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

A wood-plastic composite material, complete degradation technology, applied in the field of wood-plastic composite material and its preparation, can solve problems such as difficult to decompose, environmental pollution, non-decomposition, etc., achieve low cost, good dimensional stability, and small water absorption Effect

Active Publication Date: 2010-06-30
GUANGDONG KINGFA TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing wood-plastic composite materials mainly use ordinary thermoplastic resins as the main materials, such as general-purpose resins such as polyethylene, polypropylene, modified polyvinyl chloride, and modified polystyrene. These resins are refractory materials and are discarded after use. It is difficult to decompose or do not decompose, and the use of these resins in large quantities will pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0030] Polylactic acid with a melt index of 8 g / 10 minutes 100 parts

[0031] 100 mesh vegetable powder 5 parts

[0032] 0.5 parts of liquid paraffin

[0033] Dibutyl phthalate 0.2 parts

[0034] N, N'-bisethylene stearamide 0.2 parts

[0035] 1 part polycarbonate

[0036] Octadecylamine bromide 0.1 parts

[0037] 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-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.

[0038] The tested properties of the above-mentioned wood-plastic composite materials are as follows:

[0039] Specific gravity 1.24

[0...

Embodiment 2

[0047] The raw material components are calculated in parts by weight:

[0048] Polylactic acid with a melt index of 10 g / 10 minutes 100 parts

[0049] 60 servings of 100 mesh vegetable powder

[0050] 2 parts liquid paraffin

[0051] 1 part dibutyl phthalate

[0052] N, N'-bisethylene stearamide 2 parts

[0053] γ-glycidyloxypropyltrimethoxysilane 1 part

[0054] 10 parts polycarbonate

[0055] Octadecylamine bromide 0.4 parts

[0056] 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.

[0057] The tested properties of the above-mentioned wood-plastic composite materials ar...

Embodiment 3

[0066] The raw material components are calculated in parts by weight:

[0067] Melt index 15g / 10min polybutylene adipate terephthalate 100 parts

[0068] 100 mesh vegetable powder 300 parts

[0069] 5 parts liquid paraffin

[0070] 4 parts dibutyl phthalate

[0071] N, N'-bisethylene stearamide 5 parts

[0072] 5 parts of γ-glycidyloxypropyltrimethoxysilane

[0073] 30 parts polycarbonate

[0074] Octadecylamine bromide 0.4 parts

[0075] 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.

[0076] The tested properties of the above-mentioned wood-plastic composite mater...

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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 well as 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 also be 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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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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