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Straw wood-plastic composite board

A composite board and wood-plastic technology, which is applied in the field of decorative boards, can solve the problems of poor physical strength of the core board, discarded crop straws, general physical strength, etc., and achieve the effects of improving wear resistance, prolonging service life, and not being easily scratched

Inactive Publication Date: 2013-10-23
TAIZHOU HUALI PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent of Chinese Patent Publication No. CN1872915A discloses a profile synthesized by using plant waste straw and its preparation method. The preparation method is to mix waste straw powder with plastic resin, calcium carbonate, flame retardant, anti-aging agent, etc. , extruded into a synthetic board, the manufactured composite board has certain mechanical properties, and has the characteristics of sound absorption, heat insulation, fire prevention, corrosion resistance, aging resistance, easy processing, etc., but this composite board has the following defects: one is water resistance The second is that the surface wear resistance is poor, and the third is that the physical strength is average and easy to damage
The patent of Chinese Patent Publication No. CN1958253A discloses a kind of crop straw wood-plastic composite board. This kind of wood-plastic composite board is to paste veneers on the upper and lower sides of the core board respectively, which greatly improves the physical strength of the wood-plastic composite board. However, this kind of wood-plastic composite board has the following defects: one is that the surface wear resistance is poor, and the other is that the physical strength of the core board itself is relatively poor. The physical strength of the composite board, but in order to achieve a certain physical strength, the thickness of the veneer that needs to be pasted is thicker, which leads to a thicker thickness of the entire wood-plastic composite board (generally more than 6mm). The application of the board is limited (for example, it cannot meet the needs of decoration), and on the other hand, the material consumed to manufacture this kind of wood-plastic composite board is also more
Therefore, there are not many ways to really form large-scale production at present, and there are not many ways to consume a large amount of crop straw. A large amount of crop straw is discarded, which not only causes waste of resources, but also causes serious environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Process 1. Make a transparent film with a colorless UV coating on the outer surface according to the conventional process.

[0030] Process 2. Make a color film with imitation stone patterns according to the conventional process.

[0031] Process 3. Make polyvinyl chloride sheets according to the conventional process, with a thickness of 0.5 mm.

[0032] Operation 4, make straw wood-plastic polyvinyl chloride, chlorinated polyvinyl chloride crust foam board according to the following components.

[0033] 1) Make straw powder: dry the straw to a moisture content of 6%, then put it into a grinder and grind it to 50 mesh;

[0034] 2) According to the weight ratio, select 70 parts of SG-7 polyvinyl chloride, 25 parts of chlorinated polyvinyl chloride with a degree of polymerization of 700 and a chlorine content of 67%, 30 parts of straw powder, 4 parts of calcium-zinc composite stabilizer, acrylate 3.5 parts of polymers, 1.5 parts of titanium dioxide, 1 part of azo foamin...

Embodiment 2

[0049] Except for step 4, other steps are basically the same as in Example 1.

[0050] Operation 4, make straw wood-plastic polyvinyl chloride, chlorinated polyvinyl chloride crust foam board according to the following components.

[0051] 1) Make straw powder: dry the straw until the water content is 8%, then put it into a grinder and grind it to 80 mesh;

[0052] 2) According to the proportion by weight, select 68 parts of SG-6 polyvinyl chloride, 30 parts of chlorinated polyvinyl chloride with a degree of polymerization of 500 and a chlorine content of 67%, 32 parts of straw powder, 5 parts of organotin stabilizer, acrylic ester 4 parts of polymer, 2 parts of superfine calcium carbonate, 1.2 parts of azo foaming agent, 0.8 part of oxidized polyethylene wax, 1 part of paraffin wax, 1 part of ACR-201 processing aid, 0.3 part of BHT as antioxidant, The filling agent is 15 parts of heavy calcium carbonate. All the above-mentioned materials were added into a high-speed mixer f...

Embodiment 3

[0054] Except for step 4, other steps are basically the same as in Example 1.

[0055] Operation 4, make straw wood-plastic polyvinyl chloride, chlorinated polyvinyl chloride crust foam board according to the following components.

[0056] 1) Make straw powder: dry the straw to a moisture content of 10%, then put it into a grinder and grind it to 100 mesh;

[0057] 2) According to the weight ratio, select 65 parts of SG-7 polyvinyl chloride, 35 parts of chlorinated polyvinyl chloride with a degree of polymerization of 700 and a chlorine content of 67%, 35 parts of straw powder, 6 parts of calcium-zinc composite stabilizer, acrylate 4.5 parts of polymer, 2.5 parts of titanium dioxide, 1.5 parts of azo foaming agent, 0.9 parts of calcium stearate, 1.2 parts of polyethylene wax, 1.5 parts of ACR-401 processing aid, 0.4 parts of BHT as an antioxidant , the filler chooses 15 parts of light calcium carbonate. All the above-mentioned materials were added into a high-speed mixer for...

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Abstract

The invention discloses a straw wood-plastic composite board which has a multi-layer composite structure and comprises a wear-resistant layer, a color film layer, a bottom piece and a base material from top to bottom, wherein the base material is a straw wood-plastic crust foaming plate; the wear-resistant layer is a transparent film provided with a colorless ultraviolet (UV) coating on the outer surface; the straw wood-plastic composite board has a further improvement that the bottom piece is a polyvinyl chloride (PVC) piece with the thickness of 0.2-1mm; the base material can be a straw wood-plastic PVC or chlorinated PVC crust foaming plate. The straw wood-plastic composite board is light in weight, has high physical strength and outer surface wear resistance, is relatively good in decoration, wide in application scope and great in market demand, can be used for scale production in deed and consumes a great deal of crop straws, thus not only fully utilizing the existing biological resources, but also reducing the environmental pollution and protecting the environment.

Description

technical field [0001] The invention relates to a decorative plate, in particular to a composite wall panel. Background technique [0002] As a by-product of agricultural production, crop straw has a large output and is widely distributed. According to statistics, the current production of crop straw in my country is about 800-1000 million tons per year. For a long time, extensive research has been done on the comprehensive utilization of crop straws at home and abroad, and some available ways have been obtained. The patent of Chinese Patent Publication No. CN1872915A discloses a profile synthesized by using plant waste straw and its preparation method. The preparation method is to mix waste straw powder with plastic resin, calcium carbonate, flame retardant, anti-aging agent, etc. , extruded into a synthetic board, the manufactured composite board has certain mechanical properties, and has the characteristics of sound absorption, heat insulation, fire prevention, corrosion...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B33/00B32B7/12C08L27/06C08L27/24C08L97/02
Inventor 袁华寿
Owner TAIZHOU HUALI PLASTIC
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