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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.
07-07-2023 дата публикации

Preparation method of leather-based radiation cooling material with double-layer structure

Номер: CN116397060A
Автор: WANG XUECHUAN, XIE LONG, LIU XINHUA, ZOU XIAOLIANG, LIANG SHUANG, ZHA SIYU
Принадлежит:

The invention discloses a preparation method of a leather-based radiation cooling material with a double-layer structure, and the preparation method specifically comprises the following steps: firstly, preparing nano magnesium phosphite, dissolving the nano magnesium phosphite in deionized water, dipping leather in the deionized water, and continuously overturning to obtain nano magnesium phosphite filled leather; the preparation method comprises the following steps: adding nano magnesium phosphite and polyvinylidene fluoride-hexafluoropropylene into an acetone solution, stirring, standing, coating the nano magnesium phosphite to fill the surface of the leather, and standing at normal temperature. The leather-based radiation cooling material with the double-layer structure prepared by the invention has excellent comprehensive mechanical properties, hydrophobicity and dry and wet friction resistance. The solar reflectivity and the average emissivity of the material in the middle infrared ...

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Номер записи: 1
12-05-2023 дата публикации

Preparation method of amphoteric wet finishing material with retanning, fat liquoring and dyeing functions

Номер: CN116102681A
Автор: WANG XUECHUAN, WEI CHAO, LIU XINHUA, LU QIANGQIANG, SU RONGRONG, XIE LONG
Принадлежит:

The invention discloses a preparation method of an amphoteric wet finishing material with retanning, fat liquoring and dyeing functions, which comprises the following steps: by taking acrylic acid, dimethyl diallyl ammonium chloride and dodecyl acrylate as raw materials, preparing an amphoteric polymer pADD through free radical polymerization; the amphoteric wet finishing material pADD-DMENA is synthesized by grafting a side chain of pADD with a naphthalimide derivative. The amphoteric wet finishing material pADD-DMENA prepared by the preparation method disclosed by the invention can endow leather with excellent softness, filling property and mechanical property. According to the material, the retanning, fat liquoring and dyeing procedures in the wet finishing procedure can be effectively combined into one, the retanning-fat liquoring-dyeing integrated technological operation is achieved, the processing time is shortened, the production efficiency is improved, and the environmental pollution ...

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Номер записи: 2
17-11-2004 дата публикации

一种羊毛脂皮革加脂剂的制备方法

Номер: CN0001546690A
Автор: WANG XUECHUAN FENG, XUECHUAN,FENG WANG, 王学川
Принадлежит:

A lanolin leather fatting agent preparation method comprises, mixing lanolin with aminoethyl alcohol for reaction, charging basic catalyst for lanolin amidation, mixing amidation lanolin with maleic anhydride, charging acid catalyst for acidic catalytic reaction, or subjecting amidation lanolin to mixing reaction with mineral oil containing P2O5 and its derivatives, or subjecting amidation lanolin to mixing reaction with maleic anhydride or mineral oil containing P2O5 and its derivatives, cooling down after the completion of reaction, neutralizing till pH=6.0-8.0 with sodium-hydroxide, adjusting the solids content to 50%-65%.

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Номер записи: 3
17-11-2004 дата публикации

一种磷酸酯类轻纺助剂的制备方法

Номер: CN0001546779A
Автор: WANG XUECHUAN FENG, XUECHUAN,FENG WANG, 王学川
Принадлежит:

The invention is a manufacturing method for phosphate textile assistants. At first, the P2O5 is added into high molecular aliphatic hydrocarbon and its derivant solvent of mineral oil long carbon chains or plant oil dispersing solvent, they are blended evenly to be used as phosphorylation agent; castor oil or dewatered wool grease are heated to 30-60 degrees and adds in phosphorylation agent, adds in water to hydrolyze them after the heating reaction to produce acid phosphate ester; decreases the temperature to below 50 degrees, then adds in natrium oxyhydrogen to neutralize, heats up and stirs, adds in water to control the solid content between 45%-85%.

