航天器镁合金防腐-热控一体化涂层性能研究  

Performance research of anti-corrosion and thermal control integrative coating based magnesium alloy for spacecraft

作　　者：马刚 张立功 白晶莹 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：《化工新型材料》2017年第7期54-56,共3页New Chemical Materials

基　　金：国防基础科研计划重点项目(A0920132016)

摘　　要：以航天器镁合金防腐-热控一体化涂层为研究对象,分别通过盐雾试验、湿热试验和空间环境辐照试验(包括真空-紫外辐照、真空-质子辐照和真空-电子辐照)研究了涂层防腐性能和空间环境稳定性。结果表明以氟化羟基树脂和六亚甲基二异氰酸酯三聚体交联反应制得的脂肪族聚氨酯为粘结剂,制备的热控涂层具有耐湿热504h,耐盐雾腐蚀1008h的防腐性能,盐雾环境对α_S有一定影响,Δα_S为0.02;真空-紫外辐照、真空-质子辐照对α_S有一定影响,Δα_S分别为0.03和0.04;真空-紫外辐照、真空-质子辐照、真空-电子辐照均对热控涂层ε_H影响不明显,热控涂层高发射率热控特性在空间环境中稳定性好。The anti-corrosion and thermal control integrative coating was as research object,the anti-corrosion performance and stability of coating in the space environment were respectively investigated by neutral salt spray test,damp heat test and simulated space environment test（ including vacuum ultraviolet radiation,vacuum proton radiation,vacuum electron radiation）. The test results demonstrated that the thermal control coating with aliphatic urethane as binder,which from hydroxyl resin and hexamethylene diisocyanate trimer cross-linking reaction could tolerate salt spray test for 1000 hours,damp heat test for 500 hours,salt spray environment had a certain influence on the αS,ΔαSwas about 0. 02. The ultraviolet and proton radiation had certain influence on the αS,ΔαSwere 0. 03 and 0. 04,respectively. The ultraviolet,proton and electron radiation all had no significant influence on the hemisphere emissivity,the high emissivity property of coating was highly stable in space environment.

关 键 词：镁合金 防腐 热控 一体化 涂层 空间环境 

分 类 号：TG174.4[金属学及工艺—金属表面处理] V252[金属学及工艺—金属学]