Properties and Application of New Inorganic Thermal Control Coatings
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Beijing Spacecrafts, Beijing 100190

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TG174.44

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    Abstract:

    In this paper, a high stability inorganic thermal control coating was prepared by using self-made high stability inorganic white pigment and adhesive. The thickness, surface density, thermal radiation performance, vacuum volatility, thermal cycle performance, space environment stability(vacuum-untraviolet, vacuum-proton, vacuum-electron, atomic oxygen) and adaptability of various substrate were tested and verified. The results show that the solar absorption ratio of the high stability inorganic thermal control coating is 0.07, the hemispheric emissivity is 0.90, and the surface density is 200 to 360 g/m2. After the ground simulation space environment test, the degeneration of solar absorption is small,indicating that it has excellent space environment stability and is suitable for various substrate surfaces.

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History
  • Received:July 05,2021
  • Revised:September 22,2021
  • Adopted:September 09,2021
  • Online: January 13,2022
  • Published: