▎ 摘　　要

NOVELTY - The graphene elastic film comprises an elastic film formed by cross-linking two graphene films having semispherical convex structure. USE - Graphene elastic film used in conductive devices. ADVANTAGE - The graphene elastic film has excellent flexibility, repeated fold more than 100000 times without leaving a crease, good thermal conductive, elastic elongation at break 30-50%, electrical conductivity of 600-1000 seconds/cm. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene elastic film, which involves: (A) dissolving 100 pts. wt. graphene oxide in water to prepare aqueous solution of graphene oxide having a concentration of 6-30 mg/ml; (B) adding 0.1-10 pts. wt. auxiliary agent under ultrasonic dispersion to give graphite oxide film; (C) drying the obtained graphite oxide film naturally; (D) reducing the dried graphite oxide film in hydroiodic acid solution; (E) placing the reduced graphite oxide film in ethanol at 40-90 degrees C for 5-10 minutes to wash out surface; and (F) drying naturally in air to obtain the graphene elastic film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic surface view of the graphene elastic film.