt width direction ,wherein the power transmission V-belt comprises:a rubber layer formed of a rubber composition;a cord buried in the rubber layer along the belt circumferential direction; andat least one reinforcing layer buried in the rubber layer,wherein the reinforcing layer comprises a large number of reinforcing fiber filaments having the same length as a belt width; and contains no fibers that intersect with the belt width direction, or contains the fibers that intersect with the belt width direction in a weight per unit area of 30% or less of the reinforcing fiber filaments,wherein the reinforcing layer has a structure in which the reinforcing fiber filaments are in a non-twisted state, are oriented in the belt width direction, and are spread and bonded in a sheet shape, andwherein the reinforcing layer has a thickness of 0.05mm to 0.5 mm.2. The power transmission V-belt according to claim 1 ,wherein the reinforcing fiber filaments have a tensile modulus of elasticity of 200 to 600 GPa. ...

CONDUCTIVE FIBROUS MATERIALS

There is provided a conductive fibrous material comprising a plurality of carbonaceous fibers, wherein each carbonaceous fiber is fused to at least one other fiber. The carbonaceous fibers may be fused at fiber-to-fiber contact points by a polymer. The process of making the conductive fibrous material comprises mixing a phenolic polymer with a second polymer to form a polymer solution, preparing phenolic fibers having nano- or micro-scale diameters by electrospinning the polymer solution, and subsequent carbonization of the obtained phenolic fibers, thereby generating carbonaceous fibers, wherein each carbonaceous fiber is fused to at least one other fiber. The conductive fibrous material may be useful in electrode materials for energy storage devices. 1. A conductive fibrous material comprising a plurality of carbonaceous fibers , wherein each carbonaceous fiber is fused to at least one other fiber.2. The material according to claim 1 , wherein the carbonaceous fibers are fused at fiber-to-fiber contact points by a polymer.3. The material according to claim 2 , wherein the polymer is a low-melting point polymer.4. The material according to any one of or claim 2 , wherein the polymer has a melting point of below 200° C.5. The material according to any one of to claim 2 , wherein the polymer has a molecular weight from about 100 claim 2 ,000 to 1 claim 2 ,000 claim 2 ,000.6. The material according to any one of to claim 2 , wherein the polymer is selected from the group consisting of homo-polyether claim 2 , co-polyether claim 2 , homo-polyester claim 2 , co-polyester claim 2 , co-polyether-polyester claim 2 , and polymer blends thereof.7. The material according to claim 6 , wherein the homo-or co-polyether is selected from the group consisting of homo-(polyalkylene oxide) claim 6 , co-(polyalkylene oxide) and poloxamer.8. The material according to claim 7 , wherein the homo-or co-polyether is selected from the group consisting of homo-(polylactone) claim 7 , co-( ...

Conductive porous material, polymer electrolyte fuel cell, and method of manufacturing conductive porous material

The object of the present invention is to provide a conductive porous material that has a large specific surface area, that is not easily damaged by pressure, and that can be applied to a variety of applications; a polymer electrolyte fuel cell, and a method of manufacturing a conductive porous material. The conductive porous material is one which is an aggregate of fibrous substances comprising first conductive materials, and second conductive materials that connect between the first conductive materials, and its specific surface area is 100 m 2 /g or more, and its thickness retention rate after pressing at 2 MPa is 60% or more. Such a conductive porous material can be manufactured by spinning a spinning solution containing a first conductive material and a carbonizable organic material to form a precursor fiber porous material in which precursor fibers are aggregated, and carbonizing the carbonizable organic material to convert it into a second conductive material.

PRIMARY BASE FABRIC FOR TUFTED CARPET, AND METHOD OF MANUFACTURING SAME

A primary base fabric for a tufted carpet includes a first non-woven web and a second non-woven web laminated on each other. The first non-woven web is constituted with a first constituent fiber formed with a first thermoplastic resin and containing carbon. The second non-woven web is constituted with a second constituent fiber formed with a second thermoplastic resin and having a carbon content lower than the carbon content of the first constituent fiber or containing no carbon. The primary base fabric is a product prepared by combining the first non-woven web and the second non-woven web through an emboss processing. 1. A primary base fabric for a tufted carpet comprising a first non-woven web and a second non-woven web laminated on each other ,wherein the first non-woven web is constituted with a first constituent fiber formed with a first thermoplastic resin and containing carbon;the second non-woven web is constituted with a second constituent fiber formed with a second thermoplastic resin and having a carbon content lower than the carbon content of the first constituent fiber or containing no carbon; andthe primary base fabric is a product prepared by unifying the first non-woven web and the second non-woven web through an emboss processing.2. The primary base fabric for a tufted carpet according to claim 1 ,wherein in each of the first and second constituent fibers, a low-melting point resin having a lower melting point than the melting of the resin of the core is arranged around the resin of the core; andin the primary base fabric, the constituent fibers are mutually bonded through the melting and the solidification of the low-melting point resin in emboss portions in emboss processing.3. The primary base fabric for a tufted carpet according to claim 1 , wherein the peel strength between the first non-woven web and the second non-woven web is 2.0 N/50 mm width or more.4. The primary base fabric for a tufted carpet according to claim 1 , wherein the surface ...

Bamboo-inspired nanostructure design for flexible, foldable and twistable energy storage devices

A flexible all-solid state supercapacitor is provided that includes a first electrode and a second electrode, and a flexible nanofiber web, where the flexible nanofiber web connects the first electrode to the second electrode, where the flexible nanofiber web includes a plurality of flexible nanofibers, where the flexible nanofiber includes a hierarchal structure of macropores, mesopores and micropores through a cross section of the flexible nanofiber, where the mesopores and the micropores form a graded pore structure, where the macropores are periodically distributed along the flexible nanaofiber and within the graded pore structure. 1) A flexible all-solid state supercapacitor , comprising:a) a first electrode and a second electrode; andb) a flexible nanofiber web, wherein said flexible nanofiber web connects said first electrode to said second electrode, wherein said flexible nanofiber web comprises a plurality of flexible nanofibers, wherein said flexible nanofiber comprises a hierarchal structure of macropores, mesopores and micropores through a cross section of said flexible nanofiber, wherein said mesopores and said micropores form a graded pore structure, wherein said macropores are periodically distributed along said flexible nanaofiber and within said graded pore structure.2) The flexible all-solid state supercapacitor of claim 1 , wherein said macropores have a diameter in a range of 50 nm to 200 nm.3) The flexible all-solid state supercapacitor of claim 1 , wherein said mesopores have a diameter in a range of 2 nm to 50 nm.4) The flexible all-solid state supercapacitor of claim 1 , wherein said micropores have a diameter in a range of up to 2 nm.5) A method of fabricating flexible nanofibers claim 1 , comprising:a) electrospinning a precursor of polyacrylonitrile (PAN) and tetraethylorthosilicate (TEOS) in dimethylformamide (DMF) to form a TEOS/PAN web of nanofibers;{'sub': '2', 'b) thermal treating said TEOS/PAN web of nanofibers in an H/Ar or an inert ...

METHOD FOR PRODUCING THIN CARBON FIBER NONWOVENS BY A HORIZONTAL SPLITTING PROCESS

A method for horizontally splitting rolled-up web material in the sample thickness. A carbon fiber nonwoven is moved in relation to a knife structure in order to split off a layer or successively several layers from a roll web. The one layer or several layers are continuously removed in the form of a roll from the carbon fiber nonwoven after the splitting process. 1. A method of producing a layer made of carbon fiber non-woven fabric , the method comprising:providing a starting material being a carbon fiber non-woven fabric;subjecting the starting material to a horizontal splitting process in a sample thickness, by moving the carbon fiber non-woven fabric relative to a blade construction and separating one layer or a plurality of layers consecutively from the carbon fiber non-woven fabric; andcontinuously removing the one layer or the plurality of layers from the carbon fiber non-woven fabric following the splitting process.2. The method according to claim 1 , wherein a thickness of the carbon fiber non-woven fabric to be split is 3 mm to 50 mm.3. The method according to claim 1 , wherein a thickness of a separated layer is at least 0.2 mm.4. The method according to claim 1 , wherein said carbon fiber non-woven fabric is based on a material selected from the group consisting of viscose claim 1 , PAN claim 1 , pitch or lignin.5. The method according to claim 1 , wherein the blade construction is selected from the group consisting of milling cutter cutting tools claim 1 , band knives claim 1 , double band knives having two adjacent single band knives claim 1 , each of which is sharpened on one side claim 1 , and rigid claim 1 , ruler-shaped splitting knives having an oscillating drive.6. The method according to claim 1 , which comprises separating and removing the one or more layers simultaneously and with constant tensile force.7. A layer of carbon fiber non-woven fabric produced by the method according to .8. The layer of carbon fiber non-woven fabric according to ...

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 process for producing a random mat comprising a reinforcing-fiber mat and a thermoplastic resin , the process comprising:widening a reinforcing fiber strand; and the following steps (1) to (4):(1) cutting off reinforcing fibers from the reinforcing fiber strand;(2) introducing the cut reinforcing fibers into a tube, conveying the reinforcing fibers in the tube with air and spraying the reinforcing fibers from the tube;(3) fixing the sprayed reinforcing fibers to obtain a reinforcing-fiber mat; and(4) adding a thermoplastic resin to the reinforcing-fiber mat to obtain a random mat, whereinthe reinforcing fibers have an average fiber length of 3 to 100 mm;the weight-average fiber thickness of the reinforcing fibers is 0.01 mm or more and 0.30 mm or less;fiber axes of the reinforcing fibers are substantially parallel to a plane of the random mat;the reinforcing fibers are randomly dispersed in the plane of the random mat; andthe reinforcing fibers satisfy the following i) to iii): {'br': None, '0 mm Подробнее

Systems and methods for forming a composite structure

The present disclosure provides systems and methods for forming a composite structure comprising rotating a base layer of an apparatus for forming the composite structure about an axis of rotation, transferring carbon short fibers from a first vibratory feed ramp onto the base layer in order to form a plurality of fibrous layers in the composite structure, and vibrating the first vibratory feed ramp during the transferring the carbon short fibers. The base layer may comprise an annular shape.

GAS DIFFUSION ELECTRODE SUBSTRATE AND METHOD FOR MANUFACTURING SAME, GAS DIFFUSION ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL

An object of the present invention is to provide a gas diffusion electrode substrate that can facilitate both the supply of a reaction gas to a gas diffusion electrode and discharge of water as a reaction product. The present invention provides a gas diffusion electrode substrate including a carbon fiber nonwoven fabric having 30/cmto 5000/cmdiscontinuous protrusions dispersedly formed on at least one surface thereof, and a water repellent imparted to the carbon fiber nonwoven fabric. 1. A gas diffusion electrode substrate , comprising a carbon fiber nonwoven fabric having 30/cmto 5000/cmdiscontinuous protrusions dispersedly formed on at least one surface thereof , and a water repellent imparted to the carbon fiber nonwoven fabric.2. The gas diffusion electrode substrate according to claim 1 , wherein the discontinuous protrusions have a height of 5 to 250 μm.3. The gas diffusion electrode substrate according to claim 1 , wherein the discontinuous protrusions are dispersedly formed in isotropic and equally spaced dots.4. The gas diffusion electrode substrate according to claim 3 , wherein the plurality of discontinuous protrusions have an arrangement pitch of 1 mm or less.5. The gas diffusion electrode substrate according to claim 1 , wherein the discontinuous protrusions each have a diameter of a minimum circumscribed circle of 1 cm or less.6. The gas diffusion electrode substrate according to claim 1 , wherein the discontinuous protrusions present in a unit area have a top surface perimeter of 0.1 to 20 km/m.7. The gas diffusion electrode substrate according to claim 1 , having claim 1 , in plan view claim 1 , no broken carbon fibers observed on wall surfaces of the discontinuous protrusions.8. The gas diffusion electrode substrate according to claim 1 , wherein at least part of carbon fibers that constitute wall surfaces of the discontinuous protrusions are oriented in a height direction of the discontinuous protrusions.9. The gas diffusion electrode substrate ...

