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

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Применить Всего найдено 11. Отображено 11.
23-06-2010 дата публикации

Silicone fireproof sealant for construction and preparation method thereof

Номер: CN0101747859A
Автор: CHEN SHILONG, DING XIAOLIN, GAO CHUANHUA, LIU HUA, YANG JING, ZHANG HUIJUN, ZHU LIDAN, SHILONG CHEN, XIAOLIN DING, CHUANHUA GAO, HUA LIU, JING YANG, HUIJUN ZHANG, LIDAN ZHU
Принадлежит:

The invention discloses a silicone fireproof sealant for construction and a preparation method thereof. The preparation comprises the steps of adding alpha, omega-dihydroxy polysiloxane, a filler, an inorganic flame retardant and a nitrogen system flame retardant into a kneading machine, carrying out dehydration at the temperature of 100-180 DEG C and the vacuum degree of 0.06-0.1MPa for 0.5-4 hours, cooling, and then preparing a base material. The base material, polydimethylsiloxane, an inorganic pigment, a crosslinking agent, a silane coupling agent and a catalyst are added into a planetary mixer at the room temperature, keeping the vacuum degree at 0.06-0.1MPa, stirring at the speed of 20-80 r/min, carrying out reaction under stirring for 0.5-6 hours, and preparing the silicone fireproof sealant for construction with no pollution to the base material, flame retardance and excellent adhesion and storage stability. The inorganic flame retardant and the nitrogen system flame retardant are ...

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Номер записи: 1
07-09-2011 дата публикации

Flame-retardant high-temperature vulcanized silicone rubber strips for doors and windows of buildings and preparation method thereof

Номер: CN0101787846B
Автор: CAI SHOUXIN, CHEN SHILONG, CHENG YANFEN, GAO CHUANHUA, WANG XIANGDI, XU QINGQING, SHOUXIN CAI, SHILONG CHEN, YANFEN CHENG, CHUANHUA GAO, XIANGDI WANG, QINGQING XU
Принадлежит:

The invention discloses flame-retardant high-temperature vulcanized silicone rubber strips for doors and windows of buildings and a preparation method thereof. The method comprises the following steps: adding methyl vinyl silicone rubber, an inorganic flame retardant, fillers and a structural control agent into a kneading machine, dehydrating the mixture at the temperature of between 100 and 180 DEG C and the vacuum degree of between -0.06 and -0.10 MPa for 0.5 to 4 hours, and then cooling the mixture to produce compound rubber; thinning and milling masterbatch rubber, a vulcanizing agent andthe compound rubber for 3 to 5 times at room temperature on a mill; cutting thinned compound rubber sheet into rubber strips with the width of between 4 and 6 centimeters and feeding the rubber strips to a screw extruder to extrude the rubber strips; and vulcanizing and forming the rubber strips through a high-temperature drying channel and finally performing a secondary vulcanization in a dryingbox ...

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Номер записи: 2
23-07-2008 дата публикации

Method for synthesizing water-dispersion organosilicon-polyurethane block copolymer

Номер: CN0101225150A
Автор: ZHENG QIANG, LIN WEIWEI, GAO CHUANHUA, HUA JIJUN, NI JIANI, CHEN SHILONG, MA TINGFANG, QIANG ZHENG, WEIWEI LIN, CHUANHUA GAO, JIJUN HUA, JIANI NI, SHILONG CHEN, TINGFANG MA
Принадлежит:

The invention discloses a synthesis method for waterborne organocilicon-polyurethane block copolymer, comprising steps as follows: reaction is carried out between polyisocyanate and polyol (the polyol comprises the one from the castor oil and carboxyl polyol) to generate isocyanate-terminated polyurethane prepolymer; then chain extension is carried out via amino alkyl polysiloxane; eventually alkaline aqueous solution is adopted for neutralization and dispersion, to prepare aqueous dispersion with excellent dispersion and stability. In addition, the aqueous dispersion is applied as coating for the wood and paper, as finishing agent for leathers and textiles, or as adhesives. Since natural vegetable oil from castor beans is selected and amino alkyl polysiloxane is adopted as the chain extender. The synthesis method for waterborne organocilicon-polyurethane block copolymer has the advantages of remarkably improved hydrophobic property, heat resistance and surface smoothness for the polymer ...

