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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 7. Отображено 7.
21-01-2004 дата публикации

端羟基丁苯液体橡胶的合成方法

Номер: CN0001468875A
Автор: QI YONGXIN, ZHAO XIAOLONG, HAO QI, YONGXIN QI, XIAOLONG ZHAO, QI HAO, 齐永新
Принадлежит:

The present invention relates to the synthesis of end hydroxy styrene-butadiene liquid rubber, and is especially the free radical polymerization of butadiene monomer and styrene monomer inside organic ketone or C1-C6 organic alcohol solvent in the presence of organic peroxide as initiator. The present invention features the polymerization mode with batchwise added material. The end hydroxy styrene-butadiene liquid rubber of the present invention has high molecular weight, narrow molecular weight distributing range, functionality near 2, copolymerized chain segment of butadiene and styrene in the multi-molecular chain, and excellent comprehensive product performance. The product may be used in solid tyre, polyurethane adhesive, solid rubber plasticizer, elastic polyurethane material, and other fields.

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Номер записи: 1
06-06-2023 дата публикации

Preparation method of ferrocene burning rate catalyst

Номер: CN116217631A
Автор: ZHOU KANG, QI YONGXIN, QIANG ZHELIN, LYU DEBIN
Принадлежит:

The invention provides a preparation method of a ferrocene burning rate catalyst, which comprises the following steps: 1) mixing and reacting raw materials in a microchannel continuous flow reactor to obtain a reaction solution; the raw materials comprise ferrocene, a derivatization reagent and a catalyst, and the derivatization reagent is selected from an alkylation reagent or an acylation reagent; and 2) carrying out purification treatment on the reaction liquid in a film evaporator to obtain the ferrocene burning rate catalyst, and the outlet of the micro-channel continuous flow reactor is communicated with the inlet of the film evaporator. According to the method, the microchannel continuous flow reactor is connected with the film evaporator in series to serve as a preparation device, the ferrocene burning rate catalyst is efficiently prepared through a one-step method, and the method has the advantages of being high in yield, simple in process and environmentally friendly.

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Номер записи: 2
21-01-2004 дата публикации

一种端羟基聚丁二烯-苯乙烯液体橡胶的合成方法

Номер: CN0001468877A
Автор: QI YONGXIN, HAO QI, ZHAO XIAOLONG, YONGXIN QI, QI HAO, XIAOLONG ZHAO, 齐永新
Принадлежит:

The present invention relates to the synthesis of end hydroxy styrene-butadiene liquid rubber, and is especially the free radical polymerization of butadiene monomer and styrene monomer inside organic ketone or C1-C6 organic alcohol solvent in the presence of organic peroxide as initiator. The present invention features the reaction terminator used after reaction. The end hydroxy styrene-butadiene liquid rubber of the present invention has high molecular weight, narrow molecular weight distributing range, functionality near 2, copolymerized chain segment of butadiene and styrene in the multi-molecular chain, and excellent comprehensive product performance. The product may be used in solid tyre, polyurethane adhesive, solid rubber plasticizer, elastic polyurethane material, and other fields.

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Номер записи: 3
04-04-2023 дата публикации

Epoxy rubber

Номер: CN115894864A
Автор: WANG QI, XIA JIABIN, QI YONGXIN, ZHU YUE, LYU DEBIN, LIU XUEDAN, GU XIAOYING
Принадлежит:

The invention provides epoxy rubber. The epoxy rubber comprises the following components in parts by mass: 100 parts of an epoxy rubber body; 0.1-20 parts of a curing agent; 0-0.05 part of an organic metal salt curing catalyst; 0-20 parts of a diluent; wherein the epoxy rubber body has a structural formula as shown in a formula 1; in the formula 1, R1 is selected from a polybutadiene block, a butadiene acrylonitrile copolymerization block, a butadiene styrene copolymerization block, a butadiene acrylic acid acrylonitrile copolymerization block, a butadiene acrylate copolymerization block, a butadiene-isoprene copolymerization block and any one of saturated and hydrogenated blocks; r2 and R3 are respectively and independently selected from C5-C20 alkyl groups, substituted or unsubstituted phenyl groups, substituted or unsubstituted alicyclic groups or substituted or unsubstituted benzyl groups; and n is 0 or 1. The epoxy rubber can be cured and molded at room temperature, and the cured epoxy ...

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Номер записи: 4
07-04-2023 дата публикации

Polymer as well as preparation method and application thereof

Номер: CN115926023A
Автор: QI YONGXIN, ZHANG FENMING, LI XUAN, DUO SHENGLIANG, LYU DEBIN
Принадлежит:

The invention provides a polymer as well as a preparation method and application thereof. The polymer has a structure as shown in a formula 1. Due to the special composition of the polymer, the polymer not only has an excellent energy level, but also has excellent compound compatibility, so that the energy level and the mechanical property of the solid propellant can be remarkably improved.

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Номер записи: 5
21-01-2004 дата публикации

一种丁苯羟液体橡胶的合成方法

Номер: CN0001468876A
Автор: QI YONGXIN, ZHAO XIAOLONG, HAO AI, YONGXIN QI, XIAOLONG ZHAO, AI HAO, 齐永新
Принадлежит:

The present invention relates to the synthesis of end hydroxy styrene-butadiene liquid rubber, and is especially the free radical polymerization of butadiene monomer and styrene monomer inside organic ketone or C1-C6 organic alcohol solvent in the presence of organic peroxide as initiator. The present invention features the reaction inhibitor used before the reaction and the reaction terminator used after reaction. The end hydroxy styrene-butadiene liquid rubber of the present invention has high molecular weight, narrow molecular weight distributing range, functionality near 2, copolymerizedchain segment of butadiene and styrene in the multi-molecular chain, and excellent comprehensive product performance. The product may be used in solid tyre, polyurethane adhesive, solid rubber plasticizer, elastic polyurethane material, and other fields.

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Номер записи: 6
23-05-2023 дата публикации

Preparation method of p-benzoquinone dioxime with controllable morphology

Номер: CN116143654A
Автор: ZHOU KANG, QI YONGXIN, XU HUIHUI, LYU DEBIN, XIAO DINGYUAN
Принадлежит:

The invention provides a shape-controllable p-benzoquinone dioxime preparation method, which comprises: 1) adding a p-benzoquinone dioxime crude product into a first solvent, and carrying out first reflux treatment to obtain a first solution; 2) adding a second solvent into the first solution for second reflux treatment to obtain a second solution; and 3) carrying out post-treatment on the second solution to obtain a pure p-benzoquinone dioxime product, wherein at the temperature of 25 DEG C, the solubility of the p-benzoquinone dioxime in the first solvent is smaller than 0.01 g/L, and the solubility of the p-benzoquinone dioxime in the second solvent is larger than 10 g/L. The method can effectively solve the problems of single morphology, non-uniform particle size and unstable property of the existing p-benzoquinone dioxime.

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Номер записи: 7