High-tenacity sound-absorption and mildew-proof wood-plastic board and preparation method thereof

Abstract

The invention discloses a high-tenacity sound-absorption and mildew-proof wood-plastic board. The wood-plastic board is prepared from the following raw materials in parts by weight: 21 parts of wasteplastic, 26 parts of waste wood flour, 26 parts of polystyrene, 3 parts of attapulgite, 3 parts of bamboo charcoal powder, 6 parts of hollow glass beads, 3 parts of potassium titanate whisker, 8 partsof maleic anhydride and 1 part of sodium stearate. The preparation method comprises the steps of modifying an oxidized surface of waste wood flour by virtue of the effects of peracetic acid and ultrasonic waves without a polluted coupling agent, carrying grafting modification and compounding on the waste wood flour, maleic anhydride, waste plastic and polystyrene, adding the hollow glass beads and the potassium titanate whisker, carrying out primary mixing so as to realize sound absorption, noise reduction and tenacity enhancement, adding attapulgite, the bamboo charcoal powder and sodium stearate, carrying out secondary mixing so as to realize a filling effect and the stability and mildew-proof effect of the material, finally, carrying out extrusion compression molding by virtue of a screw rod, and cooling, so as to obtain the required high-tenacity sound-absorption and mildew-proof wood-plastic board. The wood-plastic board has relatively strong mechanical property and tenacity andsound absorption, noise reduction and mildew-proof effects and is low in cost.

Description

technical field [0001] The invention relates to the technical field of wood-plastic composite materials, in particular to a high-toughness sound-absorbing and mildew-proof wood-plastic board and a preparation method thereof. Background technique [0002] With the rapid development of the plastics industry, there are more and more applications of plastic products, which have penetrated into various fields of the national economy and people's daily life. However, in view of its unique nature, stable and difficult to degrade, the accumulation of waste after use has seriously affected the environment around the people, which is called "white pollution". Wood-plastic composite material is a new type of material made by mixing biomass fibers with plastics and other additives through extrusion or compression molding. Wood-plastic composites combine the advantages of wood and plastic, recycle waste resources well, reduce the use of wood, and alleviate the shortage of wood supply to...

AI Technical Summary

Problems solved by technology

[0003] Traditional wood-plastic panels have defects such as low mechanical strength, poor toughness, poor sound insulation effect, and weak bonding between plastic and wood, resulting in a very narrow range of applications for products made of it.

However, in order to improve this problem, researchers try to use coupling agents to solve the binding force between plastics and wood. However, due to the pollution of coupling agents, it is easy to cause harm to the human body for interior decoration, so there is an urgent need for a Non-polluting substitutes combined with other high-toughness, sound-absorbing and mildew-proof modified materials to improve the comprehensive performance of the composite material