Content-removed rubber wood powder/high-density polyethylene composite material and preparation method thereof

A high-density polyethylene and composite material technology, used in wood processing tools, manufacturing tools, etc., can solve the problems of being susceptible to fungi and insects, high carbohydrate content, and reduced service life, and achieve market competitiveness enhancement, Improve mildew resistance and corrosion resistance

Inactive Publication Date: 2019-02-19
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If rubber wood powder is directly used as raw material to prepare wood-plastic composite materials, because the content of rubber wood is rich in nutrients such as carbohydrates and proteins, the content of carbohydrates is high, and there is a lack of phenolic compounds that can inhibit biological factors, so the prepared Rubber wood-based wood-plastic composites are vulnerable to fungi and insects, which reduces its service life and limits its application fields

Method used

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  • Content-removed rubber wood powder/high-density polyethylene composite material and preparation method thereof
  • Content-removed rubber wood powder/high-density polyethylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Rubber wood powder pretreatment: choose rubber wood powder with a mesh number of 60, dry the wood powder at 103°C, and use deionized water as the extraction solvent to extract the rubber wood powder by Soxhlet extraction for 20 hours, the extraction temperature is 100°C, and after the extraction is completed, dry to a moisture content of 2-5% for later use;

[0033] (2) Mixed material: Add 60 parts of dried rubber wood powder and 40 parts of HDPE plastic by weight into a high-speed mixer with a rotation speed of 400r / min for mixing. After mixing evenly, add by weight 22 parts of processing aids (5 parts of zinc stearate, 10 parts of dioctyl terephthalate (DOTP), 7 parts of coupling agent maleic anhydride grafted polyethylene (MAPE), then mixed for 10 min, and the mixing temperature was 50°C, after mixing evenly, let the material stand to room temperature.

[0034] (3) Extrusion molding: the uniformly mixed material is granulated with a granulator, and then the pell...

Embodiment 2

[0036] (1) Rubber wood powder pretreatment: choose rubber wood powder with a mesh number of 100 mesh, dry the wood powder at 103°C, and use methanol as the extraction solvent to extract the rubber wood powder for 20 hours by Soxhlet extraction , the extraction temperature is 65°C, and after the extraction is completed, it is dried to a moisture content of 2-5% for later use;

[0037] (2) Mixed material: Add 50 parts of dried rubber wood powder and 50 parts of HDPE plastic by weight into a high-speed mixer with a speed of 400r / min for uniform mixing, and then add by weight for processing Auxiliaries (4 parts of zinc stearate, 10 parts of dioctyl terephthalate (DOTP), 5 parts of coupling agent maleic anhydride grafted polyethylene (MAPE), and then mixed for 10 minutes, the mixing temperature was 50 ° C, After mixing evenly, let the material stand to room temperature.

[0038] (3) Extrusion molding: the uniformly mixed material is granulated with a granulator, and then the pelle...

Embodiment 3

[0040] (1) Pretreatment of rubber wood powder: choose rubber wood powder with a mesh number of 80, dry the wood powder at 103°C, and use benzene-ethanol as the extraction solvent to extract the rubber wood powder by Soxhlet extraction for 20 hours, the extraction temperature is 69°C, and after the extraction is completed, dry to a moisture content of 2 to 5% for later use;

[0041] (2) Mixed material: 40 parts of dried rubber wood powder and 60 parts of HDPE plastics are measured according to the formula and added to a high-speed mixer with a speed of 400r / min for mixing. After mixing evenly, add by weight Processing aid (3 parts of zinc stearate, 10 parts of dioctyl phthalate (DOTP), 3 parts of coupling agent maleic anhydride grafted polyethylene (MAPE)), then mixed for 10 min, the mixing temperature was 50°C, after mixing evenly, let the material stand to room temperature.

[0042] (3) Extrusion molding: the uniformly mixed material is granulated with a granulator, and then t...

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Abstract

The invention discloses a content-removed rubber wood powder/high-density polyethylene composite material and a preparation method thereof. The preparation method includes: subjecting rubber wood powder to content-removed pretreatment to obtain content-removed rubber wood powder, well mixing the content-removed rubber wood powder, high-density polyethylene and aid, utilizing a granulator to granulate mixed materials, and shaping to obtain the composite material. The composite material is high in impact-resistant strength and bending strength, small in water-absorbing change rate and good in woody sense, has better mildew-proof and corrosion-resistant performance when compared with wood-plastic composite materials prepared from content-maintained rubber wood powder and can be widely appliedin the field of outdoors, bathrooms, kitchen and balconies.

Description

technical field [0001] The invention relates to a rubber wood-based wood-plastic composite material and a preparation method thereof. More specifically, the present invention relates to a rubber wood flour / high-density polyethylene composite material without inclusions and a preparation method thereof. Background technique [0002] Wood-plastic composite materials are a type of composite materials obtained by blending and extruding plant fibers, plastics and other processing aids. Wood-plastic composite materials have many excellent properties such as: low price, good dimensional stability, can solve the problem of environmental pollution caused by waste plastics that cannot be recycled, and can also solve the problem of underutilization of waste fiber resources. At present, wood-plastic composite materials have been used in fields such as building templates, packaging materials, wall panels and floors. [0003] If rubber wood powder is directly used as raw material to pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/06B27M1/00
CPCB27M1/00C08L23/06C08L97/02C08L2207/062
Inventor 关丽涛王姿轮涂登云胡传双古今章伟伟云虹
Owner SOUTH CHINA AGRI UNIV
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