Thermal control film for space

A thermal control thin film, space technology, applied in the direction of antenna, interference protection, deicing/drying device, etc.

A thermal control thin film, space technology, applied in the direction of antenna, interference protection, deicing/drying device, etc.

CN109648971AInactive Publication Date: 2019-04-19SHANGHAI SATELLITE ENG INST
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  • Thermal control film for space

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[0015] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0016] The manufacturer of the polyimide germanium-coated film among the present invention is: Lanzhou Institute of Space Technology Physics, model is RKTC / PI-Ge-1200; The manufacturer of carburized polyimide film is Shanghai Silicate Institute , Model 25μm conductive carburized polyimide film.

[0017] Such as figure 1 As shown, the embodiment of the present invention provides a novel thermal control film for space, including a polyimide germanium-coated film 1 and a black carburized polyimide f...

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Abstract

The invention provides a thermal control film for a space. The thermal control film comprises a polyimide germanium-plated film body and a carburized polyimide film body, wherein the polyimide germanium-plated film body and the carburized polyimide film body are bonded with each other point to point locally through a polyimide double-sided pressure-sensitive adhesive. The thermal control film hasthe advantages that the polyimide double-sided pressure-sensitive adhesive is used for locally bonding the polyimide germanium-plated film body with the black carburized polyimide film body point to point, a microwave array antenna is completely coated, heat in the thermal control film is absorbed by the black carburized polyimide film body, and the high infrared emissivity of the polyimide germanium-plated film body is utilized to dissipate heat to the space. Meanwhile, the low solar absorptivity of the polyimide germanium-plated film body is utilized to reduce the high-temperature influenceof external heat flow of the space on the antenna. Since the weight of the thermal control film is much lower than that of spray paint of an antenna structure, the lightweight design of a satellite isfacilitated.

Description

technical field [0001] The invention relates to thermal control products for space vehicles, in particular to a novel thermal control film for space. Background technique [0002] The anti-high temperature measures of conventional satellite extravehicular antennas are mainly by spraying a coating with low solar absorption rate and high emissivity on the antenna structure to dissipate heat to the space. Since the microwave array antenna is mainly composed of a chip integrated array, the surface cannot be sprayed with a heat dissipation coating; in addition, the microwave array antenna needs to transmit or receive microwaves into the space, and the antenna itself generally has a large heat loss, so it is covered with multi-layer insulation The thermal component not only blocks the transmission and reception of antenna waves but also hinders the heat dissipation of the antenna, which is totally undesirable. Using heat pipes or adding heat expansion plates to transfer heat need...

Claims

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Application Information

Patent Timeline
19 Apr 2019
Publication
CN109648971A
IPC
B32B27/28; B32B27/06; B32B7/14; H01Q1/00
CPC
B32B7/14; B32B27/08; B32B27/281; B32B2307/302; B32B2307/718; H01Q1/002; H01Q1/02
Inventors
孙伟伟; 赵吉喆