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Flexible OSR second surface mirror thermal control coating and preparation method and application thereof

A technology of secondary surface mirror and thermal control coating, which is used in coatings, aerospace vehicle thermal protection devices, aerospace safety/emergency devices, etc. The effect of pasting, improving thermal control performance, and broadening the scope of use

Inactive Publication Date: 2017-01-18
SHANGHAI YUDA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention relates to a flexible OSR secondary surface mirror thermal control coating, compared with the traditional rigid OSR secondary surface mirror thermal control coating, it can effectively solve the problem that the traditional rigid OSR secondary surface mirror thermal control coating cannot Implement curved surface sticking, product fragility and other problems, broaden the application range of OSR secondary surface mirror thermal control coating

Method used

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  • Flexible OSR second surface mirror thermal control coating and preparation method and application thereof
  • Flexible OSR second surface mirror thermal control coating and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0026] The structure of a flexible OSR secondary surface mirror thermal control coating involved in this embodiment is as follows: figure 1 As shown, it includes a flexible glass substrate 1, a metal reflective layer 2 (generally silver, aluminum, etc.) The thickness of the film layer is less than 10μm, and the thickness ratio of the metal reflective layer and the anti-oxidation film layer is close to 1:1, and can be adjusted according to the performance requirements.

[0027] The preparation method of the flexible OSR secondary surface mirror thermal control coating provided in this embodiment includes the following steps:

[0028] Metal reflective layer is plated on the single side surface of flexible glass substrate, and anti-oxidation layer is plated on the surface of described metal reflective layer, and the thermal radiation performance of the flexible OSR secondary surface mirror thermal control coating that obtains is:

[0029] Solar absorption ratio: αs≤0.12.

[003...

Embodiment 2

[0032] The structure of a flexible OSR secondary surface mirror thermal control coating involved in this embodiment is as follows: figure 2 As shown, it includes a conductive layer 4 (generally ITO film), a flexible glass substrate 1, a metal reflective layer 2 (generally silver, aluminum, etc.) and an anti-oxidation film layer 3 (generally nickel Chrome alloy), the thickness of conductive layer, metal reflective layer and anti-oxidation film layer is less than 10 μm, the thickness ratio of conductive layer, metal reflective layer and anti-oxidation film layer is close to 1:4:5, and can be adjusted according to performance requirements.

[0033] The preparation method of the OSR secondary surface mirror thermal control coating provided in this embodiment comprises the following steps:

[0034] On both sides of the flexible glass substrate, a conductive layer and a metal reflective layer are plated respectively, and an anti-oxidation layer is plated on the surface of the metal...

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Abstract

The invention provides a flexible OSR second surface mirror thermal control coating. The thermal control coating comprises a flexible glass substrate. One side of the flexible glass substrate is firstly coated with a metal reflecting layer and then coated with an anti-oxidation layer. If there is requirement on conductibility, the other side of the flexible glass substrate is coated with a conductive film layer. The fundamental principle of the invention is to adopt a vacuum magnetron sputtering and coating technology. By coating at two sides of the flexible glass substrate, the flexible OSR second surface mirror thermal control coating with a certain physical properties, namely solar absorptance (alpha s) and emittance (epsilon h) is obtained. The flexible OSR second surface mirror thermal control coating can be pasted onto a curved surface of spacecrafts such as a satellite, etc. to raise thermal control performance. Then, the problem that a traditional rigid OSR second surface mirror thermal control coating cannot realize curved surface pasting and a product is easy to crack is effectively solved; and application range of the OSR second surface mirror thermal control coating is widened.

Description

technical field [0001] The invention relates to a flexible OSR secondary surface mirror thermal control coating, a preparation method and application thereof, and belongs to the technical field of aerospace equipment. Background technique [0002] The mirror-type thermal control coating on the secondary surface of OSR can adjust the temperature of the spacecraft surface through its own thermophysical properties, namely the solar absorption ratio (αs) and emissivity (εh), and is an important part of the passive thermal control system of the spacecraft. . The excellent photoelectric performance and space adaptability of the OSR secondary surface mirror provide thermal control for the relevant parts of the satellite or the whole star, so that the satellite and subsystems can operate at the optimal working temperature, thereby ensuring the safe operation of the satellite. [0003] The traditional OSR secondary surface mirror-type thermal control coating is a rigid sheet in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/36C03C17/40B64G1/58
CPCC03C17/36B64G1/58C03C17/3644C03C17/3649C03C17/3655C03C17/40C03C2217/948C03C2218/365
Inventor 韩玮齐晓军孙敬文季琨庞乐赵帅雷
Owner SHANGHAI YUDA IND
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