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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 21. Отображено 21.
01-04-2015 дата публикации

High-fluidity PC/ABS alloy material and preparation method thereof

Номер: CN104479330A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention discloses a high-fluidity PC/ABS alloy material. The high-fluidity PC/ABS alloy material comprises the following components in parts by weight: 30-40 parts of PC, 20-25 parts of ABS, 30-40 parts of glass fiber, 3-5 parts of TLCP, 0.5-1.0 part of a compatilizer, 1.0-1.5 parts of an antioxidant, 0.5-1 part of an antistatic agent, 0.5-2 parts of a fire retardant and 0.5-1.0 part of a thermal oxidization stabilizer. Meanwhile, the invention discloses a preparation method of the high-fluidity PC/ABS alloy material. The preparation method comprises the step of adding an appropriate amount of glass fiber and TLCP in a PC/ABS alloy material. Under the condition of fully ensuring that the glass fiber reinforces the PC/ABS alloy material, the melt viscosity of a material substrate is further reduced, so that the finally prepared PC/ABS alloy material has excellent mechanical property, heat resistance and insulativity, and also has high fluidity and strong machining property.

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Номер записи: 1
09-07-2003 дата публикации

Timing closed safe gas valve

Номер: CN0001428527A
Автор: LI QINGGUI, QINGGUI LI
Принадлежит:

The timing closing safety gas valve is formed from timing gear cavity body, valve switching actuating mechanism and valve cavity body, in which the timing gear cavity is composed of timing knob, power output shaft, spring, driving gear, driving cam and time-delay gear mechanism. Said driving gear is meshed with time-delay gear mechanism, and the driving cam is connected with push bar of valve switching actuating mechanism, and said valve switching actuating mechanism is fixed in the valve cavity body.

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Номер записи: 2
05-03-2014 дата публикации

Reinforced modified polypropylene material

Номер: CN103613848A
Автор: WENG YONGHUA, WANG LIWEN, LI QINGGUI, DING XIANLIN
Принадлежит:

The invention discloses a reinforced modified polypropylene material. The reinforced modified polypropylene material is prepared from the following ingredients in parts by weight: 63-78 parts of polypropylene, 7-9 parts of metallocene polypropylene elastomer, 1-3 parts of nucleating agent, 2-3 parts of thermal stabilizer, 10-12 parts of compatibilizer, 20-25 parts of glass fibers, 11-15 parts of flame retardant and 16-20 parts of inorganic filler. The reinforced modified polypropylene material provided by the invention has good mechanical properties and has the characteristic of flame retardance, so that the applicable range is wide.

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Номер записи: 3
28-01-2015 дата публикации

Low-smell polypropylene material and preparation method thereof

Номер: CN104311999A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention relates to a low-smell polypropylene material and a preparation method thereof. The low-smell polypropylene material comprises the following constituents in parts by weight: 100 parts of a polypropylene reclaimed material, 10-40 parts of talcum powder, 5-15 parts of water-absorbent resin, 3-8 parts of water, 1-5 parts of reactive castor oil, 2-5 parts of a heat stabilizer and 2-5 parts of a composite antioxidant. The preparation method comprises the following steps: vaporizing moisture in the water-absorbent resin and the extra added water during the fusion processing process, bring out micromolecular substances which can generate smell in the polypropylene material from the material, and then preparing the low-smell polypropylene material. In addition, the active functional groups of the reactive castor oil can be chelated with smell substances such as amines, sulfurs and sulfur alcohols in the material to form a stable and novel compound, so as to reduce the smell of the ...

