▎ 摘　　要

NOVELTY - An aluminum foil-based composite packaging material comprises heat-sealing layer, first graphene layer, aluminum foil layer, second graphene layer, first adhesive layer, kraft paper layer, second tie layer, film layer and printing layer. The heat-sealing layer includes 32-50 pts. wt. metallocene polyethylene, 15-32 pts. wt. vinyl pyrrolidone-vinyl acetate copolymer, 6-18 pts. wt. 2-acrylamido-2-methacrylic acid, 4-13 pts. wt. sulfonic acid copolymer, 4-15 pts. wt. citraconic acid, 3-8 pts. wt. methoxy polyethylene glycol, 3-8 pts. wt. nylon fiber and 2-9 pts. wt. cellulose acetate. USE - Aluminum foil-based composite packaging material used for food packaging. ADVANTAGE - The material has good anti-tearing performance and sealing performance, and good acid and alkali resistance. DETAILED DESCRIPTION - An aluminum foil-based composite packaging material comprises heat-sealing layer, first graphene layer, aluminum foil layer, second graphene layer, first adhesive layer, kraft paper layer, second tie layer, film layer and printing layer. The heat-sealing layer is made from 32-50 pts. wt. metallocene polyethylene, 15-32 pts. wt. vinyl pyrrolidone-vinyl acetate copolymer, 6-18 pts. wt. 2-acrylamido-2-methacrylic acid, 4-13 pts. wt. sulfonic acid copolymer, 2-11 pts. wt. 2-acrylonitrile, 4-15 pts. wt. citraconic acid, 3-8 pts. wt. methoxy polyethylene glycol, 3-8 pts. wt. nylon fiber and 2-9 pts. wt. cellulose acetate. The adhesive layers comprise 22-36 pts. wt. polycarbodiimide, 5-18 pts. wt. dimethyl dichlorosilane, 4-13 pts. wt. amine-modified epoxy acrylate, 2-8 pts. wt. 2-aminoiso-butyronitrile, 5-11 pts. wt. maleic anhydride, 2-7 pts. wt. ethylene-vinyl acetate copolymer, and 5-12 pts. wt. terpene resin. The graphene layers are obtained immersing aluminum foil layer in graphene solution and electrochemically depositing. The thickness ratio of heat sealing layer, kraft paper layer and thin film layer is 1:0.5-1.2:0.2-0.6. An INDEPENDENT CLAIM is included for preparation of the aluminum foil-based composite packaging material comprising taking raw materials of heat sealing layer, heating at 120-150 degrees C, mixing for 10-25 minutes, extruding, and fusing; mixing terpene resin, amine modified epoxy acrylate and polycarbodiimide in mixer, stirring and mixing for 20-40 minutes at 70-90 degrees C, adding maleic anhydride, ethylene-vinyl acetate copolymer, dimethyl dichlorosilane and 2-aminoisobutyronitrile, heating to 100-118 degrees C, stirring and mixing for 5-20 minutes, and cooling to 50-65 degrees C to obtain adhesive material; treating two sides of aluminum foil by corona treatment, dipping foil in graphene solution, carrying out electrochemical deposition process, taking out, and infrared drying to obtain graphene layer; extruding molten heat-sealing material, quickly coating on one face of graphene-containing layer of aluminum foil, shaping at 90-140 degrees C, and cooling to obtain heat-sealing layer; and coating other face and two sides of film of adhesive material with kraft paper, connecting with graphene-containing layer, adhering to aluminum foil, drying at 60 degrees C, and printing on film layer.