Wood-plastic composite of wood decorative sheet attaching veneer and preparation method thereof

A wood-plastic composite material and wood-plastic composite technology, applied in the field of wood-plastic composite materials and their preparation, can solve problems such as difficult bonding and lack of natural wood texture, achieve high environmental protection, avoid formaldehyde release problems, and have uniform and beautiful textures Effect

Active Publication Date: 2014-06-04
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing wood-plastic composite materials lack the natural texture of wood and the wooden decorative boards an...

Method used

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  • Wood-plastic composite of wood decorative sheet attaching veneer and preparation method thereof
  • Wood-plastic composite of wood decorative sheet attaching veneer and preparation method thereof

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specific Embodiment approach 1

[0056] Specific Embodiment 1: In this embodiment, a wood-plastic composite material facing a wooden decorative board is made of wood-plastic composite boards, non-woven fabrics, wooden decorative boards and wood adhesives, or is made of wood-plastic composite boards, Made of non-woven fabric and wood trim.

[0057] Advantages of the wood-plastic composite material veneered by the wooden decorative board in this embodiment:

[0058] 1. In this embodiment, high-quality natural veneer and wooden veneer can be used as decorative materials, because wooden decorative materials have the advantages of uniform and beautiful texture and pleasing color, especially decorative veneer and veneer are made of natural high-quality tree species, which have extremely high decorative value , so the wooden feeling and added value of wood-plastic composite materials are improved.

[0059] 2. In this embodiment, non-woven fabric is used as the middle layer between the wood-plastic base material and...

specific Embodiment approach 2

[0064] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the wood-plastic composite board is prepared according to the following steps:

[0065] 1. Weigh 30-50 parts by mass of polyolefin, 40-70 parts of wood flour and 5-10 parts of filler, and mix them uniformly to obtain a mixed powder;

[0066] 2. Control the rotational speed of the twin-screw extruder to 30r / min-100r / min and the temperature of each barrel to 130°C-175°C, then melt and mix the mixed powder obtained in step 1 through the twin-screw extruder and extrude it , to obtain wood-plastic composite pellets;

[0067] 3. Control the speed of the single-screw extruder to 10r / min-100r / min and the temperature of each barrel to 130°C-175°C, add the wood-plastic composite pellets obtained in step 2 into the single-screw extruder and extrude Forming and cooling to obtain wood-plastic composite boards;

[0068] Wherein, the polyolefin described in step 1 is polyethylene, polypropylene or polyviny...

specific Embodiment approach 3

[0069] Specific embodiment three: The difference between this embodiment and specific embodiment one or two is that the filler described in step one is made of maleic anhydride grafted polyethylene, paraffin wax and polystyrene with a mass fraction ratio of 2:1:1. Composition of vinyl wax. Other parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a wood-plastic composite of wood decorative sheet attaching veneer and a preparation method thereof and aims at solving the problems that an existing wood-plastic composite lacks the natural texture of wood, and it is hard to enable a wood decorative sheet to be adhered to a wood-plastic composite sheet through traditional wood adhesive. The wood-plastic composite is mainly made of a wood-plastic composite sheet, non-woven cloth, a wood decorative sheet and wood adhesive or is made of the wood-plastic composite sheet, the non-woven cloth and the wood decorative sheet. According to the two technical schemes of the wood-plastic composite, the special structure of the non-woven cloth is utilized, wood adhesive is used, and the wood decorative sheet and the wood-plastic composite sheet are finalized in design through a hot-press means, so that preparation is finished. In the other technical scheme, on the condition that no wood adhesive is used, the consistency of the non-woven and the surface of the wood-plastic composite sheet and the penetrating function of the non-woven cloth on surface layer materials at melting time are utilized, and the wood decorative sheet and the wood-plastic composite sheet are finalized in design through hot press and cooling. The wood-plastic composite of the wood decorative sheet attaching veneer and the preparation method are applied in the wood processing field.

Description

technical field [0001] The invention relates to a wood-plastic composite material and a preparation method thereof. Background technique [0002] Wood-plastic composite (WPC) is a new green and environmentally friendly composite material processed from wood fiber and thermoplastic polymer materials. Wood-plastic composite materials and their products have both the advantages of wood and plastics, such as water resistance, anti-corrosion, dimensional stability and no formaldehyde release, and have many characteristics that wood and wood-based panels do not have. [0003] However, the surface of wood-plastic composite materials lacks the natural texture of wood, and the color is monotonous and dull, which is difficult to meet people's visual, tactile and comfort requirements. At the same time, due to the special processing technology, the surface of wood-plastic composite materials will always be enriched with a layer of thermoplastics, which are mostly non-polar (especially ...

Claims

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Application Information

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IPC IPC(8): B27N3/28B32B21/04B32B21/06B32B37/10B32B37/12
Inventor 王伟宏郭丽敏黄浪王清文
Owner NORTHEAST FORESTRY UNIVERSITY
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