▎ 摘　　要

NOVELTY - Preparing graphene or graphite film/carbon fiber resin-based composite material laminated plate involves: (1) carrying out stamping and punching on high-thermal-conductivity graphene or graphite film, in order to increase mechanical shear strength between laminated layers of composite material layers, to obtain a mesh-shaped graphene or graphite film, adjusting the size and the density of the holes by controlling the punching technology through a die, and drying in a vacuum drying oven; (2) infiltrating the mesh-shaped graphene or graphite film into a polymer resin matrix to obtain a mesh-shaped graphene or graphite film prepreg; and (3) sequentially laminating the graphene or graphite film prepreg and unidirectional carbon fiber prepreg, and adjusting the number of graphene or graphite film prepreg and unidirectional carbon fiber prepreg according to the required thermal and mechanical properties to obtain two outer layers of laminated structure made of carbon fiber prepreg. USE - The method is useful for preparing graphene or graphite film/carbon fiber resin-based composite material laminated plate. ADVANTAGE - The method enables simple preparation of graphene or graphite film/carbon fiber resin-based composite material laminated plate with strong practicability, high cutting performance, flexibility and thermal conductivity, and reduced energy consumption in an environmentally-friendly manner. DETAILED DESCRIPTION - Preparing graphene or graphite film/carbon fiber resin-based composite material laminated plate involves: (1) carrying out stamping and punching on high-thermal-conductivity graphene or graphite film, in order to increase mechanical shear strength between laminated layers of composite material layers, to obtain a mesh-shaped graphene or graphite film, adjusting the size and the density of the holes by controlling the punching technology through a die, and drying in a vacuum drying oven; (2) infiltrating the mesh-shaped graphene or graphite film into a polymer resin matrix to obtain a mesh-shaped graphene or graphite film prepreg; (3) sequentially laminating the mesh-shaped graphene or graphite film prepreg and unidirectional carbon fiber prepreg, and adjusting the number of mesh-shaped graphene or graphite film prepreg and unidirectional carbon fiber prepreg according to the required thermal and mechanical properties to obtain two outer layers of laminated structure made of carbon fiber prepreg; (4) subjecting the prepreg obtained by laminating the structure obtained above to needling treatment or Z-pins treatment to the penetration thickness of the surface, then filling the needle-punched hole with a heat-conducting filler such as carbon black, graphene, carbon nanotubes, boron nitride and a portion of carbon fibers, and improving the interlayer shear strength of the composite material and the thermal conductivity in the out-of-plane direction using the vertically-oriented fillers to prepare a prepreg composite material plate; and (5) putting the prepreg composite material plate obtained in step (4) into a hot press machine bag to carry out segmented heating and pressure curing to obtain the product.