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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 7. Отображено 7.
01-05-2013 дата публикации

Polyphosphoester expanding flame retardant and preparation method thereof

Номер: CN103073727A
Автор: Fang Zhengping, Liu Yan, Zhang Yan, Cao Zhenhu
Принадлежит:

The invention discloses a polyphosphoester expanding flame retardant. A chemical structure of the flame retardant is as shown as in the specification, wherein R is a C2-C4 linear chain, isoparaffin, aromatic nucleus, diethylidene amine and cyclohexyl; A1, A2, A3 and A4 are H atoms or methyl; R2 is a C1-C4 linear chain, isoparaffin and aromatic nucleus; and n is an integer within 1-1000. The flame retardant is free of halogen, and belongs to a green and environment-friendly flame retardant. The invention further discloses a preparation method of the flame retardant. The method comprises the steps that a hydroxyaldehyde compound reacts with a diamine compound, or a dialdehyde compound reacts with a hydroxy amine compound; dihydric phenol schiff base is obtained; dihydric phenol schiff base reacts with a phosphorous acid diester compound containing an active P-H bond; a phosphorus-containing compound containing phenolic hydroxyl at the two ends of a molecule is obtained; the obtained phosphorus-containing ...

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Номер записи: 1
27-11-2013 дата публикации

Polyethylene/fullerene nano-composite material and preparation method thereof

Номер: CN103408821A
Автор: Zhao Liping, Guo Zhenghong, Fang Zhengping
Принадлежит:

The invention discloses a polyethylene/fullerene nano-composite material and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 0.05-5 parts of fullerene, and 95-99.95 parts of polyethylene. The preparation method comprises the steps of directly drying fullerene, and then adding the dried fullerene in high-density polyethylene and performing melt blending, wherein the prepared polyethylene nano-composite material has high heat stability. Due to preparation of polyethylene with high heat stability, the application range of polyethylene is expanded.

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Номер записи: 2
11-09-2013 дата публикации

Glass fiber enhanced poly(ethylene terephthalate) nano flame-retardant composite material and preparation method thereof

Номер: CN103289332A
Автор: Guo Zhenghong, Chen Chao, Ran Shiya, Liu Zengyong, Fang Zhengping
Принадлежит:

The invention discloses a glass fiber enhanced poly(ethylene terephthalate) nano composite material and a preparation method thereof. The composite material is prepared from the following components in percentage by weight: 80-100% of glass fiber enhanced poly(ethylene terephthalate), 0-10% of phenyl phosphonic acid rare-earth salt, 0-15% of a halogenous flame retardant and 0-3% of an antioxidant, wherein the sum of the weight percentages of the components is 100%. The composite material has the advantages as follows: under the condition that the use amount of the flame retardant is low, the oxygen index is up to 29 and can pass through a V-0 level test of UL94, and nano-particles are well dispersed in poly(ethylene terephthalate). The nano composite material provided by the invention that the preparation method is simple, the use amount of the flame retardant is small and the flame-retardant effect is good. the nano composite material can be widely applied to the fields of mechanical equipment ...

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Номер записи: 3
17-10-2012 дата публикации

Phosphorus-containing Schiff base derivative intumescent fire retardant and preparation method thereof

Номер: CN102732041A
Автор: Fang Zhengping, Liu Yan, Zhang Yan, Cao Zhenhu
Принадлежит:

The invention discloses a phosphorus-containing Schiff base derivative intumescent fire retardant and a preparation method thereof. The method comprises the following steps: reacting hydroxy-aldehyde compounds with diamine compounds or reacting diamine compounds with hydroxy-amine compounds to obtain imine-diphenol, wherein two terminals of the molecule of imine-diphenol have phenolic hydroxyl groups and the skeleton of the imine-diphenol molecule contains a Schiff base structure; and allowing obtained diphenol Schiff base and phenyl dichlorophosphate to undergo interfacial polymerization under the action of a catalyst so as to obtain intumescent fire retardants with different phosphorus and nitrogen content. The synthetic method provided in the invention has the advantages of a simple process, easy reaction operation and suitability for industrial production; and the prepared fire retardant does not contain halogen, belonging to green environment-friendly fire retardants, and has a general ...

