▎ 摘 要
NOVELTY - Preparing graphene film involves laminated polyimide film under pressure at temperature lower than the decomposition temperature of thermoplastic polyimide film to form a carbon graphene film. The resulting carbon graphene film is carbonized to obtain desired graphene film. USE - Method for preparing graphene film (claimed). ADVANTAGE - The prepared graphene film has high thermal conductivity, good flexibility and good shielding effect. It has good application prospects.