MULTIPURPOSE FUNCTIONAL NONWOVEN FIBER, AND METHOD FOR MANUFACTURING SAME

The present invention relates to a multipurpose functional nonwoven fabric, and more particularly, to a multipurpose functional nonwoven fabric which is manufactured by performing a pretreatment process on carbonized fiber cotton, and stacking the pretreated carbonized fiber on natural cotton, mixing the pretreated carbonized fiber cotton with the natural cotton and scutching the mixed cotton, or introducing the natural cotton and stacking the natural cotton on an intermediate layer of the pretreated carbonized fiber, and a method for manufacturing same. Web formation and stacking at a cutting machine can be easily performed by performing the pretreatment process on the carbonized fiber. Also, excellent heat resistance and conductivity can be obtained by stacking the carbonized fiber cotton on natural cotton, mixing the carbonized fiber cotton with the natural cotton, scutching the mixed carbonized fiber cotton and the natural cotton and stacking the scutched cotton, or introducing natural cotton into an intermediate layer of the carbonized fiber cotton, stacking the natural cotton on the intermediate layer of the carbonized fiber cotton, and subjecting the stacked cotton to needle punching. Since a surface temperature of the nonwoven fabric can be lowered and the loss of heat can be reduced through dissipation and dispersion of heat, thermal retention and insulation properties of the entangled natural cotton can be enhanced, and carbonization prevention and incombustiblization of the natural cotton can be achieved. Also, the multipurpose functional nonwoven fabric can be manufactured at a low production cost and exhibit environmentally friendly characteristics, and a waste material can be recycled. 1. A method for manufacturing a multipurpose functional nonwoven fabric , comprising:(1) preparing carbonized fiber cotton by unraveling a carbonized fiber and mixing the carbonized fiber and raw cotton at a mixing ratio of 7:3 to 8:2;(2) injecting the carbonized fiber ...

METHOD OF COUPLING AND ALIGNING CARBON NANOTUBES IN A NONWOVEN SHEET AND ALIGNED SHEET FORMED THEREFROM

Carbon nanotubes are coupled and aligned in a non-woven sheet as measured by failure strain by drawing the sheet with a coupling agent such as triphenylmethane and preferable a liquid diluent such as chlorosulfonic acid or sulfuric acid. The formed non-woven sheet has a full width at half maximum as determined by wide angle X-ray diffraction of not greater than 20°.

GAS DIFFUSION ELECTRODE BASE MATERIAL, METHOD FOR PRODUCING SAME, GAS DIFFUSION ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY AND SOLID POLYMER FUEL CELL

The purpose of the present invention is to improve water drainage performance of a gas diffusion electrode including a carbon fiber nonwoven fabric. The present invention provides a gas diffusion electrode base material essentially consisting of a carbon fiber nonwoven fabric, wherein the carbon fiber nonwoven fabric has an in-plane basis weight pattern in which high basis weight regions having a relatively high basis weight and low basis weight regions having a relatively low basis weight are arranged, and the carbon fiber nonwoven fabric has on at least one surface an uneven pattern in which recesses and projections are arranged, the uneven pattern being formed independently of the basis weight pattern. 1. A gas diffusion electrode base material essentially consisting of a carbon fiber nonwoven fabric , wherein the carbon fiber nonwoven fabric has an in-plane basis weight pattern in which high basis weight regions having a relatively high basis weight and low basis weight regions having a relatively low basis weight are arranged , and the carbon fiber nonwoven fabric has on at least one surface an uneven pattern in which recesses and projections are arranged , the uneven pattern being formed independently of the basis weight pattern.2. The gas diffusion electrode base material according to claim 1 , wherein in the uneven pattern claim 1 , the recess is formed over a boundary line between the low basis weight region and the high basis weight region claim 1 , and 10% or more of the total length of the boundary line between the low basis weight region and the high basis weight region overlaps the recess in plan view.3. The gas diffusion electrode base material according to claim 1 , wherein at least one of the basis weight pattern and the uneven pattern is a regular pattern.4. The gas diffusion electrode base material according to claim 3 , wherein the basis weight pattern and the uneven pattern are regular patterns.5. The gas diffusion electrode base material ...

Method of preparing carbon fibers

A method of producing carbon fiber, yarns, and nonwoven carbon fiber cloths, includes forming suitable polymeric precursor microfibers and/or nanofibers using a centrifugal spinning process and decomposing at least a portion of the polymeric precursor fibers to form carbon fibers. The decomposition may be accomplished by treating the polymeric precursor fibers with acid vapor from an aqueous acid solution at a temperature of less than 250° C.

BLENDED FIBER MAT FORMATION FOR STRUCTURAL APPLICATIONS

A process and system are provided for introducing a blend of chopped and dispersed fibers on an automated production line amenable for inclusion in molding compositions as a blended fiber mat for structural applications. The blend of fibers are simultaneously supplied to an automated cutting machine illustratively including a rotary blade chopper disposed above a vortex supporting chamber. The blend of chopped fibers and binder form a chopped mat. The chopped mat has a veil mat placed on either side, and is consolidated with the veil mat using heated rollers maintained at the softening temperature of thermoplastic binder, with consolidated mats being amenable to being stored in rolls or as flat sheets. A charge pattern is made using the consolidated mat, and the charge pattern can be compression molded in a mold maintained at a temperature lower than the melting point of the thermoplastic fibers. 1. A system for forming a blended fiber mat comprising:two or more reels of different types of fiber tow;a vortex chamber configured as a tube, said tube housing a cutting system configured to receive the two or more types of fiber tow to form chopped fiber from the two or more reels of fiber tow;a pressurized gas flow directed into to said vortex chamber having both rotary and vertical flow components that form a vortex within said vortex chamber, said cutting system is disposed above the vortex; anda moving belt positioned under the tube to collect the chopped fiber exiting the tube under gravity.2. The system of wherein the two or more reels of different fiber tow types are glass claim 1 , carbon claim 1 , polyimides claim 1 , polyaramaides claim 1 , polyesters claim 1 , and polyamides claim 1 , and combinations thereof.3. The system of further comprising a dispenser positioned along the moving belt for applying a binder to the chopped fiber.4. The system of further comprising a treatment chamber that receives the chopped fiber coated with the binder.5. The system of ...

COMPOSITES AND ARTICLES MADE FROM NONWOVEN STRUCTURES

The present invention generally relates to composites and articles made from nonwoven structures. One aspect of the invention is generally directed to nonwoven structures which are heated and/or pressed to form a substantially rigid article. In some cases, the nonwoven structure may be heated to temperatures greater than the glass transition temperature but less than the melting temperature of a polymer within the nonwoven structure. Such articles may exhibit creep of the polymer around other fibers in the nonwoven structure, but without any evidence of melting and/or flow. In addition, in some embodiments, such articles may have relatively large void volumes, or exhibit properties such as low flammability, smoke resistance, or acoustic insulation. Other aspects of the present invention are generally directed to systems and methods for making such articles, methods of use of such articles, kits comprising such articles, etc. 149-. (canceled)50. An article comprising fibers and polyetherimide disposed on at least some of the fibers , wherein the polyetherimide exhibits crystallinity without showing evidence of flow.51. The article of claim 50 , wherein the fibers comprise poly(paraphenylene terephthalamide).52. The article of claim 50 , wherein the fibers comprise polymeric fibers.53. The article of claim 50 , wherein the fibers comprise glass fibers.54. The article of claim 50 , wherein the fibers comprise fiberglass.55. The article of claim 50 , wherein the fibers comprise carbon fibers.56. The article of claim 50 , wherein the article has an average void volume of at least about 50%.57. The article of claim 50 , wherein the article has a density of at least about 0.1 g/cm.58. The article of claim 50 , wherein the article has an average pore size of between about 5 micrometers and about 50 micrometers as determined by microscopy.59. The article of claim 50 , wherein the article comprises a nonwoven structure.60. The article of claim 50 , wherein at least some of ...

METHOD FOR PRODUCING CARBON NANOTUBE WEB, METHOD FOR PRODUCING CARBON NANOTUBE COLLECTED PRODUCT, AND APPARATUS FOR PRODUCING CARBON NANOTUBE WEB

A method for producing a carbon nanotube web includes a step of preparing a carbon nanotube array disposed on a substrate, the carbon nanotube array including a plurality of carbon nanotubes vertically aligned relative to the substrate; and a step of drawing a carbon nanotube web from the carbon nanotube array, the carbon nanotube web including a plurality of carbon nanotube single yarns arranged in parallel in a direction intersecting the direction carbon nanotube single yarns extend, and the carbon nanotube single yarns including a plurality of continuously connected carbon nanotubes. In the step of drawing a carbon nanotube web, the drawing position of the carbon nanotube web from the carbon nanotube array is kept at the same position in the drawing direction of the carbon nanotube web. 1. A method for producing a carbon nanotube web , the method comprising the steps of:a step of preparing a carbon nanotube array disposed on a substrate, the carbon nanotube array comprising a plurality of carbon nanotubes vertically aligned relative to the substrate, and the carbon nanotube web comprising a plurality of carbon nanotube single yarns arranged in parallel in a direction intersecting the direction carbon nanotube single yarns extend, and', 'the carbon nanotube single yarns comprising a plurality of continuously connected carbon nanotubes;, 'a step of drawing a carbon nanotube web from the carbon nanotube array,'}wherein in the step of drawing a carbon nanotube web,the drawing position of the carbon nanotube web from the carbon nanotube array is kept at the same position in the drawing direction of the carbon nanotube web.2. The method for producing a carbon nanotube web according to claim 1 ,wherein in the step of drawing a carbon nanotube web,the carbon nanotube array is successively separated from the substrate and the drawing position moves toward the upstream in the drawing direction relative to the substrate along with the drawing of the carbon nanotube web, ...

CARBON NANOTUBE FIBERS/FILAMENTS FORMULATED FROM METAL NANOPARTICLE CATALYST AND CARBON SOURCE

Disclosed is a method of: providing a mixture of a polymer or a resin and a transition metal compound, producing a fiber from the mixture, and heating the fiber under conditions effective to form a carbon nanotube-containing carbonaceous fiber. The polymer or resin is an aromatic polymer or a precursor thereof and the mixture is a neat mixture or is combined with a solvent. Also disclosed are a carbonaceous fiber or carbonaceous nanofiber sheet having at least 15 wt. % carbon nanotubes, a fiber or nanofiber sheet having the a polymer or a resin and the transition metal compound, and a fiber or nanofiber sheet having an aromatic polymer and metal nanoparticles. 1. A nanofiber sheet comprising at least 15 wt. % carbon nanotubes.2. The nanofiber sheet of claim 1 , wherein nanofiber sheet further comprises metal nanoparticles.3. A nanofiber sheet comprising a mixture of:a polymer or a resin; and 'wherein the polymer or resin is an aromatic polymer or a precursor thereof.', 'a transition metal compound;'}4. The nanofiber sheet of claim 3 , wherein the polymer or resin is a phthalonitrile polymer claim 3 , polyacrylonitrile claim 3 , coal pitches claim 3 , petroleum pitches claim 3 , or pitch resins.5. The nanofiber sheet of claim 3 , wherein the transition metal compound is octacarbonyldicobalt claim 3 , 1-(ferrocenylethynyl)-3-(phenylethynyl)benzene claim 3 , diironnonacarbonyl claim 3 , or bis(1 claim 3 ,5-cyclooctodiene)nickel(0).6. A nanofiber sheet comprising:an aromatic polymer; andmetal nanoparticles.7. The nanofiber sheet of claim 6 , wherein the aromatic polymer is a phthalonitrile polymer or a thermo-oxidative stabilized polyacrylonitrile claim 6 , coal pitches claim 6 , petroleum pitches claim 6 , or pitch resins. This application is a divisional application of U.S. Pat. No. 9,926,649, issued on Mar. 27, 2018, which is a divisional application of U.S. Pat. No. 9,255,003, issued on Feb. 9, 2016, which is a continuation application of U.S. patent application Ser ...

ELECTROSPINNING APPARATUS

An electrospinning apparatus according to an embodiment is configured to deposit a fiber on a collector or a member. The electrospinning apparatus includes a first nozzle head provided on one side of the collector or the member, and a second nozzle head provided on the side opposite to the first nozzle head with the collector or the member interposed. The first nozzle head and the second nozzle head are at a section where the collector or the member moves in a direction tilted with respect to a horizontal direction. 1. An electrospinning apparatus configured to deposit a fiber on a collector or a member , the electrospinning apparatus comprising:a first nozzle head provided on one side of the collector or the member; anda second nozzle head provided on a side opposite to the first nozzle head with the collector or the member interposed,the first nozzle head and the second nozzle head being at a section where the collector or the member moves in a direction tilted with respect to a horizontal direction.2. The electrospinning apparatus according to claim 1 , further comprising: a controller is configured to control depositing of the fiber by the first nozzle head and depositing of the fiber by the second nozzle head claim 1 ,the controller causes the fiber to be deposited by the second nozzle head when causing the fiber to be deposited by the first nozzle head.3. The electrospinning apparatus according to claim 1 , wherein the second nozzle head opposes the first nozzle head with the collector or the member interposed.4. The electrospinning apparatus according to claim 1 , wherein the second nozzle head is provided at a position separated from the first nozzle head in a movement direction of the collector or the member.5. The electrospinning apparatus according to claim 1 , wherein a plurality of the first nozzle heads is provided to be arranged in a movement direction of the collector or the member.6. The electrospinning apparatus according to claim 5 , wherein one ...

