▎ 摘　　要

NOVELTY - An antistatic modified thermoplastic polyurethane film comprises thermoplastic polyurethane elastomer, 20-25 %mass graphene powder and 0.5-1 %mass additive. USE - Antistatic modified thermoplastic polyurethane film. ADVANTAGE - The antistatic modified thermoplastic polyurethane film has high strength, and improved durability performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the antistatic modified thermoplastic polyurethane film, which involves (1) mixing 70-75 %mass thermoplastic polyurethane elastomer with graphene powder, dehumidifying and drying with a heat-free regeneration adsorption dryer to make the water content of 2 ppm or less, (2) mixing, extruding, and granulating the materials after the mixing and processing in step (1) through a twin-screw extruder to obtain graphene-modified thermoplastic polyurethane mixed particles, (3) mixing remaining amount of the thermoplastic polyurethane elastomer and the additive, dehumidifying and drying with a heat-free regeneration adsorption drying to make the water content less than 2 ppm, (4) feeding the dried mixture in step (3) into a blow molding machine, screw plasticizing, extrusion blow molding through die, cooling the inner and outer wind rings, cutting through rotary traction and side trimmer are and winding.