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Anti-aging plastic wood composite material and preparation method thereof

A wood-plastic composite material and anti-aging technology, applied in the field of composite materials, can solve the problems of high manufacturing cost of plastic wood, low anti-aging performance, environmental pollution of waste plastics, etc., to reduce usage, enhance surface aging resistance, improve The effect of service life

Inactive Publication Date: 2013-02-13
GEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an economical and practical anti-aging plastic-wood composite material and its preparation method to solve the problems of high manufacturing cost, low anti-aging performance and huge environmental pollution caused by waste plastics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Raw material components by weight

[0030] 29 parts of polyethylene (PE), 43 parts of wood flour, 3 parts of vinyl tris(methoxyethoxy) silane, 6 parts of PE grafted maleic anhydride, 15 parts of ammonium polyphosphate, 2 parts of zinc stearate, 2 parts of dioctyl phthalate, 0.5 parts of anti-aging agent filler (antioxidant 168) and 1.2 parts of coloring agent.

[0031] Add the above raw materials into a high-speed mixer until they are evenly mixed, and then react and extrude the mixed materials in a twin-screw extruder to make pellets. The melting temperature of the screw is 190°C and the speed is 180 rpm. The granulator cuts into granules to obtain pellets.

[0032] Put the obtained pellets into an extruder for extrusion molding to obtain the wood-plastic composite material of the present invention, and the bending strength of the obtained profile reaches 26MPa after testing.

Embodiment 2

[0034] Raw material components by weight

[0035] 30 parts of polypropylene (PP), 42 parts of wheat straw fiber powder, 4 parts of vinyltrimethoxysilane, 6 parts of PP grafted maleic anhydride, 14 parts of ammonium polyphosphate, 2 parts of zinc stearate, phthalic acid 3 parts of dibutyl ester, 1 part of anti-aging filler (antioxidant 168) and 1.2 parts of colorant.

[0036] Add the above-mentioned raw materials into a high-speed mixer until they are evenly mixed, and then react and extrude the mixed materials in a twin-screw extruder to make pellets. The granulator cuts into granules to obtain pellets.

[0037] Put the obtained pellets into an extruder for extrusion molding to obtain the wood-plastic composite material of the present invention, and the bending strength of the obtained profile reaches 51 MPa after testing.

Embodiment 3

[0039] Step 1. After sorting, crushing, cleaning and drying the recovered waste plastics, add them to the high-speed mixer and mix them well for later use. The mixing time is controlled within 5-10 minutes; if it is new plastics, directly mix them at high speed The machine is fully mixed and ready for use, and the mixing time is controlled at 5-10 minutes;

[0040] Step 2: In parts by weight, take 16 parts of plastics treated in step 1, 21 parts of wood flour and wheat straw powder mixture, 1.5 parts of hexamethyldisiloxane, 3 parts of PP grafted maleic anhydride, triphenyl phosphate 6.5 parts of ester, 1 part of sodium stearate, 0.25 part of dibutyl phthalate, 0.75 part of colorant titanium dioxide, 0.01 part of anti-aging filler (antioxidant DLTP), and fully mix in a high-speed mixer, The mixing time is controlled within 10-20 minutes;

[0041] Step 3: In parts by weight, take 16 parts of plastics treated in step 1, 21 parts of wood flour and wheat straw powder mixture, 1.5...

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Abstract

The invention relates to a composite material, and particularly relates to an anti-aging plastic wood composite material and a preparation method thereof. The anti-aging plastic wood composite material of the invention is characterized in that the composite material is prepared by the following raw materials by mass: 20%-35% of plastics, 20%-70% of natural wood fibers, 5%-45% of a fire retardant, 1%-10% of a compatibilizer, 0.1%-3% of a lubricant, 0.5%-3% of a plasticizer, 0.1%-2% of a anti-aging filling material, and 0.5%-3% of a coloring agent. According to the invention, the reinforcing anti-aging filling material is added into the plastic wood composite material, which provides the plastic wood profile with both general functions and superpower anti-aging performance, effectively enhances the surface anti-aging performance of the plastic wood profile, and improves the service life of the plastic wood product.

Description

technical field [0001] The invention relates to composite materials, in particular to an anti-aging plastic-wood composite material and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a new type of environmentally friendly composite material. It uses various waste natural wood fibers and plastics to compound, adds special additives, and extrudes a new type of environmentally friendly composite material that is both similar to wood and better than wood. . This material has the advantages of good dimensional stability, high specific strength, and repeated recycling, and has been widely used in indoor and outdoor construction, transportation, packaging and other fields. [0003] It is precisely because of the many advantages of wood-plastic composite materials that the market has grown rapidly, and the rapidly expanding market has put forward higher performance requirements for wider applications of wood-plastic composite material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/06C08L23/12C08L27/06C08L25/06C08L55/02C08L69/00C08K13/02B29B9/06B29C47/92B29C48/92
Inventor 闫梨张翔程青民黄旭江
Owner GEM CO LTD
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