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Номер записи: 3
28-07-2010 дата публикации

Organosilicon emulsion-type waterproofing agent for building material surfaces and preparation method thereof

Номер: CN0101786901A
Автор: SHILONG CHEN, CHUANHUA GAO, JINHUA WANG, JING YANG, HUIJUN ZHANG, LIDAN ZHU, CHEN SHILONG, GAO CHUANHUA, WANG JINHUA, YANG JING, ZHANG HUIJUN, ZHU LIDAN
Принадлежит:

The invention discloses an organosilicon emulsion-type waterproofing agent for building material surfaces and a preparation method thereof. The preparation method comprises the following steps: (1) adding water and an emulsifying agent into a reaction kettle, heating to 40-90 DEG C, uniformly stirring, adding a long-chain alkyl alkoxy silane, pre-emulsifying for 2-6 hours at this temperature, and cooling; (2) and emulsifying the pre-emulsion in a high-speed emulsifying machine at high speed for 0.5-2 hours, adding a germicide, a buffering agent, an accelerant and other accessory ingredients, continuing emulsifying at high speed for 0.5-2 hours, and cooling to obtain the organosilicon emulsion-type waterproofing agent for the building material surfaces. The emulsion-type waterproofing agent can be used for the surfaces of the building materials, such as stone, concrete, bricks, cement mortar and the like, and has the functions of waterproofing, impermeability, color protection, ventilation ...

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Номер записи: 4
24-11-2010 дата публикации

Method for preparing water-dispersion montmorillonite/organic block polyurethane nano composite material and uses thereof

Номер: CN0101225226B
Автор: ZHENG QIANG, MA TINGFANG, LIN WEIWEI, CHEN SHILONG, YANG YANYAN, GAO CHUANHUA, NI JIANI, HU HUIXIA, QIANG ZHENG, TINGFANG MA, WEIWEI LIN, SHILONG CHEN, YANYAN YANG, CHUANHUA GAO, JIANI NI, HUIXIA HU
Принадлежит:

The invention discloses a preparation method of water dispersible montmorillonite/organosilicon blocked polyurethane nanocomposite and an application of the nanocomposite. The preparation method comprises: firstly, the organic montmorillonite, the polymer polyol and the castor oil are blended and dispersed for a plurality of hours under heating and agitation; secondly, polyol with anionic groups and polyisocyanate are added into the former mixture to process reactions, chain extension is carried out by amino alkyl polysiloxane oligomer; at last the water dispersible montmorillonite/organosilicon block polyurethane nanocomposite is obtained after the neutralization of the mixture by alkali solution and the dispersion of the mixture. The preparation method of water dispersible montmorillonite/organosilicon blocked polyurethane nanocomposite has the advantages that: the water resistance, the dimension stability and the mechanical property of the nanocomposite are increased significantly because ...

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Номер записи: 5
23-06-2010 дата публикации

Preparation method of silane coupling agent containing allyl sulfydryl and amino and usage thereof

Номер: CN0101747532A
Автор: CHEN SHILONG, GAO CHUANHUA, SHILONG CHEN, CHUANHUA GAO
Принадлежит:

