Aging-resistant anti-bacterial wood plastic composite board and preparation method thereof

Abstract

The invention provides an aging-resistant anti-bacterial wood plastic composite board. The aging-resistant anti-bacterial wood plastic composite board comprises the following raw materials in parts byweight: 80-90 parts of polyvinyl chloride, 60-65 parts of wood powder, 15-18 parts of ramie fiber, 15-17 parts of calcite powder, 8-10 parts of talcum powder, 5-8 parts of diatomite, 5-8 parts of shell powder, 1-2 parts of hokutolite powder, 0.1-0.5 parts of titanium dioxide, 2-3 parts of pine-needle powder, 1.5-2 parts of naringenin, 1-1.5 parts of cedronella, 2-2.5 parts of apple eucalyptus leaves, 0.5-1 part of corymbia citriodora leaves, 2-3 parts of callicarpa nudiflora, 1.5-2 parts of leaf of chinese ilex, 0.3-0.5 parts of a coupling agent, 4-6 parts of a stabilizing agent, 2-3 parts ofoxidized polyethlene wax, 1.5-3 parts of an anti-oxidant, and 0.5-1 part of an ultraviolet ray absorber. The wood plastic composite board has excellent mechanical properties, aging-resistant performance, antibiosis and mildew-resistant performance, and is an interior decoration material having excellent comprehensive properties.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to an aging-resistant and antibacterial wood-plastic composite board and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a composite profile mainly made of wood or cellulose as the base material and plastic. Wood-plastic composite material has the advantages of woody feeling of solid wood material and weather resistance and microbial resistance of plastic matrix. And during use, it will not emit gases that are harmful to human health, that is, it will not pollute the environment, and the material itself can be reused. It is a brand-new green product and an ecologically clean composite material. [0003] At present, wood-plastic composite materials have begun to replace solid wood and are widely used in various fields, most commonly used in the field of building decoration, and wood materials for construction need to have excellent ant...

AI Technical Summary

Problems solved by technology

Although wood fibers in wood-plastic composites are coated in a plastic matrix, they have better anti-microbial degradation ability than natural wood, but due to the large difference in surface polarity between wood fibers and plastics, even if added in composite processing Without a compatibilizer, there are still a large number of pores on the two-phase interface inside the material, and the pores are usually interconnected. Wood fibers absorb water through these pores and will be contaminated by microorganisms and then degraded by microorganisms. Microorganisms will reproduce inside the material. , eventually leading to structural damage to the material, corroded

At the same time, the plastic matrix is ​​also easily affected by the environment, and there is a problem that it is prone to aging.

[0004] In addition, with the development of society, people's demand for multifunctional materials is increasing, and most of the existing wood-plastic composite materials have single functions and only have simple decorative effects, which can no longer meet people's requirements.

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