输变电设备用防腐配套涂层体系耐老化性研究  

Study on UV Aging Resistance Performance of Anti-corrosion Coating for Power Transmission and Transformation Equipment

作　　者：易盼 杨臻 徐金 房正刚 王卫东 王熙俊 YI Pan;YANG Zhen;XU Jin;FANG Zhenggang;WANG Weidong;WANG Xijun(China Electric Power Research Institute,Beijing 100192,China;Jibei Electric Power Research Institute,State Grid Jibei Electric Power Co.,Ltd.,North China Electric Power Research Institute Co.,Ltd.,Beijing 100045,China)

机构地区：[1]中国电力科学研究院有限公司,北京100192 [2]国网冀北电力有限公司电力科学研究院(华北电力科学研究院有限责任公司),北京100045

出　　处：《变压器》2024年第8期40-45,共6页Transformer

基　　金：变电站钢构支架防腐性能提升与环保性能评价技术研究(5200-202355145A-1-1-ZN)。

摘　　要：本文作者采用紫外人工加速老化试验的方法研究了四种输变电设备用防腐涂层的老化过程,并结合涂层性能检测技术、微观形貌测试技术、电化学阻抗谱等技术阐明了涂层紫外老化失效机制,提出了涂层老化失效性能评价指标。结果表明,4种涂层在老化试验后均表现出了明显的失光现象,400h后涂层失光速率减缓。结合电化学交流阻抗谱测试结果发现,涂层失光率的变化能显著反应涂层老化性能的改变。此外,老化试验后涂层孔隙率明显增大,涂层孔隙率变化趋势与涂层失光率变化趋势呈正相关。The aging process of four kinds of anti-corrosion coatings for power transmission and transformation equipment was studied through the ultraviolet(UV)artificial accelerated aging test,micromorphology detection and electrochemical impedance spectroscopy(EIS)technique.The aging failure mechanism of the coatings was elaborated.The evaluating indicator using for coating aging failure was proposed.The results showed that obvious gloss loss phenomenon occurred for the coatings after aging test and the gloss loss rate slowed down after 400h.The gloss loss rate of coatings could significantly reflect the change law of coating aging performance.The coating porosity increased markedly after the aging test,and the change trend of coating porosity was positively correlated with the gloss loss rate of coatings.

关 键 词：输变电设备 防腐涂层体系 紫外加速老化 电化学交流阻抗 孔隙率 

分 类 号：TM404[电气工程—电器]