Preparation method of high-strength wood-plastic composite material and high-strength wood-plastic composite material

A wood-plastic composite material and high-strength technology, applied in the field of furniture manufacturing, can solve the problems of inability to meet the relevant strength requirements of key structural parts of furniture, insufficient mechanical strength, and short service life, and achieve improved mechanical strength, strong corrosion resistance, Effects for easy re-manufacturing

Active Publication Date: 2014-12-24
GUANGDONG HONGYUN FURNITURE CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, most of the wood-plastic composite materials currently used in the field of furniture manufacturing are non-recyclable wood-plastic composite materials, resulting in waste of resources and inflated costs
However, some wood-plastic composite materials cannot meet the relevant strength requirements of key structural parts of furniture due to insufficient mechanical strength, and the furniture produced has poor performance and short service life. Therefore, it is necessary to improve the mechanical strength of wood-plastic materials.

Method used

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  • Preparation method of high-strength wood-plastic composite material and high-strength wood-plastic composite material
  • Preparation method of high-strength wood-plastic composite material and high-strength wood-plastic composite material
  • Preparation method of high-strength wood-plastic composite material and high-strength wood-plastic composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: The preparation method of the high-strength wood-plastic composite material provided in this embodiment comprises the following steps:

[0033] (1) prepare each component by following parts by weight:

[0034]

[0035]

[0036] Wherein said flame retardant is ammonium polyphosphate, one of melamine and dipentaerythritol;

[0037] (2) Dry the wood powder, and use the prepared titanate coupling agent to modify the surface of the dried wood powder to enhance its surface bonding performance;

[0038] Specifically, dry the wood powder in an electric blast drying oven at 120°C for 4 hours, degrease and dry it so that the moisture content is less than 0.2%, dilute the titanate coupling agent with acetone to 20% (V / V), then spray the diluted titanate coupling agent to treat the wood powder, and then add it to a high-speed mixer for pre-mixing for 0.5h, which can enhance its surface adhesion by more than 40%;

[0039] (3) with azobisisobutyronitrile and dod...

Embodiment 2

[0047] Example 2: The preparation method and product of high-strength wood-plastic composite material provided in this example, its steps and components are basically the same as those in Example 1, the difference is that it includes the following steps:

[0048] (1) prepare each component by following parts by weight:

[0049]

[0050]

[0051] (2) drying the wood powder, and using the prepared titanate coupling agent to modify the surface of the dried wood powder;

[0052] (3) with azobisisobutyronitrile and dodecyl mercaptan, methacrylic acid and butyl acrylate are carried out copolymerization reaction, obtain methacrylic acid, butyl acrylate copolymer;

[0053] (4) The modified wood powder, methacrylic acid, butyl acrylate copolymer, dioctyl phthalate, polyethylene PE, sodium edetate, ferrous sulfate, ammonium polyphosphate and peroxide Potassium sulfate was added to a high-speed mixer, and mixed for 5 minutes at a temperature of 80°C;

[0054] (5) Send the above-m...

Embodiment 3

[0058] Example 3: The preparation method and product of the high-strength wood-plastic composite material provided in this example, its steps and components are basically the same as those in Examples 1 and 2, the differences are:

[0059] A preparation method of high-strength wood-plastic composite material, comprising the following steps:

[0060] (1) prepare each component by following parts by weight:

[0061]

[0062]

[0063] (2) drying the wood powder, and modifying the dried wood powder with the prepared titanate coupling agent;

[0064] (3) with azobisisobutyronitrile and dodecyl mercaptan, methacrylic acid and butyl acrylate are carried out copolymerization reaction, obtain methacrylic acid, butyl acrylate copolymer;

[0065] (4) The modified wood powder, methacrylic acid, butyl acrylate copolymer, dioctyl phthalate, polyethylene PE, sodium edetate, ferrous sulfate, melamine and potassium persulfate , added to a high-speed mixer, and mixed for 8 minutes at a ...

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Abstract

The invention relates to a preparation method of a high-strength wood-plastic composite material. The preparation method comprises the following steps of (1) preparing the following components in parts by weight: 20-60 parts of wood powder, 5-15 parts of dioctyl phthalate, 1-4 parts of titanate coupling agent, 1-2 parts of methacrylic acid, 1-2 parts of butyl acrylate, 0.5-1 part of azobisisobutyronitrile, 20-30 parts of absolute ethyl alcohol, 0.1-0.5 part of dodecylthiol, 30-50 parts of polyethylene (PE), 1-5 parts of ethylenediamine tetraacetic acid, 10-20 parts of ferrous sulfate, 1-5 parts of potassium peroxodisulfate, 20-30 parts of acetone and 10-20 parts of flame retardant; (2) drying the wood powder, and modifying; (3) copolymerizing methacrylic acid and butyl acrylate; (4) mixing; and (5) granulating and carrying out compression molding. The invention also discloses the high-strength wood-plastic composite material prepared by using the method.

Description

technical field [0001] The invention relates to the field of furniture manufacturing, in particular to a method for preparing a high-strength wood-plastic composite material for making furniture, and a product prepared by the method. 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 refers to the use of polyethylene, polypropylene and polyvinyl chloride, etc. Wood flour, rice husk, straw and other waste plant fibers are mixed into new wood materials, and then processed by extrusion, molding, injection molding and other plastic processing techniques to produce boards or profiles. Mainly used in building materials, furniture, logistics packaging and other industries. The board formed by hot extrusion after mixing plastic and wood powder in a certain proportion is called extruded wood-plastic composite board. [0003] The basis of wood-plastic co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L33/02C08L23/06C08K13/02C08K5/12C08K3/30C08F220/06C08F220/18C08J5/00B29C47/92B29C48/92
Inventor 张小林
Owner GUANGDONG HONGYUN FURNITURE CO LTD
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