Plastic-wood-metal composite structure material and method for producing the same

A technology of metal composite structure and metal components, which is applied in the direction of coating, etc., can solve the problems of compression resistance, poor bending strength, shortened service life, and low extrusion efficiency, so as to improve the bending strength, improve the utilization degree, reduce the Degradation effect

Inactive Publication Date: 2004-01-14
张书证 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wood-plastic composite materials made by the existing extrusion molding method have the following main defects: 1. Due to the strict requirements on the grade of waste plastics, it is difficult to process polyolefins with high molecular weight dispersion, so the existing extrusion molding process is not suitable for the required The raw materials are limited, so that the polyolefin raw materials used are limited to a relatively narrow range; 2. The extrusion efficiency is low, only 0.1 to 0.3 m / min, which will inevitably lead to a higher cost of the product; 3. The resulting product Poor compressive and bending strength
Due to the large difference between the thermal properties of metal materials and plastics in the composite process of structural materials, the product will inevitably cause brittle cracks due to stress after cooling, but neither of the above two patents discloses any Therefore, the prepared plastic-steel-plastic-wood-metal composite structural materials are prone to curling and cracking, so that the service life of the product is greatly shortened.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] a. Carry out drying pretreatment on the sawdust powder with a particle size of 80 mesh, and dry it for 10 minutes at a temperature of 80° C., and control the moisture content at 4% by weight;

[0070] b. After washing and breaking the polyethylene waste garbage bag, mix it with the material obtained in step a, and add ammonium chloride at the same time, wherein the weight ratio of polyethylene waste plastics and wood chips is 70:30;

[0071] c. Put the mixed material obtained in step b into a high-speed mixer for stirring. When the temperature rises to 90°C, add a monoalkoxypyrophosphate titanate coupling agent, an aluminum-titanium composite coupling agent, polyethylene Wax and HK light degreasing;

[0072] d. When the temperature rises to 120°C, put the material obtained in step c into a low mixer, cool at a temperature of 30°C, and add antioxidant 1010, light stabilizer-744, and crosslinking agent tert-butyl isopropyl peroxide Benzene, flame retardant triphenyl phos...

Embodiment 2

[0080] a. Carry out drying pretreatment with the plant stalk powder with a particle size of 150 mesh, dry for 50 minutes at a temperature of 60° C., and control the moisture content at 3% by weight;

[0081] B. mix polyethylene waste agricultural film fragments with the material obtained in step a, and add sodium bicarbonate simultaneously, wherein the weight ratio of polyethylene waste plastics and plant stem powder is 80:20;

[0082] c. Put the mixed material obtained in step b into a high-speed mixer for stirring. When the temperature rises to 95°C, add a chelating titanate coupling agent, an aluminum-titanium composite coupling agent, polyethylene wax, and cycloalkyl YT -10 mineral oil;

[0083] d. When the temperature rises to 140°C, put the material obtained in step c into a low-mixer, cool it at a temperature of 40°C, and add antioxidant 2246, auxiliary antioxidant 168, light and heat stabilizer 770, flame retardant Agent TPP, metal copper passivator N-salicyloyl-N'-ac...

Embodiment 3

[0091] a. The rice husk powder with a particle size of 200 mesh is subjected to drying pretreatment, at a temperature of 60° C., dried for 20 minutes, and the moisture is controlled at 7% by weight;

[0092] B. mixing the waste polypropylene packaging bag crushed material with the material obtained in step a, adding sodium acetate simultaneously, the weight ratio of the addition of polypropylene waste plastics and rice husk powder is 50:50;

[0093] c. Put the mixed material obtained in step b into a high mixer for stirring. When the temperature rises to 140°C, add a chelating titanate coupling agent, an aluminum-titanium composite coupling agent, polypropylene wax and cycloalkyl YT -10 mineral oil;

[0094] d. When the temperature rises to 160°C, put the material obtained in step c into the low mixer, cool it at a temperature of 60°C, and add antioxidant 1010, auxiliary antioxidant 618, nucleating agent EDBS, flame retardant Agent TPP, metal passivator DNP, particle size are...

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PUM

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Abstract

A structural plastics-wood-metal composition is prepared from waste or used thermoplastic plastics, reinforcing particles, metallic structural member and modifier. Its advantages are high compression strength and bending strength, and environmental friendlinezz.

Description

technical field [0001] The invention relates to a composite structural material, in particular to a plastic-wood-metal composite structural material and a production method thereof. Background technique [0002] Wood-plastic composite material is a new chemical material that has developed rapidly in recent years. In the world, due to the increasing shortage of forest resources, resulting in a large amount of water and soil loss, the supply of wood is becoming more and more scarce. Therefore, it is ideal to use plastic wood materials as a substitute for wood, and it has broad application prospects. The development of wood-plastic composite materials has led to a revolution in the application of new materials. It provides a comprehensive solution for alleviating the shortage of wood, effectively protecting forest resources, and eliminating the increasingly serious "white pollution". social and economic benefits. [0003] At present, as a new type of green environmental prote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/18B29C45/14B29C70/10B29C70/74
Inventor 张书证金绍培
Owner 张书证
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