无机防静电热控涂层制备及性能研究  

Preparation and Properties Study of Inorganic Antistatic Thermal Control Coatings

作　　者：蔺鹏婷 靳宇 孟腾 崔林如 张立功 LIN Pengting;JIN Yu;MENG Teng;CUI Linru;ZHANG Ligong(Beijing Spacecrafts,Beijing 100190)

机构地区：[1]北京卫星制造厂有限公司,北京100190

出　　处：《宇航材料工艺》2024年第4期75-80,共6页Aerospace Materials & Technology

基　　金：国家自然科学基金(5213000262)。

摘　　要：采用共沉淀方法制备Al掺杂ZnO(AZO)防静电热控填料,并以硅酸钾为黏结剂,研究掺杂比例、颜填比等因素对涂层电阻率及热控性能的影响,制备无机防静电热控涂层。通过SEM、XRD、3D测量激光显微镜表征填料及涂层的微观组织和相成分,通过接触电阻测试仪和分光光度计评价涂层的电阻率和热控性能。结果表明:该涂层表面致密,厚度均匀,呈现出良好的成膜性,且该涂层与基材结合力好(1级)、热控性能优异(α_(s)=0.19±0.02;ε_(H)=0.92±0.02)、具有低电阻率[(3.0~18.0)×10^(5)Ω•m],并且具有优异的空间环境适应性,在实现航天器防静电热控领域有极大的应用前景。The Al-doped ZnO(AZO)antistatic thermal control filler was prepared by co-precipitation method with potassium silicate used as the binder.The influence of doping ratio,pigment-to-fill ratio and other factors on the resistivity and thermal control performance of the coating was studied,and the inorganic antistatic thermal control coating was prepared.The microstructure and phase composition of fillers and coatings were characterized by SEM,XRD,and 3D measurement laser microscope,and the resistivity and thermal control properties of coatings were evaluated by contact resistance tester and spectrophotometer.The results show that the coating has a dense surface,uniform thickness,good film-forming properties,good adhesion to the substrate(level 1),and excellent thermal control performance(α_(s)=0.19±0.02;ε_(H)=0.92±0.02),low resistivity[(3.0-18.0)×10^(5)Ω•m],and excellent space environment adaptability,which has great application prospects in the field of spacecraft anti-static thermal control.

关 键 词：热控涂层 无机涂层 防静电性能 电阻率 结合力 

分 类 号：V19[航空宇航科学与技术—人机与环境工程]