γ射线对低红外发射率涂层电化学腐蚀行为的影响  

Effect ofγirradiation on Electrochemical Corrosion Behaviour of Low Infrared Emissivity Coating

作　　者：马志远[1] 徐国跃[1] 谭淑娟[1] 钱雪[1] 王文弟 刘凯[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京211106

出　　处：《南京航空航天大学学报》2015年第5期709-712,共4页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：国家自然科学基金(90505008)资助项目;国家自然科学基金青年基金(51403102)资助项目;江苏省自然科学基金青年基金(SBK2014042556)资助项目;江苏高校优势学科建设工程资助项目

摘　　要：将环氧改性有机硅树脂用60 Co源γ射线辐照处理,利用傅里叶变换红外光谱仪（Fourier transform infrared spectrometer,FT-IR）对树脂结构变化进行表征。制备成低红外发射率涂层后测试凝胶分数、塔菲尔曲线以及交流阻抗来综合研究耐腐蚀性能并利用扫描电镜观察涂层表面的形貌。结果表明采取该措施可以提高涂层的交联度,在不影响8~14μm波段红外发射率的前提下,能够改善涂层的耐腐蚀性能。The silicone resins modified by epoxy is irradiated by the 60 Co-γirradiation and the chemical structure change of the resin before and after irradiating is demonstrated by the Fourier transform infrared（FT-IR）spectrometer.The corrosion resistance of the prepared infrared emissivity coating is studied by using gel fraction,polarization curves,electrochemical impedance spectroscopy and scanning electron microscope（SEM）surface analysis.The results show that the corrosion resistance is superior by using60Co-γirradiation without performance degradation of infrared emissivity between 8—14μm,since the degree of crosslinking is improved.

关 键 词：涂层 环氧改性有机硅树脂 Γ射线 交联度 红外发射率 耐腐蚀性能 

分 类 号：TQ324.2[化学工程—合成树脂塑料工业] TQ323.5