户外用脂环族环氧树脂浇注料的研制与应用

Preparation and Appliction of Alicyclic Epoxy Casting Materials for Outdoor High Voltage Insulation

采用自行研制的脂环族缩水甘油醚型环氧树脂、改性甲基六氢苯酐及经特殊处理的活性填料为主要原料,经真空脱泡、研磨分散制得户外用环氧树脂浇注料。产品具有优异的耐紫外线辐照、耐湿热老化、耐化学腐蚀及良好的机械、电气绝缘性能,经过了户外长期运行考验。

The epoxy resin insulating casting materials used in outdoor weather conditions are prepared with cycloaliphatic glycidyl ether epoxy resin, modified MHHPA hardener and surface active inorganic filers. The manufacturing process involves some steps such as taking off volatility in vacuum and grinding dispersion by high-speed mixer and grinding wheel, etc. The effects of kinds and amounts of epoxy resin, hardener and filler on performances of casting materials are studied. The casing materials have good resistibilities of high voltage,UV irradiation ,temperature variation and mechanical impact,which have been proofed by long-term operation in outdoor electric devices such as insulator and power transformer.