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 exis

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] Specific embodiment 1: This embodiment uses paper honeycomb panels and wood-plastic thin panels to prepare lightweight and high-strength composite materials according to the following steps: 1. Put the paper honeycomb panels in a container filled with phenolic resin glue for 2 minutes, After taking it out, spread it out, then put it in an oven, heat it at 130-160℃ for 5-10min, then sand the upper and lower surfaces, grind away the surface resin layer, expose the paper fiber, and get the paper core board;

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

[0015] 3. Roll coating 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 sheets to cover the upper and lower surfaces of the paper core board respectively, and the roughened surface is in cont...

Example Embodiment

[0020] Specific embodiment two: this embodiment is different from specific embodiment one in that step one is heated at 130°C for 10 min. The other steps and parameters are the same as in the first embodiment.

Example Embodiment

[0021] Specific embodiment three: this embodiment is different from specific embodiment one in that step one is heated at 160°C for 5 min. The other steps and parameters are the same as in the first embodiment.

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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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