▎ 摘　　要

NOVELTY - Manufacture of barrier film involves modifying graphene oxide with inorganic particles, adding modified graphene oxide to a silica sol-gel solution, coating the resulting solution on a base film to form a coating layer, and coating a polyvinyl polymer on the coating layer to form another coating layer. USE - Manufacture of barrier film is used for packaging materials of food and medical supplies, and electronic-device encapsulating materials. ADVANTAGE - The barrier film having excellent water barrier property and flexibility is produced efficiently with high productivity.