Anti-bacterial and mould-proof wood-plastic composite

The invention discloses anti-bacterial and mould-proof wood-plastic composite. The composite comprises components in parts by weight as follows: 10-20 parts of hollow microspheres, 3-8 parts of a powdery inorganic antibacterial agent, 10-40 parts of a plastic recycling material, 1-2 parts of maleic anhydride, 1-2 parts of light calcium carbonate, 0.5-3.5 parts of polyethylene wax, 0.5-1.5 parts of stearic acid, 10-30 parts of wood flour, 20-40 parts of a plant fiber material and 0.5-1.5 parts of a dispersion compatilizer. The hollow microspheres obtained after calcination of coal ash as well as the inorganic antibacterial agent is added to the raw materials, the antibacterial and mould-proof performance of the composite is remarkably improved, the composite has good antibacterial performance especially for common staphylococcus aureus and escherichia coli, besides, the water absorption rate of the wood-plastic composite is remarkably reduced, the waterproof performance is substantially improved, and the prepared wood-plastic composite has good physical performance such as high mechanical strength, elasticity modulus, water resistance, heat resistance and the like. The composite is suitable for being used as a raw material for outdoor building rails, wood-plastic bottom plates, furniture and the like and especially a product raw material with higher requirements for mould-proof and algae-proof performance and cleanness.