地球同步轨道长寿命卫星热控涂层太阳吸收率性能退化研究

文章介绍了15年地球同步轨道环境对卫星表面太阳吸收率性能影响的试验模拟研究，研究结果为长寿命卫星热设计及热控涂层选择和研制提供可靠依据；介绍自行研制的空间低能综合环境试验设备、太阳吸收率原位测试系统和空间低能综合环境模拟试验方法，并对航天器常用的S781白漆、SR107-ZK白漆、F46镀银和OSR二次表面镜热控材料进行空间低能综合环境模拟试验，获得了这些热控涂层在地球同步轨道15年期间太阳吸收率性能退化模拟数据，与已有的飞行试验数据进行对比研究，取得满意的结果。

Study on Long-term Degradation of Solar Absorptance Properties of Geostationary Satellite Thermal Control Coatings

This paper introduces a study of 15 years geostationary environmental effects on solar absorptance degradation at outer surface of satellite, in order to supply reliable bases for thermal control design and material selection. A kind of combined low energy irradiation simulation test methods is studied. A combined low energy environment simulation test facility and a solar absorptance in-situ measuring system developed by CAST is briefly introduced. A long-term solar absorptance degradation simulation test of satellite thermal control coatings such as S781 white paint, SR107-ZK white paint, silvered F46, OSR etc is carried out on that facility. The test data for 15 years environmental effects on solar absorptance degradation of these thermal control coatings are obtained. The comparison between the simulation test and flight test are made to prove the reality of the simulation.