中国空间科学技术

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有机硅热控涂层在模拟空间环境下的原位性能

谭必恩,曾一兵,石苏星,张廉正   

  1. 北京航空材料研究院!北京100095,航天材料及工艺研究所!北京100076,航天材料及工艺研究所!北京100076,航天材料及工艺研究所!北京100076
  • 发布日期:2001-08-25

Behaviors of Addition Type Silicone Thermal Control Coatings in Space Environment Simulated

Tan Bien(Beijing Institute of Aeronautic Materials,Beijing 100095)Zeng Yibing Shi Suxing Zhang Lianzheng (Institute of Aerospace Materials and Processing,Beijing 100076)   

  • Online:2001-08-25

摘要: 研究了热控涂层在地面模拟空间环境下的性能变化 ;原位测定了紫外、电子辐照过程中热控涂层的性能变化 ;考察了 K2 Si O3包覆 Zn O情况对涂层性能的影响 ;用扫描电镜 ( SEM)对辐照前后涂层表面微观形貌的变化进行了观察。结果表明 ,无论是缩合型的硅树脂还是加成型硅橡胶 ,在加入 Zn O填料后 ,耐紫外辐照的能力都有明显的提高 ;不同种类涂层在真空紫外辐照作用下表现出不同规律。硅酸钾包覆 Zn O对于有机硅树脂和加成型硅橡胶作基料的热控涂层影响也不同。加成型硅橡胶制备得到的热控涂层有非常优异的抗电子辐照性能

关键词: 温控涂层, 空间环境仿真, 有机硅, 性能测试, 分析

Abstract: The behaviors of thermal control coating in a simulated space environment are determined.The property changes of silicone thermal control coatings during the UV exposed process and electron exposed process are monitored in-situ.The property changes of different materials are compared.SEM observes the morphology of coatins.ZnO covered with K 2SiO 3 has different effects on property of coatings for both silicone rubber adhesives and silicone resin adhesives,and different bleach phenomenon is observed and its reason is discussed in briefly.