Wood-plastic composite material and preparation method thereof

A wood-plastic composite material and plastic resin technology, applied in the field of composite materials, can solve the problems that the toughness and heat resistance of wood-plastic composite materials are difficult to meet actual needs, and achieve excellent Izod notched impact strength, excellent heat resistance, excellent The effect of toughness

Inactive Publication Date: 2015-04-29
WUHU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although wood-plastic composite materials have been developed for a certain period of time, they still have the followin

Method used

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preparation example Construction

[0018] The present invention also provides a preparation method of wood-plastic composite material, the preparation method comprising:

[0019] a, mixing plastic resin, plant fiber, compatibilizer, lubricant and filler to prepare a mixture;

[0020] b. extruding the mixture to obtain a wood-plastic composite material;

[0021] Among them, the compatibilizer is selected from ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, chlorinated polyethylene, cumene peroxide, aluminate, titanate compounds, silane coupling agent, maleic anhydride modified One or more of non-toxic polypropylene; relative to 100 parts by weight of plastic resin, the amount of wood powder is 300-350 parts by weight, the amount of compatibilizer is 2-15 parts by weight, and the amount of lubricant is 2 -6 parts by weight, the amount of filler is 10-20 parts by weight.

[0022] In the preparation method provided by the present invention, the specific type of plastic resin can be selected in ...

Embodiment 1

[0032] At 95°C, 320kg of wood powder, 100kg of plastic (the mass ratio of polyethylene, polypropylene and polyvinyl chloride is 1:1:1), 6kg of EVA, 2kg of EAA, 1.2kg of CPE, 2kg of stearic acid, and paraffin 2kg, 1kg of titanate coupling agent, 5kg of calcium carbonate and 10kg of fly ash were mixed for 5min, then in the ZSK-25 twin-screw extruder of German WP company (the head temperature of each section of the extruder was 130°C respectively) , 150°C, 160°C, 160°C, 160°C, 160°C, 160°C) to obtain wood-plastic composite material A1 by extrusion and granulation. The performance parameters of the wood-plastic composite material are shown in Table 1.

Embodiment 2

[0034] At 95°C, 300kg of wood powder, 100kg of plastic (the mass ratio of polyethylene, polypropylene and polyvinyl chloride is 1:1:1), 2kg of EVA, 2kg of stearic acid, 1kg of titanate coupling agent, Fly ash 5kg and calcium carbonate 5kg mix 5min, then in the ZSK-25 twin-screw extruder of German WP company (the head temperature of each section of extruder is respectively 130 ℃, 150 ℃, 160 ℃, 160 ℃, 160°C, 160°C, 160°C) to obtain wood-plastic composite material A2 by extrusion and granulation. The performance parameters of the wood-plastic composite material are shown in Table 1.

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Abstract

The invention discloses a wood-plastic composite material and a preparation method thereof. The wood-plastic composite material comprises the following components in parts by weight: 100 parts of plastic resin, 300-350 parts of wood flour, a proper amount of plant fibers, 2-15 parts of a compatilizer, 2-6 parts of a lubricant and 10-20 parts of a filler, wherein the compatilizer is selected from one or more of ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, chlorinated polyethylene, dicumyl peroxide, aluminate, a titanate compound, a silane coupling agent and maleic anhydride modified polypropylene. The wood-plastic composite material prepared with the method is excellent in toughness and heat resistance.

Description

technical field [0001] The invention relates to composite materials, in particular to a wood-plastic composite material and a preparation method thereof. Background technique [0002] Wood-plastic composites are composite materials made by blending plant fibers and plastic resins and then press molding. Wood-plastic composite materials are now widely used in packaging, construction and other industries. Compared with wood, they have the advantages of easy processing, high strength, anti-corrosion, insect-proof, moisture-proof, long service life and recyclable utilization. Although wood-plastic composite materials have been developed for a certain period of time, they still have the following disadvantages: the toughness and heat resistance of wood-plastic composite materials are difficult to meet actual needs. Contents of the invention [0003] The object of the present invention is to provide a wood-plastic composite material and a preparation method thereof. The wood-pl...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/06C08L23/12C08L27/06C08L23/08C08L23/28C08L91/06
Inventor 文霞王强
Owner WUHU INST OF TECH
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