ENTANGLED CARBON-FIBER NONWOVEN PRODUCTION METHOD AND ASSEMBLY, THREE-DIMENSIONAL-COMPONENT NONWOVEN PRODUCTION METHOD, AND NONWOVEN FABRIC

An entangled carbon-fiber non-woven production method for producing an entangled carbon-fiber non-woven fabric from carbon fibers up to a fiber length of 100 mm, with the following steps: supplying carbon fibers; loosening/combing apart and aerodynamically isolating the carbon fibers; aerodynamically calming the isolated carbon fibers; introducing the calmed and isolated carbon fibers into a vertically arranged air shaft (), wherein the carbon fibers are introduced at the upper end () of the air shaft (); mixing the carbon fibers within the air shaft () in a contactless manner by air whirling by means of a plurality of individual air flows; aerodynamically depositing the carbon fibers onto a moving mold or deposit surface () arranged below the air shaft (), wherein the aerodynamic deposition is performed by means of suctioning below the mold or the deposit surface (), wherein the air flows are varied and/or adjusted in the direction and/or intensity thereof and the air flows are produced and varied by means of one or more rotating and horizontally arranged air nozzles (). The invention further relates to an entangled carbon-fiber non-woven production device, to a three-dimensional-component non-woven production method, and to a non-woven fabric 1. A process for producing a carbon fiber non-woven fabric from carbon fibers up to a fiber length of 100 mm ,comprising the steps of:I. supplying carbon fibers;II. loosening/combing and aerodynamic separating the carbon fibers;III. aerodynamic calming the separated carbon fibers;{'b': 1', '12', '1, 'IV. introducing the calmed and isolated carbon fibers into a vertically arranged air shaft (), wherein the introduction takes place at the upper end () of the air shaft ();'}{'b': '1', 'V. contactless mixing the carbon fibers within the air shaft () by means of a plurality of individual air swirling air streams;'}{'b': 2', '1', '2, 'VI. aerodynamic depositing the carbon fibers onto a moveable mold or a laying surface () arranged ...

CARBON NANOTUBE SHEET STRUCTURE AND METHOD FOR ITS MAKING

A carbon nanotube (CNT) sheet containing CNTs having a median length of at least 0.05 mm and an aspect ratio of at least 2,500; L arranged b a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.0. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the •filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electromagnetic wave absorption, lightning strike dissipation. EMI shielding, thermal interface pads, energy storage, and heat dissipation. 1. A process for manufacturing a carbon nanotube (CNT) sheet , comprising the steps of:i) moving a continuous conveying belt along a path that traverses a pooling region and a vacuum box;ii) applying a continuous porous carrier material to an upper side of the continuous conveying belt;iii) applying an aqueous suspension of carbon nanotubes (CNTs) dispersed in a liquid on the porous carrier material, the dispersed CNTs having a median length of at least 0.05 mm and an aspect ratio of at least 2,500:1;iv) forming a continuous pool of the aqueous suspension of the CNTs over and across the width of the continuous porous carrier material in the pooling region, the continuous pool of the aqueous suspension of the CNTs having a uniform thickness sufficient to prevent puddling upon the continuous porous carrier material;v) advancing the porous carrier material and the continuous pool of the aqueous suspension of the CNTs over the vacuum box;vi) drawing by vacuum the liquid of the aqueous suspension of the CNTs through the porous carrier material, and filtering a uniform dispersion of filtered CNTs over the porous carrier material to form a filtered ...

PRODUCING DEVICE AND PRODUCING METHOD FOR CHOPPED FIBER BUNDLES, PRODUCING DEVICE AND PRODUCING METHOD FOR FIBER-REINFORCED RESIN FORMING MATERIALS, CUTTING BLADE FOR CARBON FIBER BUNDLES, AND ROTARY CUTTER FOR CARBON FIBER BUNDLES

One mode of the invention relates to a producing device for chopped fiber bundles comprising: cutting means including a cutting blade for cutting long fiber bundles, guide means for restricting the travel direction of the fiber bundles to be supplied to the cutting means, and widening means provided between the cutting means and the guide means and for widening the fiber bundles; and a producing method for chopped fiber bundles comprising: widening fiber bundles by widening means provided between a cutting means and guide means while restricting the travel direction of the long fiber bundles to be supplied to the cutting means by the guide means, and obtaining chopped fiber bundles by cutting the fiber bundles with the cutting means including a cutting blade. 1. A producing device for chopped fiber bundles comprising:cutting means including a cutting blade for cutting long fiber bundles;guide means for restricting the travel direction of the fiber bundles to be supplied to the cutting means; andwidening means provided between the cutting means and the guide means and for widening the fiber bundles.2. The producing device for chopped fiber bundles according to claim 1 , further comprising:one or both of first oscillating means for oscillating the guide means in a direction where the travel of the fiber bundles is restricted and second oscillating means for oscillating the cutting means in the direction where the travel of the fiber bundles is restricted.3. The producing device for chopped fiber bundles according to claim 2 ,wherein the first oscillating means oscillates the widening means so that the widening means is synchronized with the guide means.4. A producing method for chopped fiber bundles comprising:widening fiber bundles by widening means provided between the following cutting means and guide means while restricting the travel direction of the long fiber bundles to be supplied to the following cutting means by the guide means; andobtaining chopped fiber ...

Systems and Methods for Formation and Harvesting of Nanofibrous Materials

A system that receives nanomaterials, forms nanofibrous materials therefrom, and collects these nanofibrous materials for subsequent applications. The system is coupled to a chamber that generates nanomaterials, typically carbon nanotubes produced from chemical vapor deposition, and includes a mechanism for spinning the nanotubes into yarns or tows. Alternatively, the system includes a mechanism for forming non-woven sheets from the nanotubes. The system also includes components for collecting the formed nanofibrous materials. Methods for forming and collecting the nanofibrous materials are also provided. 1. A non-woven sheet material comprising:a first layer of nanotubes arranged in an intermingled and overlapping fashion with one another;a second layer of nanotubes arranged in an intermingled and overlapping fashion with one another, the second layer of nanotubes being deposited on top of the first layer of nanotubes such that at least some of the nanotubes of the second layer overlap with at least some of the nanotubes of the first layer; anda bond at contact sites between adjacent overlapping nanotubes in the first and second layers, and at contact sites between the nanotubes of the first layer that overlap with the nanotubes of the second layer;wherein the bond interconnects the individual nanotubes of each layer, and the layers to one another, to form a substantially planar body with sufficient structural integrity to be handled as a sheet absent support form a substrate or binder.2. A sheet as set forth in claim 1 , wherein the planar body can be substantially square or rectangular in shape.3. A sheet as set forth in claim 1 , wherein the nanotubes include a catalytic nanoparticle of ferromagnetic material.4. A sheet as set forth in claim 1 , wherein the ferromagnetic material includes one of Fe claim 1 , Co claim 1 , Ni claim 1 , an alloy thereof claim 1 , a combination thereof claim 1 , or related materials.5. A sheet as set forth in claim 1 , wherein the ...

NONWOVEN CARBON FIBER FABRIC, PROCESS FOR PRODUCING NONWOVEN CARBON FIBER FABRIC, AND POLYMER ELECTROLYTE MEMBRANE FUEL CELL

An object of the present invention is to provide a nonwoven carbon fiber fabric suitable as a gas diffusion electrode, which achieves good water discharge performance and maintains high gas diffusibility even when electricity is generated in humid conditions. The present invention provides a nonwoven carbon fiber fabric which has ridges on at least one surface thereof and which is provided with a water repellent, the ridges having a pitch that is less than 500 μm. 1. A nonwoven carbon fiber fabric which comprises ridges on at least one surface thereof and which is provided with a water repellent , the ridges having a pitch that is less than 500 μm.2. The nonwoven carbon fiber fabric according to claim 1 , wherein a ratio of ridge area is 0.1 to 0.9.3. The nonwoven carbon fiber fabric according to claim 1 , wherein a contact angle of water drop on the surface that has the ridges thereon is 100 degrees or more.4. The nonwoven carbon fiber fabric according to claim 1 , wherein the water repellent is localized at the ridges.5. A polymer electrolyte fuel cell comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a gas diffusion electrode formed from the nonwoven carbon fiber fabric according to ; and'}a separator that has channels in the form of parallel grooves,wherein the surface of the gas diffusion electrode which has the ridges thereon is in contact with a surface of the separator which has the channels therein.6. The polymer electrolyte fuel cell according to claim 5 , wherein the separator is stacked on the gas diffusion electrode in a manner such that a direction in which the channels extend is substantially parallel to a direction in which the ridges on the gas diffusion electrode extend.7. The polymer electrolyte fuel cell according to claim 5 , wherein the separator is stacked on the gas diffusion electrode in a manner such that a direction in which the channels extend intersects a direction in which the ridges on the gas diffusion electrode extend.8. ...

NANOTUBE APPLICATION DEPOSITION SYSTEM FOR FORMING LOW DEFECT NANOTUBE FABRICS

The present disclosure provides methods for removing defects nanotube application solutions and providing low defect, highly uniform nanotube fabrics. In one aspect, a degassing process is performed on a suspension of nanotubes to remove air bubbles present in the solution. In another aspect, a continuous flow centrifugation (CFC) process is used to remove small scale defects from the solution. In another aspect, a depth filter is used to remove large scale defects from the solution. According to the present disclosure, these three methods can be used alone or combined to realize a low defect nanotube application solutions and fabrics. 1. A system for forming uniform , low defect nanotube fabrics comprising:a solution intake element;at least one degassing element;at least one defect reduction process element; anda solution deposition element;wherein said system is configured such that a nanotube application solution supplied through said solution intake element is first processed through a series combination of said at least one degassing element and said at least one defect reduction process element, and then processed through said solution deposition element to provide a purified, degassed nanotube application solution.2. The system of wherein said system is configured such that a nanotube application solution remains in a degassed state as it is processed through said at least one defect reduction process element and said solution deposition element.3. The system of wherein said system is configured to process a nanotube application solution through said at least one defect reduction process element immediately subsequent to being processed through said at least one degassing element.4. The system of wherein said system is a point of use nanotube fabric deposition system.5. The system of wherein said system is capable of continuously processing a nanotube application solution through said solution intake element claim 4 , said at least one degassing element claim ...

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 method of manufacturing a random mat that includes carbon fibers and a matrix resin , the method comprises:cutting carbon fiber strands;introducing cut carbon fibers in a tube and blowing air to the carbon fibers to open carbon fiber bundles; andforming a random mat of the carbon fibers and a matrix resinwhereinthe 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

PRESSURIZED REDUCTION OF CNT RESISTIVITY

A method for reducing the resistivity of a carbon nanotube nonwoven sheet includes providing a carbon nanotube nonwoven sheet comprising a plurality of carbon nanotubes and applying pressure to the carbon nanotube nonwoven sheet to reduce air voids between carbon nanotubes within the carbon nanotube nonwoven sheet. 1. A method for reducing the resistivity of a carbon nanotube nonwoven sheet , the method comprising:providing a carbon nanotube nonwoven sheet comprising a plurality of carbon nanotubes; andapplying pressure to the carbon nanotube nonwoven sheet to reduce air voids between carbon nanotubes within the carbon nanotube nonwoven sheet; andheating the carbon nanotube nonwoven sheet,wherein the carbon nanotube sheet contains no adhesives or resins and the steps of applying pressure to the carbon nanotube nonwoven sheet and heating the carbon nanotube nonwoven sheet occur simultaneously such that the carbon nanotube nonwoven sheet has at least 45% decreased resistivity following application of pressure and heat compared to the resistivity of the carbon nanotube nonwoven sheet before application of pressure and heat.2. The method of claim 1 , wherein the step of applying pressure to the carbon nanotube nonwoven sheet is performed using a machine press.3. The method of claim 2 , further comprising:layering a foil on a side of the carbon nanotube nonwoven sheet prior to applying pressure to the carbon nanotube nonwoven sheet.4. The method of claim 3 , wherein the foil comprises aluminum and polytetrafluoroethylene.5. The method of claim 1 , wherein the step of applying pressure to the carbon nanotube nonwoven sheet is performed using a set of nip rollers.6. The method of claim 1 , wherein the step of applying pressure to the carbon nanotube nonwoven sheet is performed using an autoclave.7. The method of claim 1 , wherein the carbon nanotube nonwoven sheet comprises a plurality of carbon nanotubes held together by Van der Waals forces claim 1 , and wherein applying ...

