Straw, rice hull fibre base wood-plastic composite material and manufacture method thereof

Abstract

The invention relates to a wood plastic composite material and a preparation method thereof, in particular to a straw, a rice husk fiber base wood plastic composite material and a preparation thereof. The straw and the rice husk fiber base wood plastic composite material comprise the following components according to weight percentage: melamine resin: 3.5 percent; the straw and the rice husk fiber or the mixture of the straw and the rice husk: 60 percent; polyethylene with low density: 32 percent; solubilizer: 2 percent and lubricant: 2.5 percent. The wood plastic composite type building material of the invention adopts high technology, and utilizes waste plastics and a large amount of straw (rice straw, rice husk) powder to mix and extrude various formed hollow sectional materials of wood plastic at high temperature by fiber strengthening, and the wood plastic composite material is a typical environmental-friendly material. The wood plastic composite material is characterized by sun block, waterproof, anti-moth, anti-freezing and anticorrosion, and the wood plastic composite material without formaldehyde is strong in wood sense, high in surface hardness, strong in wear resistance, good in antiaging, long in service life, easy in processing, is suitable for the preferable material of decoration indoors and outdoors, and is similar to wood in shape but better than wood in property.

Description

technical field [0001] The invention relates to a wood-plastic composite material and a preparation method thereof, in particular to a straw and rice husk fiber-based wood-plastic composite material and a preparation method thereof. Background technique [0002] With the development of the global economy, on the one hand, a large number of various plastic products are used, and waste plastic waste is spread all over the world, which has caused great pollution to the living environment of human beings; on the other hand, a large number of forests have been cut down, causing soil erosion and destruction of the ecological environment. How to solve white pollution and save forest resources is a big issue before people. The wood fiber or plant fiber is filled with recycled plastic, extruded, pressed or injection molded by a special machine, and the products made can replace wood products, which not only solves the problem of white pollution, but also saves forest resources and i...

AI Technical Summary

Problems solved by technology

[0007] Since the surface of rice straw and rice husk fiber has a hydroxyl structure, it is a polar hydrophilic substance, while plastic is a non-hydrophilic substance, and the affinity between the two is extremely poor. If the two are simply blended, the surface of the product will be rough and mechanically The performance is very poor. Even if maleic anhydride grafting material is used as the solubilizer, the effect has been poor. The key is the difference in the interface between wood and plastic. In order to solve the problem of the interface dissolution and bonding between wood and plastic, it is necessary Add reinforcing agent to the shell fiber, modify it, enhance the effective dissolution and bonding of the two interfaces of wood and plastic, and process wood-plastic composite profiles with high wood fiber content

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