PVC flame-retardant floor film and preparation method thereof

The invention relates to the technical field of high polymer materials, in particular to a PVC flame-retardant floor film and a preparation method thereof. The PVC flame-retardant floor film is prepared from the following raw materials in parts by weight: 45 to 55 parts of polyvinyl chloride, 28 to 35 parts of internal plasticized polyvinyl chloride, 10 to 12 parts of acrylate modified polyvinyl chloride, 5 to 7 parts of auxiliary plasticizer, 1 to 2 parts of stabilizer and 0.02 to 0.05 part of organic peroxide. In the application, firstly, by introducing the internal plasticized polyvinyl chloride, the problem of mobility is effectively solved, and meanwhile, the excellent flame retardant property is effectively ensured; and secondly, an auxiliary plasticizer is cooperatively introduced, so that internal and external double plasticization is effectively generated, and the tensile property of the PVC flame-retardant floor film is effectively improved. And thirdly, acrylic ester modified polyvinyl chloride is