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Method for preparing lightweight high-strength composite material by utilization of paper-based honeycomb panel and wood plastic composite material

A technology for high-strength composite materials and wood-plastic composite materials, which is applied in the field of preparing light-weight and high-strength composite materials, can solve the problems of high preparation cost, easy water absorption and deformation, inconvenient use, etc., and achieves low carbon and good waterproof performance during production and use. , the effect of structural stability

Inactive Publication Date: 2012-05-02
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the existing wood-plastic composite materials are inconvenient to use, the preparation cost is high, and the existing paper honeycomb panels have extremely low strength and are easy to absorb water and deform. Method for preparing light-weight high-strength composite material from wood-plastic sheet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Specific embodiment one: the present embodiment utilizes paper honeycomb board and wood-plastic veneer to prepare the side of light-weight high-strength composite material to carry out as follows: one, paper honeycomb board is placed in the container that fills phenolic resin glue and dipped for 2min, Take it out and stretch it out, then put it in an oven, heat it at 130-160°C for 5-10 minutes, then sand the upper and lower surfaces to remove the resin layer on the surface and expose the paper fibers to obtain a paper core board;

[0014] 2. Use a steel brush to roughen one side of the wood-plastic sheet vertically and horizontally to break the plastic layer on the surface;

[0015] 3. Roll-coat a layer of isocyanate glue or epoxy resin glue on the upper and lower surfaces of the paper core board and the roughened surface of the wood-plastic sheet;

[0016] 4. Take two wood-plastic veneers to cover the upper and lower surfaces of the paper core board respectively, and t...

specific Embodiment approach 2

[0020] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, heating at 130° C. for 10 minutes. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0021] Embodiment 3: This embodiment is different from Embodiment 1 in that in Step 1, heating is performed at 160° C. for 5 minutes. Other steps and parameters are the same as those in Embodiment 1.

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PUM

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Abstract

A method for preparing a lightweight high-strength composite material by the utilization of a paper-based honeycomb panel and a wood plastic composite material relates to a preparation method of a lightweight high-strength composite material. Present wood plastic composite materials are not convenient to use and are prepared at high cost, and present paper-based honeycomb panels have low strengthand are easy to absorb water and deform. The invention solves the above problems of present wood plastic composite materials and present paper-based honeycomb panels. The method provided by the invention comprises the following steps of: firstly, dipping a paper-based honeycomb panel into a container filled with phenol-formaldehyde resin adhesive, taking out and splaying out the paper-based honeycomb panel, heating and sanding to obtain a paper core plate; secondly, matting one surface of a wood plastic thin plate; thirdly, coating a layer of isocyanate adhesive or epoxy resin adhesive with aroller on upper and lower surfaces of the paper core plate and the matted surface of the wood plastic thin plate; and finally, using two wood plastic thin plates to respectively cover the upper and lower surfaces of the paper core plates, allowing the matted surface to contact with the paper core plate to obtain a combined slab, and bonding to finish. The lightweight high-strength composite material obtained in the invention is low carbon and environmentally friendly during the production and application processes, is convenient to use, and has characteristics of high water proofness, non-deformable performance, light weight, high strength and low cost.

Description

technical field [0001] The invention relates to a method for preparing lightweight high-strength composite materials. Background technique [0002] Wood Plastic Composites (WPC for short) refers to plant fiber or powder (such as wood, bamboo, peanut shell, coconut shell, flax, straw, etc.) as the main component (mass fraction of more than 60%), and A composite material made of waste thermoplastic polymers. It has the characteristics of high strength, high hardness, acid and alkali resistance, corrosion resistance, good processing performance, no deformation, no formaldehyde, and easy recycling. It is a very Promising green environmental protection material. However, wood-plastic composite materials also have the disadvantages of high material density, inconvenient handling and use, and high cost. [0003] Paper honeycomb panel is a commonly used packaging material, which is light in weight, low in cost, and has a good shock absorption effect. However, the strength of the ...

Claims

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Application Information

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IPC IPC(8): B32B3/12B32B9/04B32B27/04B32B37/06B32B37/10B32B37/12
Inventor 王伟宏韩超王海刚宋永明王清文
Owner NORTHEAST FORESTRY UNIVERSITY
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