The invention discloses a preparation method of a silane coupling agent containing allyl sulfydryl and amino and a usage thereof. The molecular structural formula of the silane coupling agent is (R1O)3-xSiR2xR3(NHR4)yNHz(SHCNH2NHCH2CH=CH2)m. The silane coupling agent is obtained through addition reaction of 1-2 mole allylthiourea and 1 mole silane coupling agent with the molecular formula of (R1O)3-xSiR2xR3(NHR4)yNH2, wherein R1 and R2 are straight chain or branched alkyl of same or different 1-6 carbon atoms, R3 is alkylidene and aryl of 1-6 carbon atoms or aryl alkylidene and alkyl arylene of 6-10 carbon atoms, and R4 is alkylidene of 1-6 carbon atoms, x is 0 or 1, y is 0, 1 or 2, z is 0 or 1, and m is 2-z. Compared with the traditional allyl monomer, the silane coupling agent can be used as active diluent monomer of ultraviolet curing prepolymer, the sulfydryl is contained in the molecule, the inhibition of the oxygen to the ultraviolet curing process can be effectively reduced, the ...

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Номер записи: 6
28-07-2010 дата публикации

Flame-retardant high-temperature vulcanized silicone rubber strips for doors and windows of buildings and preparation method thereof

Номер: CN0101787846A
Автор: SHOUXIN CAI, SHILONG CHEN, YANFEN CHENG, CHUANHUA GAO, XIANGDI WANG, QINGQING XU, CAI SHOUXIN, CHEN SHILONG, CHENG YANFEN, GAO CHUANHUA, WANG XIANGDI, XU QINGQING
Принадлежит:

The invention discloses flame-retardant high-temperature vulcanized silicone rubber strips for doors and windows of buildings and a preparation method thereof. The method comprises the following steps: adding methyl vinyl silicone rubber, an inorganic flame retardant, fillers and a structural control agent into a kneading machine, dehydrating the mixture at the temperature of between 100 and 180 DEG C and the vacuum degree of between -0.06 and -0.10 MPa for 0.5 to 4 hours, and then cooling the mixture to produce compound rubber; thinning and milling masterbatch rubber, a vulcanizing agent and the compound rubber for 3 to 5 times at room temperature on a mill; cutting thinned compound rubber sheet into rubber strips with the width of between 4 and 6 centimeters and feeding the rubber strips to a screw extruder to extrude the rubber strips; and vulcanizing and forming the rubber strips through a high-temperature drying channel and finally performing a secondary vulcanization in a drying box ...

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Номер записи: 7
27-07-2011 дата публикации

Method for preparing water-dispersed block polymer flame retardants with phosphorus, silicon and nitrogen and uses thereof

Номер: CN0101333443B
Автор: GAO CHUANHUA, LIN WEIWEI, MA TINGFANG, ZHENG QIANG, NI JIANI, HUA JIJUN, CHEN SHILONG, CHUANHUA GAO, WEIWEI LIN, TINGFANG MA, QIANG ZHENG, JIANI NI, JIJUN HUA, SHILONG CHEN
Принадлежит:

The invention discloses a method for preparing water dispersible macromolecule flame retardant which contains P-block, Si-block and N-block and the application thereof. The flame retardant is produced through the following steps: polyisocyanate and polylols (including phosphoric polylol, carboxylic polylol, polymer polylol and castor oil) react to produce isocyanate-terminated polyurethane prepolymer; then the isocyanate-terminated polyurethane prepolymer is processed with amino silicones for chain extension and finally is neutralized and dispersed by alkali aqueous solution, thus preparing an aqueous dispersion with good dispersivity and stability. The invention is characterized in that the molecular chain of the synthesized flame retardant contains P, Si and N which have auxiliary fire retarding effects, thereby making the flame retardant better in fire retarding effect with no emission of poisonous gas and low amount of smog after burning; the synthesized flame retardant takes water ...

