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Waterproof plastic and wood composite material and preparation method thereof

A technology of wood-plastic composite material and wood powder, which is applied in the field of waterproof wood-plastic composite material and its preparation, and can solve the problems of deformation, affecting the performance of materials, and the surface of hollow drum.

Inactive Publication Date: 2016-12-07
芜湖昊轩环保新材料有限公司
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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 waterproof plastic-wood composite material and its preparation method, which solves the problem that ordinary plastic-wood composite materials have high hygroscopicity, and the material is easily deformed after absorbing water, and the interior is hollow or the surface is cracked, thereby affecting Material performance issues

Method used

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  • Waterproof plastic and wood composite material and preparation method thereof
  • Waterproof plastic and wood composite material and preparation method thereof

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preparation example Construction

[0013] The invention provides a method for preparing a waterproof plastic-wood composite material, wherein the preparation method includes: mixing polypropylene and low-density polyethylene, soaking in sodium hydroxide solution, and filtering for later use; Dry at 80-100°C for 10-30min and set aside; mix the treated polypropylene, low-density polyethylene, wood powder, wollastonite, azodicarbonamide, silane coupling agent KH550 and epoxy resin, The waterproof plastic-wood composite material is obtained after hot pressing and shaping.

[0014] In order to make the prepared wood-plastic composite material have better waterproof performance and further improve its mechanical strength, in a preferred embodiment of the present invention, relative to 100 parts by weight of polypropylene, the low-density polyethylene The consumption of said wood powder is 70-90 parts by weight, the consumption of said wood powder is 150-180 parts by weight, the consumption of said wollastonite is 10-...

Embodiment 1

[0022] 100g polypropylene and 75g low-density polyethylene are mixed and soaked in sodium hydroxide solution (concentration is 30% by weight), filtered and set aside; 160g wood powder is dried at 80°C for 10min, set aside; treated Polypropylene, low-density polyethylene, wood powder, 14g wollastonite, 4g azodicarbonamide, 8g silane coupling agent KH550 and 18g epoxy resin were mixed and hot-pressed (at a temperature of 120°C) to obtain a waterproof plastic. Wood composite A1.

Embodiment 2

[0024] 100g polypropylene and 85g low-density polyethylene are mixed and soaked in sodium hydroxide solution (concentration is 45% by weight), filtered and set aside; 170g wood flour is dried at 100°C for 30min, set aside; treated Polypropylene, low-density polyethylene, wood flour, 16g wollastonite, 6g azodicarbonamide, 10g silane coupling agent KH550 and 20g epoxy resin were mixed and hot-pressed (at a temperature of 130°C) to obtain a waterproof plastic. Wood composite A2.

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Abstract

The invention discloses a waterproof plastic and wood composite material and a preparation method thereof. The preparation method comprises the following steps of mixing polypropylene and low density polyethylene, soaking into a sodium hydroxide solution, and filtering for standby use; drying wood powder for 10-30min at the temperature of 80-100 DEG C for standby use; blending treated polypropylene, low density polyethylene, wood powder, wollastonite, azodicarbonamide, silane coupling agent KH550 and epoxy resin, pressing by heat, and forming, so as to obtain the waterproof plastic and wood composite material. The waterproof plastic and wood composite material can solve the problem of common plastic and wood composite material that the moisture absorbing property is higher, the deformation is caused after the material absorbs water, the internal void or surface cracking is caused, and the use property of material is further affected.

Description

technical field [0001] The invention relates to the field of plastic-wood materials, in particular to a waterproof plastic-wood composite material and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a new type of composite material that has been booming at home and abroad in recent years. It is mainly mixed with plastic and wood powder in a certain proportion and then formed by hot extrusion. It is mainly used in building materials, furniture, logistics packaging and other industries. Ordinary plastic-wood composite materials have high hygroscopicity. After the material absorbs water, it is easy to cause its deformation, internal hollowing or surface cracking, which will affect the performance of the material. [0003] Therefore, it is an urgent problem to be solved in the present invention to provide a waterproof plastic-wood composite material with strong water resistance and its preparation method. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/12C08L23/06C08L63/00C08K3/34C08K5/544C08K5/20
CPCC08L97/02C08L2205/02C08L2205/035C08L2205/16C08L2207/066C08L23/12C08L23/06C08L63/00C08K3/34C08K5/544C08K5/20
Inventor 翟彬
Owner 芜湖昊轩环保新材料有限公司
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