DISSIPATION OF STATIC ELECTRICITY

A sheet material for use in static dissipation applications comprises conductive staple fibres and a cross-linked binder system. Laminar structures comprising an insulating substrate and a layer of the sheet material are also disclosed as are static electricity dissipation assemblies comprising the laminar structure associated with an electrical conductor in contact with the sheet material layer of the laminar structure, the conductor also being for connection to an earthing point. The laminar structures and static dissipation assemblies may be used for constructing tanks, reservoirs and/or pipes that hold or convey flammable liquids in aircraft. 1. A sheet material for use in static dissipation applications , said sheet material comprising conductive staple fibres and a cross-linked binder system that bonds said fibres together , and having a sheet resistance of 50 ohms/sq to 50×10ohms/sq.2. A sheet material as claimed in having a sheet resistance of 1×10ohms/sq to 3×10ohms/sq claim 1 , preferably 1×10ohms/sq to 1×10ohms/sq claim 1 , more preferably 1×10ohms/sq to 1×10ohms/sq and more preferably 1×10ohms/sq to 5×10ohms/sq.3. (canceled)4. A sheet material as claimed in which comprises an admixture of non-conducting staple fibres and the conducting staple fibre.5. A sheet material as claimed in where the sheet material comprises up to 95% by weight claim 4 , and preferably comprises 20% to 80% by weight claim 4 , more preferably claim 4 , 40 to 60% by weight claim 4 , of the conductive staple fibres based on the total weight of the conductive and non-conductive staple fibres.67-. (canceled)8. A sheet material as claimed in wherein the non-conductive fibres are glass fibres.9. A sheet material as claimed in having a basis weight of 1 to 500 g m claim 1 , preferably 5 to 150 g m claim 1 , more preferably 5 to 100 g m claim 1 , and even more preferably 5 to 40 g m.1012-. (canceled)13. A sheet material as claimed in wherein the staple fibres have a length in the range of ...

CARBON FIBER RANDOM MAT AND CARBON FIBER COMPOSITE MATERIAL

A random mat material including fiber bundles, said fiber bundles including fibers having an average fiber length of 5 to 100 mm, and having an average number N of fibers in the fiber bundle that satisfies: 115.-. (canceled)17. The random mat according to claim 16 , wherein the standard deviation SDof the number of fibers in a fiber bundle satisfies:{'br': None, 'sub': 'N', '2,000 Подробнее

Non-woven graphene fiber fabric and preparing method thereof

A non-woven graphene fiber fabric and a preparing method therefor is provided. The non-woven fabric is formed by disorderly piled graphene fibers which are bonded with each other. The fibers are overlapped into a permeable network for passing through light, liquid or gas. The non-woven graphene fiber fabric is completely formed by graphene fibers without polymeric materials serving as skeleton or adhesive, and has good mechanical strength and flexibility. After reduction, the network structure built by the graphene fibers has excellent electrical and thermal conductivity and can be utilized as a high-performance fabric with multiple functions. 1. A non-woven graphene fiber fabric , wherein the non-woven graphene fiber fabric is formed by overlapping graphene fibers with a diameter at a range of 1-1000 μm to form a network structure; wherein the graphene fibers on nodes of the network are merged with each other; and the graphene fibers are formed by highly aligned graphene sheets along the axial direction.2. The non-woven graphene fiber fabric claim 1 , as recited in claim 1 , wherein a diameter of the graphene fiber is at a range of 1-100 μm.3. A method for preparing the non-woven graphene fiber fabric as recited in claim 1 , comprising following steps of:(1) preparing graphene oxide dispersion with a concentration at a range of 1-15 mg/mL, wherein a solvent of the graphene oxide dispersion is N, N′-dimethyl formamide, and the graphene oxide dispersion serves as a spinning solution;(2) extruding the spinning solution at a velocity range of 0.01-10 mL/min through a spinneret with a diameter at a range of 10-1000 μm to enter a coagulation bath, soaking in the coagulation bath for 30-200 minutes to solidify the fibers, collecting the fibers by vacuum filtration, and make them staying at a room temperature for 5-30 hours and vacuum drying at 60° C. to obtain a film formed by graphene oxide fibers;(3) dispersing the film obtained in the step (2) in a mixture of water and ...

Method for Manufacturing a Sensor Element or an Active Component of a Sensor Element

A method for manufacturing a composite material, a sensor element or an active component of a sensor element. The sensor element is applied in a field device of automation technology. At least two materials with different physical and chemical properties are predetermined depending on a functionality of the sensor element or the active component of the sensor element. An outer shape, into which the at least two materials should be formed, is predetermined. The outer shape is divided into a plurality of virtual spatial regions, wherein in each virtual spatial region the material distribution of the at least two materials occurs homogeneously and periodically according to predetermined rules corresponding to a microstructure. The predetermined rules are ascertained via a computer supported method depending on the predetermined functionality of the sensor element or the active component of the sensor element, wherein digital data, which describe the ascertained distribution of the at least two materials, are transferred to at least one 3D printer. As a printed product the sensor element or the active component of the sensor element is created by the 3D printer based on the digital data. 114-. (canceled)15. A method for manufacturing a composite material , a sensor element or an active component of a sensor element , wherein the sensor element is applied in a field device of automation technology , comprising the steps of:predetermining at least two materials with different physical and chemical properties depending on a functionality of the sensor element or the active component of the sensor element;predetermining an outer shape, into which the at least two materials should be formed;the outer shape being divided into a plurality of virtual spatial regions;in each virtual spatial region the material distribution of the at least two materials occurs homogeneously and periodically according to predetermined rules corresponding to a microstructure;ascertaining the ...

LOW Z HIGH PERFORMANCE CARBON COMPOSITE MATERIALS

A carbon/carbon part and processes for making carbon/carbon parts are provided. The process involves forming steps, carbonization steps and densification steps. The forming steps may include needling fibrous layers to form fibers that extend in three directions. Pressure may be applied to a fibrous preform at an elevated temperature to increase the fiber volume ratio of the fibrous preform. The densification steps may include filling the voids or pores of the fibrous preform with a carbon matrix. 1. A method for forming a fibrous preform comprising:superposing a first fibrous layer aligned in a machine direction with an additional fibrous layer aligned in an acute angle to the machine direction;needling the first fibrous layer and the additional fibrous layer together at a needle density of between approximately 60 and 65 needle punches per square centimeter to form a first combined fibrous mat;superposing an additional combined fibrous mat with the first combined fibrous mat;needling the first combined fibrous mat and the additional combined fibrous mat at a needle density of between approximately 45 and 55 needle punches per square centimeter to form the fibrous preform comprising oxidized polyacrylonitrile (OPF) fibers extending in multiple directions and having pores extending therethrough,wherein a fiber volume ratio of the fibrous preform is between about 30% fiber volume and about 35% fiber volume;compressing the fibrous preform; andcarbonizing the fibrous preform by heating the fibrous preform to convert fibers of the fibrous preform into carbon fibers, wherein the fiber volume ratio of the fibrous preform after the carbonizing is between about 20% to 24% fiber volume.2. The method of claim 1 , wherein the step of compressing the fibrous preform comprises applying a mechanical pressure to the fibrous preform during carbonizing to compress a thickness of the fibrous preform.3. The method of claim 1 , wherein the step of compressing the fibrous preform ...

CARBON-FIBER NONWOVEN CLOTH AND GAS DIFFUSION ELECTRODE FOR POLYMER ELECTROLYTE FUEL CELL USING SAME, POLYMER ELECTROLYTE FUEL CELL, METHOD FOR MANUFACTURING CARBON-FIBER NONWOVEN CLOTH, AND COMPOSITE SHEET

Provided is a carbon-fiber nonwoven cloth with low resistance to gases or liquids passing through, and low resistance in the thickness direction to heat or electricity, which is particularly appropriate for a gas diffusion electrode of a polymer electrolyte fuel cell; the cloth having an air gap with a diameter of at least 20 μm, at least some of the carbon fibers being continuous from one surface to the other surface, and the apparent density being 0.2-1.0 g/cm, or, having an air gap with a diameter of at least 20 μm and at least some of the carbon fibers being mutually interlaced, and further, at least some of the carbon fibers being oriented toward the thickness direction and the apparent density being 0.2-1.0 g/cm. 1. A carbon-fiber nonwoven cloth , which comprises carbon fibers and has two surfaces , and which has voids each having a diameter of 20 μm or more and has an apparent density of 0.2 to 1.0 g/cm , at least one part of the carbon fibers being continuous from one of the surfaces to the other surface.2. A carbon-fiber nonwoven cloth , which comprises carbon fibers and which has voids each having a diameter of 20 μm or more and an apparent density of 0.2 to 1.0 g/cm , at least one part of the carbon fibers being entangled with each other , and at least one part of the carbon fibers being oriented in the thickness direction of the nonwoven cloth.3. The carbon-fiber nonwoven cloth according to claim 1 , wherein the voids claim 1 , the diameter of which is 20 μm or more claim 1 , are used as a gas channel.4. The carbon-fiber nonwoven cloth according to claim 1 , which is usable as a gas diffusion electrode for a polymer electrolyte fuel cell.5. A gas diffusion electrode for a polymer electrolyte fuel cell claim 1 , wherein the carbon-fiber nonwoven cloth recited in is used.6. A polymer electrolyte fuel cell claim 1 , wherein the carbon-fiber nonwoven cloth recited in is used.7. A method for manufacturing a carbon-fiber nonwoven cloth claim 1 , comprising: a ...

NONWOVEN FABRIC OR NONWOVEN COMPOSITE MATERIAL FOR SHIELDING AND ABSORBING ELECTROMAGNETIC WAVE

The present invention relates to a nonwoven fabric or nonwoven composite material comprising the nonwoven fabric for shielding and absorbing electromagnetic waves, manufactured by using a carbon fiber plated with metal (copper and nickel) produced in an electroless or electrolysis continuous process. The nonwoven fabric of the present invention is thinner and stronger than the conventional art, and has an advantage of being capable of controlling conductivity by controlling only the content of the carbon fiber plated with metal, without need for further addition of conductive powder. 1. A method for manufacturing a nonwoven fabric for shielding and absorbing electromagnetic waves , the method comprising:(a) cutting copper and nickel-plated carbon fibers, which are obtained by continuous electroless and electrolytic processes, into chopped carbon fibers with a length of 3-500 mm;(b) mixing and dispersing the chopped copper and nickel-plated carbon fibers, which correspond to a resultant product in step (a), with water at a weight ratio of 1:100-600;(c) adding 3-30% (w/v) of the resultant product in step (b) to water, followed by dispersing; and(d) filtering the resultant product in step (c) and removing water.2. The method of claim 1 , wherein the mixing in step (b) is performed by further adding claim 1 , as a nonwoven fabric strength reinforcing agent claim 1 , natural pulp or a low-melting thermoplastic resin.3. The method of claim 2 , wherein the nonwoven fabric strength reinforcing agent is added in 1-50 wt % on the basis of the total weight of the chopped copper and nickel-plated carbon nanofibers claim 2 , which correspond to a resultant product in step (a) claim 2 , and the nonwoven fabric strength reinforcing agent.4. The method of claim 2 , wherein the low-melting thermoplastic resin is low-melting polyethylene terephthalate (LMPET).5. The method of claim 1 , wherein the mixing in step (b) is performed by further adding: as a magnetic and ferromagnetic ...

ACTIVATED CARBON FIBER FILTER MEDIA LAMINATE

In one example, a filter media laminate is provided that includes a first non-woven layer, a second non-woven layer, and an activated carbon fiber (ACF) layer disposed between, and attached to, the first non-woven layer and the second non-woven layer such that the ACF layer, the first non-woven layer, and the second non-woven layer collectively form the laminate. 1. A filter medium , comprising:a first non-woven layer;a second non-woven layer; andan ACF layer disposed between, and attached to, the first non-woven layer and the second non-woven layer such that the ACF layer, the first non-woven layer, and the second non-woven layer collectively form a laminate.2. The filter medium as recited in claim 1 , wherein one of the non-woven layers has a permeability that is about the same as claim 1 , or greater than claim 1 , a permeability of the ACF layer.3. The filter medium as recited in claim 1 , wherein one of the non-woven layers has first and second sides claim 1 , and one of the first and second sides has an adhesive disposed thereon.4. The filter medium as recited in claim 3 , wherein the adhesive is a heat-activated adhesive.5. The filter medium as recited in claim 3 , wherein the adhesive is a dispersed polyethylene binder.6. The filter medium as recited in claim 3 , wherein the first non-woven layer has a length that is greater than a length of the second non-woven layer.7. The filter medium as recited in claim 3 , wherein the adhesive has a melting point that is lower than a melting point of the non-woven layer.8. The filter medium as recited in claim 1 , wherein one of the non-woven layers substantially comprises polyester.9. The filter medium as recited in claim 1 , wherein the first non-woven layer and the second non-woven layer cooperatively define first and second wings claim 1 , each of the wings being disposed proximate a respective edge of the ACF layer.10. A filter medium claim 1 , comprising:a first non-woven layer having first and second sides and ...

