▎ 摘　　要

NOVELTY - An alcohol-resistant proton conducting composite film comprises polymer proton-conducting film consisting of graphene layer attached to 1 side of polymer proton-conducting film or between 2 layers of polymer in proton-conducting film. USE - An alcohol-resistant proton conducting composite film (claimed). ADVANTAGE - Alcohol resistance of film is improved, preparation process is simple, and bonding between graphene layer and proton-conducting film is strong. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of alcohol-resistant proton conducting composite film which involves taking chemical vapor deposited graphene substrate, paving surface of graphene-containing layer with film-forming solution containing 5-10 wt.% volatile solvent for 8-12 hours at 60-120 degrees C to obtain proton-conducting film, chemical vapor depositing graphene on proton conductive film by immersing in 0.1-2.5 M Fe3+ solution for 1-14 days to completely etch substrate, washing, and drying.