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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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Применить Всего найдено 4. Отображено 4.
15-08-2023 дата публикации

Anti-aging anti-static elastomer material and preparation method thereof

Номер: CN116589850A
Автор: XIANG SAIFEI, YING JIANBO, MAO SHIHUA, YANG JINTAO
Принадлежит:

The invention belongs to the technical field of high polymer materials, and particularly relates to an anti-aging anti-static elastomer material and a preparation method thereof. An anti-aging agent containing a carbon-carbon double bond and a benzene ring and an antistatic agent containing a carbon-carbon double bond and a quaternary ammonium structure are used for modifying graphene oxide through a free radical reaction, and the elastomer material with ultrahigh aging resistance and antistatic performance is obtained. The preparation method comprises the following steps: (1) adding a mixed solution of a silane coupling agent and ethanol into ethanol dispersion liquid of graphene oxide, heating for reaction, and washing to obtain modified graphene oxide I; (2) adding the modified graphene oxide I, an anti-aging agent and an antistatic agent into ethanol under the protection of nitrogen, then adding an initiator for free radical reaction, washing and drying to obtain modified graphene oxide ...

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Номер записи: 1
23-06-2023 дата публикации

Halogen-free flame-retardant irradiation crosslinking polyolefin cable material and preparation method thereof

Номер: CN116285081A
Автор: XIANG SAIFEI, YING JIANBO, LING GUANGPU, YANG JINTAO, WANG LVXING, HE XITING
Принадлежит:

The invention belongs to the technical field of composite materials, and particularly relates to a halogen-free flame-retardant irradiation crosslinking polyolefin cable material and a preparation method thereof. According to the technical scheme, the halogen-free flame-retardant irradiation crosslinking polyolefin cable material is prepared from the following components in parts by mass: 80 to 90 parts of polyolefin resin, 5 to 20 parts of crosslinking aid, 60 to 100 parts of composite halogen-free flame retardant, 10 to 20 parts of compatilizer, 0.5 to 2.0 parts of antioxidant and 0.5 to 2.0 parts of dispersing agent. The cross-linking assistant is prepared by mixing and reacting raw materials including polyhedral oligomeric silsesquioxane and DOPO, and the preparation method comprises the following steps: S1, weighing dried polyhedral oligomeric silsesquioxane and DOPO, respectively adding an organic solvent, and stirring and dissolving to obtain a first solvent and a second solvent; ...

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Номер записи: 2
18-04-2023 дата публикации

High-water-resistance halogen-free flame-retardant polyurethane composite material and preparation method thereof

Номер: CN115975376A
Автор: YING JIANBO, XIANG SAIFEI, WANG LVXING, YANG JINTAO
Принадлежит:

The invention belongs to the field of polyurethane cable composite materials, and relates to a high-water-resistance halogen-free flame-retardant polyurethane composite material and a preparation method thereof. According to the invention, the sheet-shaped barrier material modified by the silane coupling agent with the amino group and the flame retardant modified by the silane coupling agent with the epoxy group are stirred in a high-speed mixer at high temperature, and due to the reaction of the amino group and the epoxy group at high temperature and the electrostatic adsorption effect between the sheet-shaped barrier material and the flame retardant, the flame retardant property is improved; according to the invention, the surface of the flame retardant is modified by a sheet-shaped nano barrier material through double actions of chemical grafting and electrostatic adsorption, so that the sheet-shaped nano barrier material is combined with the surface of the flame retardant more firmly ...

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Номер записи: 3
25-04-2023 дата публикации

Preparation method of antifouling foaming polyurethane elastomer

Номер: CN116003869A
Автор: YING JIANBO, XIANG SAIFEI, WANG XIAOYU, YANG JINTAO
Принадлежит:

The invention belongs to the technical field of marine materials, and particularly relates to a preparation method of an antifouling foaming polyurethane elastomer. The preparation method of the antifouling foaming polyurethane elastomer comprises the following steps: carrying out supercritical foaming on polyurethane with carbon-carbon double bonds on a side chain to obtain a foaming polyurethane elastomer, and then immersing the foaming polyurethane elastomer into a mixed aqueous solution of an amphoteric compound and an initiator to initiate a reaction to obtain the antifouling foaming polyurethane elastomer. Polyurethane with a carbon-carbon double bond on a side chain is foamed to prepare a porous light polyurethane elastomer, and finally, the antifouling foaming polyurethane elastomer is obtained through surface modification initiated by free radicals, can keep a stable structure in a complex marine environment, is good in material substrate durability, and has a long-term stable ...

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Номер записи: 4