Carbon fiber mat, preform, sheet material and molded article

A carbon fiber mat has discontinuous carbon fibers dispersed in the form of monofilaments, wherein the orientation direction of the monofilaments of the discontinuous carbon fibers is random, number average fiber length (L n ) is at least 1.5 mm and up to 15 mm, and proportion in number (Pa) of the discontinuous carbon fiber monofilaments having a fiber length in the range of median fiber length (L c )±20% is at least 40% and up to 99%.

ELECTROSPUN NANOFIBER COMPOSITES FOR WATER TREATMENT APPLICATIONS

Composites comprising polymeric nanofibers, metal oxide nanoparticles, and optional surface-segregating surfactants and precursor compositions are disclosed. Also disclosed are nonwoven mats formed from the composites and methods of making and using the composites. The composites enable the deployment of nanostructured materials for water treatment within a self-contained membrane with high water fluxes, as well as a number uses. 1. A precursor composition , comprising:at least one polymer;at least one non-aqueous solvent for said polymer;optionally, at least one surface-segregating surfactant;metal oxide nanoparticles;optionally, carbon nanotubes, graphene, or a combination thereof; andoptionally, a porogen.2. The precursor composition of claim 1 ,wherein said polymer is polyacrylonitrile (PAN), polymethyl methacrylate, polystyrene, polyvinylidene difluoride (PVDF), ethylene-vinyl acetate (EVA), or mixtures thereof.3. The precursor composition of claim 1 ,wherein said polymer is present at a level of about 5% by weight to about 15% by weight, based on the total weight of the precursor composition.4. The precursor composition of claim 1 ,wherein said non-aqueous solvent is ethanol, glacial acetic acid, N,N-dimethyl acetamide, tetrahydrofuran, acetone, N,N-dimethyl formamide, or mixtures thereof.5. The precursor composition of claim 1 ,wherein said non-aqueous solvent is present at a level of about 80% by weight to about 95% by weight, based on the total weight of the precursor composition.6. The precursor composition of claim 1 ,wherein said metal oxide is an iron oxide, iron oxyhydroxide, aluminum oxide, or a mixture thereof.7. The precursor composition of claim 6 ,wherein said iron oxide is hematite, goethite, ferrihydrite, magnetite, or a mixture thereof.8. The precursor composition of claim 1 ,wherein said metal oxide is present at a level of about 0.1% by weight to about 10% by weight, based on the total weight of the precursor composition.9. The precursor ...

STAMPABLE SHEET

A stampable sheet includes a skin layer and a core layer characterized in that the core layer comprises a thermoplastic resin and a carbon fiber nonwoven sheet having fiber bundles of discontinuous carbon fibers, the carbon fiber nonwoven sheet contains at least five fiber bundles (A) having a bundle width of at least 150 μm in 100 mm×100 mm of stampable sheet, and the skin layer comprises a thermoplastic resin and a strengthened fiber nonwoven sheet having opened discontinuous strengthened fibers. 115-. (canceled)16. A stampable sheet comprising a skin layer and a core layer , wherein the core layer comprises a carbon fiber non-woven fabric sheet having fiber bundles of discontinuous carbon fibers and a thermoplastic resin , the carbon fiber non-woven fabric sheet contains at least five or more fiber bundles (A) each having a bundle width of 150 μm or more per a 100 mm square of the stampable sheet and also contains less than five fiber bundles each having a bundle width of more than 5 mm per the above-mentioned 100 mm square , and the skin layer comprises a reinforcing fiber non-woven fabric sheet having spread discontinuous reinforcing fibers and a thermoplastic resin.17. The stampable sheet according to claim 16 , wherein the reinforcing fiber non-woven fabric sheet contains less than five fiber bundles each having a bundle width of 150 μm or more per a 100 mm square of the stampable sheet.19. The stampable sheet according to claim 16 , wherein claim 16 , with respect to the single fiber bending stiffness of reinforcing fibers that constitute the skin layer and the single fiber bending stiffness of carbon fibers that constitute the core layer claim 16 , the value of the (single fiber bending stiffness of the reinforcing fibers)/(single fiber bending stiffness of the carbon fibers) ratio is 1 or more and less than 20.20. The stampable sheet according to claim 16 , wherein claim 16 , with respect to the heat conductivity of the reinforcing fibers that constitute ...

PREPREG SHEET

The prepreg sheet, which is an intermediate of molded articles, has a nonwoven fabric having carbon fibers and thermoplastic resin fibers, wherein the prepreg sheet has a thickness expansion rate of 250% or less after being heated for 90 seconds at a temperature of the melting point of the thermoplastic resin fiber to the melting point+100° C. 1. A prepreg sheet , which is an intermediate of molded articles , comprising a nonwoven fabric comprising carbon fibers and thermoplastic resin fibers , wherein ,the prepreg sheet has a thickness expansion rate of 250% or less after being heated for 90 seconds at a temperature of the melting point of the thermoplastic resin fibers to the melting point+100° C.2. The prepreg sheet according to claim 1 , wherein the prepreg sheet has a density of marks made by needle punching of 5 punches/cmor less.3. The prepreg sheet according to claim 1 , wherein a density of the carbon fibers having a displacement amount of 1 mm or more is 100 threads/cmor less in a cross section of the prepreg sheet claim 1 , wherein the displacement amount is a gap in the thickness direction between one portion and another portion of a carbon fiber selected from one of the carbon fibers.4. The prepreg sheet according to claim 1 , wherein the prepreg sheet has a basis weight of 100 to 1500 g/mand a thickness of 0.5 to 6.0 mm.5. The prepreg sheet according to claim 1 , wherein the carbon fibers have an average fiber length of 15 to 100 mm claim 1 , and the thermoplastic resin fibers have an average fiber length of 25 to 100 mm.6. The prepreg sheet according to claim 1 , wherein the thermoplastic resin fibers are selected from polypropylene fibers claim 1 , polyamide fibers claim 1 , polycarbonate fibers claim 1 , polyphenylene sulfide fibers claim 1 , and polyetherimide fibers.7. The prepreg sheet according to claim 1 , wherein the carbon fibers and the thermoplastic resin fibers are mixed in a mass ratio of 20:80 to 80:20. The present invention relates to a ...

Random Mat and Fiber-Reinforced Composite Material Shaped Product

Provided is a reinforcing fiber mat including a reinforcing fiber mat constituted by reinforcing fibers having an average fiber length of 3 to 100 mm. The reinforcing fibers satisfy the following i) to iv): i) a weight-average fiber width (Ww) of the reinforcing fibers satisfies the following Equation (1): 1. A reinforcing fiber mat , comprising:a reinforcing fiber mat constituted by reinforcing fibers having an average fiber length of 3 to 100 mm, {'br': None, '0.03 mm Подробнее

Method and Apparatus for Fabricating Fibers and Microstructures from Disparate Molar Mass Precursors

The disclosed methods and apparatus improve the fabrication of solid fibers and microstructures. In many embodiments, the fabrication is from gaseous, solid, semi-solid, liquid, critical, and supercritical mixtures using one or more low molar mass precursor(s), in combination with one or more high molar mass precursor(s). The methods and systems generally employ the thermal diffusion/Soret effect to concentrate the low molar mass precursor at a reaction zone, where the presence of the high molar mass precursor contributes to this concentration, and may also contribute to the reaction and insulate the reaction zone, thereby achieving higher fiber growth rates and/or reduced energy/heat expenditures together with reduced homogeneous nucleation. In some embodiments, the invention also relates to the permanent or semi-permanent recording and/or reading of information on or within fabricated fibers and microstructures. In some embodiments, the invention also relates to the fabrication of certain functionally-shaped fibers and microstructures. In some embodiments, the invention may also utilize laser beam profiling to enhance fiber and microstructure fabrication. A method of fabricating fibers , comprising:a. introducing a low molar mass precursor species into a reaction vessel, wherein the low molar mass precursor species comprises carbon;b. introducing a high molar mass precursor species into said reaction vessel, the high molar mass precursor species having a molar mass at least 1.5 times greater than the low molar mass precursor species;c. creating (i) a reaction zone within the reaction vessel and (ii) a thermal diffusion region at or near the reaction zone, wherein at least one of the thermal diffusion region and reaction zone is at least partially created by a primary heating means, and the thermal diffusion region at least partially separates the low molar mass precursor species from the high molar mass precursor species and concentrates at least one of the ...

NON-WEFT UNIDIRECTIONAL FIBER-REINFORCED FABRICS

A non-weft, unidirectional fabric is provided that includes a plurality of substantially parallel reinforcement fiber bundles. The reinforcement fiber bundles have a first surface and an opposing second surface. The non-weft, unidirectional fabric further includes at least one of a non-woven veil bonded to at least one surface and one or more bands of sprayed adhesive spanning across at least a portion of the width of one of the first and second surfaces of the plurality of substantially parallel reinforcement fibers. 125-. (canceled)26. A non-weft , unidirectional fabric comprising:a plurality of substantially parallel reinforcement fiber bundles, said reinforcement fiber bundles having a first surface and an opposing second surface, each of the first surface and opposing second surface having a width; and a non-woven veil bonded to at least one of said first and second surface, and', 'one or more bands of sprayed adhesive spanning at least a portion of the width at least one of the first and second surfaces of the plurality of substantially parallel reinforcement fibers., 'at least one of27. The non-weft claim 26 , unidirectional fabric of claim 26 , wherein said reinforcement fiber bundles are at least one of glass and carbon fiber bundles.28. The non-weft claim 26 , unidirectional fabric of claim 26 , non-woven veil is a glass veil claim 26 , a polymer veil claim 26 , or mixtures thereof.29. The non-weft claim 28 , unidirectional fabric of claim 28 , wherein said polymer veil comprises at least one of polypropylene claim 28 , polyester claim 28 , polyamide claim 28 , and polyurethane filaments.30. The non-weft claim 26 , unidirectional fabric of claim 26 , wherein said non-woven veil is formed by one of a melt-blown process claim 26 , a spun-bond process claim 26 , a dry-laid process claim 26 , a wet-blown process claim 26 , and electro-spinning.31. The non-weft claim 26 , unidirectional fabric of claim 26 , wherein said non-woven veil is selectively bonded to ...

SHORT FIBER COMPOSITE MATERIAL

A method of forming a fiber reinforced composite material includes cutting a plurality of reinforcing fibers to a selected length, directing the plurality of reinforcing fibers through a fiber alignment mechanism, orienting the plurality of reinforcing fibers in a selected direction via the fiber alignment mechanism, and adhering the aligned plurality of reinforcing fibers to a substrate material to form the fiber reinforced composite material. A system for manufacturing a fiber reinforced composite material includes a feed mechanism to direct a substrate material along a selected path, a cutting mechanism to cut a plurality of reinforcing fibers to a selected length, and a fiber alignment mechanism to orient the plurality of reinforcing fibers in a selected direction before adhering the plurality of reinforcing fibers to the substrate material. 1. A method of forming a fiber reinforced composite material comprising:cutting a plurality of reinforcing fibers to a selected length;directionally orienting a plurality of along a selected orientation through a fiber alignment mechanism; andadhering the plurality of reinforcing fibers to a substrate material to form the fiber reinforced composite material.2. The method of claim 1 , wherein the fiber alignment mechanism uses one of air claim 1 , an ultrasonic field or an alignment blade.3. The method of claim 1 , wherein directing the plurality of reinforcing fibers through the filter alignment mechanism comprises directing the plurality of reinforcing fibers through an electrical field to orient the plurality of reinforcing fibers in the selected direction.4. The method of claim 1 , wherein adhering the aligned plurality of reinforcing fibers to the substrate material comprises adhering the aligned plurality of reinforcing fibers to a matrix material.5. The method of claim 1 , further comprising directing the aligned plurality of reinforcing fibers and the substrate material through a consolidation roller to adhere the ...

Carbon fiber nonwoven composite

Fiber-reinforced nonwoven composites having a wide variety of uses (e.g., leisure goods, aerospace, electronics, equipment, energy generation, mass transport, automotive parts, marine, construction, defense, sports and/or the like) are provided. The fiber-reinforced nonwoven composite includes a plurality of carbon fibers and a polymer matrix. The plurality of carbon fibers have an average fiber length from about 50 mm to about 125 mm. The fiber-reinforced nonwoven composite comprises a theoretical void volume from about 0% to about 10%.

