▎ 摘　　要

NOVELTY - Plastic film comprises 70-90 pts. wt. modified polyvinyl chloride resin, 0.5-2 pts. wt. anti-aging auxiliary agent, 0.5-2 pts. wt. cross-linking agent, 0.3-0.5 pts. wt. isopropyl tris(dioctyl pyrophosphate acyloxy), 15-20 pts. wt. reinforcing filler, and 8-12 pts. wt. composite flame retardant; the modified polyvinyl chloride resin comprises: AMS modifier and polyvinyl chloride resin, the mass ratio of the AMS modifier to the polyvinyl chloride resin is 2-5:10, the AMS modifier comprises methyl stearate and 1,3-propylenediamine. USE - The plastic film is useful for building, medical treatment, packaging, household appliance, and surface protective film of electronic device. ADVANTAGE - The plastic film: is environmentally friendly, and easy to handle; has excellent flame retardant property, anti-aging performance, excellent stability, and tensile strength. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing plastic film comprising (1) dissolving accurately measured modified polyvinyl chloride resin in tetrahydrofuran solution, mixing and stirring at 50-55°C for 30-35 minutes, adding anti-aging auxiliary agent, cross-linking agent, isopropyl tri(dioctyl pyrophosphate acyloxy), reinforcing filler, and composite flame retardant, insulating and keep stirring for 10-15 minutes to prepare the pre-finished product; and (2) performing rotary evaporation on the pre-finished product at 60-65°C for 10-12 hours to prepare a film coating, applying the film paint on the mold, coating amount is 20-22g/m2, and drying at 60-65°C for 12-14 hours.