▎ 摘　　要

NOVELTY - Graphite film comprises polyethylene terephthalate film, first thermal conductive adhesive layer, internal thermal conductive layer, second thermal conductive adhesive layer, buffer layer, flame retardant layer and polyethylene film from bottom to top. The first thermal conductive adhesive layer comprises metal base layer and silica gel layer is arranged on the upper end surface of metal base layer, where the metal base layer is provided with first groove, silicone layer with first protrusion that matches with the first groove, upper end surface of the second thermal conductive adhesive layer with a grid structure, and grid filled with heat dissipation scales. The internal heat conduction layer comprises graphene layer, phase change type heat conduction layer and third heat conduction adhesive layer from inside to outside. The surface where the buffer layer and the flame-retardant layer are in contact is provided with second protrusions and second protrusions arranged in an array. USE - The graphite film is used for electronic devices. ADVANTAGE - The graphite film transforms from a solid state to a solid state at high temperature, has large heat storage capacity, ensures that the phase change volume does not change significantly, has high thermal conductivity, improves the thermal stability and reliability of the graphite film, provides the graphite film with a heat capacity effect, increases the heat dissipation efficiency, and meets the heat dissipation requirements of high-energy-consuming electronic devices.