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Preparation method of high-strength wood-plastic composite section bar

A composite profile and high-strength technology, which is applied in the preparation of wood-plastic composite profiles and high-strength wood-plastic composite profiles, can solve the problems of low strength of wood-plastic floors, improve assembly efficiency, save production costs, and improve bending The effect of destruction

Inactive Publication Date: 2014-04-09
HUANGSHAN MEISEN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method of high-strength wood-plastic composite profiles, which solves the problem of low strength of existing wood-plastic flooring, further improves the processing performance and mechanical properties of wood-plastic composite products, and improves the existing wood-plastic flooring. Bending failure load and flexural modulus of floor

Method used

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  • Preparation method of high-strength wood-plastic composite section bar
  • Preparation method of high-strength wood-plastic composite section bar

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preparation example Construction

[0026] A method for preparing high-strength wood-plastic composite profiles, using wood powder or bamboo powder as the main material, the particle size of the wood powder or bamboo powder is 80-100 mesh, and it includes the following steps:

[0027] The first step is to add auxiliary materials to the main material to form a material. The material components include: 100-150 parts of wood powder or bamboo powder, 100 parts of polyolefin resin, 5-15 parts of filler, 5 parts of coupling agent ~10 parts, lubricant 10~15 parts. The following optional components can also be added to the material, 1-5 parts of anti-aging agent, 3-5 parts of antibacterial agent, and 1-10 parts of coloring agent.

[0028] The polyolefin resin is one or a combination of PE and PP. In order to further recycle waste plastics and promote recycling of resources, the polyolefin resin can also be recycled PE plastics (PE containing a small amount of PP) or recycled PP plastics.

[0029] The filler is a comb...

Embodiment 1

[0038] Please also refer to Figures 1 to 2 , 100 parts of wood powder (80 mesh), 100 parts of PE plastic, 5 parts of filler, 5 parts of coupling agent, 10 parts of lubricant, 1 part of anti-aging agent, 3 parts of antibacterial agent, 1 part of coloring agent is put into a high-speed mixer for mixing, and then the mixing speed is set to 500 rpm, the mixing temperature is 60°C, and the mixing time is 12 minutes.

[0039]Next, the mixed materials were put into a parallel twin-screw granulator for granulation, the granulation temperature was set at 110° C., and the screw speed was set at 200 rpm.

[0040] Then the above-mentioned granulated material is extruded through a conical twin-screw extruder connected to a special die for round-hole profiles. The extrusion temperature is set at 130 ° C. After cooling and shaping, cutting, both sides are made with arc-shaped grooves. In the middle is a substrate with a circular hole structure. Finally, the surface of the above-mentioned ...

Embodiment 2

[0043] 120 parts of bamboo powder (100 mesh), 100 parts of PP plastic, 15 parts of filler, 10 parts of coupling agent, 15 parts of lubricant, 5 parts of anti-aging agent, 5 parts of antibacterial agent, 10 parts 1 part of coloring agent, put them into a high-speed mixer for mixing, and then set the mixing speed to 800 rpm, the mixing temperature to 100°C, and the mixing time to 10 minutes. Next, the mixed materials were put into a parallel twin-screw granulator for granulation, the granulation temperature was set at 200° C., and the screw speed was set at 300 rpm. Then the above-mentioned granulated material is extruded through a conical twin-screw extruder connected to a special die for round-hole profiles. The extrusion temperature is set at 180 ° C. After cooling and shaping, cutting, both sides are made with arc-shaped grooves. In the middle is a substrate with a circular hole structure. Finally, the surface of the above-mentioned substrate is polished, embossed or wire-d...

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Abstract

The invention discloses a preparation method of a high-strength wood-plastic composite section bar, which is processed and formed by taking wood powder or bamboo powder as a primary material and taking polyolefin resin, filler, a coupling agent and a lubricant as auxiliary materials through processes such as mixing, pelletizing and extruding. The method disclosed by the invention improves processing performance and mechanical performance of the wood-plastic composite section bar and improves bending fracture load and bending elasticity modulus of the wood-plastic floors; a product is good in stability, easy to install, free from cracks and warping defect, fireproof, waterproof, mothproof, sun-resistant, ageing-resistant, corrosion-resistant, free from formaldehyde, capable of being 100% recycled, and suitable for the fields such as outdoor landscape architecture and home decoration. Besides, various indexes of the high-strength wood-plastic composite section bar are higher than those in national standard GB / T24508-2009, wherein the bending fracture load is not less than 5000N, and the bending elasticity modulus is not less than 4000MPa.

Description

technical field [0001] The invention relates to a preparation method of a wood-plastic composite profile in the field of polymer materials, and more specifically relates to a preparation method of a high-strength wood-plastic composite profile. Background technique [0002] Wood-polymer Composites (WPC for short) is a new type of material made of wood fiber or plant fiber as the main component, which is combined with thermoplastic resin or other materials after pretreatment. This material can give full play to the advantages of each component in the material and overcome the shortcomings of a single material. It can not only improve the physical and mechanical properties and processing properties of the material, reduce costs and expand the application range, but also increase the added value of the material. Since the product is in a multiphase state of crystalline (wood fiber or plant fiber) and disordered state (resin), it has both the high strength and high elasticity of...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/06C08L23/12C08L51/06C08K13/02C08K3/34C08K3/26B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92761B29C2948/92895B29C2948/9298
Inventor 赵小亮盛岳金
Owner HUANGSHAN MEISEN NEW MATERIAL TECH
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