▎ 摘　　要

NOVELTY - A gas-barrier film comprises graphene oxide and polyvinyl alcohol binder resin at a weight ratio of 50-99:1-50. USE - Gas-barrier film is used for manufacturing tank for storing hydrogen. ADVANTAGE - The gas-barrier film has excellent gas interception property, and desired transmission coefficient and gas permeation performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of gas-barrier film, which involves preparing a graphene oxide solution by dissolving graphene oxide in water, increasing the concentration of graphene oxide in the graphene oxide solution mixed with polyvinyl alcohol solution, vacuum-filtering mixed solution, and preparing gas-barrier film.