High-insulation high-flame-retardant double-component epoxy coating and preparation method thereof

The invention relates to a high-insulation high-flame-retardant double-component epoxy coating. The coating is characterized by being formed by mixing and curing a component A and a component B according to a weight ratio of 1: 1 to 1: 1.5 during use, wherein the component A is mainly prepared from the following components in percentage by weight: 10.0%-50.0% of organic silicon modified epoxy resin, 15.0%-40.0% of nano-SiO2 toughened epoxy resin, 10.0%-20.0% of a first plasticizer and 15.0%-40.0% of aluminum hydroxide; and the component B is mainly prepared from the following components in percentage by weight: 5.0%-25.0% of an amine curing agent, 10.0%-20.0% of a second plasticizer, 20.0%-50.0% of polyphosphate and 20.0%-50.0% of polytetrafluoroethylene. The coating has good insulating and flame-retardant properties. 本发明涉及一种高绝缘高阻燃双组份环氧涂层，其特征在于，由使用时按照重量比为1:1～1:1.5的A组分和B组分混合后固化而成；所述A组分主要由以下重量百分比的各组分制备而成：有机硅改性环氧树脂10.0％～50.0％、纳米SiO2增韧环氧树脂15.0％～40.0％、第一增塑剂10.0％～20.0％以及氢氧化铝15.0％～40.0％；所述B组分主要由以下重量百分比的各组分制备而成：胺类固化剂