High-weatherability PVC (polyvinyl chloride) wood-plastic composite material

Abstract

The invention discloses a high-weatherability PVC (polyvinyl chloride) wood-plastic composite material, prepared with, by weight, 30 to 40 parts of wood powder, 10 to 20 parts of butyl acrylate, 0.02 to 0.03 part of benzoyl peroxide, 0.01 to 0.02 part of N, N-dimethylaniline, 3 to 4 parts of polyethylene wax, 1 to 1.2 parts of dilauryl thiodipropionate, 1.5 to 2 parts of calcium stearate, 95 to 100 parts of polyvinyl chloride, 2 to 3 parts of AC foamer, 1 to 2 parts of cell regulator ACR530, 6 to 8 parts of chlorinated polyethylene, 0.4 to 0.6 parts of epoxy linseed oil, 3 to 4 parts of fly ash, 2 to 3 parts of clay, and 0.1 to 0.3 part of silane coupling agent kh570. The high-weatherability PVC wood-plastic composite material is good in appearance, good in visual effect, high in wood powder filling quantity, easy to evenly disperse, solid in mass, good in comprehensive property, excellent in weatherability, environment friendly and pollution free, and evidently advantageous in terms of cost performance.

Description

technical field [0001] The invention relates to the technical field of wood-plastic materials, in particular to a PVC wood-plastic composite material with high weather resistance. Background technique [0002] my country is a country that is not rich in timber, and the insufficient production cannot meet the demand of the market. With the enhancement of environmental protection awareness and the protection of trees, wood-plastic composite materials have gradually entered people's field of vision. Wood-plastic materials are thermoplastic polymer composite materials filled with wood powder, wood fiber or other plant fibers. Advantages of plastic. According to the type of thermoplastic used, it can be divided into PVC foamed wood plastic, ABS foamed wood plastic, PS foamed wood plastic, PE wood plastic, PP wood plastic, etc. Wood plastic materials are environmentally friendly, high molding efficiency, waterproof, With the advantages of good weather resistance and environmenta...

AI Technical Summary

Problems solved by technology

Although wood-plastic composites have good application prospects, their applications are limited due to their brittleness, low impact properties, and high density compared to natural wood.

In the wood-plastic material formula, adding a foaming agent can prepare foamed wood-plastic products with cells. In addition to the characteristics of traditional wood-plastic products, foamed wood-plastic products also have good properties such as light weight, heat insulation, and noise reduction. However, if the foaming agent is directly added to the wood-plastic formula for foam molding, the wood-plastic products will often have problems such as uneven cell size and unstable production process due to uneven dispersion of the foaming agent, which will greatly affect the quality of the product. application performance