▎ 摘　　要

NOVELTY - Preparing large-area graphene oxide film involves preparing oxidized graphene sol. The oxidized graphene sol is prepared by adding the double-sided adhesive to the coating machine on the smooth and soft substrate. Coating film having a coating rate of 2-4 cm/second and a coating thickness of 300-500 mu . The raw material is dried in an oven at a drying temperature of 40-60 degrees C. The product is stripped to obtain the desired product. USE - Method for preparing large-area graphene oxide film (claimed). ADVANTAGE - The method enables to prepare large-area graphene oxide film that has strong bending property.