High-temperature-resistant halogen-free flame-retardant insulating multilayer composite material

The invention discloses a high-temperature-resistant halogen-free flame-retardant insulating multilayer composite material, and belongs to the technical field of composite materials, the composite material is prepared by taking a mica tape as a dielectric material, a polyimide film and glass cloth as reinforcing materials, and a modified organic silicon pressure-sensitive adhesive as an adhesive, and matching with a halogen-free flame retardant; the high-temperature-resistant halogen-free flame-retardant insulating multilayer composite material prepared from the three base materials has good comprehensive performance and can be widely applied to wrapping insulation, gasket insulation and filling insulation of motor equipment. The flame-retardant system provided by the invention has the advantages of small smoke amount during combustion and no generation of corrosive and toxic gases. Test results show that the multi-layer composite material has good insulation performance, flame retardance, tensile strength an