▎ 摘　　要

NOVELTY - Preparation of polyvinyl alcohol-modified graphene oxide nanocomposite aqueous dispersion comprises modifying graphene oxide with sulfamate to obtain modified graphene oxide dispersion; and adding polyvinyl alcohol to the modified graphene oxide aqueous dispersion. USE - The method is used for preparing polyvinyl alcohol-modified graphene oxide nanocomposite aqueous dispersion for food, electronics, medicine, adhesives, inks and coating fields (claimed). ADVANTAGE - The method enhances the interaction with the polyvinyl alcohol to prepare the composite water dispersion with high compatibility and good water dispersibility and improves the mechanical property and barrier property of the material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for application of the nanocomposite water dispersion liquid comprising coating polyvinyl alcohol-modified graphene oxide nanocomposite water dispersion liquid and drying.