| abstract |
The invention discloses a self-cleaning film structure and a preparation method thereof, belonging to the field of building film materials, and the self-cleaning film structure comprises a high-strength polyester fabric core layer, a reinforcing layer, a PVC functional layer and a self-cleaning layer; the PVC functional layer comprises a creep resistant layer and an aging resistant layer; the reinforcing layer is prepared from the following raw materials in parts by weight: 100 parts of polyvinyl chloride paste resin, 5-15 parts of polystyrene resin, 140 parts of DOP (dioctyl phthalate), 2-8 parts of liquid rare earth stabilizer, 2-6 parts of liquid isocyanate crosslinking agent, 6-15 parts of flame retardant, 1-5 parts of octylphenol polyoxyethylene ether and 5-15 parts of OS-20 diluent; the material has the effects of good creep resistance, good mechanical property and long service life; the preparation method comprises the following steps: preparing raw materials; preparing a film layer: sequentially forming a creep layer and an aging resistant layer of the reinforcing layer and then plasticizing; embossing; forming a self-cleaning layer by surface treatment; embossing; cooling to obtain the product, which has the effects of good tearing resistance and tensile resistance of the product and high peel strength of the film material. |