▎ 摘　　要

NOVELTY - Preparation of polyethylene foamed packaging film involves uniformly mixing polyethylene, acrylonitrile-butadiene-styrene copolymer, ethylene-propylene rubber, stearate, zinc borate, diisononyl phthalate, lecithin, maleic anhydride, asbestos and modified plant fibers, adding sodium bicarbonate and urea to the resultant mixture, heating, performing thermal decomposition process, obtaining foamed kneaded product, adding sulfur, graphene and calcium carbonate whiskers, mixing, and extrusion molding. USE - Preparation of polyethylene foamed packaging film (claimed). ADVANTAGE - The method provides polyethylene foamed packaging film having high toughness and excellent tear resistance. DETAILED DESCRIPTION - Preparation of polyethylene foamed packaging film involves uniformly mixing polyethylene, acrylonitrile-butadiene-styrene copolymer, ethylene-propylene rubber, stearate, zinc borate, diisononyl phthalate, lecithin, maleic anhydride, asbestos and modified plant fibers, adding sodium bicarbonate and urea to the resultant mixture, heating, performing thermal decomposition process, obtaining foamed kneaded product, adding sulfur, graphene and calcium carbonate whiskers, mixing, and extrusion molding. The modified plant fibers are prepared by immersing plant fiber powder, chitin and diatomite in alkali solution, filtering, washing the filter cake and drying.