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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 4. Отображено 4.
18-08-2023 дата публикации

Preparation and application of inorganic eutectic shape-stabilized phase change material with thermal insulation function

Номер: CN116606634A
Автор: WANG XUAN, ZHANG YU'ANG, LI ZAICHAO
Принадлежит:

The invention discloses preparation and application of an inorganic eutectic shape-stabilized phase change material with a heat preservation function, and belongs to the technical field of phase change energy storage. According to the inorganic eutectic shape-stabilized phase-change material, sodium carbonate decahydrate and disodium hydrogen phosphate dodecahydrate are used as phase-change main materials, sodium silicate nonahydrate is used as a nucleating agent, the degree of supercooling is reduced, and the inorganic eutectic phase-change material with low supercooling and no phase separation is prepared. And further preparing the inorganic eutectic shape-stabilized phase change material by using gas-phase SiO2 as a supporting material. The material prepared by the invention is appropriate in phase change temperature, relatively high in phase change enthalpy value, very low in supercooling degree and free from a phase separation phenomenon. The synthesis process is simple, and raw materials ...

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Номер записи: 1
22-08-2023 дата публикации

High-thermal-conductivity flexible composite phase change material as well as preparation method and application thereof

Номер: CN116622342A
Автор: TANG BINGTAO, LI ZAICHAO, ZHANG YU'ANG, ZHANG SHUFEN
Принадлежит:

The invention discloses a high-thermal-conductivity flexible composite phase change material and a preparation method and application thereof, and belongs to the technical field of new materials. The high-thermal-conductivity flexible composite phase-change material is composed of, by mass, 72-82% of an organic solid-liquid phase-change material, 17% of a polymer supporting material and 1-3% of a thermal-conductivity enhancer, the organic solid-liquid phase-change material is a fatty acid phase-change material, the thermal-conductivity enhancer is a carboxylated thermal-conductivity carbon material, and the organic solid-liquid phase-change material and the thermal-conductivity enhancer are assembled under supramolecular acting force to form the high-thermal-conductivity flexible composite phase-change material. And uniformly compounding with a polymer high-molecular support material. The high-thermal-conductivity flexible composite phase-change material is stable in shape, can be converted ...

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Номер записи: 2
25-04-2023 дата публикации

Construction method for staggered floor running water of underground earthwork structure of reverse construction

Номер: CN116005718A
Автор: SUN JIAWEI, ZHAO XIAODONG, WANG SHUAIHUI, ZHAO LEI, BA TEER, MA BAO, LI ZAICHAO, HAO XIANGBIN
Принадлежит:

The invention discloses a construction method for staggered floor running water of an underground earthwork structure of reverse construction, which comprises the following steps of: dividing a to-be-constructed area of a foundation pit into an area A and an area B, and further dividing the area A into an area A1 positioned in the foundation pit and an area A2 positioned on the periphery of the foundation pit; the area A1 and the area B are excavated to the position between the first underground layer and the second underground layer, and then structural beam plates of the first underground layer of the area A1 and the area B are constructed; and after beam plates of the first underground layer structures of the A1 area and the B area reach the design strength, the A2 area is excavated to the position between the first underground layer and the second underground layer, then a side span structure of the A2 area is constructed, and the side span structure of the A2 area is connected with ...

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Номер записи: 3
14-07-2023 дата публикации

Rigid-flexible conversion composite phase change material suitable for battery thermal management and preparation method and application thereof

Номер: CN116426247A
Автор: TANG BINGTAO, LI ZAICHAO, ZHANG YUANG, ZHANG SHUFEN
Принадлежит:

The invention relates to a rigid-flexible conversion composite phase change material suitable for battery thermal management and a preparation method and application thereof, and belongs to the technical field of lithium ion battery materials. The invention relates to a rigid-flexible conversion composite phase change material suitable for battery thermal management, and the rigid-flexible conversion composite phase change material comprises the following components in percentage by mass: 70-90wt% of n-octadecane, 5wt% of a polymer high-molecular shape-stabilized phase change support material and 10-25% of expanded graphite. The rigid-flexible conversion composite phase change material is stable in shape, can be converted between a rigid material and a flexible material along with the change of temperature, and can be used for heat preservation of a lithium battery in a cold environment, and after an automobile is parked in the cold environment for a long time, the required cold start time ...

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Номер записи: 4