▎ 摘　　要

NOVELTY - Polyethylene terephthalate modified engineering plastics based on graphene oxide talcum powder composite filler comprises 94.1-96.1 wt.% polyethylene terephthalate primer, 0.3-0.7 wt.% graphene oxide-talc composite filler, 3-5 wt.% toughening agent comprising an organic copolymer without carbon-carbon double bonds, and 0.2-0.4 wt.% antioxidant. USE - Polyethylene terephthalate modified engineering plastics based on graphene oxide talcum powder composite filler. ADVANTAGE - The plastics effectively ensures that graphite improves the thermal stability and antistatic properties of polyethylene terephthalate, and enhances the notched impact strength of polyethylene terephthalate, and has high toughness, excellent electrical conductivity and excellent thermal stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the modified engineering plastics, involving (a) drying the polyethylene terephthalate primer at 110-120℃ for 4-5 hours, drying the graphene oxide-talc composite filler at 100-110℃ for 4-5 hours, evenly mixing and stirring with toughening agent and antioxidant to obtain a mixture, and (b) melting and extruding the mixture in a twin-screw extruder, and granulating to obtain the plastics.