Bamboo-plastic composite material and preparation method and application thereof

Abstract

The invention discloses a bamboo-plastic composite material which comprises the following components in parts by weight: 20-60 parts of bamboo fiber, 30-70 parts of thermoplastic plastic, 0.5-2 parts of coupling, 1.5-5 parts of compatilizer, 0.5-2 parts of nucleating agent, 0.5-2 parts of lubricating agent and 2-5 parts of mixing aid. The invention discloses a preparation method of the bamboo-plastic composite material. On one hand, the bamboo-plastic composite material disclosed by the invention is light in weight and good in size stability, is better in mechanical property and strength compared with a wood-plastic composite material and can be applied to a material for internal walls and external walls; on the other hand, the bamboo-plastic composite material is good in surface smoothness and resistant to water, abrasion and chemical resistance and can be used as a building and ornament material, such as a bedding board; and the bamboo-plastic composite material is made of low-cost natural fiber, is environment-friendly and easy to degrade and is an environment-friendly novel material substituting for wood and plastic. The preparation method of the bamboo-plastic composite material is simple in process, easy to control and favorable in product stability.

Description

Technical field [0001] The invention relates to the technical field of polymer composite materials, and in particular to a bamboo-plastic composite material and its preparation method and application. Background technique [0002] With the advent of the era of environmental protection and economy, composite materials with low cost, good performance and certain environmental compatibility have increasingly broad market prospects. In recent years, the advantages of natural plant fibers as reinforcing materials have attracted more and more public attention. Because it not only has the advantages of rich resources, low price, smaller density than other inorganic fibers, and similar modulus and tensile strength to inorganic fibers, it also has the characteristics of being repeatedly processed, not easy to absorb water and moisture, and biodegradable. my country is rich in bamboo resources and is known as the "Kingdom of Bamboo". Bamboo fiber, as a type of plant fiber, has its ow...

AI Technical Summary

Problems solved by technology

[0005] However, the compounding of bamboo fiber and plastic still faces many technical problems, such as bamboo fiber is highly polar and has good hydrophilicity, while plastic is non-polar and has strong hydrophobicity, resulting in poor compatibility between bamboo fiber and plastic. The interface adhesion is small, which affects the composite performance of bamboo-plastic composites

In addition, the complexity of the composition of bamboo fiber itself also determines the difficulty of forming and processing bamboo-plastic composite materials. For example, as the proportion of bamboo fiber increases, the processing fluidity and mechanical properties will decrease, and products with complex shapes cannot be produced.

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