▎ 摘　　要

NOVELTY - Method for preparing medical ethylene tetrafluoroethylene film, involves (a) adding ethylene tetrafluoroethylene raw materials, functional additives, graphene, nucleating agents, antibacterial agents and antioxidants to a high-speed mixer to mix evenly, (b) mixing the above-mentioned materials into a screw extruder, heating at 210-280degrees Celsius, melt-extruding to made into pellets, (c) adding the pellets to a hollow blow molding machine or a casting machine, melting, extruding to form a film of a specified thickness, cooling the formed film by a cooling roller at 90-100degrees Celsius, and vacuum drying, and (d) detecting, cooling, rewinding and re-detecting to obtain the film. USE - The method is useful for preparing medical ethylene tetrafluoroethylene film used for providing antibacterial properties against Staphylococcus aureus and Escherichia coli. ADVANTAGE - The method improves the transparency of the film, and the prepared film has excellent antibacterial effect, and high transparency, and prevents bacterial penetration.