中国空间科学技术

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航天器表面材料充电性能研究—关于RTV-Ⅱ和13-17涂层的评价

卢榆孙;李华;王乃东;刘玉魁;   

  1. 兰州物理研究所,兰州物理研究所,兰州物理研究所,兰州物理研究所,
  • 发布日期:1987-10-25

STUDY OF CHARGING BEHAVIOUR OF SPACECRAFT SURFACE MATERIALS EVALUA TION OF RTV—Ⅱ AND 13—17 PAINTS

Lu Yusun, Li Hua, Wang Neidong, Liu Yukui (Lanzhou Physics Institute)   

  • Published:1987-10-25

摘要： 本文报道了RTV-Ⅱ黑漆和13-17白色涂层二种航天器温控材料的电导在综合空间环境条件下的实验结果。实验表明RTV-Ⅱ涂层材料的电导从1984年到1986年,几乎每年下降一个量级,因而充电状态明显改变。13-17涂层材料的电导对空间真空环境响应不明显,但对电子辐照和光辐照响应显著,尤其对光辐照存在强烈的记忆效应。预测该涂层在轨道上由光照区进入星蚀区也不会出现明显充电现象。

关键词: 材料性能, 光电材料, 航天材料, 环境模拟, 表面电阻率, 调温涂层, 性能分析

Abstract: In this article, the experimental results of response of the conductivity vs combined environment about RTV-Ⅱ paint and the 13-17 white thermal control paint have been given. The experiments show that first: the conductivity of RTV-Ⅱ almost drops by one order of magnitude every year from 1984 to 1986. Therefore, the change of charging state occures on its surface. second: the response of conductivity of 13-17 paint vs space vacuum is not obvious, but the response of conductivity vs electron and light irradiation is very large. Especially, there is a strong memory effect under light irradiation. It is expected that the charging phenomenon on the paint surface does not appear in orbit when the spacecraft goes into eclipse from sunshine.