▎ 摘　　要

NOVELTY - Preparation of composite film involves growing polyphenylene diamine on graphene nanoribbon, dispersing obtained nano-powder in ethylene-vinyl acetate copolymer to prepare master batch, adding 0.2-1.5 wt.% ethylene-vinyl acetate copolymer pellets, mixing and tableting. USE - Preparation of composite film used in instrument packaging bag and sealing material for photovoltaic module (claimed). ADVANTAGE - The method enables simple preparation of composite film with improved electrical and thermal conductivity, mechanical properties and electrical and thermal properties.