GRAPHENE FILM HAVING GRAPHENE OXIDE/POLY VINYL ALCOHOL COMPOSITE AND MANUFACTURING METHOD OF THE SAME

摘要

PURPOSE: A graphene film and a manufacturing method thereof are provided to improve dispersity of graphene by not generating cohesion during a chemical reduction of a graphene oxide solution. CONSTITUTION: A manufacturing method of graphene films comprises the following steps: forming a graphene oxide dispersion by dispersing graphite oxide into a dispersive medium; forming a graphene oxide-polyvinyl alcohol complex solution by mixing polyvinylalcohol with the graphene oxide dispersion; forming the graphene dispersion by chemical reducing the graphene oxide - polyvinyl alcohol complex solution; and drying the graphene dispersion. The graphene film contains the graphene oxide - polyvinyl alcohol composite.