Plastic-wood composite material and preparation method thereof

A wood-plastic composite material and straw technology, which is applied in the field of composite materials, can solve problems such as insufficient nail absorption, difficulty in nailing, and easy cracking of the board, so as to improve nail holding force, prevent surface roughness, and improve physical and mechanical properties. performance effect

Inactive Publication Date: 2013-12-25
贵州普林鑫泰塑木科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the wood-plastic composite products sold in the market have the disadvantages that nails are difficult to drive in, and the board is easily cracked, and the nail suction is not strong enough after nailing in.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Wood-plastic composite materials, including the following components in parts by weight:

[0047] 2 parts melamine resin

[0048] Straw 70 parts

[0049] Low concentration polyethylene 28 parts

[0050] Solubilizer 1 part

[0051] Lubricant 1 part

[0052] Soluble silicate 0.5 parts.

[0053] The solubilizer is a copolymer of maleic anhydride, acrylic acid and styrene.

[0054] The lubricant is simethicone.

[0055] The soluble silicate is selected from water glass.

[0056] A method for preparing wood-plastic composite materials, comprising the following steps:

[0057] a. Mix melamine resin with rice straw and rice husk fiber at a high speed, the mixing temperature is 120°C, and dehydrate to obtain modified rice straw;

[0058] B, above-mentioned modified rice straw is mixed with low-density polyethylene, solubilizer, lubricant, soluble silicate, extrusion granulation;

[0059] c. Extruding the particles obtained by granulation, cooling and cutting;

[0060]...

Embodiment 2

[0062] Wood-plastic composite materials, including the following components in parts by weight:

[0063] 2.5 parts of melamine resin

[0064] Rice husk fiber 65 parts

[0065] Low concentration polyethylene 30 parts

[0066] Solubilizer 2 parts

[0067] Lubricant 2 parts

[0068] Soluble silicate 1 part.

[0069] The solubilizer is a copolymer of maleic anhydride, acrylic acid and styrene.

[0070] The lubricant is polyester wax.

[0071] The soluble silicate is selected from water glass.

[0072] A method for preparing wood-plastic composite materials, comprising the following steps:

[0073] a, heat mixing melamine resin and rice husk fiber at high speed, the mixing temperature is 130°C, dehydration to obtain modified rice husk fiber;

[0074] b. Mix the above-mentioned modified rice husk fiber with low-density polyethylene, solubilizer, lubricant, soluble silicate, and extrude to granulate;

[0075] c. Extruding the particles obtained by granulation, cooling and cu...

Embodiment 3

[0078] Wood-plastic composite materials, including the following components in parts by weight:

[0079] 4 parts melamine resin

[0080] Combination of rice straw and rice husk fiber 65 parts

[0081] Low concentration polyethylene 34 parts

[0082] Solubilizer 3 parts

[0083] Lubricant 3 parts

[0084] Soluble silicate 1 to 1.5 parts.

[0085] The solubilizer is a copolymer of maleic anhydride, acrylic acid and styrene.

[0086] The lubricant is a mixture of simethicone oil and polyester wax.

[0087] The soluble silicate is selected from water glass.

[0088] A method for preparing wood-plastic composite materials, comprising the following steps:

[0089] a. Mix the combination of melamine resin and straw and rice husk fiber at high speed at a high speed, the mixing temperature is 135° C., and dehydrate to obtain modified straw and rice husk fiber;

[0090]b. Mix the above-mentioned modified rice straw, rice husk fiber with low-density polyethylene, solubilizer, lub...

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PUM

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Abstract

The invention discloses a plastic-wood composite material which comprises the following components in parts by weight: 2-5 parts of melamine resin, 50-70 parts of straw and rice hull fiber or combination of the two, 28-36 parts of low-concentration polyethylene, 1-5 parts of solubilizer, 1-5 parts of lubricant and 0.5-2 parts of soluble silicate. In the plastic-wood composite material disclosed by the invention, wood vinegar in the straw and rice hull fiber is quickly removed by use of the neutralization and evaporation effects generated by the melamine resin in a curing process, thus the bubble formation is avoided, and the rough surface of the plastic-wood composite material is prevented; by adding the soluble silicate into the components, the grip strength among the particles of the plastic-wood composite material is enhanced, and the nail-holding ability of a plate is improved.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a plastic-wood composite material and a preparation method thereof. Background technique [0002] In recent years, with the depletion of global resources and the increasing awareness of social environmental protection, higher requirements have been put forward for the application of wood and petrochemical products. In this context, the emergence of wood-plastic composite materials can not only give full play to the advantages of each component in the material, overcome the limitations of use caused by low strength of wood, large variability and low elastic modulus of organic materials, but also fully Use waste wood and plastic to reduce environmental pollution. From the point of view of production raw materials, various waste plastics, waste wood and crop residues can be used as raw materials for wood-plastic composite materials. Therefore, the developme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L61/28C08L23/06C08K3/34
Inventor 许文
Owner 贵州普林鑫泰塑木科技有限公司
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