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Completely degraded plant powder modified thermoplastics composite material and preparation method thereof

A wood-plastic composite material, completely degradable technology, applied in the field of wood-plastic composite material and its preparation, can solve the problems of difficult decomposition, environmental pollution, difficult degradation, etc., and achieves low cost, good dimensional stability, and easy molding. Effect

Active Publication Date: 2012-09-05
GUANGDONG KINGFA TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing wood-plastic composite materials mainly use common thermoplastic resins as the main materials, such as polyethylene, polypropylene, modified polyvinyl chloride, modified polystyrene and other general-purpose resins. These resins are refractory materials. After being discarded, it is difficult to decompose or not decompose. The use of these resins in large quantities will pollute the environment.

Method used

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  • Completely degraded plant powder modified thermoplastics composite material and preparation method thereof
  • Completely degraded plant powder modified thermoplastics composite material and preparation method thereof
  • Completely degraded plant powder modified thermoplastics composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The raw material components are calculated in parts by weight:

[0030]

[0031] Plant powder needs to be dried in an oven at 120°C for 5 hours before use, and the moisture content should be controlled below 1%. First, the plant powder is treated with a dispersant in a high-speed mixer, and then other components are added to mix evenly. Add it into an extruder to extrude and granulate, and the processing temperature is controlled at 150°C to obtain a completely degraded plant powder modified thermoplastic wood-plastic composite material.

[0032] The tested properties of the above-mentioned wood-plastic composite materials are as follows:

[0033]

Embodiment 2

[0035] The raw material components are calculated in parts by weight:

[0036]

[0037]

[0038] Plant powder needs to be dried in an oven at 120°C for 6 hours before use, and the moisture content should be controlled below 1%. First, the plant powder is treated with a dispersant in a high-mixer, and then other components are added to mix evenly. Add it into an extruder to extrude and granulate, and the processing temperature is controlled at 190°C to obtain a completely degraded plant powder modified thermoplastic wood-plastic composite material.

[0039] The tested properties of the above-mentioned wood-plastic composite materials are as follows:

[0040]

Embodiment 3

[0042] The raw material components are calculated in parts by weight:

[0043]

[0044]

[0045] Plant powder needs to be dried in an oven at 120°C for 7 hours before use, and the moisture content should be controlled below 1%. First, the plant powder is treated with a dispersant in a high-mixer, and then other components are added to mix evenly. Add it into an extruder to extrude and granulate, and the processing temperature is controlled at 170° C. to obtain a completely degraded plant powder modified thermoplastic wood-plastic composite material.

[0046] The tested properties of the above-mentioned wood-plastic composite materials are as follows:

[0047]

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Abstract

The invention discloses a completely degraded plant powder modified thermoplastics composite material and preparation method thereof, which consists of the components with the weight portions as follows: 100 portions of degradable thermoplastics resin, 1-400 portions of plant powder, 0.1-40 portions of dispersing agent, 0.5-60 portions of impact modifier, 0-40 portions of inorganic filler as wellas 0.1-10 portions of stabilizing agent. The degraded thermoplastics resin has similar physiochemical performances with universal polyethylene and polypropylene, has excellent processing performances, and can be commixed with plant powder to prepare thermoplastics wood plastic composite materials. The obtained thermoplastics wood plastic composite materials can be completely degraded into carbon dioxide and water in natural environment under the effects of broadly existed microbes like germs, actinomycetes, etc. Compared with wood products, the composite material has the characteristics of good durability and dimensional stability, easy forming, small water absorbability, and corrosion resistance; compared with plastic, the composite material has the characteristics of low cost and high rigidity. The completely degraded plant powder modified thermoplastics composite material can be used for producing the shells of electric apparatuses like TV, sound, copier, printer, etc, and can alsobe applied on other workpieces used for injection.

Description

technical field [0001] The invention relates to a wood-plastic composite material and its preparation technology. Background technique [0002] Wood-plastic composite material is a new type of composite material that uses plant powder and thermoplastics as the main raw materials, adds a certain amount of additives, and is processed by mixing and extruding machines. The material can alleviate the amount of oil used, and at the same time, a large amount of waste wood powder is used. The development of this material can not only alleviate the consumption of oil resources in modern society, but also reduce the consumption of wood resources. It is an effective means to protect the environment and reduce energy consumption. Compared with wood, wood-plastic composite materials are durable, good dimensional stability, easy to shape, low water absorption, and corrosion resistance; compared with plastics, they have the characteristics of low cost and high rigidity. [0003] The plant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L101/16C08L97/02C08K5/00C08L67/00C08L29/04C08L3/02C08L1/12
Inventor 刘建中薄文海王林付锦峰
Owner GUANGDONG KINGFA TECH CO LTD
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