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Номер записи: 4
28-01-2015 дата публикации

Antistatic PC/ABS alloy material and preparation method thereof

Номер: CN104312128A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention discloses an antistatic PC/ABS (Poly Carbonate/Acrylonitrile Butadiene Styrene) alloy material which comprises 70 to 80 parts of PC, 5 to 10 parts of ABS, 0.5 to 1.0 part of a solubilizer, 3 to 5 parts of a flexibilizer, 8 to 12 parts of a compound antistatic agent, 0.5 to 1.0 part of a heat stabilizer DSTP (disteaxyl thiodipropionate), 0.1 to 0.5 part of an antioxidant 1010, and 0.1-0.5 part of an antioxidant 168, wherein the compound antistatic agent is formed by compounding ABS and siloxane. According to the invention, the PC/ABS alloy material is used as a base material; by compounding the ABS and the siloxane, the static elimination is carried out, so that the antistatic performance of the material is ensured and meanwhile, the impact resistance, the mechanical property and transparency of the material are all well reinforced; the solubilizer promotes compatibility between the compound antioxidant and the alloy material; the flexibilizer enhances the toughness of the ...

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Номер записи: 5
19-03-2014 дата публикации

Modified ABS material

Номер: CN103642168A
Автор: WENG YONGHUA, WANG LIWEN, LI QINGGUI, DING XIANLIN
Принадлежит:

The invention discloses a modified ABS material, which is characterized by comprising the following components by weight: 60-70 parts of ABS, 20-30 parts of high impact polystyrene, 20-30 parts of PC, 15-20 parts of a flame retardant, 2-3 parts of a heat stabilizer, 10-12 parts of a compatilizer, and 10-15 parts of glass fiber. By blending with PC and adding of HIPS (high impact polystyrene), the obtained modified ABS material has improved mechanical properties, and also has flame retardance, thus having an expanded scope of application.

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Номер записи: 6
25-03-2015 дата публикации

Coated conductive powder and preparation method thereof

Номер: CN104448562A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention discloses coated conductive powder and a preparation method thereof. The coated conductive powder is prepared from the following components in parts by weight by adopting a mechanical ultra-shearing method: 50-80 parts of plastic, 20-30 parts of packing, 15-25 parts of a rare-earth compound, 3-6 parts of a stabilizer, 1-5 parts of a lubricating agent, 3-8 parts of a composite antioxidant and 5-10 parts of a flexibilizer. In the preparation process, the packing and the rare-earth compound are processed by virtue of a ball mill in advance, so that the rare-earth compound can be well dispersed to coat the plastic; finally the coated conductive powder with excellent conductive property is prepared through the mechanical ultra-shearing method; reasonable components are selected; the preparation process is optimized; the method is simple and easy to realize; the coated conductive powder is good in conductive property; the production cost is greatly reduced; and the coated conductive ...

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Номер записи: 7
08-09-2020 дата публикации

Preparation method of high-modulus and high-impact-resistance polypropylene composite material

Номер: CN0111635589A
Автор: WANG LIWEN, LI QINGGUI, MENG DI, WENG YONGHUA
Принадлежит:

The invention relates to a preparation method of a high-modulus high-impact-resistance polypropylene composite material. The preparation method comprises the following steps: corroding the surface ofglass fiber by using an acid solution; dissolving dicumyl peroxide in a solvent, and impregnating the glass fibers in the solvent; and weighing a polypropylene resin, maleic anhydride and the treatedglass fiber, mixing, carrying out melt extrusion, and cooling to obtain the finished product. According to the invention, maleic anhydride grafted polypropylene is generated from a polypropylene resinand maleic anhydride under the initiation of dicumyl peroxide loaded on the surface of glass fiber, and is generated near the glass fiber, so that the effect of the material can be well exerted, andthe glass fiber can be well fused in a polypropylene base material so as to improve the mechanical properties of the polypropylene composite material and an injection molding finished product thereof;and maleic ...

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Номер записи: 8
10-09-2014 дата публикации

Method and tool for detecting insertion depth of handcart type switch cabinet

Номер: CN104037629A
Автор: TANG MING, FENG FAN, SONG YANLING, CHEN WU, LI QINGGUI, LIU YUNHAO, MA CAIYUN
Принадлежит:

The invention relates to a handcart type switch cabinet of a transformer substation and specifically relates to a method and a tool for detecting insertion depth of a handcart type switch cabinet. The method includes the following steps of disconnecting and grounding a power source of the handcart type switch cabinet; measuring depth B of the end of a fixed contact (1) and the outer edge of a fixed contact seat (3); measuring depth R of a chamfer contact point on a moving contact (4) of the handcart type switch cabinet and the end of the moving contact (4); measuring depth A of the position of a pushed positioning plate (2) and the end of the fixed contact (1); calculating depth L of insertion of the contact point of the moving contact (4) into the fixed contact (1), that is, the depth L=the depth A-the depth B-the depth R. The method and the tool have the advantages of being low in cost, convenient to use, simple in manufacture and structure, reliable in judgment, rapid in operation, measurable ...

