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Highly-impact-resistant composite board and preparation method thereof

A composite board, high impact resistance technology, applied in the field of composite materials and resource regeneration, can solve the problems of particle board easy expansion, poor mechanical properties, non-degradation, etc., to achieve no waste of forest resources, convenient production and high impact resistance Effect

Inactive Publication Date: 2018-07-24
NANJING VOCATIONAL UNIV OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these non-bearing boards have some or other defects or deficiencies during use, such as: wooden boards are easy to crack, deform, and easy to be eaten by insects, and the use of wooden boards will lead to more trees being felled, which is easy to cause Water and soil erosion is not conducive to ecological protection, etc.; plastic boards are easy to deform, poor in coloring, and poor in touch, and their production process will waste fossil resources, which is also not conducive to ecological environmental protection, and will not degrade after being discarded; particle boards are easy to swell when wet , poor mechanical properties, formaldehyde and other toxic and harmful components will be released during use; laminated panels have low impact strength and poor water resistance, and a large number of trees need to be cut down during the production process, which is not conducive to water and soil conservation and environmental protection.
[0003] On the other hand, with the continuous and rapid development of my country's economy, more and more buildings and furniture use wood products. These wood products produce a large amount of wood powder in the production process. If these wood powders are directly burned or discarded, it will cause a large amount of waste of resources

Method used

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preparation example Construction

[0040] The present invention also provides a method for preparing a high-impact composite plate, comprising the following steps:

[0041] S1. Combine waste plastics, wood powder, glass beads, rubber powder, silicon nitride whiskers, maleic anhydride, and composite toughening agent in a mass ratio of 100:100-120:4-6:1-5:0.3-0.7 : 10-20: 5-15 Stir and mix evenly, and then calendered into a wood-plastic composite material layer plate for the upper wood-plastic composite material layer and the lower plastic-wood composite material layer, the thickness of the wood-plastic composite material layer plate is 3-5mm;

[0042] S2. Calendering the new plastic material into a plastic outer structural layer plate, the thickness of the plastic outer structural layer plate is 3-5mm;

[0043] S3. Take the mold cavity formed by compression molding, place a layer of plastic outer structural layer plate rolled in step S2 horizontally on the bottom of the mold cavity, and place a layer of plastic...

Embodiment 1

[0050] A method for preparing a high-impact composite plate, the preparation process of which is:

[0051] (1) Mix waste plastics, wood flour (80 mesh), glass beads (true density 0.60g / cm 3 , volume floating rate ≥ 96%), rubber powder (particle size 0.9mm), silicon nitride whisker (fiber diameter 0.35μm, fiber length 30μm), maleic anhydride, composite toughening agent by mass ratio 100:110:5 : 3: 0.5: 15: 10 Stir and mix evenly, and then calender the wood-plastic composite material layer plate for the upper wood-plastic composite material layer and the lower plastic-wood composite material layer. The thickness of the wood-plastic composite material layer plate is 4mm;

[0052] (2) The low-density polyethylene plastic new material is calendered into a plastic outer structural layer sheet, and the thickness of the plastic outer structural layer sheet is 4mm;

[0053] (3) Place a layer of plastic outer structural layer plates horizontally at the bottom of the cavity of the comp...

Embodiment 2

[0058] A method for preparing a high-impact composite plate, the preparation process of which is:

[0059] (1) Mix waste plastics, wood flour (40 mesh), glass beads (true density 0.57g / cm 3 , volume floating rate ≥ 96%), rubber powder (particle size 0.8mm), silicon nitride whisker (fiber diameter 0.1μm, fiber length 10μm), maleic anhydride, composite toughening agent by mass ratio 100:100:4 : 1: 0.3: 10: 5 Stir and mix evenly, and then calendered by a calender to form a wood-plastic composite material layer for the upper wood-plastic composite material layer and the lower plastic-wood composite material layer. The thickness of the wood-plastic composite material layer is 3mm;

[0060] (2) The low-density polyethylene plastic new material is calendered into a plastic outer structural layer sheet, and the thickness of the plastic outer structural layer sheet is 3mm;

[0061] (3) Place a layer of plastic outer structural layer plates horizontally at the bottom of the cavity of ...

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Abstract

The invention relates to a highly-impact-resistant composite board and a preparation method thereof and belongs to the technical field of composite materials and resource regeneration. The highly-impact-resistant composite board is formed by die pressing of a plastic outer-structure layer, glass-fiber cloth, an upper plastic-wood composite material layer, a lower plastic-wood composite material layer and a steel-wire mesh, wherein the steel-wire mesh is positioned between the upper plastic-wood composite material layer and the lower plastic-wood composite material layer; the glass-fiber clothwraps the whole peripheries of the upper plastic-wood composite material layer, the lower plastic-wood composite material layer and the steel-wire mesh; the periphery of the glass-fiber cloth is die-pressed by the plastic outer-structure layer; the plastic outer-structure layer is formed by plastic outer-structure layer boards; the upper plastic-wood composite material layer and the lower plastic-wood composite material layer are respectively formed by plastic-wood composite layer boards. The highly-impact-resistant composite board is simple in structure, convenient in production and manufacture, low in production cost, good in water resistance, difficult in moisture-absorbing expansion, cracking and insect damage, good in impact resistance, more friendly to environment, higher in modulus,larger in rigidity and better in creep resistance.

Description

technical field [0001] The invention belongs to the technical field of composite materials and resource regeneration, and in particular relates to a high-impact composite plate and a preparation method thereof. Background technique [0002] It is often necessary to use non-bearing boards in many occasions such as furniture making, home and office decoration, and municipal construction. Traditionally, these non-bearing boards are generally wood boards, plastic boards, particle boards or laminated boards. However, these non-bearing boards have some or other defects or deficiencies during use, such as: wooden boards are easy to crack, deform, and easy to be eaten by insects, and the use of wooden boards will lead to more trees being felled, which is easy to cause Water and soil erosion is not conducive to ecological protection, etc.; plastic boards are easy to deform, poor in coloring, and poor in touch, and their production process will waste fossil resources, which is also n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/02B32B15/08B32B15/10B32B17/02B32B17/10B32B17/06B32B27/32B32B27/30B32B37/06B32B37/10
CPCB32B15/02B32B15/08B32B15/10B32B15/14B32B27/12B32B27/302B32B27/32B32B37/06B32B37/10B32B2262/101B32B2307/558
Inventor 余旺旺
Owner NANJING VOCATIONAL UNIV OF IND TECH
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