Aramid fiber enhanced wood-plastic composite material and preparation method thereof

Abstract

The invention relates to aramid fiber enhanced wood-plastic composite material and a preparation method thereof, relating to fiber enhanced wood-plastic composite material and the preparation method thereof. The invention solves the problem that the existing wood-plastic composite material has bad comprehensive mechanical property. The wood-plastic composite material comprises thermoplastic, wood fiber material, lubricant, bulking agent and graft modification aramid fiber. The preparation method of the invention is as follows: 1. weighing raw materials; 2. preparing premixing materials; 3. melting, extruding and molding the premixing materials to obtain the fiber enhanced wood-plastic composite material. The preparation method utilizes carbon-carbon double bond and silane alkyl on the surface of modified aramid fiber and polyolefin and wood flour to form chemical bonds so that aramid fiber and polyolefin has good compatibility, and effectively enhances the interface binding force of the composite materials; the aramid fiber enhanced wood-plastic composite material simultaneously has high strength, high tenacity, and good comprehensive mechanical property. The method can be used for producing the wood-plastic composite material with high performances such as structural engineering materials, etc.

Description

technical field [0001] The invention relates to a fiber-reinforced wood-plastic composite material and a preparation method thereof. Background technique [0002] Wood-plastic composites (WPC) can use waste wood fiber materials and waste plastics as the main raw materials. They are environmentally friendly and recyclable. They have become an important way to solve the problem of efficient utilization of natural and synthetic polymer waste resources and have attracted much attention. Due to the addition of plastic in wood-plastic composite materials, the surface hardness, dimensional stability, water resistance, and corrosion resistance of wood are increased, and generally no surface coating is required, which meets the needs of future economic development, and its future is immeasurable. It is precisely because of the many advantages of wood-plastic composite materials that its market is growing rapidly, especially in construction and automotive applications. On the other h...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor comprehensive mechanical properties of existing wood-plastic composite materials, and provide aramid fiber reinforced wood-plastic composite materials and its preparation method