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Номер записи: 4
09-05-2023 дата публикации

Glycerol triglycidyl ether modified oligomeric chitosan-based organic chrome-free tanning agent as well as preparation method and application of glycerol triglycidyl ether modified oligomeric chitosan-based organic chrome-free tanning agent

Номер: CN116083659A
Автор: WANG XUECHUAN, LIANG SHUANG, DANG XUGANG
Принадлежит:

The invention discloses a glycerol triglycidyl ether modified oligomeric chitosan-based organic chrome-free tanning agent as well as a preparation method and application thereof, and belongs to the technical field of leather tanning. Comprising the steps of preparation of chitosan oligosaccharide and preparation of a glycerol triglycidyl ether modified chitosan oligosaccharide mixed solution. The preparation method comprises the following steps: degrading chitosan by using chitosanase to obtain chitosan oligosaccharide, and sequentially carrying out chemical crosslinking on amino of the chitosan oligosaccharide by using epoxy groups of glycerol triglycidyl ether to prepare a crude product mixed solution; and performing liquid separation and freeze drying to obtain glycerol triglycidyl ether modified oligomeric chitosan-based organic chrome-free tanning agent solid powder. Glycerol triglycidyl ether and chitosan oligosaccharide are taken as raw materials, the preparation of the organic chrome-free ...

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Номер записи: 5
06-06-2023 дата публикации

Preparation method of hemicellulose-indolic acid/PBAT antibacterial film

Номер: CN116217988A
Автор: DANG XUGANG, YU ZHENFU, LI NAN, WANG XUECHUAN
Принадлежит:

The invention discloses a preparation method of a hemicellulose-indolic acid/PBAT antibacterial film, which specifically comprises the following steps: firstly, preparing hemicellulose-indolic acid powder, and mixing PBAT with N, N '-dimethylformamide to obtain a PBAT dispersion liquid; mixing the hemicellulose-indolic acid powder with N, N-dimethylformamide; the preparation method comprises the following steps: mixing hemicellulose and N, N '-dimethylformamide to obtain a hemicellulose-indolic acid powder dispersion liquid, mixing and stirring the PBAT dispersion liquid and the hemicellulose-indolic acid dispersion liquid to obtain a PBAT and hemicellulose-indole viscous mixed dispersion liquid, coating a polytetrafluoroethylene film forming plate with the viscous mixed dispersion liquid, and carrying out air drying to obtain the hemicellulose-indole/PBAT antibacterial film. According to the method disclosed by the invention, the stability, antibacterial property, mechanical property and ...

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Номер записи: 6
30-05-2023 дата публикации

Near-infrared fluorescent probe for detecting peroxynitrite and preparation method thereof

Номер: CN116178407A
Автор: WANG XUECHUAN, WANG XIAO, HAN QINGXIN
Принадлежит:

The invention discloses a near-infrared fluorescent probe for detecting peroxynitrite and a preparation method thereof, and the preparation method specifically comprises the following steps: mixing (E)-2-(3-formyl-4-hydroxystyryl)-5, 5-dimethylcyclohexyl-2-ene-1-subunit malononitrile, 4-bromomethylphenylboronic acid pinacol ester and K2CO3 in DMF (Dimethyl Formamide) in an argon atmosphere, stirring, monitoring through TCL, after the reaction is finished, washing with water, and drying to obtain the near-infrared fluorescent probe for detecting peroxynitrite. Extracting, drying and performing column chromatography separation and purification to obtain an orange solid, namely the near-infrared probe. The probe can show high selectivity and strong anti-interference capability to ONOO <->, the detection limit LOD is 97nM, and in the process of activating the probe by ONOO <->, fluorescence emission is subjected to red shift, the intensity is enhanced, and the fluorescence color is also changed ...

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Номер записи: 7