改性TiO_(2)防污闪复合涂层的制备与研究  

Research on the Preparation of Modified TiO_(2) Composite Coatings with Anti-Fouling and Flashover Resistance

作　　者：张杰 邹君文 刘学广 李小英 ZHANG Jie;ZOU Junwen;LIU Xueguang;LI Xiaoying(Zhejiang Electric Power Boiler Pressure Vessel Inspection Institute Corporation Limited,Hangzhou 310000,China;State Grid Zhejiang Electric Power Corporation Research Institute,Hangzhou 310000,China)

机构地区：[1]浙江省电力锅炉压力容器检验所有限公司,浙江杭州310000 [2]国网浙江省电力有限公司电力科学研究院,浙江杭州310011

出　　处：《材料保护》2024年第12期114-121,共8页Materials Protection

摘　　要：为有效降低输电线路绝缘子表面积污引起的污闪事故的发生,通过将改性纳米TiO_(2)、PTFE与氟碳树脂FEVE结合,采用压缩空气喷涂技术制备出一种新型氟碳涂层材料,探讨了改性TiO_(2)粒子的最佳添加量。采用扫描电镜(SEM)、原子力显微镜(AFM)研究了涂层的微观形貌,采用接触角测量仪对其疏水性、自清洁性及抗紫外老化性进行了分析。结果表明:改性纳米TiO_(2)的最佳添加量为4%,涂层的附着力可达0级,静态水接触角最大为121°;TiO_(2)经改性后制备的防污闪复合涂层表面存在大量微纳尺度的柱状锥尖结构,粗糙度更高,其疏水性更好,自清洁性、抗紫外老化性更佳,具备优良的防污闪性能。In order to effectively reduce the occurrence of pollution flashover accidents caused by surface contamination of transmission line insulators,a new fluorocarbon coating material was prepared by combining modified nanoTiO_(2),PTFE and fluorocarbon resin FEVE using compressed air spraying technology.The optimum addition amount of modified TiO_(2) particles was discussed.The microstructure was studied using scanning electron microscopy(SEM)and atomic force microscopy(AFM).The hydrophobicity,selfcleaning properties and antiultraviolet aging resistance were analyzed using a contact angle measurement instrument.The results showed that the optimum addition amount of modified nanoTiO_(2) was 4%,the adhesion of the coating reached grade 0,and the maximum static contact angle was 121°.The surface of the antipollution flashover composite coating prepared with modified TiO_(2) exhibited numerous micronano scale columnar cone tip structures,resulting in higher roughness.Its hydrophobicity,selfcleaning ability,and antiultraviolet aging resistance were improved,demonstrating excellent antipollution flashover performance.

关 键 词：纳米 TiO_(2)改性 FEVE 自清洁 防污闪 

分 类 号：TM215[一般工业技术—材料科学与工程]