Multifunctional wood-plastic composite material and preparation method thereof

Abstract

The invention provides a multifunctional wood-plastic composite material. The multifunctional wood-plastic composite material comprises the following raw materials and components in parts by weight: 60 to 65 parts of polyvinyl chloride, 18 to 20 parts of chlorinated polyethylene, 60 to 65 parts of wood powder, 10 to 12 parts of calcite powder, 10 to 12 parts of diatomite, 10 to 12 parts of shell powder, 8 to 10 parts of jade powder, 5 to 7 parts of mica powder, 5 to 7 parts of talcum powder, 4 to 6 parts of tricresyl phosphate, 3 to 5 parts of magnesium hydrate, 3 to 5 parts of zinc oxide, 2 to 4 parts of oxidized polyethlene wax, 1.5 to 2 parts of tourmaline powder, 2 to 3 parts of pine needle meal, 1.5 to 2 parts of naringenin, 1.5 to 2 parts of thyme, 1 to 1.5 parts of tamarind fruit shell, 2 to 3 parts of callicarpa nudiflora, 1.5 to 2 parts of Chinese ilex leaves, 1 to 1.5 parts of schizonepeta, 0.3 to 0.5 part of a coupling agent, 4 to 6 parts of a stabilizer, 2.5 to 4 parts of acompatilizer, 0.5 to 1 part of an ultraviolet light absorber and 1 to 2 parts of antioxidant. The wood-plastic composite material provided by the invention is excellent in comprehensive performance,antibacterial and sterilization performance and anti-mold property.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a multifunctional wood-plastic composite material 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 anti-corrosion and ...

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, thermoplastics and wood fibers are hydrocarbons, which can be burned when exposed to open flames or heated. Plastic materials are prone to aging due to environmental influences, which greatly limits their applications.

[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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