Antibacterial polypropylene material special for washing machine and preparation method thereof

The invention relates to antibacterial polypropylene resin special for a washing machine and a preparation method thereof. The material is composed of the following components in parts by mass: 100 parts of polypropylene; 0.1-3 parts of an antioxidant; 0.1-3 parts of a nucleating agent; 0.1-2 parts of antibacterial agent. The preparation method comprises the following steps: uniformly mixing polypropylene powder, an antioxidant, a nucleating agent and an antibacterial agent by virtue of a high-speed mixer, and extruding and granulating by virtue of a double-screw extruder; the antibacterial agent used in the invention is an inorganic zinc oxide antibacterial agent, the polypropylene resin has permanent broad-spectrum antibacterial and mildew-proof effects by physically interfering microbial gene replication information expression, the operation is simple and convenient, the use amount is less, the cost is low, and the product can meet the performance requirements of special materials for washing machines. 本发明