Preparation method of high-insulativity heat-conducting gasket

The invention discloses a preparation method of a high-insulativity heat-conducting gasket. The preparation method comprises the following steps: S1, preparing raw materials for preparation; s2, preparing equipment for preparation; s3, preparing heat-conducting particles; s4, performing surface treatment on the heat-conducting particles; s5, carrying out double-roller mixing; s6, vulcanizing a flat plate; s7, carrying out secondary vulcanization; s8, preparing a release film; and S9, adhering the prepared release film to the front surface and the back surface of the gasket for packaging. According to the preparation method of the high-insulativity heat-conducting gasket, through the sticky blue release film, the high-insulativity heat-conducting gasket has the advantages of being capable of being visually distinguished and high in temperature resistance during use, meanwhile, the finished product is softer and more flexible, the addition amount in the material is larger, the cost is low, the heat conductivity