Anti-bacterial wood-plastic composite section material and preparation method thereof

Abstract

The invention belongs to the technical field of building materials, and particularly relates to an anti-bacterial wood-plastic composite section material and a preparation method thereof. The anti-bacterial wood-plastic composite section material is prepared from raw materials as follows: cornstalk powder, polypropylene, walnut shell flour, trichloro-sym-diphenylurea, 2-diethylaminopyridine, copper 8-hydroxyquinoline, glycerol dimethacrylate, diethylene glycol dibenzoate, cresyl diphenyl phosphate, divinyl tetramethyl disiloxane, 3-isocyanatopropyltriethoxysilane, 1,3-dimethyl-6-aminouracil, H-imidazole-1-carboxaldehyde, isothiazolone and dialkyl diphenylamine. The invention further provides a preparation method of the anti-bacterial wood-plastic composite section material. The anti-bacterial wood-plastic composite section material has good and long-lasting antibacterial performance, excellent mechanical properties, quite good corrosion resistance and heat resistance, high strength and good toughness, is bending-resistant, anti-stretching, formaldehyde-free, corrosion-resistant, humidity-resistant and durable, and has good impact strength, high integrated quality and good processability, and the preparation process is simple.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an antibacterial wood-plastic composite profile and a preparation method thereof. Background technique [0002] Wood-plastic composites are composite materials of wood fibers and thermosetting or thermoplastic polymers. The blend of the two materials weakens their original performance deficiencies. Compared with wood, wood-plastic composite products are not easy to absorb water, are easier to design and require less maintenance, etc. Compared with plastic, wood-plastic composite materials are harder, cheaper, lighter and less thermally deformed. On the other hand, however, the composite of the two materials also brings new defects to the final material. Compared to wood, wood-plastic composites have a lower Young's modulus, higher density and are more expensive. Wood-plastic composite is an anisotropic material that is more brittle, more prone to discolo...

AI Technical Summary

Problems solved by technology

Even if the high-temperature-resistant antibacterial and anti-fungal agent can maintain the anti-bacterial and anti-mildew function well during the processing process, the small molecule anti-bacterial and anti-fungal agent will gradually migrate to the surface of the wood-plastic composite material during the use of the wood-plastic composite material, and continue to If it is washed away by rainwater, the antibacterial and antiseptic effect will gradually disappear

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