▎ 摘　　要

NOVELTY - A flexible graphene oxide film is formed by overlapping corrugated graphene oxide sheets, and has a crystallinity of less than 60%. USE - Flexible graphene oxide film (claimed). ADVANTAGE - The flexible graphene oxide film has elongation at break of 15-50% and controlled macroscopic properties, and can be prepared by simple and easy process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of flexible graphene oxide film, which involves dispersing graphene oxide in a good solvent, obtaining a graphene oxide solution with concentration of 5-20 mg/mL, subjecting to film-forming process, immersing the film in a poor solvent, gelatinizing, and drying.