▎ 摘　　要

NOVELTY - Method for improving corrosion resistance of chemical vapor deposition (CVD) graphene film, involves taking CVD graphene thin film, placing in a reaction cavity of a deposition device, introducing a low surface energy substance in the reaction cavity, subjecting the low surface energy substance to physical adsorption and chemical adsorption reaction on the surface of the CVD graphene thin film at 100-200 degrees C to obtain low surface energy molecular film with nano-clusters and uniform distribution on the surface of the CVD graphene thin film to obtain a CVD graphene/low surface energy substance composite film. USE - The method is useful for improving corrosion resistance of chemical vapor deposition graphene film. ADVANTAGE - The method is simple to operate, provides technical support for the long-term protection performance of graphene film, and improves the wetting performance of CVD graphene film and protective effect of graphene/low surface energy substance composite film layer on the metal substrate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a CVD graphene/low surface energy substance composite film obtained by the above method, comprising a CVD graphene film and a uniformly distributed low surface energy molecular film having nano clusters formed on the CVD graphene film, where the low surface energy substance contained in the low surface energy molecular film is uniformly distributed at least on the steps, boundary and defect of the CVD graphene film, and is also adsorbed on the surface of the CVD graphene film.