▎ 摘　　要

NOVELTY - Repairing a defect of a chemical vapor deposition (CVD) graphene film involves providing CVD graphene film. The CVD graphene film is placed in a liquid phase reaction system, and a repairing substance is added to the liquid phase reaction system, and the repairing substance is placed at a defect position of the CVD graphene film at 50-120 degrees C, and carrying out chemisorption and physisorption reactions. The repair substance film layer with uniformly distributed nanoparticles is deposited on the surface of the CVD graphene film to obtain a CVD graphene/repair substance composite film. USE - Method for repairing defect of chemical vapor deposition (CVD) graphene film. ADVANTAGE - The method enables to repaire a defect of a chemical vapor deposition (CVD) graphene film is effectively repair the defects of CVD graphene films, and it is simple to operate and can provide technical support for the highly effective anticorrosive performance of graphene films. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a CVD graphene/repairing substance composite film, which comprises a CVD graphene film; And a uniformly distributed nanoparticle repairing material film layer formed on the CVD graphene film, where repair substance contained in the repair substance film layer repairs at least defect positions such as vacancies, boundaries, point defects, and wrinkles of the CVD graphene film, and is also physically adsorbed on the surface of the CVD graphene film.