CARBON FIBER NON-WOVEN CLOTH, METHOD OF PRODUCING CARBON FIBER NON-WOVEN CLOTH, CARBON FIBER MULTI-LAYER CLOTH AND COMPOSITE MATERIAL

A carbon fiber non-woven cloth that satisfies at least one of the following (1) to (3): (1) includes a carbon fiber that includes an organic substance, and a carbon fiber that does not substantially include an organic material, (2) includes a carbon fiber that forms a strand, and a carbon fiber that does not form a strand, or (3) includes a carbon fiber that is not a retrieved product from a composite material including a carbon fiber and an organic substance, and a carbon fiber that is a retrieved product from a composite material including a carbon fiber and an organic substance. 1. A carbon fiber non-woven cloth that satisfies at least one of the following (1) to (3):(1) includes a carbon fiber that includes an organic substance, and a carbon fiber that does not substantially include an organic material,(2) includes a carbon fiber that forms a strand, and a carbon fiber that does not form a strand, or(3) includes a carbon fiber that is not a retrieved product from a composite material including a carbon fiber and an organic substance, and a carbon fiber that is a retrieved product from a composite material including a carbon fiber and an organic substance.2. The carbon fiber non-woven cloth according to claim 1 , wherein a length of the carbon fiber is from 20 mm to 150 mm.3. The carbon fiber non-woven cloth according to claim 1 , further comprising a resin fiber.4. A method of producing the carbon fiber non-woven cloth according to claim 1 , the method comprising claim 1 , in the following order:a contact process of contacting a processing solution with a composite material, the composite material including a carbon fiber and an organic substance that decomposes in the processing solution;a separation process of separating the processing solution, which includes a decomposition product of the organic substance, from the carbon fiber; anda non-woven cloth producing process of producing a carbon fiber non-woven cloth using the carbon fiber that is obtained through ...

POROUS CARBON SHEET AND PRECURSOR FIBER SHEET THEREOF

A precursor fiber sheet includes short carbon fibers having an average length of 3 to 10 mm, natural pulp having an ash content of 0.15 mass % or less, and a heat-carbonizable resin, and a porous carbon sheet is obtained by carbonizing the precursor fiber sheet. This enhances gas diffusibility and water removal properties of the porous carbon sheet and has high mechanical strength and few appearance defects even when the bulk density of the porous carbon sheet is lowered. 112.-. (canceled)13. A precursor fiber sheet comprising: short carbon fibers having an average length of 3 to 10 mm , natural pulp having an ash content of 0.15 mass % or less , and a heat-carbonizable resin.14. The precursor fiber sheet according to claim 13 , wherein the natural pulp is sulfite pulp.15. The precursor fiber sheet according to claim 13 , comprising 5 to 100 parts by mass of the natural pulp based on 100 parts by mass of the short carbon fibers.16. The precursor fiber sheet according to claim 13 , wherein the natural pulp is wood pulp.17. A porous carbon sheet obtained by carbonizing the precursor fiber sheet according to .18. The porous carbon sheet according to claim 17 , having a rate R of bonding carbide defined by formula (I) of 30 to 60%:{'br': None, 'i': R', 'A−B', 'A]×, '(%)=[()/100\u2003\u2003(I)'}{'sup': '2', 'wherein A is areal weight (g/m) of the porous carbon sheet, and'}{'sup': '2', 'B is areal weight (g/m) of the short carbon fibers.'}19. The porous carbon sheet according to claim 17 , having an average thickness of 60 to 300 μm.20. The porous carbon sheet according to claim 17 , having a tensile strength of 15 to 50 MPa.21. The porous carbon sheet according to claim 17 , having a number of appearance defects due to short carbon fiber bundles of 1.0 or less claim 17 , and a total number of appearance defects due to holes claim 17 , foreign matter claim 17 , and burned deposits of 0.5 or less claim 17 , per a unit area of 1 m.22. The porous carbon sheet according to ...

FLAME RESISTANT POLYCARBONATE COMPOSITES FOR SEMI-STRUCTURAL PANELS

Provided are polycarbonate fiber/carbon fiber composites and articles, the composites and articles having improved fire, smoke, and toxicity characteristics. 1. A composition for the manufacture of a non-woven , composite article , comprising:a plurality of flame retardant melt spun staple polycarbonate fibers; anda plurality of carbon fibers.2. The composition of claim 1 , further comprising an amount of a binder material that has a melting point lower than that of the plurality of polycarbonate fibers.3. The composition of claim 2 , wherein the binder material comprises a plurality of fibers.4. The composition of claim 2 , wherein the binder material comprises polypropylene claim 2 , polyethylene claim 2 , ABS claim 2 , PS claim 2 , SAN claim 2 , or any combination thereof.5. The composition of claim 1 , wherein the polycarbonate fibers are present at from about 10 to about 90 wt % claim 1 , measured against the total weight of the composition.6. The composition of claim 1 , wherein the carbon fiber is present at from about 10 to about 90 wt % claim 1 , measured against the total weight of the composition.7. A method for forming an article claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'forming a layer comprising a suspension of the composition of in liquid;'}at least partially removing the liquid from the suspension to form a web;heating the web under conditions sufficient to remove any remaining liquid from the web and to melt the polycarbonate fibers; andcooling the heated web to form an article that comprises the carbon fibers in a matrix of the polycarbonate.8. An article made according to the method of .9. A non-woven article claim 7 , comprising:a network comprising a plurality of melted and cooled flame retardant melt spun staple polycarbonate fibers; anda plurality of carbon fibers disposed within the network.10. The non-woven article of claim 9 , wherein the article has an areal weight of less than 1400 g/m.11. A method of forming ...

基于缠绕工艺和针刺工艺制备的碳/碳复合材料坩埚

本发明涉及一种基于缠绕工艺和针刺工艺制备的碳/碳复合材料坩埚及其制备工艺，所述碳/碳复合材料坩埚包括自上而下依次设置并一体连接的直筒形筒身段和底座，所述直筒形筒身段包括均由纤维缠绕而成的筒身段环向缠绕层和筒身段螺旋缠绕层，所述筒身段环向缠绕层和筒身段螺旋缠绕层上沿轴向和周向分布有针刺孔，所述底座采用湿法缠绕成型，所述坩埚采用碳/碳复合材料制成。与现有技术相比，本发明的坩埚制品强度高、不分层，制备工艺产出效率高。

PVDF NANOFIBROUS MEMBRANE WITH HIGH RATIO OF β-PHASE, PIEZOELECTRIC AND FERROELECTRIC PROPERTIES, AND MANUFACTURING METHOD OF THE SAME

본 발명은 폴리비닐리덴 플루오라이드(PVDF) 및 탄소나노튜브를 포함하고, 상기 폴리비닐리덴 플루오라이드(PVDF) 및 탄소나노튜브가 전기방사된 나노섬유막 및 나노섬유막의 제조방법을 제공한다. 본 발명의 나노섬유막에 따르면, 90% 이상의 높은 β결정 함량과 60 mC/m 2 의 잔류분극값 및 압전성에 기인한 우수한 기계적 거동을 발휘할 수 있다. The present invention provides a method for producing a nanofiber membrane and a nanofibrous membrane including polyvinylidene fluoride (PVDF) and carbon nanotubes, and the polyvinylidene fluoride (PVDF) and carbon nanotubes electrospun. According to the nanofiber membrane of the present invention, it is possible to exhibit an excellent mechanical behavior due to a high? Crystal content of 90% or more, a residual polarization value of 60 mC / m 2 and piezoelectricity.

Carbon nanotube fibers/filaments formulated from metal nanoparticle catalyst and carbon source

Disclosed is a method of: providing a mixture of a polymer or a resin and a transition metal compound, producing a fiber from the mixture, and heating the fiber under conditions effective to form a carbon nanotube-containing carbonaceous fiber. The polymer or resin is an aromatic polymer or a precursor thereof and the mixture is a neat mixture or is combined with a solvent. Also disclosed are a carbonaceous fiber or carbonaceous nanofiber sheet having at least 15 wt. % carbon nanotubes, a fiber or nanofiber sheet having the a polymer or a resin and the transition metal compound, and a fiber or nanofiber sheet having an aromatic polymer and metal nanoparticles.

CNS-infused carbon nanomaterials and process therefor

A composition includes a carbon nanotube (CNT) yarn or sheet and a plurality of carbon nanostructures (CNSs) infused to a surface of the CNT yarn or sheet, wherein the CNSs are disposed substantially radially from the surface of the CNT yarn or outwardly from the sheet. Such compositions can be used in various combinations in composite articles.

Apparatus for manufacturing carbon fiber film for manufacturing non-woven fabric and carbon fiber film manufactured using the same

The present invention relates to an apparatus for manufacturing a carbon fiber film for forming non-woven fabric and a carbon fiber film manufactured using the same, wherein the large diameter of the cylinder roll has worker rolls which are spaced apart at regular intervals along the outer peripheral surface and rotate in a direction opposite to the cylinder roll, and between one side of the worker roll and the cylinder roll, a stripper roll rotating in the same direction as the worker roll is equipped, and at the output side of the cylinder roll, a web roll rotating in the direction opposite to the cylinder roll is equipped, wherein the cylinder roll, the web roll, the worker roll and the stripper roll each has a band-type saw blade winding spirally to be fixed along the outer peripheral surface, and the saw blade intervals (G) in the direction of the axis of each roll are maintained to be 1-2 mm, and the number of saw blades (S) per inch in each roll′s saw blade is kept to be 6-10 T, and regarding the angle (A) of saw blades equipped in each roll, the angle (A) of saw blades equipped in the cylinder roll is 60-72°, the angle (A) of saw blades equipped in the web roll is 60-65°, the angle (A) of saw blades equipped in the worker roll is 60-68°, and the angle(A) of saw blades equipped in the stripper roll is 60-65°, so that manufacture of a pure carbon fiber film is possible.

부직포 성형장치

본 발명은 탄소 섬유를 안내하는 실린더롤러와, 상기 실린더롤러와 맞물려 회전하여 탄소 섬유의 이송을 안내하는 웹롤러와, 탄소 섬유가 상기 실린더롤러로 공급되도록 강제하는 한 쌍의 공급롤러와, 탄소 섬유를 해모시키는 워커롤 및 스트리퍼롤과, 상기 실린더롤러의 표면에 부착된 분진과 이물질을 제거하는 분진제거수단과, 상기 실린더롤러 또는 웹롤러에 형성되는 이슬 맺힘을 방지하는 결로방지수단을 포함하여 구성된 부직포 성형장치를 제공하며, 이를 통해 부직포 성형을 이루는 탄소 섬유 필름 형태의 웹 제조에서 공급되는 탄소 섬유의 분진 발생을 줄이고, 카딩 공정시 발생되는 분진 및 이물질의 제거와 함께 실린더롤러 및 웹롤러의 온도 유지를 통해 연속적이고 원활한 작업 환경이 제공되도록 한 것이다.

Porous electrode substrate and method for producing the same

従来では作製困難なハンドリング性、ガス透過性が良い、低嵩密度化した多孔質電極基材を提供することが求められていた。炭素繊維（Ａ）が炭化物により接合された構造を有する多孔質電極基材であって、１．５×１０-1ＭＰａの圧力加印時の嵩密度が１．０×１０-1ｇ／ｃｍ3以上２．０×１０-1ｇ／ｃｍ3以下、曲げ強度が１０ＭＰａ以上である、多孔質電極基材。 Conventionally, it has been demanded to provide a porous electrode substrate with low bulk density, which has good handling properties and gas permeability that are difficult to produce. A porous electrode base material having a structure in which carbon fibers (A) are joined by a carbide, and has a bulk density of 1.0 × 10 −1 g / cm 3 or more when applied with a pressure of 1.5 × 10 −1 MPa 2 A porous electrode substrate having a thickness of 0.0 × 10 −1 g / cm 3 or less and a bending strength of 10 MPa or more.

Fabrication of shaped article by low-pressure moulding

FIELD: machine building. SUBSTANCE: method of production of shaped article from unordered mat containing carbon fibre strands with mean length of fibre strands of 5-100 mm, and thermoplastic polymer. Said fibre strands are impregnated at heating and comprises of mat before or after placing in the mould. Production of definite unordered mat is executed by its impregnation with thermoplastic polymer, compaction of said mat in metal mould at 0.1-20 MPa and withdrawal unordered mat from metal mould. Large and complex shaped article is produced by moulding at low pressure in compliance with this invention. EFFECT: simplified process. 13 cl, 5 dwg, 2 tbl, 7 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B29C 43/56 B29C 43/18 B29C 43/34 B29K 105/08 B29L 31/30 (13) 2 535 711 C1 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014107872/05, 01.08.2012 (24) Дата начала отсчета срока действия патента: 01.08.2012 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): НАГАКУРА Ясунори (JP), АРАКАВА Мотооми (JP), ТАНИГУТИ Митихару (JP), ОБАТА Акихико (JP) (45) Опубликовано: 20.12.2014 Бюл. № 35 20100215887 A1, 26.08.2010. JP 2010253938 A, 11.11.2010. JP 2011021303 A, 03.02.2011. JP 10016103 A, 20.01.1998. RU 2404891 C2, 27.11. 2010 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.03.2014 (86) Заявка PCT: 2 5 3 5 7 1 1 (56) Список документов, цитированных в отчете о поиске: JP 2008308543 A, 25.12.2008. US R U (73) Патентообладатель(и): ТЕЙДЗИН ЛИМИТЕД (JP) 03.08.2011 JP 2011-170209 2 5 3 5 7 1 1 R U (87) Публикация заявки PCT: C 1 C 1 JP 2012/070126 (01.08.2012) WO 2013/018920 (07.02.2013) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ ИЗГОТОВЛЕНИЯ ФАСОННОГО ИЗДЕЛИЯ ФОРМОВАНИЕМ ПОД НИЗКИМ ДАВЛЕНИЕМ (57) Реферат: Способ изготовления фасонного изделия из мата, прессованием ...

