航天器用镁合金防腐-热控一体化涂层制备工艺研究  

Study on the Preparation of Anti-corrosion and Thermal Control Integrative Coatings for Magnesium Alloy in Spacecrafts

作　　者：马刚 张立功 王兵存 于金花 张家强 陈袁 

机构地区：[1]北京卫星制造厂,北京100190

出　　处：《中国涂料》2017年第1期59-63,共5页China Coatings

基　　金：国防基础科研资助项目(A0920132016)

摘　　要：针对航天器在地面装配、测试期间镁合金材料防腐蚀和在轨期间镁合金材料高发射率辐射换热需求,通过涂层组分配比、涂层厚度对涂层性能影响研究,制备了一种半球发射率(εH)≥0.88、真空总质量损失(TML)≤1%、可凝挥发物(CVCM)≤0.1%的防腐-热控一体化涂层。制备的涂层可耐受1 008 h中性盐雾试验、504 h湿热试验和-196~100℃的100次冷热交变试验,具备良好的防腐蚀和热控性能,可用于航天器镁合金材料表面防腐和热控处理。In order to meet the needs of anti-corrosion as well as radiation heat transfer with high emissivity of magnesium alloy in spacecrafts, a kind of anti-corrosion and thermal control integrative coatings with hemispherical emissivity above 0.88, total mass loss（TML） less than 1%, collected volatile condensable material（CVCM） less than 0.1% was prepared through the studies on the effects of component proportion and thickness of coatings on the performances of coatings. The prepared coatings can tolerate neutral salt spray test for 1 008 hours, damp heat test for 504 hours, cold and hot alternative test（from-196 ℃ to 100 ℃）for 100 times. It showed that anti-corrosion and thermal control properties of the coatings were excellent, so it could be applied to the magnesium alloy in spacecrafts

关 键 词：镁合金 防腐 热控 涂层 制备工艺 航天器 

分 类 号：TQ637[化学工程—精细化工] V45[一般工业技术—材料科学与工程]