摘要
为了指导防污闪涂料开发中常温固化氟碳类树脂成膜物的选型,采用FT-IR、AFM、紫外老化、热重分析、接触角测试、体积电阻率和高压电容电桥对其结构和性能进行表征。结果表明:FEVE基I型和II型氟碳树脂固化剂的最佳质量分数分别为19%和24%。在最佳固化剂含量下,FEVE基I型和II型氟碳树脂的接触角分别为91°和104°。经800 h紫外老化后,氟碳树脂的外观颜色、憎水性、硬度、附着力、热分解温度及分子结构均未发生变化。经过30 min的超声雾润湿后,氟碳树脂的交流湿闪电压在25 kV左右,说明FEVE基氟碳树脂具有优异的电气绝缘性能和耐老化性能,是良好的防污闪涂料开发用基料。
In order to guide the selection of fluorocarbon resin film forming material cured at room temperature in the development of anti-pollution flashover coating,the structure and properties of fluorocarbon resin film forming materials were characterized by FT-IR,AFM,UV ageing,thermogravimetric analysis,contact angle test,volume resistivity and highvoltage capacitor bridge.The results show that the optimal mass fraction of curing agent for FEVE-based type I and type II fluorocarbon resins are 19%and 24%,respectively.Under the optimal curing agent content,the contact angle of FEVEbased type I and type II fluorocarbon resins are 91°and 104°,respectively.After UV ageing for 800 h,the appearance color,hydrophobicity,hardness,adhesion,thermal decomposition temperature,and molecular structure do not change.After 30 min of ultrasonic fog wetting,the AC wet lightning voltage of fluorocarbon resin is about 25 kV,indicating that the FEVEbased fluorocarbon resin has excellent electrical insulation properties and ageing resistance,and is a good base material for the development of antifouling flashover coatings.
作者
李文静
王晓明
姚硕
朱耿增
李辛庚
LI Wenjing;WANG Xiaoming;YAO Shuo;ZHU Gengzeng;LI Xingeng(State Grid Shandong Electric Power Research Institute,Jinan 250002,China)
出处
《绝缘材料》
CAS
北大核心
2023年第11期35-40,共6页
Insulating Materials
