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Improved wood-plastic composite material and preparation method thereof

A technology of wood-plastic composite materials and thermoplastics, applied in the field of improved wood-plastic composite materials and their preparation, can solve the problems of unsatisfactory improvement effects, etc., and achieve the effects of performance improvement, good crystallization, and stable quality

Inactive Publication Date: 2011-11-23
CHANGZHOU VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its improvement effect is still not very satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 prepares improved wood-plastic composite material

[0027] The specific operation is as follows:

[0028] ①According to 58 parts by mass of thermoplastic new high-density polyethylene, 30 parts by mass of plant fiber powder wood powder (80 mesh), 10 parts by mass of natural vermiculite powder (200 mesh) without expansion of vermiculite powder, interface modifier maleic anhydride Branch polyethylene 2 mass parts prepare each component, standby;

[0029] ② Premix

[0030] Add the components prepared in step ① into the high-speed mixer, and mix at 60°C for 20 minutes to obtain the premix;

[0031] ③ Plasticization

[0032] Add the premix obtained in step ② into a twin-screw extruder, melt and blend at 160-190°C for 3 minutes to obtain a plasticized material;

[0033] ④ Granulation

[0034] After the plasticized material obtained in step ③ is cooled by a strap and water, it is pelletized by a plastic pelletizer, and an improved wood-plastic composite mater...

Embodiment 2

[0043] Embodiment 2 prepares improved wood-plastic composite material

[0044] It is basically the same as Example 1, except that low-density polyethylene is used to replace high-density polyethylene as the thermoplastic.

Embodiment 3

[0045] Embodiment 3 prepares improved wood-plastic composite material

[0046] It is basically the same as Example 1, except that linear low-density polyethylene is used to replace high-density polyethylene as the thermoplastic.

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PUM

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Abstract

The invention relates to an improved wood-plastic composite material and a preparation method thereof. The improved wood-plastic composite material consists of the following components in part by mass: 30 to 80 parts of thermoplastic plastics, 30 to 70 parts of plant fiber powder, 5 to 30 parts of vermiculite powder, and 2 to 10 parts of interface modifying agent, wherein the vermiculite powder is non-expanded natural vermiculite powder and has the fineness of 100 to 500 meshes; and the thermoplastic plastics are new thermoplastic plastics or waste thermoplastic plastics. The components are premixed, plasticized and granulated to form the improved wood-plastic composite material. The vermiculite powder has the function of a common filler, and also can obviously improve the toughness, strength and rigidity of the wood-plastic composite material, so that the application range of the wood-plastic composite material is widened. The product is low in cost and meets the environmental protection requirement.

Description

technical field [0001] The invention relates to an improved wood-plastic composite material and a preparation method thereof. Background technique [0002] Using plastic instead of wood, especially waste plastic and waste plants as raw materials, to prepare wood-plastic composite materials to replace wood is an important way to solve environmental problems and wood shortages. Wood-plastic composite materials can make full use of low-value resources to produce high value-added products, and can find the best performance position for our resources such as manpower, capital, and raw materials. In the previous preparation process of wood-plastic composite materials, calcium carbonate, talcum powder, kaolin and other mineral fillers are usually added to improve the modulus, dimensional stability and heat resistance of wood-plastic composite materials. However, its improvement effect is still not very satisfactory. Contents of the invention [0003] The first object of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08L97/02C08K13/02C08K3/34C08L23/06C08L23/08C08L27/06C08L25/06C08L23/12B29C47/92B29C48/92
Inventor 马立波张枝苗高炜斌王自瑛徐亮成徐永红侯文顺
Owner CHANGZHOU VOCATIONAL INST OF ENG
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