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Номер записи: 8
31-12-2008 дата публикации

Method for preparing water-dispersed block polymer flame retardants with phosphorus, silicon and nitrogen and uses thereof

Номер: CN0101333443A
Автор: ZHENG QIANG, GAO CHUANHUA, LIN WEIWEI, NI JIANI, HUA JIJUN, CHEN SHILONG, MA TINGFANG, QIANG ZHENG, CHUANHUA GAO, WEIWEI LIN, JIANI NI, JIJUN HUA, SHILONG CHEN, TINGFANG MA
Принадлежит:

The invention discloses a method for preparing water dispersible macromolecule flame retardant which contains P-block, Si-block and N-block and the application thereof. The flame retardant is produced through the following steps: polyisocyanate and polylols (including phosphoric polylol, carboxylic polylol, polymer polylol and castor oil) react to produce isocyanate-terminated polyurethane prepolymer; then the isocyanate-terminated polyurethane prepolymer is processed with amino silicones for chain extension and finally is neutralized and dispersed by alkali aqueous solution, thus preparing an aqueous dispersion with good dispersivity and stability. The invention is characterized in that the molecular chain of the synthesized flame retardant contains P, Si and N which have auxiliary fire retarding effects, thereby making the flame retardant better in fire retarding effect with no emission of poisonous gas and low amount of smog after burning; the synthesized flame retardant takes water ...

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Номер записи: 9
23-07-2008 дата публикации

Method for preparing water-dispersion montmorillonite/organic block polyurethane nano composite material and uses thereof

Номер: CN0101225226A
Автор: ZHENG QIANG, GAO CHUANHUA, YANG YANYAN, NI JIANI, LIN WEIWEI, CHEN SHILONG, MA TINGFANG, HU HUIXIA, QIANG ZHENG, CHUANHUA GAO, YANYAN YANG, JIANI NI, WEIWEI LIN, SHILONG CHEN, TINGFANG MA, HUIXIA HU
Принадлежит:

The invention discloses a preparation method of water dispersible montmorillonite/organosilicon blocked polyurethane nanocomposite and an application of the nanocomposite. The preparation method comprises: firstly, the organic montmorillonite, the polymer polyol and the castor oil are blended and dispersed for a plurality of hours under heating and agitation; secondly, polyol with anionic groups and polyisocyanate are added into the former mixture to process reactions, chain extension is carried out by amino alkyl polysiloxane oligomer; at last the water dispersible montmorillonite/organosilicon block polyurethane nanocomposite is obtained after the neutralization of the mixture by alkali solution and the dispersion of the mixture. The preparation method of water dispersible montmorillonite/organosilicon blocked polyurethane nanocomposite has the advantages that: the water resistance, the dimension stability and the mechanical property of the nanocomposite are increased significantly because ...

Подробнее
Номер записи: 10
09-06-2010 дата публикации

Method for synthesizing water-dispersion organosilicon-polyurethane block copolymer and its uses

Номер: CN0101225150B
Автор: MA TINGFANG, CHEN SHILONG, LIN WEIWEI, ZHENG QIANG, GAO CHUANHUA, HUA JIJUN, NI JIANI, TINGFANG MA, SHILONG CHEN, WEIWEI LIN, QIANG ZHENG, CHUANHUA GAO, JIJUN HUA, JIANI NI
Принадлежит:

The invention discloses a synthesis method for waterborne organocilicon-polyurethane block copolymer, comprising steps as follows: reaction is carried out between polyisocyanate and polyol (the polyolcomprises the one from the castor oil and carboxyl polyol) to generate isocyanate-terminated polyurethane prepolymer; then chain extension is carried out via amino alkyl polysiloxane; eventually alkaline aqueous solution is adopted for neutralization and dispersion, to prepare aqueous dispersion with excellent dispersion and stability. In addition, the aqueous dispersion is applied as coating forthe wood and paper, as finishing agent for leathers and textiles, or as adhesives. Since natural vegetable oil from castor beans is selected and amino alkyl polysiloxane is adopted as the chain extender. The synthesis method for waterborne organocilicon-polyurethane block copolymer has the advantages of remarkably improved hydrophobic property, heat resistance and surface smoothness for the polymer ...

Подробнее
Номер записи: 11