▎ 摘　　要

NOVELTY - Transferring large area graphene film by chemical vapor deposition (CVD) comprises e.g. using CVD method to prepare graphene film on a metal foil substrate, roller pressing polymer film layer on both surface of metal foil substrate with graphene film, wrapping polymer film/graphene composite film around the front roller shaft, peeling metal foil substrate from polymer film/graphene composite film, or heat rolling both surfaces of polymer film using two roller shaft, heat roll pressing metal foil substrate with polymer film using roller shaft, and interacting polymer film and graphene. USE - The method is useful for transferring large area graphene film by chemical vapor deposition (claimed). ADVANTAGE - The method realize pollution-free transfer process, can greatly reduce the cost, saves energy and reduces the emission, has great application value in the large-scale production field. DETAILED DESCRIPTION - Transferring large area graphene film by chemical vapor deposition (CVD), comprises (i) using CVD method to prepare graphene film on a metal foil substrate, (ii) roller pressing polymer film layer on both surface of metal foil substrate with graphene film, wrapping polymer film/graphene composite film around the front roller shaft, winding in the next step, peeling metal foil substrate from polymer film/graphene composite film through the auxiliary gas, or heat rolling both surfaces of polymer film using two roller shaft, heat roll pressing metal foil substrate with polymer film using roller shaft, under certain conditions of pressure and temperature, interacting polymer film and graphene, using roller shaft winding, and achieving separation of graphene layer and metal foil substrate, and (iii) transferring to a polymer film-graphene composite film or single graphene film.