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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 10. Отображено 10.
06-03-2013 дата публикации

Preparation method of antistatic powdery neoprene

Номер: CN102952302A
Автор: Liang Tao, Wei Xuling, Liu Baoyong, Cao Fengxia, Gong Guangbi, Zheng Jucheng, Gui Qiang, Xu Dianhong, Zhao Hongguo
Принадлежит:

The invention relates to antistatic powdery neoprene prepared with a direct condensation pulverization technology. The method comprises the steps that: (1) starch modification is carried out, wherein water and starch are added into a reaction flask, stirring and heating are carried out, alkali solution and dibasic acid are dropped alternately, and a certain pH value is regulated after the reaction is stopped, such that modified starch is prepared; (2) a grafted latex is prepared, wherein neoprene latex, water, the modified starch, an antistatic agent, and a molecular weight adjusting agent are added into a polymerization vessel; stirring and heating are carried out; an initiator and an activator are added; and when a graft polymerization conversion rate reaches a certain value, a terminating agent is added, such that the grafted latex is prepared; and (3) condensation and powder-formation are carried out, wherein the grafted latex, a separating agent, a flocculating agent, and a coagulating ...

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Номер записи: 1
06-03-2013 дата публикации

Preparation method of oil resistant enhanced styrene-butadiene rubber polymer particles

Номер: CN102952301A
Автор: Wei Xuling, Liang Tao, Liu Baoyong, Fu Hanqi, Wei Yuli, Gong Guangbi, Zheng Jucheng, Xu Dianhong, Zhao Hongguo, Wang Zhenqin, Ai Chunjin, Zhu Jing
Принадлежит:

The invention relates to a preparation method of oil resistant enhanced styrene-butadiene rubber polymer particles. The method comprises the steps that: (1) starch gelatinization modification is carried out, wherein starch and water are added into a reactor; the mixture is stirred such that starch paste is obtained; and a phenolic solution is added, such that modified starch is obtained; (2) enhanced copolymerized styrene-butadiene latex is prepared, wherein water, styrene, an emulsifying agent, and a molecular weight adjusting agent are added into a polymerization vessel; nitrogen is used for replacing; butadiene, isoprene, and the modified starch are added, and a copolymerization reaction is carried out; (3) latex grafting is carried out, wherein water, the enhanced copolymerized styrene-butadiene latex are sequentially added into the polymerization vessel; and polyvinyl chloride is added for carrying out grafting polymerization; and (4) condensation and powder-formation are carried out ...

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Номер записи: 2
22-01-2014 дата публикации

Rubber composition for tire treads and preparation method thereof

Номер: CN103524796A
Автор: Zhao Zhichao, Zhao Xutao, Ma Penggao, Lu Xiang, Hu Yulin, Wang Yongfeng, Li Xiaoyan, Shao Wei, Li Bo, Zheng Jucheng, Li Jing, Zhao Hongguo, Chen Jiangang, Hu Haihua, Wang Zhenhua, Chen Dongping, Li Tiezhu, Ying Jicheng
Принадлежит:

The invention relates to a rubber composition for tire treads and a preparation method thereof. The rubber composition contains the following components in parts by weight: 100 parts of main body rubber, 10-60 parts of carbon black and 0.5-3 parts of vulcanizing agent; and the main body rubber comprises (1) 10-100 wt% of nano silicon dioxide/poly conjugated diene modified rubber and (2) 0-90 wt% of diene rubber, totaling 100%. The nano silicon dioxide/poly conjugated diene modified rubber is prepared by the following steps: blending diene rubber latex and nano silicon dioxide/poly conjugated diene composite emulsion, condensing, demulsifying, and coprecipitating. The mass ratio of the diene rubber latex to the nano silicon dioxide/poly conjugated diene composite emulsion on dry basis is 100:(0.1-100); and every 100 parts of emulsion on dry basis contains 0.1-5 parts of surface functional modified nano silicon dioxide. The particle size of the nano silicon dioxide/poly conjugated diene composite ...

