▎ 摘　　要

NOVELTY - Multifunctional packaging material comprises 95-99.9 pts. wt. polyester macromolecule material and 0.1-5 pts. wt. graphene hybrid macromolecule. USE - The multifunctional packaging material is useful in packaging of commodity, chemicals, building materials, food, food additives, and medicines (claimed). ADVANTAGE - The packaging material: has excellent gas barrier property, high strength, heat resistance and high antibacterial efficiency (non-migration type); and is biodegradable. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing multifunctional packaging material, comprising either adding 0.1-5 pts. wt. graphene hybrid macromolecule into chloroform to obtain homogeneous solution, then dissolving 95-99.9 pts. wt. polyester in the solution, and then pouring the above solution into a film to obtain final product or melt-blending 0.1-5 pts. wt. graphene hybrid macromolecule and 95-99.9 pts. wt. polyester macromolecule material at certain temperature by an extruder or an internal mixer, and subjecting to molding process to obtain final product.