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

A high-toughness, wood-plastic board technology, used in manufacturing tools, wood treatment, impregnating wood, etc., can solve the problems of poor sound insulation, coupling agent pollution, human harm in interior decoration, etc., and achieve low cost and strong mechanical properties. and the effect of resilience, high added value and practical value

Inactive Publication Date: 2019-01-11
FOSHAN JUYE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-toughness sound-absorbing and mildew-proof wood-plastic board is prepared from the following raw materials in parts by weight:

[0022] Waste plastic 21, waste wood chips 26, polystyrene 26, attapulgite 3, bamboo charcoal powder 3, hollow glass microspheres 6, potassium titanate whiskers 3, maleic anhydride 8, sodium stearate 1.

[0023] A method for preparing a high-toughness sound-absorbing and mildew-proof wood-plastic board, comprising the following steps:

[0024] (1) Soak the waste sawdust in 15%-20% peracetic acid for 1-3h, put it in ultrasonic treatment for 10-15min, take it out, dry and grind it to 20-30 mesh at 70-80℃ for surface modification Waste sawdust powder, spare;

[0025] (2) Put waste plastics and polystyrene in a high-speed mixing mixer and mix them uniformly once. The first mixing temperature is 92°C, the stirring speed is 256r / min, and the time is 12min. Add maleic anhydride and step (1) After the surface-modified waste sawdust powder is m...

Embodiment 2

[0030] A high-toughness sound-absorbing and mildew-proof wood-plastic board is prepared from the following raw materials in parts by weight:

[0031] Waste plastic 25, waste sawdust 22, polystyrene 24, attapulgite 5, bamboo charcoal powder 6, hollow glass microsphere 7, potassium titanate whisker 4, maleic anhydride 10, sodium stearate 3.

[0032] A method for preparing a high-toughness sound-absorbing and mildew-proof wood-plastic board, comprising the following steps:

[0033] (1) Soak the waste sawdust in 15%-20% peracetic acid for 1-3h, put it in ultrasonic treatment for 10-15min, take it out, dry and grind it to 20-30 mesh at 70-80℃ for surface modification Waste sawdust powder, spare;

[0034] (2) Put waste plastics and polystyrene in a high-speed mixing mixer and mix them uniformly once. The first mixing temperature is 92°C, the stirring speed is 256r / min, and the time is 12min. Add maleic anhydride and step (1) After the surface-modified waste sawdust powder is mixed...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L25/06C08L101/00C08K13/04C08K7/08C08K3/04C08K3/34C08K5/098C08K7/28B27K3/34B27K5/00B27L11/06
CPCC08L97/02B27K3/34B27K5/0065B27L11/06C08L25/06C08L101/00C08K13/04C08K7/08C08K3/04C08K3/346C08K5/098C08K7/28
Inventor 戴炬枫
Owner FOSHAN JUYE TECH CO LTD
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