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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 8. Отображено 8.
12-05-2023 дата публикации

Anti-near-control lens base material with densely distributed micro lenses and preparation method and application of anti-near-control lens base material

Номер: CN116102699A
Автор: XIE GONGXING, HUAI XU, BA ZHIXIN, WANG ZHANGZHONG, ZHU HAIFENG, SHU JIANCHAO
Принадлежит:

The invention discloses an anti-near-control lens base material with densely distributed micro lenses as well as a preparation method and application of the anti-near-control lens base material. The base material is prepared from the following materials: polyhydric alcohol containing episulfide groups, isocyanate, a catalyst, a solvent and a chain extender, the molar fraction ratio of the polyhydric alcohol containing the episulfide group to the isocyanate is 1: (1.0-1.1); the dosage of the catalyst accounts for 0.5-1.2% of the total mass of the polyhydric alcohol containing the episulfide group and the isocyanate; the use amount of the solvent accounts for 50-120% of the total mass of the polyhydric alcohol containing the episulfide group and the isocyanate; and the use amount of the chain extender is 2-8% of the mass of the isocyanate. The episulfide group effectively increases the refractive index and Abbe number of the polymer, and improves the impact strength and toughness of the polymer ...

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Номер записи: 1
22-08-2023 дата публикации

Polymer resin with high light transmittance and high scratch resistance, product and preparation process of polymer resin

Номер: CN116622082A
Автор: XIE GONGXING, DAI SHUANGHAN, HUAI XU, BU XIAOHAI, BA ZHIXIN, WANG ZHANGZHONG
Принадлежит:

The invention discloses polymer resin with high light transmittance and high scratch resistance, a product and a preparation process of the polymer resin, and belongs to the technical field of resin synthesis and processing. The high-light-transmittance and high-scratch-resistance polymer resin is prepared from the following components in percentage by mass: 80-90% of acrylate monomer, 1-5% of initiator, 0.1-2% of ultraviolet light absorber, 0-5% of pigment and 1-8% of release agent, wherein the acrylate monomer is composed of a hyperbranched sulfur-containing acrylate monomer, and one or more of ethoxylated bisphenol A methacrylic acid diester, butyl methacrylate, polyethylene glycol methacrylate, triethylene glycol dimethacrylate and 2, 4-diphenyl-4-methyl-1-pentene, and the monomer is one or more of 2, 4-diphenyl-4-methyl-1-pentene. And the hyperbranched sulfur-containing acrylate monomer accounts for 10-40 wt% of the total components of the polymer resin. The invention has the advantages ...

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Номер записи: 2
05-05-2023 дата публикации

Double-sided composite micro-lens dense array myopia prevention and control lens and heating compression molding equipment and molding process thereof

Номер: CN116061417A
Автор: XIE GONGXING, ZHUANG WEIGUO, BA ZHIXIN, WANG ZHANGZHONG, ZHU HAIFENG, SHU JIANCHAO
Принадлежит:

The invention discloses a double-sided composite micro-lens dense array myopia prevention and control lens and heating compression molding equipment and a molding process thereof. The heating compression molding equipment comprises an upper mold (1) and a lower mold (2), the upper die (1) comprises an upper die plate (9), an upper die insert (10), a guide sleeve (11), a positioning taper sleeve (12) and an upper die electrical bar mounting hole (13); and the lower die (2) comprises a lower die plate (4), a lower die insert (5), a guide pillar (6), a positioning cone (7) and a lower die electrical bar mounting hole (8). The parts, close to the parting surfaces, of the upper die and the lower die are punched, heating equipment is installed, and the temperature difference of the surface of the product can be accurate to +/-0.5-1 DEG C. Heating compression molding with a closed-loop temperature control system is adopted, the heating efficiency is high, the temperature control precision is high ...

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Номер записи: 3
02-05-2023 дата публикации

Surface coating for graded regulation and control of magnesium alloy degradation as well as preparation method and application of surface coating

Номер: CN116043306A
Автор: DONG QIANGSHENG, XUE FENG, BAI JING, HU YI, BA ZHIXIN, WANG ZHANGZHONG
Принадлежит:

The invention discloses a surface coating for graded regulation and control of magnesium alloy degradation and a preparation method and application thereof, and belongs to the technical field of magnesium alloy corrosion regulation and control. The coating comprises a micro-arc oxidation coating, and the micro-arc oxidation coating comprises a fluorine-rich compact layer combined with the magnesium alloy matrix and a porous layer located above the compact layer. The iron-rich layer permeates into a microporous structure of the porous layer, and the degradable polymer layer with swelling property is arranged above the porous layer. The preparation method comprises the following steps: S1, preparing the micro-arc oxidation coating on the surface of the magnesium alloy; s2, depositing an iron-rich compound on the porous structure of the micro-arc oxidation coating; and S3, coating of a polymer coating. The composite coating has the characteristics of good initial corrosion protection and later ...

