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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.
04-07-2023 дата публикации

Preparation method of zirconium phosphate flame retardant loaded with organic phosphorus and flame-retardant semi-aromatic polyamide composition

Номер: CN116376115A
Автор: LEI CAIHONG, XU RUIJIE, CHEN DAHUA
Принадлежит:

The invention discloses a preparation method of an organophosphorus-loaded zirconium phosphate flame retardant. The preparation method comprises the following steps: respectively dissolving a phosphonitrile-containing intermediate and an alcohol amine compound in a solvent to obtain a phosphonitrile-containing intermediate solution and an alcohol amine compound solution; the preparation method comprises the following steps: adding a quaternary ammonium salt intercalated zirconium phosphate suspension into a phosphonitrile-containing intermediate solution, uniformly mixing, dropwise adding an alcohol amine compound solution, stirring for reaction, and carrying out rotary evaporation, washing and drying to obtain the zirconium phosphate flame retardant loaded with organic phosphorus. The zirconium phosphate flame retardant loaded with organophosphorus can overcome the technical difficulty of high processing temperature of semi-aromatic polyamide, effectively solves the defect that the semi-aromatic ...

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Номер записи: 1
19-04-2012 дата публикации

METHOD FOR FORMING MICROPOROUS POLYOLEFIN MEMBRANE AND APPLICATION THEREOF

Номер: IB2012048503A1
Автор: CHEN, Xiufeng, CHEN, Liang, LEI, Caihong, GAO, Dongbo
Принадлежит:

Disclosed is a method for forming microporous polyolefin membrane, which comprises the following steps: melt extruding polypropylene and casting into film at 180-260℃ to obtain polyolefin casting base membrane; stretching the polyolefin casting base membrane in machine direction at 10-150℃, so as to obtain primary microporous polyolefin membrane with micropores; performing thermoforming treatment to said primary microporous polyolefin membrane at 110-150℃, and stretching the primary microporous polyolefin membrane in transverse direction to obtain said microporous polyolefin membrane. The application of the method for forming microporous polyolefin membrane in the preparation of separators or lithium ion battery is also provided. In this method, on the basis that the primary microporous membrane is obtained through stretching longitudinally, it is further stretched in transverse direction at a preset tempreture to make the pores of the microporous polyolefin membrane round and bigger, so ...

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Номер записи: 2
11-08-2023 дата публикации

In-mold label film applied to liquid drop flattening as well as preparation method and application of in-mold label film

Номер: CN116580631A
Автор: HU ZHUORONG, LEI CAIHONG, XU WENSHU, LIANG JIEXING
Принадлежит:

The invention relates to an in-mold label film applied to liquid drop flattening as well as a preparation method and application of the in-mold label film. The invention discloses an in-mold label film applied to liquid drop flattening. The in-mold label film comprises a first upper surface layer, a first supporting layer and a first lower surface layer which are arranged in sequence, the first upper surface layer is prepared from 96.5 to 98.9 weight percent of norbornene-propylene copolymer and 1 to 3 weight percent of liquid drop flattening additive; the first supporting layer comprises polypropylene and 1-3wt% of a liquid drop flattening additive; and the first lower surface layer comprises polypropylene. By utilizing the synergistic effect of the norbornene-propylene copolymer with high surface tension and the liquid drop flattening additive, the liquid drops can be fully flattened and are not easy to form microspheres under the application scene of frozen packaging, so that the content ...

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Номер записи: 3
18-05-2012 дата публикации

METHOD FOR PREPARING MICROPOROUS POLYOLEFIN MEMBRANE AND APPLICATION THEREOF

Номер: IB2012062011A1
Автор: CHEN, Xiufeng, CHEN, Liang, LEI, Caihong, GAO, Dongbo, CHEN, Yong
Принадлежит:

Disclosed is a method for preparing microporous polyolefin membrane, which comprises the following steps: melt extruding polyolefin at 180-260℃ and casting into film to obtain casted polyolefin base membrane; stretching the casted polyolefin base membrane before performing thermoforming treatment, so as to obtain a preformed microporous polyolefin membrane; soaking the preformed microporous polyolefin membrane in the organic solvent which has a surface tension of lower than 30mN/m, and then removing the organic solvent to obtain the microporous polyolefin membrane. The application of the method for preparing microporous polyolefin membrane in preparing separators or lithium ion battery is also provided. In the method, after being stretched and thermoforming treated, the preformed microporous membrane is soaked in an organic solvent which has a surface tension of lower than 30mN/m to obtain the final microporous polyolefin membrane with round and bigger pores and evenly distributed gas permeability ...

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Номер записи: 4