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Film structure for satellite flexible heat radiator and manufacturing method of film structure

A thin-film structure and thermal radiator technology, applied in the field of spacecraft thermal control, can solve problems such as the limited volume of satellites

Inactive Publication Date: 2017-05-17
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the limited volume of satellites, using rigid heat sinks as heat radiators obviously cannot meet future needs

Method used

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  • Film structure for satellite flexible heat radiator and manufacturing method of film structure
  • Film structure for satellite flexible heat radiator and manufacturing method of film structure
  • Film structure for satellite flexible heat radiator and manufacturing method of film structure

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Embodiment Construction

[0023] The film structure of the flexible heat radiator for stars of the present invention will be further described below in conjunction with the accompanying drawings. The description is only exemplary and is not intended to limit the protection scope of the present invention.

[0024] See figure 1 , figure 1 It is a thin film structure of a star heat radiator with a structure of the invention. Among them, the structure includes three layers, namely a carbon nanotube paper layer 1.1, a graphene layer 1.2 and a metal aluminum layer or a copper layer 1.3.

[0025] First, a single graphene layer 1.2 is set on the carbon nanotube paper layer 1.1, and a metal copper or aluminum layer 1.3 is plated on the graphene layer 1.2, wherein the thickness of the graphene layer 1.2 is less than 1 nm, and the metal copper or aluminum layer The thickness of layer 1.3 is 10 nm.

[0026] See figure 2 , figure 2 It is the thin film structure of the star heat radiator of another structure of the pres...

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Abstract

The invention discloses a film structure for a satellite flexible heat radiator. A graphene layer is arranged on a buckypaper layer, and the graphene layer is coated with a metal copper or aluminum layer. The invention further discloses another two similar film structures and a manufacturing method thereof. According to the film structure, a graphene film is adhered to one end of buckypaper, the back side of the buckypaper is plated with aluminum, then a flexible film can be formed, the heat radiation rate epsilon of the film structure is 0.85, the heat conductivity of the film structure is 300 Wm<1>K<1>, and the thickness of the film is 10-50 [mu]m.

Description

Technical field [0001] The invention belongs to the technical field of spacecraft thermal control, and specifically relates to a thin film structure of a flexible heat radiator for satellites. In addition, a method for manufacturing a thin film structure of a flexible heat radiator for satellites is also disclosed. Background technique [0002] Since there is no convection and heat conduction in the space, the satellite heat dissipation mainly uses heat radiators to dissipate excess heat inside the satellite through thermal radiation. The heat radiator is an important part of the satellite heat rejection system. At present, the various satellites developed and put into use in my country only use their own skins as radiators to realize heat exchange in outer space. With the development of large-scale communication satellites, the thermal power of on-board devices has been increasing, and the effective load has increased greatly, making the energy consumption density of the entire...

Claims

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Application Information

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IPC IPC(8): B32B29/06B32B27/04B32B27/28B32B9/00B32B9/06B32B7/12B32B15/04B32B15/20B32B29/00B32B38/08B32B37/12
CPCB32B29/06B32B7/12B32B9/007B32B9/06B32B15/04B32B15/20B32B27/281B32B29/00B32B37/12B32B38/08B32B2260/028B32B2260/046
Inventor 刘宇明李蔓沈自才张凯赵春晴
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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