▎ 摘　　要

NOVELTY - A graphene oxide-based high-barrier nanocomposite film comprises two upper and lower layers of film. A layer of graphene oxide-based nanocomposite adhesive film is provided between the two upper and lower layers of film. USE - Graphene oxide-based high-barrier nanocomposite film used for packaging food and medicine. ADVANTAGE - The graphene oxide-based high-barrier nanocomposite film has excellent transparency, and high barrier and mechanical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of graphene oxide-based high-barrier nanocomposite film, which involves (1) adding graphene oxide to solvent, and ultrasonically dispersing at room temperature for 40-90 minutes to obtain colloidal suspension of graphene oxide, (2) adding the colloid suspension of graphene oxide to adhesive, and mechanically stirring at 20-45 degrees C for 60-120 minutes to obtain graphene oxide nanocomposite adhesive, (3) applying graphene oxide nanocomposite adhesive on a surface of a film by rolling using dry composite method, and drying the adhesive to form film, and covering other surface of the adhesive with another layer of film so as to bond the two layers, and (4) curing the composite film in a chamber at 30-60 degrees C for 48-120 hours.