High-strength wood-plastic composite material and preparation method thereof

Abstract

The invention discloses a high-strength wood-plastic composite material and a preparation method thereof. The high-strength wood-plastic composite material comprises a wood-plastic composite carrier layer and a wear-resistant anti-aging surface layer arranged on the wood-plastic composite carrier layer, wherein the wood-plastic composite carrier layer is prepared from the following components in parts by mass: 80 to 100 parts of first polyolefin resin, 40 to 60 parts of plant fiber material, 5 to 8 parts of nano silicon dioxide powder, 5 to 8 parts of superfine nano ceramic powder, 0.8 to 2.5parts of first anti-ultraviolet agent, 1 to 2.5 parts of first coupling agent and 1 to 2.5 parts of lubricating agent; the wear-resistant and anti-aging surface layer is prepared from the following components in parts by mass: 80 to 100 parts of second polyolefin resin, 2.5 to 8 parts of powdered carbon fiber, 1.5 to 2.5 parts of silicone oil, 0.8 to 2.5 parts of second anti-ultraviolet agent and1 to 2 parts of second coupling agent. The formula of the wood-plastic composite carrier layer is optimized, so that the wood-plastic composite carrier layer has good strength and aging resistance, and thereby the wear resistance, strength and aging resistance of the wood-plastic composite material are improved by arranging the wear-resistant and aging-resistant surface layer.

Description

technical field [0001] The present invention relates to the technical field of wood-plastic composite materials, more specifically, to a high-strength wood-plastic composite material and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a new type of composite material that has been booming at home and abroad in recent years. It refers to the use of polyethylene, polypropylene and polyvinyl chloride instead of the usual resin adhesive, and more than 35% -70% of wood powder and rice husk. , Straw and other waste plant fibers are mixed into new wood materials, and then processed by extrusion, molding, injection molding and other plastic processing techniques to produce boards or profiles. Mainly used in building materials, furniture, logistics packaging and other industries. With the research and development of wood-plastic composite materials, the plastic raw materials for producing wood-plastic composite materials include polyvin...

AI Technical Summary

Problems solved by technology

As a new type of composite material, wood-plastic composite materials have the advantages of long service life, strong acid and alkali resistance, water resistance, and corrosion resistance. However, they also have problems with unsatisfactory mechanical properties such as strength and wear resistance.

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