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Номер записи: 3
15-01-2014 дата публикации

Weathering resistance fluorescence rubber and preparation method thereof

Номер: CN103509213A
Автор: Hu Yulin, Liang Tao, Zhao Zhichao, Li Bo, Zheng Jucheng, Wang Yongfeng, Ma Penggao, Zhai Yunfang, Shao Wei, Gui Qiang, Zhao Hongguo
Принадлежит:

The present invention relates to a weathering resistance fluorescence rubber preparation method. The weathering resistance fluorescence rubber mainly comprises: (1) a stable fluorescence system, wherein the system comprises an organic fluorescence substance, an acid monomer prepolymer, an initiator, nanometer titanium dioxide, and a co-solvent; (2) a rubber; and (3) a rubber auxiliary agent, wherein the rubber auxiliary agent mainly comprises a vulcanizing agent, an accelerator, an active agent, an anti-aging agent, a reinforcing agent and the like. The obtained fluorescence rubber has fluorescence emission of 480-550 nm.

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Номер записи: 4
17-07-2013 дата публикации

Oil-extended powdery rubber preparation method

Номер: CN103204959A
Автор: Ai Chunjin, Yuan Li, Zhao Hongguo, Wang Feng, Zheng Hongbing, Fu Yan, Gong Guangbi, Zhao Xutao, Zheng Jucheng, Liang Tao, Li Jing, Li Shuyi, Wang Tong, Yang Haijiang, Yang Jianting, Zhang Songxian, Xu Dianhong, Wei Xuling, Chen Jiangang, Shao Wei
Принадлежит:

An oil-extended powdery rubber preparation method is characterized in that an isolation agent containing a polymerizable function group is covered on the external surfaces of oil-extended rubber particles, and a chemical reaction among molecules of the isolation agent and between the isolation agent and the rubber molecule is carried out under the action of an initiator to generate a polymer or a crosslink bond; the polymerization in the molecules of the isolation agent generates a compact isolation agent polymer layer on the surfaces of the rubber particles, and the isolation agent polymer layer can greatly alleviate the outward penetration of filled oil; and the polymerization between the isolation agent molecule and the rubber molecule makes the isolation agent layer be firmly wrapped on the surfaces of the rubber particles, and cooperates with calcium ions of the external layer of the isolation agent to realize a good isolation effect. The method can be used for oil-in-rubber condensation ...

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Номер записи: 5
18-12-2013 дата публикации

Emulsion polymerization method for preparing tractable butadiene styrene rubber

Номер: CN103450396A
Автор: Zhang Yuanshou, Zhang Yin, Zhong Qilin, Ji Jiangdong, Zhao Hongguo, Zheng Hongbing, Li Jing, Wang Zhenqin, Zhai Yunfang, Xu Dianhong, Dong Wanzhuo, Kang Anfu
Принадлежит:

The invention relates to an emulsion polymerization method for preparing a tractable butadiene styrene rubber. The polymerization method comprises at least the following steps: adding part of styrene (an oil phase) and part of an emulsifier (an aqueous phase), a regulator and an initiator into a polymerization kettle; adding butadiene; carrying out emulsion polymerization with stirring; and when conversion rate of the polymerization reaction in the middle stage reaches 30-60%, refilling the emulsifier, the crosslinking agent, styrene and the regulator by one or more times. The styrene butadiene rubber prepared by the method provided by the invention has high micro gel content and low gel content; coupled with the electron cloud effect of the pi bonds in the benzene ring of the molecular chain, a three-dimensional net shape structure is easy to form in the processing process; and the rubber product has good physical and mechanical properties, increased Mooney viscosity, and correspondingly ...

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Номер записи: 6
14-11-2012 дата публикации

Carbon black-containing modified rubber and its preparation method

Номер: CN102775657A
Автор: Zhao Xutao, Hu Caizhong, Zhang Huaqiang, Dong Jing, Li Yanqin, Hu Yulin, Gao Dujuan, Cui Ying, Zhao Hongguo, Song Tongjiang, Li Xiaoyan, Gong Guangbi, Liang Tao, Li Jing, Tao Huiping
Принадлежит:

The invention provides a carbon black-containing modified rubber. Specifically, the carbon black is in covalent bond connection with rubber through a group containing carbamate and tetrazole. The carbon black accounts for 10%-60% of the weight of the rubber, which is calculated in terms of the mass of raw rubber. The invention also provides a preparation method of the modified rubber: reacting hydroxyl-containing carbon black with brominated isocyanate for 10-30 hours; then adding sodium azide for reaction for 10-48 hours; adding rubber and a Cu (I) catalyst for reaction for 24-72 hours; and carrying out washing as well as drying, thus obtaining the carbon black-containing modified rubber.

