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Soundproof wood-plastic composite material and preparation method thereof

A technology of wood-plastic composite materials and wood fiber materials, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc. The effect of sound performance improvement

Inactive Publication Date: 2016-11-16
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sound-insulating wood-plastic composite material and its preparation method in order to solve the problem that the existing wood-plastic composite material is not sound-proof

Method used

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  • Soundproof wood-plastic composite material and preparation method thereof

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specific Embodiment approach 1

[0013] Embodiment 1: In this embodiment, a sound-insulating wood-plastic composite material includes a core wood-plastic layer and surface wood veneer layers on both sides.

[0014] The sound-insulating wood-plastic composite material provided by this embodiment not only has good sound-insulating performance, but also has good thermal insulation, wooden decorative appearance, light weight and environmental protection.

specific Embodiment approach 2

[0015] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the core wood-plastic layer is composed of 30-50 parts by weight of thermoplastics, 50-80 parts of wood fiber materials, 1-5 parts Wood-plastic composite board made of coupling agent, 3-6 parts of lubricant and 0-10 parts of hollow glass microspheres. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0016] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the core wood-plastic layer consists of 40 parts by weight of thermoplastics, 60 parts of wood fiber materials, and 5 parts of coupling agent and 2 parts lubricant. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a soundproof wood-plastic composite material and a preparation method thereof and aims to solve the problem of lack of a soundproof function of existing soundproof wood-plastic composite materials. The soundproof wood-plastic composite material comprises a core wood-plastic layer and surface wood veneer layers on two sides. The preparation method includes: firstly, granulation; secondly, preparation of microsphere wood-plastic composite plates; thirdly, preparation of the soundproof wood-plastic composite material. The soundproof performance of the soundproof wood-plastic composite material prepared according to the method is improved greatly under each frequency band, sound reduction index reaches 39.659dB maximally when 10 parts of hollow glass microspheres are added, and accordingly the soundproof performance of the material is effectively improved. The soundproof wood-plastic composite material is applied to the field of wood-plastic composite materials.

Description

technical field [0001] The invention relates to a sound-insulating wood-plastic composite material and a preparation method thereof. Background technique [0002] Wood-plastic composite (WPC) is a new type of composite material that has risen rapidly at home and abroad in recent years. , straw and other plant fibers and additives are mixed, and then processed into boards or profiles by extrusion, molding, injection molding and other molding processes. It has the advantages of easy processing, high strength, good durability, water resistance, corrosion resistance, not easy to be eaten by insects, wide source of raw materials, and low price. All in all, wood-plastic composite materials have the characteristics of universality of raw materials, product plasticity, environmental protection, cost economy and recyclability. In today's increasingly tense forest resources, it is regarded as an excellent wood substitute and a resource. Saving and environment-friendly materials. ...

Claims

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Application Information

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IPC IPC(8): B32B21/08B32B27/18B32B27/20C08L97/02C08L23/06C08L51/06C08K7/28
CPCB32B21/08B32B27/18B32B27/20B32B2250/40B32B2307/102B32B2307/304C08L97/02C08L2205/025C08L2205/035C08L23/06C08L51/06C08K7/28
Inventor 王伟宏姜秀梅王海刚
Owner NORTHEAST FORESTRY UNIVERSITY
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