| abstract |
The invention relates to a preparation method of vacuum pressure impregnation resin. According to the invention, a low-smell multi-functionality low-volatilization active diluent agent is used for replacing styrene which causes severe environmental pollution. The diluent agent at least comprises two functional groups, wherein one is a double-bond functional group, and the other is a double-bond functional group or a functional group which can subject to a reaction with epoxy or a curing agent. The impregnation resin provided by the invention is advantaged in small viscosity, short gelatinizing time, excellent electrical properties, high heat-resistance, environment-friendliness, and safe application. |