Non-woven fabric including fibrous graphene composite molded body

섬유 형태의 그래핀 복합 성형체를 함유하는 부직포에 관한 것으로서, 보다 구체적으로 상기 그래핀 복합 성형체는 고분자 수지에 분산된 그래핀을 포함하는 것이고, 상기 그래핀 복합 성형체는 이물질을 외부로 배출시키는 필터링 공정을 통해 제조되기 때문에 이를 포함하는 부직포가 우수한 항균, 제균, 유해가스에 대한 탈취율, 정전기 방지, 원적외선 방출, 자외선 차단율, 인장강도 및 신율 특성을 가지는 것을 특징으로 한다.

Carbon fiber nonwoven

A carbon fiber nonwoven fabric in which carbon fibers are sized with an aliphatic compound having a plurality of epoxy groups or a specific aromatic compound; the number average x of carbon fibers forming a carbon fiber bundle (1), in which the number of carbon fibers forming the carbon fiber bundle is 90 or more, is in the range of 90 to 1,000 fibers per bundle among the carbon fiber bundles in the carbon fiber nonwoven fabric; and the standard deviation à of the number of carbon fibers forming the carbon fiber bundle (1) is in the range of 50 to 500. It is possible to provide a carbon fiber nonwoven fabric in which high flowability and mechanical properties can be both satisfied with small variability in mechanical properties when a carbon fiber composite material is molded, and which also has an excellent shaping property for a carbon fiber mat.

The production technology of filtering material is produced with the fine precursor of itrile group type carbon

本发明公开了一种用腈基型碳纤原丝生产过滤材料的生产工艺，其技术方案要点是：包括以下步骤1）纤维选用；2）腈基型碳纤原丝改性：S1：将腈基型碳纤原丝投放到定型炉内，进行抽真空处理和升温处理，抽真空的时间为15mim至45min，达到的负压为3000‑5000pa，升温时间在5min至45min之间，达到的温度为90℃‑150℃；S2：在S1的条件下，向定型炉内瞬时注入干热气，将得到的改性腈基型碳纤原丝定型；3）梳理；4）缜密针刺；5）后处理。本发明将传统碳纤维原丝生产过程中产生的非优等品当做原料利用，将其改性之后与PTFE纤维进行混纺，得到孔间缜密精致的过滤毡，大大提高对烟尘微小颗粒的过滤效果，减少污染排放量，不仅减少了浪费，提高资源利用率，而且避免了环境污染。

Functional non-woven fabric for various purpose and method for producing thereof

PURPOSE: A method for fabricating multi-purpose functional non-woven fabric is provided to ensure excellent thermal stability and conductivity. CONSTITUTION: A method for fabricating multi-purpose functional non-woven fabric comprises: a step of mixing unwinding carbon fibers and mixing the carbon fibers with cotton in a weight ratio of 7:3-8:2 to prepare carbon fiber cotton; a step of mixing the carbon fiber cotton and natural cotton and cotton beating; a step of injecting the cotton into a carding machine, laminating, and needle-punching; and a step of performing flame retardant and resist printing treatment, dehydrating, and drying.

Fibrous structure, process for its preparation and application, and composite material based on fiber and resin

FIELD: chemistry. SUBSTANCE: invention comprises at least one thermosetting resin, as well as fixed and/or stable fiber structure. Means for fixing and stabilizing the ester is a random copolymer which is formed from dibasic acids, namely, terephthalic acid and optionally isophthalic acid and butanediol, diethylene glycol and triethylene glycol. A method of manufacturing a composite material consists in applying and fixing means to stabilise the fibrous material. EFFECT: invention allows to increase the strength of the composite material and to reduce the area of separation. 14 cl, 4 tbl, 19 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 622 117 C2 (51) МПК B32B 5/24 (2006.01) D06M 17/04 (2006.01) C09J 167/02 (2006.01) B32B 27/12 (2006.01) D04H 3/12 (2006.01) D06M 15/507 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА C08J 5/04 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ D04H 1/587 (2012.01) D04H 1/54 (2012.01) (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2013106917, 08.02.2013 (24) Дата начала отсчета срока действия патента: 08.02.2013 (72) Автор(ы): ХОППЕ Ральф (CH) (73) Патентообладатель(и): ЭМС-ПАТЕНТ АГ (CH) 13.06.2017 (56) Список документов, цитированных в отчете о поиске: US 5561213 A, 01.10.1996. US Приоритет(ы): (30) Конвенционный приоритет: 20020160674 A1, 31.10.2002. US 20090176903 A1, 09.07.2009. RU 2232177 C2, 10.07.2004. (43) Дата публикации заявки: 20.08.2014 Бюл. № 23 (45) Опубликовано: 13.06.2017 Бюл. № 17 Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" 2 6 2 2 1 1 7 (57) Формула изобретения 1. Композиционный материал на основе волокна и смолы, содержащий по меньшей мере одну термореактивную смолу, а также фиксированную и/или стабилизированную волокнистую структуру из волокнистого материала, выбранного из группы, состоящей из: - стекловолокна, - углеродного волокна, - минерального волокна, - синтетического волокна, - натурального волокна, - их смесей, и средства его фиксации и стабилизации, отличающийся тем, что средство ...

Fiber reinforced porous sheets

A method of preparing porous fiber reinforced polymer composite sheets has been developed to allow a more efficient pre-heating of the sheet prier to molding and includes the steps of blending reinforcing fibers with resin matrix forming fibers to form a web. This web is then heated to a temperature wherein the resin matrix forming fibers melt and envelope the reinforcing fibers, tacking them together at crossover points. The resultant web can then be directly heated very efficiently for molding. This web is highly porous allowing rapid heating at moderate pressure differentials during subsequent preheat steps. The microstruc-ture created when the resin matrix forming fibers are initially melted further enhances heating capability because the structure re-tains porosity during the subsequent heating step required for molding. Because the resin matrix forming fibers initially were un-iformly blended, a highly uniform distribution of polymeric material within the reinforcing fiber matrix yields molded parts with very uniform properties.

Melt blown melamine microfiber, non-flamable and heat resistant melamine fiber including the same and method for manufacturing the same

멜트블로운 멜라민 미세섬유, 이를 포함하는 내열성 및 난연성이 우수한 멜라민 섬유 및 이의 제조방법 에 관한 것으로서, LOI 30% 이상, 섬유직경 10㎛ 이하, 내열성능 260℃ 이상을 만족하는 열가소성 에테르화 멜라민 수지를 이용한 멜트블로운(Melt Blown) 용융방사에 의한 열가소성 멜라민 섬유 및 이의 제조방법을 제공한다. It relates to a melt-blown melamine microfiber, a melamine fiber having excellent heat resistance and flame retardancy including the same, and a manufacturing method thereof, wherein a thermoplastic etherified melamine resin that satisfies an LOI of 30% or more, a fiber diameter of 10 μm or more, and a heat resistance of 260° C. or more. It provides a thermoplastic melamine fiber and a manufacturing method thereof by melt-blown melt spinning using.

Method for producing semi-finished fibre products

Bei einem Verfahren zum Herstellen von Faserhalbzeug mit gerichteten Fasern, bei dem ein flächiges Trägermaterial (14) bereitgestellt wird, bei dem Fasern ausgerichtet auf dem Trägermaterial (14) abgelegt werden, und bei dem die Fasern auf dem Trägermaterial (14) fixiert werden, lässt sich einfach und kostengünstig ein hochwertiges Faserhalbzeug dadurch bereitstellen, dass als Trägermaterial (14) ein fluiddurchlässiges Trägermaterial aus einem Thermoplast verwendet wird.

Process for producing semi-finished fiber products

Bei einem Verfahren zum Herstellen von Faserhalbzeug mit gerichteten Fasern, bei dem ein flächiges Trägermaterial (14) bereitgestellt wird, bei dem Fasern ausgerichtet auf dem Trägermaterial (14) abgelegt werden, und bei dem die Fasern auf dem Trägermaterial (14) fixiert werden, lässt sich einfach und kostengünstig ein hochwertiges Faserhalbzeug dadurch bereitstellen, dass als Trägermaterial (14) ein fluiddurchlässiges Trägermaterial verwendet wird. In a method for producing semifinished fiber products with oriented fibers, in which a flat carrier material (14) is provided, in which the fibers are placed in alignment on the carrier material (14) and in which the fibers are fixed on the carrier material (14) A high-quality semifinished fiber product can be provided easily and inexpensively by using a fluid-permeable carrier material as the carrier material (14).

Canvas with random orientation of fibres and composite material reinforced with fibres

FIELD: textiles, paper. SUBSTANCE: canvas with random orientation of the fibres according to the present invention comprises: reinforcing fibres having an average length of 5 mm to 100 mm; and the thermoplastic resin; in which the surface mass of fibres is 25-3000 g/m 2 , with the number of fibres contained in the bundle (A) of the reinforcing fibres, equivalent to or greater than the critical number of individual fibres, determined by the formula (1), the volume fraction of fibres in the bundles (A) of the reinforcing fibres of the total volume of reinforcing fibres in the canvas is from about 30 vol. % to less than 90 vol. %, and the average number (N) of fibres in the bundle (A) of the reinforcing fibres meets the formula (2) where: the critical number of individual fibres =600/D (1) 0.7×10 4 /D 2 <N<1×10 5 /D 2 , (2) where D is the mean diameter (mcm) of the reinforcing fibre. EFFECT: creating a canvas with random orientation of the fibres used as a preform for manufacturing a product of a given shape from the composite material reinforced with fibres. 5 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК D04H 1/60 (13) 2 527 703 C1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013140465/12, 31.08.2011 (24) Дата начала отсчета срока действия патента: 31.08.2011 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): КОНАГАЙ Юхей (JP), ХАГИХАРА Кацуюки (JP), СОНОДА Наоаки (JP), ОКИМОТО Нобору (JP) (45) Опубликовано: 10.09.2014 Бюл. № 25 2 5 2 7 7 0 3 (56) Список документов, цитированных в отчете о поиске: JP 5162130 A, 29.06.1993. WO R U (73) Патентообладатель(и): ТЕЙДЗИН ЛИМИТЕД (JP) 01.02.2011 JP 2011-019891 2010013645 A1, 04.02.2010. RU 2296054 C2, 27.03.2007. RU 2326766 C2, 20.06.2008 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.09.2013 (86) Заявка PCT: JP 2011/070314 (31.08.2011) (87) Публикация заявки PCT: 2 5 2 7 7 0 3 R U C 1 C 1 WO 2012/105080 (09.08. ...

Method for manufacturing carbon aerogel-polymer composite sheet and carbon aerogel-polymer composite sheet manufactured thereby

The present invention relates to a method for manufacturing a carbon aerogel-polymer composite sheet and a carbon aerogel-polymer composite sheet manufactured thereby. In the method for manufacturing a carbon aerogel-polymer composite sheet according to the present invention, a carbon aerogel-polymer composite sheet manufactured by mixing thermally labile polymers with carbon aerogel and heat-treating the mixture stably includes pores in adjusted size to have a specific surface area increased and therefore can be used as a material of the electrode of an energy storage device.

Process for manufacturing a fibre web comprising a thermosetting resin, such a fibre web, and a reinforced fibre web comprising a thermosetting resin composite

Hybrid preform and method for manufacturing the same

본 발명에 따른 하이브리드 프리폼은, 일방향 탄소직물들로 구성된 몸체; 및 상기 몸체와 니들펀칭되어 결합되며, 웹 탄소직물들로 구성된 마찰층;을 포함한다. 본 발명에 따르면, 니들펀칭만으로 하이브리드 프리폼의 몸체와 마찰층을 형성할 수 있다. 또한, 니들펀칭으로 하이브리드 프리폼의 몸체와 마찰층을 결합시키므로, 하이브리드 프리폼의 몸체와 마찰층이 강하게 결합된다.

Composite material and method for increasing z-axis thermal conductivity of composite sheet material

Methods are provided for making a composite material that includes (a) providing at least one sheet which includes woven or non-woven glass fibers, carbon fibers, aramid fibers, or nanoscale fibers; and (b) stitching a plurality of stitches of a thermally conductive fiber through the at least one sheet in a Z-axis direction to form paths of higher conductivity through the sheet of material to increase its thermal conductivity in the Z-axis.

