Micro-foaming wood plastic composite sheet and preparation method thereof

A wood-plastic composite material and micro-foaming technology, applied in the field of wood-plastic composite materials, can solve the problems of high price and high density, and achieve the effect of low cost, low density and cost reduction

Active Publication Date: 2011-11-02
扬州润友复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also some obvious deficiencies, such as high density, high price, etc., so its scope of use has been greatly limited

Method used

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  • Micro-foaming wood plastic composite sheet and preparation method thereof
  • Micro-foaming wood plastic composite sheet and preparation method thereof
  • Micro-foaming wood plastic composite sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] PVC plastic particles 100, wood flour (100 mesh) 20, nano-montmorillonite (35nm) 3.5,

[0029] Calcium carbonate powder (1200 mesh) 5, azodicarbonamide 0.6, foam regulator 5,

[0030] White oil 0.5, mica powder (1250 mesh) 1.3, heat stabilizer 6,

[0031] Chlorinated polyethylene 3, UV absorber (UV531) 0.15.

[0032] (1) take each raw material by formula quantity;

[0033] (2) Polyvinyl chloride plastic particles, nano-montmorillonite, calcium carbonate powder, white oil, heat stabilizer, and mica powder were placed in a mechanical stirring tank and stirred for 8 minutes, then extruded and granulated, and the granulated extrusion temperature was 170°C to obtain modified plastic particles;

[0034] (3) Place the above-mentioned modified plastic particles, wood powder, azodicarbonamide, foam regulator, chlorinated polyethylene, and ultraviolet absorber in a mechanically stirred tank and mechanically stir again for 4 minutes;

[0035] (4) After mixing, use an extruder ...

Embodiment 2

[0037] Polyvinyl chloride plastic particles 100, wood powder (80 mesh) 15, nanometer montmorillonite (20nm) 2,

[0038] Calcium carbonate powder (800 mesh) 4, azodicarbonamide 0.4, foam regulator 3,

[0039] White oil 0.4, mica powder (1250 mesh) 1, heat stabilizer 4,

[0040] Chlorinated polyethylene 2, UV absorber (L770) 0.1.

[0041] (1) take each raw material by formula quantity;

[0042] (2) Polyvinyl chloride plastic particles, nano-montmorillonite, calcium carbonate powder, white oil, heat stabilizer, and mica powder were placed in a mechanical stirring tank and stirred for 6 minutes, then extruded and granulated, and the granulated extrusion temperature was 160°C to obtain modified plastic particles;

[0043] (3) The above-mentioned modified plastic particles, wood flour, azodicarbonamide, foam regulator, chlorinated polyethylene, and ultraviolet absorber are placed in a mechanically stirred tank and mechanically stirred again for 3 minutes;

[0044] (4) After mixi...

Embodiment 3

[0046] PVC plastic particles 100, wood powder (120 mesh) 25, nanometer montmorillonite (50nm) 5,

[0047] Calcium carbonate powder (1500 mesh) 6, azodicarbonamide 0.8, foam regulator 7,

[0048] White oil 0.6, mica powder (2500 mesh) 1.6, heat stabilizer 8,

[0049] Chlorinated polyethylene 4, ultraviolet absorber (UV531) 0.2.

[0050] (1) take each raw material by formula quantity;

[0051] (2) Polyvinyl chloride plastic particles, nano-montmorillonite, calcium carbonate powder, white oil, heat stabilizer, and mica powder were placed in a mechanical stirring tank and stirred for 10 minutes, then extruded and granulated, and the granulated extrusion temperature was 180°C to obtain modified plastic particles;

[0052] (3) Place the above-mentioned modified plastic particles, wood flour, azodicarbonamide, foam regulator, chlorinated polyethylene, and ultraviolet absorber in a mechanically stirred tank and mechanically stir again for 5 minutes;

[0053] (4) After mixing, use ...

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Abstract

The invention relates to a wood plastic material and particularly relates to a micro-foaming wood plastic composite sheet and a preparation method thereof. The method provided by the invention comprises the following steps: evenly mixing polyvinyl chloride, nano-montmorillonite, calcium carbonate powder, white oil, a heat stabilizer and mica powder are uniformly stirred; and then carrying out extruding pelletization to obtain modified plastic particles; and then uniformly stirring the modified plastic particles with wood meal, azobisformamide, a foaming regulator, chlorinated polyethylene andan ultraviolent absorbent, and performing extrusion and foaming formation to obtain the micro-foaming wood plastic sheet. The micro-foaming wood plastic sheet has high degree of mechanization and lowcost, is lower in density, less in plastic amount and more environmentally-friendly compared with plastic sheets, is lower in density and higher in impact strength compared with other wood plastic materials, is lower in weight and cost and more convenient in installation and maintenance compared with gypsum boards, aluminum pinch plates and the like, and also has an air purification function. Themicro-foaming wood plastic sheet can be manufactured into products, such as photo frames, picture frames, skirtings, hangers and pinch plates and the like, and is widely applied to plenty of occasions, such as halls, guest houses, small offices and the like.

Description

technical field [0001] The invention relates to a wood-plastic composite material, in particular to a micro-foamed wood-plastic composite material board and a preparation method thereof. Background technique [0002] In recent years, with the enhancement of people's awareness of environmental protection, wood-plastic composite materials with a wide range of raw materials, environmental friendliness, renewable and recyclable use have attracted more and more attention. Wood-plastic composite materials can be used as packaging materials such as pallets and packing boxes, storage materials such as planks and beams, and leisure materials such as outdoor tables, chairs, and benches used in parks, stadiums, streets, etc. Wood-plastic profiles can be handled with general woodworking techniques, can be cut with a circular saw, and fixed with nails or screws, and the nail-holding force is significantly better than other synthetic materials, and the mechanical properties are better tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08L23/28C08K13/02C08K3/34C08K3/26C08K3/30C08K3/32C08K5/098C08J9/10
Inventor 徐致伟徐电友李浩宇雷文
Owner 扬州润友复合材料有限公司
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