▎ 摘　　要

NOVELTY - Producing a polymer film involves preparing a dispersion solution by ultrasonically treating graphene oxide having a lateral size of 3-45 mu m and dispersing it in distilled water or a tetrahydrofuran/toluene mixed solvent, preparing a mixed solution by adding a polyvinyl alcohol or polyvinylidene chloride polymer to the dispersion solution, magnetically stirring the mixed solution, and coating and drying the stirring solution obtained by stirring on a Polyethylene terephthalate (PET) film on a hot plate using a wire bar. USE - Producing a polymer film. ADVANTAGE - The polymer film provide an excellent moisture and gas barrier properties by using graphene oxide or alkylated graphene oxide.