▎ 摘　　要

NOVELTY - The utility model claims a graphene composite film, relating to the technical field of composite film, aiming at solving the problem that the existing graphene film surface mechanical strength is low, easy to break. the graphene composite film main body comprises a carbon nano-tube film substrate; one side of the carbon nano-tube film substrate is provided with a first composite multilayer film; the other side of the carbon nano-tube film substrate is provided with a second composite multilayer film; one side of the Cu substrate outside is provided with a first carbon nano-tube growth layer; the other side of the outside of the Cu substrate is provided with a second carbon nano-tube growth layer; the outer side of the first carbon nano-tube growth layer is provided with a first graphene growth layer; the outer side of the second carbon nano-tube growth layer is provided with a second graphene growth layer; the first composite multilayer film and the second composite multilayer film comprises graphene oxide dispersion coating; the first composite multilayer film and the second composite multilayer film comprises a polyvinyl alcohol coating.