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Multilayer composite light impact board

A multi-layer composite and light-weight technology, applied in the direction of layered products, synthetic resin layered products, cellulose plastic material layered products, etc., can solve the problem of heavy weight

Inactive Publication Date: 2016-03-23
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past composite boards, the most common composite method is the composite of each solid board, which is similar to the composite of multi-layer wood boards. Although this composite method can provide greater strength, it is heavy

Method used

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  • Multilayer composite light impact board
  • Multilayer composite light impact board
  • Multilayer composite light impact board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] refer to figure 1 , a multi-layer composite lightweight impact board, which is composed of 4 layers of boards, including an upper polylactic acid toughened panel 1, a reticulated starch composite pressed board 2, a honeycomb paperboard 3, and a bottom elastic polyurethane bottom board 4 from top to bottom. It is also characterized in that: nano particle suspension buffers are arranged in the grid of the reticular starch composite pressed board 2 .

[0029] The polylactic acid toughened panel 1 is a board obtained by melting and extruding polylactic acid, polycaprolactone, and polylactic acid-polycaprolactone copolymer as main raw materials. Wherein the mass fraction of polylactic acid is 45%, the mass fraction of polycaprolactone is 40%, and the mass fraction of polylactic acid-polycaprolactone copolymer is 15%.

[0030] The reticular starch composite pressed board 2 is formed by pressing and foaming thermoplastic starch, hydroxymethyl starch, nanocellulose and EVA as ...

Embodiment 2

[0047] The polylactic acid toughened panel 1' is a board obtained by melt extrusion with polylactic acid, polycaprolactone, and polylactic acid-polycaprolactone copolymer as main raw materials. Wherein the mass fraction of polylactic acid is 50%, the mass fraction of polycaprolactone is 34%, and the mass fraction of polylactic acid-polycaprolactone copolymer is 16%.

[0048] The reticular starch composite pressing board 2' is formed by pressing and foaming thermoplastic starch, hydroxymethyl starch, nanocellulose and EVA as main raw materials, adding a small amount of plasticizer, waterproofing agent and foaming agent.

[0049] The mass fraction of thermoplastic starch in the main raw materials is 42%, the mass fraction of hydroxymethyl starch is between 35%, the mass fraction of nanocellulose is 10%, and the mass fraction of EVA is 13%. The amount of plasticizer is 2.5% of the mass of the main material, the amount of waterproofing agent is 2% of the mass of the main materia...

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Abstract

The invention relates to a multilayer composite light impact board which is obtained by compounding four layers of boards which sequentially comprise an upper polylactic acid toughened panel, a netty starch composite pressboard, a honeycomb paperboard and a bottom elastic polyurethane bottom board from top to bottom. The board is further characterized in that nano-particle suspended buffer bodies are arranged in grids of the netty starch composite pressboard. The composite board is light in weight and good in strength and impact resistance, and can be applied to the field of industrial and civil panels for cushion protection.

Description

technical field [0001] The invention relates to a preparation method of a board, in particular to a preparation method of an environmentally friendly composite board with light weight, excellent strength and impact resistance. Background technique [0002] Board is currently the most widely used material, and it has a wide range of uses, such as decorative boards, packaging boards, construction and other fields. In the field of packaging boards, due to the improvement of people's living standards and the great development of logistics, the demand for packaging has increased rapidly, and due to changes in the nature of commodities, higher requirements have been put forward for the outer packaging boards. In addition to excellent mechanical properties including strength, toughness, elasticity, etc., environmental protection has also been proposed. Due to its optional structure, plastic panels can be matched with various panels with different high performance. However, plastic...

Claims

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Application Information

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IPC IPC(8): B32B9/04B32B5/02B32B3/12B32B27/10B32B27/40B32B27/28B32B27/12B32B23/06B32B23/08B32B23/14
CPCB32B9/04B32B2250/04B32B2266/0278B32B2270/00B32B2305/022B32B2305/024B32B2305/38B32B2307/558B32B2317/20
Inventor 陈一
Owner HUNAN UNIV OF TECH