▎ 摘　　要

NOVELTY - Manufacturing composite film including reduced graphene composite, comprises (S1) preparing graphene oxide from graphite, (S2) preparing reducing polymer solution by mixing polyvinyl alcohol-based or alcohol group-containing reducing polymer and solvent, (S3) adding first coatability promotion solvent in the reducing polymer solution, (S4) preparing graphene oxide-reducing polymer solution by mixing graphene oxide and the reducing polymer solution, and (S5) heat-treating the graphene oxide-reducing polymer mixed solution. USE - The composite film is useful for manufacturing conductive film, preferably transparent conductive film and electromagnetic wave shielding film (all claimed). ADVANTAGE - The composite film provides good electrical properties to the conductive film, transparent conductive film and electromagnetic wave shielding film at low temperatures. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic process flow for manufacturing composite film including reduced graphene composite (Drawing includes non-English language text). Graphene oxide preparation step (S1) Reducing polymer solution preparation step (S2) First coatability promotion solvent addition step (S3) Graphene oxide-reducing polymer solution graphene oxide-reducing polymer solution step (S4) Heat-treatment step (S5)