Conductive fabric

FIELD: textiles, paper. SUBSTANCE: non-woven conductive fabric contains cellulose fibers combined with conductive fibers in the form of carbon fibers. In one version of the invention these fabrics are made with method of wet packing of tissue. EFFECT: improved reliability and performance of indicators of fabric moisture taking into account absorption rate of moisture by the fabric, preventing false alarms of metal detector due to eliminating of metal conductive elements. 20 cl, 14 dwg, 3 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 443 813 (13) C2 (51) МПК D04H 1/40 (2012.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010106876/12, 25.06.2008 (24) Дата начала отсчета срока действия патента: 25.06.2008 (73) Патентообладатель(и): КИМБЕРЛИ-КЛАРК ВОРЛДВАЙД, ИНК. (US) R U Приоритет(ы): (30) Конвенционный приоритет: 31.07.2007 US 11/888,334 30.05.2008 US 12/130,573 (72) Автор(ы): НАН Дэвис-Дэнг Х. (US), ШУКОСКИ Дуэйн Джозеф (US), РЕКОСКЕ Майкл Дж. (US) (43) Дата публикации заявки: 20.09.2011 Бюл. № 26 2 4 4 3 8 1 3 (45) Опубликовано: 27.02.2012 Бюл. № 6 (56) Список документов, цитированных в отчете о поиске: US 2007142799 A1, 21.06.2007. US 5324579 A, 28.06.1994. US 2006264796 A1, 23.11.2006. US 6474367 В1, 05.11.2002. RU 2266771 С2, 27.12.2005. 2 4 4 3 8 1 3 R U (86) Заявка PCT: IB 2008/052559 (25.06.2008) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.03.2010 (87) Публикация заявки РСТ: WO 2009/016528 (05.02.2009) Адрес для переписки: 105064, Москва, а/я 88, "Патентные поверенные Квашнин, Сапельников и партнеры", пат.пов. В.П.Квашнину, рег.№ 4 (54) ПРОВОДЯЩИЕ ПОЛОТНА (57) Реферат: Нетканые проводящие полотна содержат целлюлозные волокна в сочетании с проводящими волокнами в виде углеродных волокон. В одном варианте выполнения изобретения эти полотна изготавливают способом влажной укладки ткани. Технический результат повышение надежности и эффективности работы индикаторов ...

Fiber-reinforced resin molding material and manufacturing method thereof

적어도 불연속의 강화 섬유의 다발상 집합체와 매트릭스 수지를 포함하는 섬유 강화 수지 성형 재료이며, 상기 강화 섬유의 다발상 집합체가, 연속 강화 섬유의 스트랜드가 해당 스트랜드를 복수의 다발로 완전 분할하는 섬유 분할 처리가 실시된 후 절단되어 형성된 형상을 갖는 강화 섬유 집합체 A와, 상기 섬유 분할 처리가 불충분한 섬유 미분할부의 형상을 갖는 강화 섬유 집합체 B1, 또는/및 상기 섬유 분할 처리가 실시되어 있지 않은 형상을 갖는 강화 섬유 집합체 B2의 양쪽을 포함하고, 상기 섬유 강화 수지 성형 재료 중의 강화 섬유의 총 중량에 대한 상기 강화 섬유 집합체 B1의 중량의 비율, 및 상기 섬유 강화 수지 성형 재료 중의 강화 섬유의 총 중량에 대한 상기 강화 섬유 집합체 B1과 상기 강화 섬유 집합체 B2의 총 중량의 비율이, 모두 50 내지 95%의 범위에 있는 것을 특징으로 하는 섬유 강화 수지 성형 재료이다. 성형 시의 양호한 유동성과 성형품의 우수한 역학 특성을 밸런스 좋게 양립시키는 것이 가능한 섬유 강화 수지 성형 재료와, 그 제조 방법을 제공한다. A fiber-reinforced resin molding material comprising at least a bundle aggregate of discontinuous reinforcing fibers and a matrix resin, wherein the bundle aggregate of reinforcing fibers is a fiber splitting treatment in which a strand of continuous reinforcing fibers completely divides the strand into a plurality of bundles A reinforcing fiber assembly A having a shape formed by being cut after the fiber splitting treatment is performed, a reinforcing fiber assembly B1 having a shape of a fiber undivided portion in which the fiber splitting treatment is insufficient, or/and a shape having the fiber splitting treatment not performed. Including both of the reinforcing fiber assembly B2, the ratio of the weight of the reinforcing fiber aggregate B1 to the total weight of reinforcing fibers in the fiber-reinforced resin molding material, and the above for the total weight of reinforcing fibers in the fiber-reinforced resin molding material A fiber-reinforced resin molding material characterized in that the ratio of the total weight of the reinforcing fiber aggregate B1 and the reinforcing fiber aggregate B2 is in the range of 50 to 95%. A fiber-reinforced resin molding material capable of achieving both good fluidity during molding and excellent mechanical properties of a molded article in a well-balanced manner, and a manufacturing method thereof are provided.

Carbon material non-woven sheet manufacturing device and method thereof

본 발명의 탄소 소재 부직포 시이트 제조 장치는 단섬유를 얇은 종이 형태의 제1 웹(C1)으로 제조하는 제1 카드기(10); 제1 웹(C1)을 이송시키도록 설치된 제1 이송부(20); 제1 카드기(10)와 이격된 상태로 배치되어 제2 웹(C2)이 제작되는 제2 카드기(30); 제2 카드기(30)에서 공급되는 제2 웹(C2)을 이송시키도록 설치된 제2 이송부(40); 제1 카드기(10)과 제2 카드기(30) 사이에 이격되어 설치되어 제1 웹(C1)과 제2 웹(C2) 중 적어도 하나에 활성탄을 공급하는 기능성 물질 첨가 유닛(50); 제1 이송부(20) 및 제2 이송부(40)에서 공급된 제1 웹(C1) 및 제2 웹(C2)과 기능성 물질 첨가 유닛(50)으로부터 공급된 활성탄이 침합되게 니들 펀칭 가공하여 탄소 소재 부직포 시이트를 제조하는 니들 펀칭기(37); 니들 펀칭기(37)에서 가공된 활성탄이 침합된 탄소 소재 부직포 시이트를 이송하면서 적치하도록 설치된 제3 이송부(60);를 포함한다. The carbon material nonwoven sheet manufacturing apparatus of the present invention includes: a first card machine 10 for manufacturing short fibers into a first web (C1) in the form of a thin paper; A first transfer unit 20 installed to transfer the first web (C1); The second card machine 30 is disposed in a spaced apart state from the first card machine 10 to produce a second web (C2); a second transfer unit 40 installed to transfer the second web C2 supplied from the second card machine 30; a functional material addition unit 50 installed to be spaced apart between the first card machine 10 and the second card machine 30 to supply activated carbon to at least one of the first web (C1) and the second web (C2); The first web C1 and the second web C2 supplied from the first transfer unit 20 and the second transfer unit 40 and the activated carbon supplied from the functional material addition unit 50 are immersed in needle punching processing to obtain a carbon material a needle punching machine 37 for producing a nonwoven sheet; and a third transfer unit 60 installed so as to be deposited while transferring the carbon material nonwoven sheet in which the activated carbon processed by the needle punching machine 37 is impregnated.

Preparation method of low-density multi-angle woven carbon fiber hard heat-insulation cylinder

本发明公开了一种低密度多角度编制碳纤维硬质保温筒的制备方法，具体包括如下步骤：将碳纤维切短，用梳理机梳理成毛丝并制成网胎；针刺复合成一个网胎单元；将网胎单元环绕在托网磨具上面针刺，形成‑90度到90多角度方向针刺纤维；使用高渗透雾气喷涂方法对上述制得的胚体进行内部单向喷胶；渗胶后的材料依次经过热压、碳化和纯化得到碳纤维保温筒初级产品，经机械加工成高温炉所需产品。对比现有产品软毡缠绕，气相沉积定型方法，保温性好；使用寿命长了一倍；采用高渗透喷涂，可以保证产品的密度均匀和性能的稳定；产品应用环境广。

Multi-component conductive polymer structures and a method for producing same

Novel electrically conductive polymer composite structures having a horizontal plane that contain effective amounts of two different types of conductive graphitic nanofibers. The first type of graphitic nanofiber is aligned substantially parallel to the horizontal plane of the polymer structure and are comprised of graphite platelets that are aligned substantially parallel to the longitudinal axis of the nanofiber. The second type of conductive graphite nanofiber are aligned at an angle to the horizontal plane of the polymer structure and are comprised of graphite platelets aligned at an angle to the longitudinal axis of the nanofiber. The conductive polymer composite structures are further comprised of one or more polymer layers.

Method for producing porous carbon nanofiber using camphor and carbon nanofiber produced by this method

Method and apparatus for fabricating fibers and microstructures from disparate molar mass precursors

The disclosed methods and apparatus improve the fabrication of solid fibers and microstructures. In many embodiments, the fabrication is from gaseous, solid, semi-solid, liquid, critical, and supercritical mixtures using one or more low molar mass precursor(s), in combination with one or more high molar mass precursor(s). The methods and systems generally employ the thermal diffusion/Soret effect to concentrate the low molar mass precursor at a reaction zone, where the presence of the high molar mass precursor contributes to this concentration, and may also contribute to the reaction and insulate the reaction zone, thereby achieving higher fiber growth rates and/or reduced energy/heat expenditures together with reduced homogeneous nucleation. In some embodiments, the invention also relates to the permanent or semi-permanent recording and/or reading of information on or within fabricated fibers and microstructures. In some embodiments, the invention also relates to the fabrication of certain functionally-shaped fibers and microstructures. In some embodiments, the invention may also utilize laser beam profiling to enhance fiber and microstructure fabrication.

Porous electrode base material, its manufacture method, film-electrode bond and polymer electrolyte fuel cell

多孔电极基材的制造方法包括使碳短纤维(A)和纤维(b)在平面方向分散而制成前体片的工序(1)、使碳粉(C2)和氟系树脂含浸于上述前体片的工序(2)、以及在氧存在的条件下在250℃以上且低于400℃的温度对上述进行了含浸的前体片进行热处理的工序(3)，其中，所述纤维(b)含有软化点为250℃以上且低于400℃的聚合物和熔点为400℃以上的粒状物质，所述碳粉(C2)含有粉状的碳，所述氟系树脂含有氟元素和树脂成分。

Conductive webs and method of their manufacturing

FIELD: textiles, paper. SUBSTANCE: nonwoven fabric comprises: a nonwoven base web consisting of cellulose fibres in an amount of at least about 50 wt %; cellulose fibres comprising softwood fibres having Canadian Standard Freeness, at least about 350 ml; conductive fibres in an amount from about 5 wt % to about 15 wt %. The conductive fibres comprise carbon fibres having the purity of at least about 85%, at that the pulp fibres are mixed with the carbon fibres. The main web has the tensile strength in the longitudinal direction of at least 5900 grams-force (which corresponds to 57.9 N), the base weight is less than about 40 g·m -2 , the voluminosity is less than about 1 cm 3 /g, the resistance is less than about 100 ohm/square. At that the basic web comprises water-resistant material and is non-embossed. The carbon fibres have the length from about 1 mm to about 6 mm. The method of manufacturing the conductive paper web comprises applying the aqueous suspension of fibres onto the porous forming surface to form a wet web, smoothing the web, drying and cutting the web into a plurality of bands having the width of about 3 mm to about 10 mm. Each band is wound crosswise onto the bobbin. EFFECT: creation of conductive elements is provided for use in moisture indicators without the use of metal-containing materials. 20 cl, 10 dwg, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК D04H 1/42 (13) 2 523 979 C2 (2012.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011130412/12, 05.11.2009 (24) Дата начала отсчета срока действия патента: 05.11.2009 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.01.2013 Бюл. № 3 (73) Патентообладатель(и): КИМБЕРЛИ-КЛАРК ВОРЛДВАЙД, ИНК. (US) R U 22.12.2008 US 12/341,419 (72) Автор(ы): АЛЕС Томас Майкл (US), НАН Дэвис-Дэнг Х. (US), ШАКОСКИ Дуэйн Джозеф (US), РЕКОСКЕ Майкл Джон (US) (45) Опубликовано: 27.07.2014 Бюл. № 21 4857377 A, 15.08.1989. US 2992964 A, ...

Complex matting with a layer of volumized fibers

Verfahren zur Herstellung einer mit Hilfe von Fasern, Spinfäden, Garnen oder Zwirnen gebildeten, mehrschichtigen Matte, eine verfahrensgemäss hergestellte mehrschichtige Matte bzw, hieraus hergestelltes Formteil sowie eine Vorrichtung zur Durchführung des Verfahrens.

Carbon nanotube sheet structure and its manufacturing method