低α_s有机硅热控涂层及其空间防护作用研究  

Study of Low α_ s Organic Thermal Control Coatings and Their Protection for Space Materials

作　　者：张蕾[1] 严川伟[1] 孙刚[2] 童靖宇[2] 李金洪[2] 曹楚南[1] 

机构地区：[1]中国科学院金属研究所金属腐蚀与防护国家重点实验室,沈阳110016 [2]北京卫星环境工程研究所,北京100029

出　　处：《中国空间科学技术》2003年第2期15-22,共8页Chinese Space Science and Technology

基　　金：国家重点基础研究专项经费资助 (G19990 65 0 )

摘　　要：介绍了三种有机硅热控涂层的组成、工艺及性能 ,并讨论了影响涂层稳定性的因素。用LAMBDA 9分光度计和扫描电镜 (SEM )对在模拟原子氧 (AO)环境中的有机热控涂层太阳光吸收率 (αs)的变化和防护作用进行表征研究。结果表明 ,这些涂层均有良好的空间稳定性 ,对AO辐照有较强的防护效果。该研究建立了空间材料新的防护体系。尤其是 9 5涂层的αs最低 。The white control coating with low ratio of solar absorptance to emittance is successfully prepared Three low sunlight absorption siloxane thermal control coatings are developed and the factors( resin type, filler type, ratio of resin to pigment ect) which influence the protection are also investigated Surface protection and transfor ratio of thermal control coating are analyzed after exposure to ground state fast atomic oxygen(AO)radiation environment using LAMBDA 9 spectroradimeter and scanning electron microscope The result shows that siloxane thermal control coatings has excellent protection against anti AO effects and good stability for space environment Specialy, 9 5 siloxane thermal control coating has the lowest α s , and the most stable

关 键 词：有机硅热控涂层 空间防护作用 涂层稳定性 太阳光吸收率 空间涂层 航天器 热控制 

分 类 号：V255.5[一般工业技术—材料科学与工程] V444.3[航空宇航科学与技术—航空宇航制造工程]