Wood-plastic composite material and method of preparing the same

A wood-plastic composite material and a technology for composite materials, which are applied in the field of low-water absorption wood-plastic composite materials and their preparation, can solve the problems that wood-plastic profiles are difficult to use for a long time, plastic-steel profiles have poor wood feeling, and are not easy to decompose, etc. The effect of plant fiber content, reduction of molding shrinkage, and improvement of toughness and rigidity

Inactive Publication Date: 2009-02-18
HUANGSHAN HUASU NEW MATERIAL SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Plastic-steel profiles have a poor woody feel, while wood-plastic profiles have a strong woody feel. The water absorption rate is lower than wood-based panels, and the anti-corrosion effect is better than wood. However, ordinary wood-plastic profiles are difficult to use in water for a long time
How

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Get the raw material of following weight portion:

[0037] Recycle HDPE 100 parts

[0038] Bamboo powder 90 parts

[0039] Calcium carbonate 100 parts

[0040] 1.5 parts of silane coupling agent

[0041] Titanate coupling agent 1.2 parts

[0042] Polyethylene grafted maleic anhydride 6 parts

[0043] Polyethylene wax 3.5 parts

[0044] Ethylene bis stearic acid amide 7 parts

[0045] 4 parts calcium stearate

[0046] Antioxidant 1010 0.6 parts

[0047] Ultraviolet absorber UV531 0.6 parts

[0048] Concrete preparation is carried out according to the following steps:

[0049] a) CaCO 3 Raise the temperature to 90°C, add titanate coupling agent and mix for 4-5 minutes, discharge for later use.

[0050] b) Heat the bamboo powder to 100°C, add silane coupling agent and mix for 4-5 minutes; add the calcium carbonate prepared in step a, mix evenly; add the remaining raw materials in the formula, heat up to 130°C and discharge to cold mixing, Cold mix to 60°C and d...

Embodiment 2

[0056] Except that the proportioning of raw materials is the following parts by weight:

[0057] Recycle 100 copies of PP

[0058] Bamboo powder 95 parts

[0059] Talc powder 95 parts

[0060] 1.6 parts of silane coupling agent

[0061] Titanate coupling agent 1 part

[0062] 4 parts of polypropylene grafted maleic anhydride

[0063] Ethylene bis stearic acid amide 8 parts

[0064] 4 parts calcium stearate

[0065] 2 parts stearic acid

[0066] Antioxidant 1010 0.6 parts

[0067] Ultraviolet absorber UV531 0.6 parts

[0068] Outside, all the other are identical with embodiment 1.

Embodiment 3

[0070] Except that the proportioning of raw materials is the following parts by weight:

[0071] Recycle 50 copies of PE

[0072] Recycle 50 copies of PP

[0073]Bamboo powder 100 parts

[0074] Talcum powder 90 parts

[0075] 1.5 parts of silane coupling agent

[0076] Titanate coupling agent 1.5 parts

[0077] 3 parts polypropylene grafted maleic anhydride

[0078] Ethylene bis stearic acid amide 8 parts

[0079] 3 parts stearic acid

[0080] Antioxidant 1010 0.6 parts

[0081] Ultraviolet absorber UV531 0.6 parts

[0082] Outside, all the other are identical with embodiment 1.

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PUM

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Abstract

The invention discloses a wood-plastic composite material and a preparation method thereof. The composite material includes the following materials by the weight portion: 100 portions of reclaimed plastic particles, 80-100 portions of bamboo powder, 80-100 portions of inorganic filler, 1-2.5 portions of titanic acid ester, 1-5 portions of compatibilizing agent, 8-10 portions of lubricant and 1-2 portions of functional auxiliary agent. Compared with the prior art, the invention integrates the advantages of inorganic filler and bamboo fiber, reduces the dosage of vegetable fiber in the traditional wood-plastic formula, and increases the dosage of inorganic filler; the composite material prepared by the method has higher toughness and rigidity, lower water absorption rate and smaller molding shrinkage; and the pollution of waste plastics and vegetable fibers to the environment is reduced.

Description

technical field [0001] The invention belongs to a wood-plastic composite material and a preparation method thereof, in particular to a wood-plastic composite material with a low water absorption rate and a preparation method thereof. Background technique [0002] Plastic-steel profiles have a poor woody feel, while wood-plastic profiles have a strong woody feel. The water absorption rate is lower than that of wood-based panels, and the anti-corrosion effect is better than that of wood. However, ordinary wood-plastic profiles are difficult to use in water for a long time. However, a large amount of waste plastics and plant fibers are produced in our country every year. Since plastics are high molecular substances, they are not easy to decompose and produce toxic substances when decomposed. The burning of waste plant fibers will cause air pollution and environmental pollution. Contents of the invention [0003] The first technical problem to be solved by the present inventio...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L97/02C08L51/06C08L23/08C08K13/06C08K9/06B29B7/00B29B9/06B29C47/00B29C47/40B29C47/82B29K311/14B29C48/40
CPCB29C48/40
Inventor 方玉林姚俊巴旭民王宾
Owner HUANGSHAN HUASU NEW MATERIAL SCI & TECH CO LTD
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