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Номер записи: 9
28-01-2015 дата публикации

Modified polypropylene composite material with low shrinking percentage and preparation method thereof

Номер: CN104311996A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention discloses a modified polypropylene composite material with low shrinking percentage. The modified polypropylene composite material comprises the following components in parts by weight: 60 to 80 parts of polypropylene, 15 to 20 parts of embedded copolymer of PP (Propene Polymer) and PE (Poly Ethylene), 5 to 8 parts of POE (Polyolefin Elastomer), 5 to 8 parts of alkaline magnesium sulfate crystal whisker, 20 to 30 parts of mineral filler, 1 to 3 parts of antioxidant, 1 to 3 parts of compatilizer and 0.1 to 1 part of light stabilizer. The invention discloses a preparation method of the modified polypropylene composite material. By adding the embedded copolymer of the PP and PE, POE and alkaline magnesium sulfate crystal whisker into the modified polypropylene composite material, the composite material is very good in shrinking percentage through the combined action of the embedded copolymer of the PP and PE, POE and alkaline magnesium sulfate crystal whisker; by adding the mineral ...

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Номер записи: 10
12-02-2014 дата публикации

Reinforced scratching-resistant polypropylene material

Номер: CN103571058A
Автор: WENG YONGHUA, WANG LIWEN, LI QINGGUI, DING XIANLIN
Принадлежит:

The invention discloses a reinforced scratching-resistant polypropylene material which comprises the following components in parts by weight: 70-80 parts of polypropylene, 6-10 parts of metallocene polypropylene elastomer, 3-5 parts of a scratching-resistant agent, 1-2 parts of a light stabilizer, 5-8 parts of an antistatic agent, 12-18 parts of a compatilizer, 1-5 parts of a halogen-free flame retardant, 2-3 parts of a nucleating agent and 15-25 parts of inorganic filler. The reinforced scratching-resistant polypropylene material provided by the invention has an excellent mechanical property and also has scratching-resistant and antistatic properties.

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Номер записи: 11
25-07-2023 дата публикации

Efficient air flotation device based on low-carbon intelligent control technology

Номер: CN116477703A
Автор: DU JIONG, ZHANG XIN, SUN XIAOLI, LI GAOBO, YAO ZHILIANG, DONG LEI, LI QINGGUI
Принадлежит:

The invention relates to the field of sewage treatment, in particular to an efficient air flotation device based on a low-carbon intelligent control technology. The efficient air flotation device comprises an air flotation treatment module, a particle trapping module, an undisturbed mud scraping module, a produced mud defoaming module, a real-time feedback module and an intelligent control module. According to the invention, the inherent problem of high energy consumption caused by the fact that the dosage and reflux quantity cannot be accurately regulated and controlled in the existing air flotation technology can be solved, some defects existing in the actual operation process can be overcome, and the huge hindrance of popularization and application of the air flotation technology under the dual-carbon background is broken through by reducing the energy consumption; manual intervention is not needed, and the advantages of intelligence, low carbon, energy conservation and high efficiency ...

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Номер записи: 12
01-04-2015 дата публикации

Compound inorganic mineral powder filling material and preparation method thereof

Номер: CN104479171A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention relates to a compound inorganic mineral powder filling material, which comprises the following components in parts by weight: 100 parts of inorganic mineral powder, and 10-15 parts of polymer resin, wherein the polymer resin is wrapped on the surface of the inorganic mineral powder. The invention further discloses a preparation method of the compound inorganic mineral powder filling material. According to the invention, the polymer resin is wrapped on the surface of the inorganic mineral powder, so that the compound inorganic mineral powder is obtained; therefore, after being doped in a polymer material, the inorganic mineral powder has good compatibility with the polymer material basal body; the interfacial shear stress is eliminated; the impact property of the material self is ensured; and simultaneously, the modification function of the inorganic mineral powder to the polymer material is ensured.

