▎ 摘　　要

NOVELTY - Graphene film preparation involves stirring graphene oxide by ultrasonic wave, filtering impurities, coating the graphene oxide solution onto the polyethylene terephthalate film, continuously drying, and separating the formed graphene oxide film and the polyethylene terephthalate film to obtain a graphene oxide film. The obtained graphene oxide film is placed in a carbonization furnace for carbonization, and then graphitized to obtain the graphene film. USE - Method for preparing graphene film. ADVANTAGE - The method prepares the graphene film in a simple, cost-effective and eco-friendly manner with strong shielding performance and good heat dissipation performance. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation depicting shielding test of the graphene heat conductive film. (Drawing includes non-English language text).