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Номер записи: 4
01-05-2013 дата публикации

Phenyl phosphonic acid rare-earth salt compounded system flame-retardant glass fiber enhanced PET material and preparation method thereof

Номер: CN103073856A
Автор: Chen Chao, Cai Yuanzheng, Guo Zhenghong, Fang Zhengping, Ye Chen, Luan Guojun
Принадлежит:

The invention discloses a phenyl phosphonic acid rare-earth salt compounded system flame-retardant glass fiber enhanced PET (GF-PET) material. The material comprises the components in percent by weight: 80-100 percent of GF-PET, 0-10 percent of phenyl phosphonic acid rare-earth salt, 0-15 percent of microencapsulated red phosphorus and 0-3 percent of anti-oxidant. The preparation method comprises the following steps: preparing the phenyl phosphonic acid rare-earth salt through phenyl phosphonic acid and rare-earth salt via a solution reflux method, then compounding the synthesized phosphorus rare-earth salt and the microencapsulated red phosphorus, and finally applying to the flame-retardant GF-PET through a melt blending method. The flame-retardant PET can pass a UL94 V-0 level test under the condition of less flame retardant consumption and is improved in extension performance. The preparation method for the synthesized composite material is simple and environment-friendly, and can be ...

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Номер записи: 5
11-07-2012 дата публикации

Synthesis method of transparent block copolymer

Номер: CN102558466A
Автор: Tao Chunfeng, Zhang Yan, Peng Chong, Zhuang Ming, Fang Zhengping, Hu Xuanzhe
Принадлежит:

The invention discloses a synthesis method of transparent block copolymer, which comprises the following steps of: mixing diluent and polar compounds of 60 to 90 percent of the total weight of diluent, initiator of 40-70 percent and monovinylarene aryl hydrocarbon of 20-30 percent of total monomer under conditions with no water or oxygen but with high-purity argon, and vigorously stirring for 40-80min at 50-80 DEG C; adding monovinylarene aryl hydrocarbon of 13-22 percent of total monomer, and stirring 40-80min; adding conjugated diene of 4-7 percent of total monomer, and stirring for 40-80min; adding initiator of 30-60 percent and monovinylarene of 18-25 percent of total monomer, and stirring for 40-80min; adding conjugated diene of 18-20 percent of total monomer into a polymerization reactor, and making mixture react for 40-80min; adding monovinylarene aryl hydrocarbon into the polymerization reactor, making mixture reactor for 40-80 min, and adding CO2; and adding methanol or ethanol ...

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Номер записи: 6
20-11-2013 дата публикации

Preparation method of graphene nanoplatelet/epoxy resin nanocomposite material

Номер: CN103396653A
Автор: Yan Hongqiang, Fang Zhengping, Liu Shan
Принадлежит:

The invention provides a preparation method of a graphene nanoplatelet/epoxy resin nanocomposite material. The preparation method comprises the following operating steps of: dispersing graphene nanoplatelets in an organic solvent, putting the organic solvent into an ultrasonic apparatus, carrying out ultrasonic treatment on the materials in an ice bath with power more than or equal to 250W for 1.5 hours, and simultaneously stirring the materials; adding epoxy resins, carrying out ultrasonic treatment in the ice bath with power more than or equal to 250W for 1.5 hours, and simultaneously stirring; putting the materials into an oil bath, raising the temperature to the boiling point of the used organic solvent, simultaneously stirring for 5-15 hours, and then putting the materials into a vacuum oven to be decompressed and heated for 2 hours; cooling to room temperature, adding a curing agent according to the usage amount of the epoxy resins, and stirring the materials for 0.5 hour; and putting ...

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Номер записи: 7