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Номер записи: 13
25-03-2015 дата публикации

Preparation method of silver-coated silicon dioxide composite powder

Номер: CN104451621A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention belongs to the field of chemical silver coating of powder, and particularly relates to a preparation method of silver-coated silicon dioxide composite powder. The preparation method comprises the following steps: (1) weighing SiO2 powder, heating the SiO2 powder until the SiO2 powder is melted, dropwise adding polyvinyl alcohol and blending to prepare a SiO2 gelatineous solution; (2) centrifugally treating the SiO2 gelatineous solution to prepare SiO2 particles; (3) chemically coating silver on the SiO2 particles by the effect of ultrasonic wave by using a formaldehyde-silver-ammonia solution, wherein the PH of the formaldehyde-silver-ammonia solution is 10-10.5. According to the preparation method disclosed by the invention, polyvinyl alcohol is added dropwise so that a system is dispersed more uniformly; the PH of the silver coating solution is 10 to 10.5, especially when the PH is 10.5, the silver coating efficiency and the stability of the silver coating solution can be ...

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Номер записи: 14
25-03-2015 дата публикации

Composite inorganic mineral powder filler and preparation method thereof

Номер: CN104448395A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention relates to a composite inorganic mineral powder filler. The composite inorganic mineral powder filler is prepared from the following components in parts by weight: 100 parts of inorganic mineral powder, 10-15 parts of macromolecular resin and 3-5 parts of silane coupling agent; the inorganic mineral powder is covered with the macromolecular resin and the silane coupling agent. The invention also discloses a preparation method of the composite inorganic mineral powder filler. The inorganic mineral powder is covered with the macromolecular resin and the silane coupling agent to form the composite inorganic mineral powder, and therefore, after being blended with a polymer material, the composite inorganic mineral powder has excellent compatibility of the polymer material matrix, the interface shear stress is eliminated, the impact performance of the material is guaranteed, and meanwhile, the modification function of the inorganic mineral powder to the polymer material is guaranteed ...

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Номер записи: 15
21-01-2015 дата публикации

Low VOC polypropylene composite material and preparation method thereof

Номер: CN104292645A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention relates to a low VOC polypropylene composite material and a preparation method thereof. The low VOC polypropylene composite material comprises the following components: 100 parts of polypropylene resin, 20-40 parts of fillers, 3-5 parts of flexibilizers, 0.5-1.0 part of an antioxygen 1010, 0.5-1.0 part of an antioxygen 168, 0.3-0.5 part of a light stabilizer, 0.5-1.0 part of a reducing agent and 1-3 parts of an adsorbent. According to the invention, on one hand, generation of VOC can be prevented through reduction reaction, on the other hand, the generated VOC can be effectively adsorbed, and the VOC can be prevented from being generated by materials due to light and heat; in addition, reasonable auxiliaries with certain content are selected, so that the content of the VOC can be effectively lowered, and various mechanical properties of the materials can be guaranteed.

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Номер записи: 16
12-02-2014 дата публикации

Reinforcing modification ABS (Acrylonitrile Butadiene Styrene) material

Номер: CN103571152A
Автор: WENG YONGHUA, WANG LIWEN, LI QINGGUI, DING XIANLIN
Принадлежит:

The invention discloses a reinforcing modification ABS (Acrylonitrile Butadiene Styrene) material which is characterized by comprising the following components in parts by weight: 55-75 parts of ABS, 1-2 parts of a light stabilizer, 5-8 parts of an antistatic agent, 12-18 parts of a compatilizer and 20-25 parts of glass fiber. The reinforcing modification ABS material provided by the invention is subjected to reinforcing modification, and has an excellent mechanical property as well as an antistatic property.

