Environment-friendly high-performance wood-plastic composite material

Abstract

Relating to the technical field of wood-plastic composite materials, the invention discloses an environment-friendly high-performance wood-plastic composite material. The environment-friendly high-performance wood-plastic composite material is composed of the following raw materials by weight: 150 parts of a powdery recycled plastic, 130 parts of surface modified wood fiber, 10 parts of bentonite, 1-2 parts of a mildewproof additive, 20 parts of a wear-resistant additive, 22 parts of a charring agent, 4 parts of an antioxidant, 4 parts of a light stabilizer, 8 parts of a bonding assistant, and 3 parts of toner. A quaternary ammonium salt active antibacterial monomer is connected to wood fiber particle surfaces through a chemical bond, during processing, the antibacterial monomer has better stability, and reduces the antibacterial monomer decomposition to a maximum extent, so that the wood-plastic composite material has better antibacterial properties; by adding the bonding assistant and the like, the weather resistance, compression and tensile resistance of the wood-plastic composite material itself are improved, and with high mechanical strength, strong dimensional stability, good high-and-low temperature resistance, and strong solarization resistance, the wood-plastic composite material provided by the invention can be used for outdoor building materials.

Description

technical field [0001] The invention relates to an environment-friendly high-performance wood-plastic composite material, which belongs to the technical field of wood-plastic composite materials. Background technique [0002] Combining the advantages of both wood and plastic, wood-plastic composites have good processability, high mechanical strength, water resistance and corrosion resistance, and have been widely used in the construction industry, automobile industry and other fields. [0003] Wood-plastic composite material is a new type of composite engineering material made of wood fiber and plastic as the main raw materials. As a wood-plastic composite material, it has excellent water resistance and corrosion resistance, insect resistance, good dimensional stability, flexible production process, and little damage to equipment. It can also be made from recycled waste wood and plastic, and can be recycled. It has attracted people's attention due to its advantages. [000...

AI Technical Summary

Problems solved by technology

[0004] The current production process of polymer composite wood-plastic materials only pays attention to the mixing or reuse of several materials, and the improvement of basic mechanical properties, without fully considering the compatibility and interface bonding of various materials, interface bonding ability and various Diffusion and penetration of materials at the interface cannot ensure that wood fibers can be fully dispersed in polymer plastics. The wood / plastic interface interaction is poor, the affinity between the two is low, and the bonding strength is low. Low performance and other usability

The addition of wood powder in wood-plastic composite materials is low, and the mechanical properties and toughness of the material are poor. In addition, most of the existing composite wood-plastic materials improve the antibacterial performance of wood-plastic composite materials by adding antibacterial preservatives. The processing temperature of composite materials is as high as more than 200 degrees. Generally, antibacterial preservatives will decompose during this process, thus losing the antibacterial effect. How to improve the antibacterial and anticorrosive functions of wood-plastic composite materials has become an urgent problem to be solved.