▎ 摘　　要

NOVELTY - A barrier film comprises a base film and a barrier layer provided on the base film and containing metal oxide and a phosphorus-containing compound to which graphene is bonded. USE - Barrier film. ADVANTAGE - The barrier film has excellent flexibility, transparency, moisture and gas barrier properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of barrier film, which involves preparing an aqueous solution by dissolving a metal alkoxide in water under an acid catalyst, adding graphene oxide, adding an acid, heating, adding phosphorus-containing compound, and applying resulting solution on base film.