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Номер записи: 7
22-01-2014 дата публикации

Rubber composition and preparation method thereof

Номер: CN103524811A
Автор: Zhao Zhichao, Zhao Xutao, Ma Penggao, Li Xiaoyan, Hu Yulin, Wang Yongfeng, Lu Xiang, Shao Wei, Li Bo, Zheng Jucheng, Li Jing, Zhao Hongguo, Chen Jiangang, Hu Haihua, Wang Zhenhua, Chen Dongping, Li Tiezhu, Ying Jicheng
Принадлежит:

The invention relates to a rubber composition and a preparation method thereof. The rubber composition comprises the following components in parts by weight: 100 parts of diene rubber, 0.5-3 parts of vulcanizing agent and 1-100 parts of nano silicon dioxide/poly conjugated diene functional composite emulsion-carbon black slurry co-condensation mixture. The co-condensation mixture is prepared by the following steps: dispersing 10-50 parts by mass of carbon black on solid basis in water to form the carbon black slurry, and uniformly mixing with 100 parts by mass of nano silicon dioxide/poly conjugated diene functional composite emulsion on dry basis. The rubber composition is characterized in that every 100 parts of nano silicon dioxide/poly conjugated diene functional composite emulsion contains 0.1-5 parts by mass of surface functional modified nano silicon dioxide on dry basis. The particle size of the nano silicon dioxide/poly conjugated diene composite emulsion is 50-80 nm, the number-average ...

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Номер записи: 8
22-01-2014 дата публикации

Rubber mixture and preparation method thereof

Номер: CN103524803A
Автор: Zhao Zhichao, Gong Guangbi, Ma Penggao, Li Xiaoyan, Hu Yulin, Wang Yongfeng, Li Bo, Shao Wei, Zhai Yunfang, Zheng Jucheng, Li Jing, Zhao Hongguo, Chen Jiangang, Hu Haihua, Wang Zhenhua, Chen Dongping, Qin Chuangao, Zheng Hongbing
Принадлежит:

The invention discloses a rubber mixture. The mixture is prepared through dispersing 10-50 parts of carbon blacks by solid mass in deionized water so as to form a carbon black slurry, uniformly mixing the carbon black slurry with 100 parts of nano silica/poly conjugated dienes functional composite emulsion by dry basis mass, and condensing the obtained product, wherein on the basis that the dry basis mass of the emulsion is 100 parts, the nano silica/poly conjugated dienes functional composite emulsion contains 0.1-5 parts of surface functionalization modified nano silica; the particle size of the nano silica/poly conjugated dienes functional composite emulsion is 50-80 nm, the number-average molecular weight is 100000-140000, and the molecular weight distribution is 2-3.

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Номер записи: 9
19-06-2013 дата публикации

Preparation method of flame retardant type separant

Номер: CN103159611A
Автор: Ai Chunjin, Zhao Xutao, Zheng Jucheng, Gong Guangbi, Xu Dianhong, Zhu Jing, Wei Xuling, Zhao Hongguo, Zhao Zhichao, Liang Tao, Li Jing, Li Shuyi, Liu Chaowei, Gao Yangguang, He Ying, Li Bo, Kang Anfu
Принадлежит:

Aiming at spontaneous combustion caused by improper dispose in storage and transportation of powder rubber, the invention provides a preparation method of a flame retardant type separant. The method is as below: conducting an addition reaction on a halogen donor of carbon tetrachloride and a halogen acceptor of unsaturated fatty acid, and saponifying by a sodium hydroxide aqueous solution, so as to prepare the separant with flame retardant function. The flame retardant type separant can be used in condensation process of rubber latex and preparation of powder rubber product with flame retardance, and can guarantee safety of product storage and transportation process.

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Номер записи: 10