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Номер записи: 17
28-01-2015 дата публикации

High-fluidity glass fiber reinforced polypropylene composite material and preparation method thereof

Номер: CN104311998A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention discloses a high-fluidity glass fiber reinforced polypropylene composite material. The high-fluidity glass fiber reinforced polypropylene composite material is prepared from the following raw materials: 100 parts of polypropylene, 20-40 parts of glass fiber, 3-5 parts of a toughening agent, 0.3-0.5 part of polyester wax, 0.3-0.5 part of metallic soap, 0.1-0.3 part of a rheological modifier, 0.5-1.0 part of a thermal stabilizers DSTP (Disteaxyl Thiodipropionate), 0.5-1.0 part of an antioxidant 1010, and 0.3-0.5 part of an antioxidant 168. The invention further discloses a preparation method of the composite material. According to the preparation method disclosed by the invention, an appropriate amount of a composite lubricating agent and the rheological modifier are added into the polypropylene composite material to effectively lower the friction force between polymer molecular chains, improve the flowing property of the polymer melt, and effectively increase the degree of ...

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Номер записи: 18
05-03-2014 дата публикации

Filling-modified polypropylene material

Номер: CN103613847A
Автор: WENG YONGHUA, WANG LIWEN, LI QINGGUI, DING XIANLIN
Принадлежит:

The invention discloses a filling-modified polypropylene material. The filling-modified polypropylene material consists of the following components in parts by weight: 60-70 parts of polypropylene, 15-20 parts of metallocene polyolefin elastomer, 1-3 parts of a flexibilizer, 1-5 parts of an antioxidant, 2-5 parts of a heat stabilizer, 8-15 parts of a compatilizer, 10-12 parts of glass fiber and 6-10 parts of inorganic filler. According to the filling-modified polypropylene material disclosed by the invention, mechanical performance of the material is improved by filling modification of polypropylene, therefore, the filling-modified polypropylene material is convenient to process and wide in scope of application.

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Номер записи: 19
16-07-2014 дата публикации

High impact extinctive ABS (Acrylonitrile Butadiene Styrene) modified plastic and preparation method thereof

Номер: CN103923432A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention discloses a high impact extinctive ABS (Acrylonitrile Butadiene Styrene) modified plastic and a preparation method thereof. The high impact extinctive ABS modified plastic comprises the following components in percentage by weight: 72-86% of ABS, 10-15% of a heat-resisting assistant, 2-5% of a flexibilizer, 0.1-0.5% of a crosslinking agent, 1-5% of a delustering agent SEBS (Styrene-Ethylene-Butylene-Styrene Block Copolymer) and 0.2-0.6% of an antioxidant. The preparation method disclosed by the invention is simple and feasible and low in cost of raw materials, and not only is the extinctive effect effectively ensured, but also the problem on dispersibility of the SEBS in a compound material is solved by introducing an extinctive system where the SEBS and the crosslinking agent are compounded into a heat-resisting ABS system, so that the mechanical properties of the material such as impact are improved. The prepared high impact extinctive ABS modified plastic is very suitable ...

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Номер записи: 20
28-01-2015 дата публикации

Impact-resisting polypropylene composite material and preparation method thereof

Номер: CN104311988A
Автор: WANG LIWEN, LI QINGGUI, WENG YONGHUA, DING XIANLIN
Принадлежит:

The invention discloses an impact-resisting polypropylene composite material. The impact-resisting polypropylene composite material comprises the following components in parts by weight: 100 parts of PPB, 15 to 20 parts of metallocene polyolefin elastomer, 20 to 35 parts of nano calcium carbonate, 5 to 8 parts of enhancer, 1 to 3 parts of compatilizer, 0.5 to 1 part of antioxidant, 1 to 2 parts of antistatic agent and 1 to 3 parts of flame retardant agent. The invention also discloses a preparation method of the impact-resisting polypropylene composite material. The polypropylene material is modified by adding the metallocene polyolefin elastomer into a polypropylene raw material, so that the impact resistance of the composite is greatly improved; by adding the nano calcium carbonate, not only can the rigidness, heat resistance and size stability of the composite material be improved, but also the flexibility of the composite material is further improved; moreover, the composite material ...

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Номер записи: 21