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Making process of compound wood-plastic material product

A technology of composite materials and manufacturing methods, which is applied in the field of manufacturing wood-plastic blended composite products, can solve the problems that consumers cannot feel the natural quality of wood, the filling amount of wood powder is not very high, and the appearance of wood-plastic products is not good. , to achieve the effect of high impact strength and tensile strength, high filling content and clear wood grain

Active Publication Date: 2006-03-01
浙江诚信包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Both of the above two patents involve the pre-drying and pre-treatment of wood powder, which will greatly reduce production efficiency and high production cost
And because the filling amount of wood flour in the mixture is not very high, the appearance of the wood-plastic product produced by its method is not good, and consumers cannot feel the natural quality of wood.
[0009] In addition, my country is a big country of bamboo, and the leftovers from bamboo processing can also be used as an important source of wood powder, which has not yet been covered by patents

Method used

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  • Making process of compound wood-plastic material product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The formula of wood-plastic blended composite particles is as follows:

[0024] Wood flour (80 mesh): 100 parts

[0025] Polypropylene: 50 parts

[0026] Polypropylene-maleic anhydride graft copolymer: 3 parts

[0027] Coupling agent A-174: 1 part

[0028] Antioxidant 1010: 0.6 parts

[0029] Fiberglass: 8 parts

[0030] Toner: 0.2 parts

[0031] Stearic acid: 1 part

[0032] According to the above ratio, add the pelletizing extruder at the same time. The granulation extruder adopts a counter-rotating non-intermeshing twin-screw extruder connected in series with a single-screw extruder. Extruder screw diameter 65mm, L / D=28. The prepared pellets are extruded on a single-screw extruder, cooled and shaped, pulled, cut, and modified, and finally made into various wood-plastic products.

Embodiment 2

[0034] The formula of wood-plastic blended composite particles is as follows:

[0035] Bamboo powder (60 mesh): 100 parts

[0036] Polypropylene: 60 parts

[0037] Polypropylene-maleic anhydride graft copolymer: 3 parts

[0038] Dicumyl peroxide: 0.3 parts

[0039] Antioxidant 1010: 1 serving

[0040] Superfine Calcium Carbonate: 15 parts

[0041] Toner: 0.2 parts

[0042] Zinc stearate: 0.5 parts

[0043] Bamboo powder is processed and pulverized from the leftovers of ordinary bamboo processing, and the moisture content is 10%. According to the above ratio, add the pelletizing extruder at the same time. The granulation extruder adopts a counter-rotating non-intermeshing twin-screw extruder connected in series with a single-screw extruder. Extruder screw diameter 65mm, L / D=28. The produced pellets are extruded in a single-screw extruder, cooled and shaped, drawn, cut, modified, and finally made into various wood-plastic products.

Embodiment 3

[0045] The formula of wood-plastic blended composite particles is as follows:

[0046] Wood flour (80 mesh): 100 parts

[0047] HDPE: 70 parts

[0048] Ethylene-vinyl acetate copolymer: 3 parts

[0049]Stearic acid: 1 part

[0050] Titanate coupling agent: 2 parts

[0051] Talc powder: 15 parts

[0052] Toner: 0.2 parts

[0053] Polyoxyethylene wax: 0.5 parts

[0054] Paraffin: 0.5 parts

[0055] According to the above ratio, add the pelletizing extruder at the same time. The granulation extruder adopts a co-rotating meshing twin-screw extruder with a screw diameter of 36 mm, L / D=36, and a rotational speed of 200 rpm. The produced pellets are extruded in a twin-screw extruder, cooled and shaped, drawn, cut, modified, and finally made into various wood-plastic products.

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Abstract

The present invention discloses the making process of compound wood-plastic material product. Un-dried wood powder, plastic grain, compatibilizing agent, coupler, antioxidant, reinforcer, color powder and lubricant in certain proportion are fed to a pelletizing extruder for form granular material; and the granular material is extruded in a forming extruder and further processed through cooling to settle, drawing, cutting and decorating to produce the wood-plastic product. The present invention has the advantages of simple process, high production effect and rich material resource, and the product has timber-like texture, excellent performance and environment friendship.

Description

technical field [0001] The invention relates to a method for manufacturing a wood-plastic blended composite material product. Background technique [0002] my country's forest resources are relatively scarce, but my country is also a big timber consumer, and the consumption of wood products has ranked among the top in the world. Statistics show that in 2002, China has become the world's third largest log and sawn timber consumer. The contradiction between the possession of timber resources and the rapid economic development has become increasingly prominent, and the import volume and import ratio are increasing year by year. The huge gap in the domestic timber market will exist for a long time. [0003] Wood-plastic blended composite material (hereinafter referred to as wood-plastic material) is a new type of material developed in recent years. It is a modified thermoplastic material filled and reinforced with wood fiber or plant fiber. It has the properties and characterist...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/00C08L25/06C08L27/06C08L35/04C08K7/14B29C47/38B29C48/395
CPCB29C47/0011B29C48/04
Inventor 宗宇后王猛
Owner 浙江诚信包装有限公司
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