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Номер записи: 4
09-05-2023 дата публикации

Adsorbent for extracting lithium from whisker-shaped spinel type magnesium-aluminum oxide lithium ion sieve salt lake and preparation method of adsorbent for extracting lithium from whisker-shaped spinel type magnesium-aluminum oxide lithium ion sieve salt lake

Номер: CN116078344A
Автор: WANG ZHANGZHONG, BA ZHIXIN, BAO JIEHUA, ZHANG ZEWU, LI HAOWEN, XU KE
Принадлежит:

The invention discloses an adsorbent for extracting lithium from a whisker-shaped spinel type magnesium-aluminum oxide lithium ion sieve salt lake and a preparation method of the adsorbent, and belongs to the technical field of materials, the Li < + > saturation adsorption capacity of the adsorbent for extracting lithium from the whisker-shaped spinel type magnesium-aluminum oxide lithium ion sieve salt lake is greater than 50mg/g, and the saturation adsorption capacity is greater than 45mg/g after the adsorbent is recycled for 30 times; the diameter of the adsorbent is 0.5-1 [mu] m, and the adsorbent is in a whisker shape. The adsorbent provided by the invention is more compact in structure, and can effectively avoid the change of the structure of magnesium aluminate spinel caused by the fact that lithium ions thermally migrate into lattice gaps of the magnesium aluminate spinel, thereby further improving the cycling stability of a spinel type magnesium aluminum oxide lithium ion sieve ...

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Номер записи: 5
11-04-2023 дата публикации

Magnesium alloy surface self-repairing coating as well as preparation method and application thereof

Номер: CN115948784A
Автор: DONG QIANGSHENG, BAI JING, XUE FENG, BA ZHIXIN, WANG ZHANGZHONG
Принадлежит:

The invention discloses a magnesium alloy surface self-repairing coating and a preparation method and application thereof, and belongs to the technical field of magnesium alloy corrosion protection.The preparation method comprises the following steps that S1, a micro-arc oxidation coating is prepared on the surface of a magnesium alloy, specifically, after the magnesium alloy is pretreated, the magnesium alloy is placed in a micro-arc oxidation electrolyte to be subjected to micro-arc oxidation treatment, a micro-arc oxidation coating is obtained; s2, growing layered double hydroxides on the micro-arc oxidation coating: soaking a micro-arc oxidation coating sample in an acidic manganese-containing aqueous solution, and then placing the sample soaked in the acidic manganese-containing aqueous solution in an aqueous solution of Mg (NO3) 2, Ca (NO3) 2 or Zn (NO3) 2 for hydrothermal reaction; and S3, corrosion inhibition ion loading is conducted, specifically, the sample is placed in a (NH4 ...

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Номер записи: 6
12-09-2017 дата публикации

A magnetic field driving deformation of the memory alloy and its preparation method

Номер: CN0105861861B
Автор: 巨佳, 巴志新, 郝帅, 黄成戈, 胡师东, 闫良玉, 杨柳, 毛麒童
Принадлежит:

... 本发明提供种磁场驱动形变的记忆合金及其制备方法，属于形状记忆合金领域，该合金具有室温条件下外磁场控制产生形变的能力，是种可在室温条件下由外磁场变化驱动马氏体孪晶界迁移以及逆迁移产生可恢复应变的种磁控形状记忆合金。该合金化学式为：CoNiAlFe；其中，28≤x≤42，25≤y≤32，23≤z≤37，0.5≤j≤10，x+y+z+j=100，x、y、z、j表示摩尔百分比含量。本发明磁控形状记忆合金与现有材料相比，其微观组织中存在Fe‑Co金属间化合物，使合金具有较宽的磁致应变温度范围，较大的磁致应变量以及良好的力学性能，可在室温下使用的高精度驱动器和执行器等领域有重要应用。 ...

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Номер записи: 7
04-04-2023 дата публикации

Optical polyurethane-based composite material suitable for precision hot press molding and preparation method and application thereof

Номер: CN115894837A
Автор: XIE GONGXING, BU XIAOHAI, BA ZHIXIN, WANG ZHANGZHONG, ZHU HAIFENG, SHU JIANCHAO
Принадлежит:

The invention discloses an optical polyurethane-based composite material suitable for precision hot press molding and a preparation method and application thereof.The optical composite material is formed by conducting vacuum defoaming and thermocuring on a 1, 3, 5-tri (3-sulfydryl-propyl sulfate) solution compounded with nano particles such as zinc sulfide and an isocyanate reaction solution, and the 1, 3, 5-tri (3-sulfydryl-propyl sulfate) solution is prepared from 1, 3, 5-tri (3-sulfydryl-propyl sulfate and 1, 3, 5-tri (3-sulfydryl-propyl sulfate and 1, 3, 5-tri (3-sulfydryl-propyl sulfate and 1, 3, 5-tri (3-sulfydryl-propyl sulfate. According to the invention, 1, 5-benzene trithiophenol is used as an initial unit and is subjected to a thioesterification reaction with 3, 3 '-dithiodipropionic acid to form a three-dimensional network structure, so that the hardness of the optical material is enhanced. The optical polyurethane-based composite material suitable for precision hot press molding ...

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Номер записи: 8