红外隐身涂层的热老化行为研究及寿命预测  

Research on Thermal Aging Behavior of Infrared Stealth Coatings and Life Prediction

作　　者：郭慧[1] 万为鸿 汪博 郑勤 张林博[1] GUO Hui;WAN Wei-hong;WANG Bo;ZHENG Qin;ZHANG Lin-bo(University of Electronic Science and Technology of China,National Engineering Research Center of Electromagnetic Radiation Control Material,Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education(Class B),State Key Lab of Electronic Films and Integrated Devices,Chengdu 611731,Sichuan,China)

机构地区：[1]电子科技大学,国家电磁辐射控制材料工程技术研究中心,多频谱吸收材料与结构教育部重点实验室(B类),电子薄膜与集成器件国家重点实验室,成都611731

出　　处：《中国涂料》2021年第4期47-52,共6页China Coatings

基　　金：国家自然科学基金资助项目(51802037)。

摘　　要：采用实验室自制红外隐身涂层,研究了热老化对红外隐身涂层性能的影响规律,建立了相应的寿命预测模型。主要探究热老化温度(120℃、150℃)对红外隐身涂层中粉体和高分子树脂的变化,以及涂层的接触角、表面粗糙度和表面结构的变化规律。结果表明,随着热老化时间的延长,涂层中铝粉出现热氧化,高分子树脂发生热分解;随着热老化温度的上升,引起表面结构改变,导致粗糙度下降,接触角下降。最后,根据红外隐身涂层热老化试验的光泽度值,应用灰色模型实现对红外隐身涂层使用寿命的准确预测,误差平均值为13.444%。Laboratory-made infrared stealth coatings were used to investigate the effect of thermal aging behavior on properties of infrared stealth coatings,and the corresponding life prediction model was established.This paper mainly explores the influence of thermal aging temperature(120℃,150℃)on the changes of powder and polymer resin in infrared stealth coatings,as well as the variation laws of contact angles of coatings,surface roughness and surface morphologies.The results showed:the aluminum powder in the coatings was thermally oxidized and the polymer resin thermally decomposed with the thermal aging time prolonged;with the increase of thermal aging temperature,the surface structure changed,resulting in a decrease in roughness and contact angle.Finally,according to the gloss value of the thermal aging experiment of the infrared stealth coatings,the gray model is used to predict accurately the service life of the infrared stealth coatings,and the average error is 13.444%.

关 键 词：热老化 聚氨酯 红外光谱ATR 接触角 

分 类 号：TQ630.72[化学工程—精细化工]