▎ 摘　　要

NOVELTY - A dirt-resistant and antibacterial material comprises 90-130 pts. wt. base material, 1-5 pts. wt. crosslinking agent, 20-30 pts. wt. white oil, 10-25 pts. wt. plasticizer, 4-8 pts. wt. wetting agent, 10-20 pts. wt. auxiliary agent, 5-20 pts. wt. carbon material and 1-5 pts. wt. nano-silver. USE - The dirt-resistant and antibacterial material is used for outdoor toys. ADVANTAGE - The material for outdoor toys has good dirt resistance and antibacterial properties, enhances the pore size uniformity of toy foam materials, is suitable for promotion in the application of toys, and has broad development prospects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the dirt-resistant and antibacterial material comprising (S1) mixing the raw materials into the mixer, stirring at 150-180℃ and 200-400 rpm for 1-3 hours, taking it out and putting it into the internal mixer, (S2) mixing the raw materials in the internal mixer at 160-190℃ for 15-20 minutes, extruding and granulating, (S3) molding the particles by hot-melt molding, after molding, putting them into an autoclave, soaking in distilled water, raising the temperature to 140-180℃, increase the pressure to 15-20 MPa, and injecting carbon dioxide foaming agent until the substrate is saturated with adsorption, and (S4) taking out the base material, raising the temperature to 150-160℃, keeping it warm and foaming.