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Plastic-wood composite material with low linear thermal expansion coefficient and preparation method thereof

A technology of plastic-wood composite material and thermal expansion coefficient, which is applied in the field of plastic-wood composite material with low linear thermal expansion coefficient, can solve the problems of affecting appearance and use effect, high thermal expansion coefficient, and achieve the effect of enhancing strength, high strength and reducing usage

Inactive Publication Date: 2018-11-16
HUANGSHAN MEISEN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to provide a wood-plastic composite material with a low linear thermal expansion coefficient to solve the problem in the prior art that the wood-plastic composite material has a high thermal expansion coefficient and affect its appearance and use effect;

Method used

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  • Plastic-wood composite material with low linear thermal expansion coefficient and preparation method thereof
  • Plastic-wood composite material with low linear thermal expansion coefficient and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 Preparation of modified wood flour

[0032] The modified wood flour described in this example is obtained by modifying wood flour with a phenolic resin adhesive. The specific preparation steps include: according to the mass ratio of 0.05:1, commercially available Dissolve phenolic resin adhesive and wood powder with a particle size of 0.5-1.5mm in water and mix well, and heat up to 50-60°C for a full mixing reaction for 1-3 hours. After the reaction, the solvent water is removed under reduced pressure, and then Put it into an oven and dry it at 70-90°C to get the desired modified wood powder.

Embodiment 2

[0033] Embodiment 2 Preparation of modified wood flour

[0034] The modified wood flour described in this example is obtained by modifying wood flour with a phenolic resin adhesive. The specific preparation steps include: according to the mass ratio of 0.2:1, commercially available Dissolve phenolic resin adhesive and wood powder with a particle size of 0.5-1.5mm in water and mix well, and heat up to 50-60°C for a full mixing reaction for 1-3 hours. After the reaction, the solvent water is removed under reduced pressure, and then Put it into an oven and dry it at 70-90°C to get the desired modified wood powder.

Embodiment 3

[0035] Embodiment 3 Preparation of modified wood flour

[0036] The modified wood flour described in this example is obtained by modifying wood flour with a phenolic resin adhesive. Dissolve phenolic resin adhesive and wood powder with a particle size of 0.5-1.5mm in water and mix well, and heat up to 50-60°C for a full mixing reaction for 1-3 hours. After the reaction, the solvent water is removed under reduced pressure, and then Put it into an oven and dry it at 70-90°C to get the desired modified wood powder.

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Abstract

The invention belongs to the technical field of plastic-wood composite material processing, and particularly relates to a plastic-wood composite material with a low linear thermal expansion coefficient, and the invention further discloses a preparation method for the plastic-wood composite material. The plastic-wood composite material with a low linear thermal expansion coefficient which is disclosed by the invention is prepared from the following materials of modified wood powder, high-density polyethylene, carboxyl-polyester resin, N,N,N',N'-tetrakis(2-hydroxyethyl)adipamide, asbestos fiberpowder, nylon 1010 resin, hafnium carbide ceramic powder, coupling agent and lubricating agent. The obtained plastic-wood composite material has excellent thermal expansion-resistant property, so theoutdoor service life of the plastic-wood composite material is prolonged and appearance smoothness of the plastic-wood composite material is greatly improved; and since the plastic-wood composite material with a low linear thermal expansion coefficient can be obtained only by the conventional extrusion process, the preparation process is simple and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of wood-plastic composite material processing, in particular to a wood-plastic composite material with low linear thermal expansion coefficient, and further discloses a preparation method thereof. Background technique [0002] Wood-plastic composites (Wood-Plastic Composites, WPC) is a new type of composite material that has been booming at home and abroad in recent years. It mostly refers to mixing and extruding wood matrix materials with thermoplastics and processing aids It is a composite material that combines the dual characteristics and advantages of wood and plastic, fully embodies a series of advanced concepts such as resource utilization, environmental protection and conservation, and is an ideal green product. Wood-plastic materials look like plastic but not plastic, like wood but not wood, and have both the good physical and chemical properties and mechanical processing properties of plastic and w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L97/02C08L61/06C08L67/00C08L77/06C08K13/04C08K7/12C08K3/18C08K5/20
CPCC08K2201/003C08L23/06C08L2205/025C08L2205/035C08L2207/062C08L97/02C08L61/06C08L67/00C08L77/06C08K13/04C08K7/12C08K3/18C08K5/20
Inventor 盛岳金赵小亮王永垒
Owner HUANGSHAN MEISEN NEW MATERIAL TECH
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