Wood powder filled polypropylene and polyethylene composite material and preparation method for same

A technology of polypropylene and polyethylene, which is applied in the field of polymer materials, can solve the problems of inseparability, waste of polypropylene and polyethylene, insufficient raw materials of composite materials, etc., and achieve the effect of avoiding environmental pollution and excellent comprehensive performance

Inactive Publication Date: 2012-07-25
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the enhancement of environmental protection awareness, a large number of waste plastic products are recycled. At present, there are many ways to use waste plastics. Among them, polyethylene and wood powder in recycled plastics are used to make furniture materials that can replace wood. Chinese patent application No. 201010288907 has just announced a kind of patent application for the composite material of wood flour filled polypropylene applied by the applicant, the applicant has put this product on the market, and this material has caused better effect on the market, but currently on the market There are not many pure polypropylene recycled materials, therefore, the raw materials of wood flour filled polypropylene composites are not sufficient
At present, there are a lot of recycled materials for polypropylene and polyethylene mixtures, and they cannot be separated, and there is no wood flour-filled polypropylene and polyethylene mixture products on the market. The recovered polypropylene and polyethylene will have a large impact. part wasted

Method used

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  • Wood powder filled polypropylene and polyethylene composite material and preparation method for same
  • Wood powder filled polypropylene and polyethylene composite material and preparation method for same
  • Wood powder filled polypropylene and polyethylene composite material and preparation method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] According to the mass percentage content, 25% of PP and PE composite recycled materials (melt flow rate 18g / 10min), wood powder 65%, compatibilizer maleic anhydride grafted polyethylene 5%, dispersant (mass ratio MA4351: MA4352 =1:1) 2%, coupling agent 1.5%, antioxidant 1.5%.

[0026] Stir the wood flour and coupling agent on a high-speed mixer for 5-10 minutes, control the stirring temperature at 90-110°C, and complete the activation treatment on the surface of the wood flour;

[0027] Put the mixture of polypropylene and polyethylene and the polymer compatibilizer into the surface-activated wood powder, put the mixed material into medium-high speed and stir for 3-5 minutes, and control the stirring temperature at 70-80°C.

[0028] Put the dispersant and antioxidant into the above mixed material and stir at high speed for 3 to 5 minutes, and control the stirring temperature between 70-90°C;

[0029] Add the above mixed materials into the twin-screw extruder, and granu...

Embodiment 2

[0032] PP and PE composite regenerated material (melt flow rate 18g / 10min) 25%, wood flour 65%, compatibilizer maleic anhydride grafted ethylene-vinyl acetate copolymer 5%, dispersant (mass) Ratio MA4351:MA4352=1:1) 2%, coupling agent 1.5%, antioxidant 1.5% and mix uniformly in a high-speed mixer. The mixed materials are put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated into alloy materials.

Embodiment 3

[0034] According to the mass percentage, PP and PE composite recycled materials (melt flow rate 18g / 10min) 25%, wood powder 65%, compatibilizer wood-plastic compatibilizer PF-6085%, dispersant (mass ratio MA4351:MA4352 =1:1) 2%, coupling agent 1.5%, and antioxidant 1.5% were mixed uniformly in a high-speed mixer. The mixed materials are put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated into alloy materials.

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Abstract

The invention discloses a wood powder filled polypropylene and polyethylene composite material and a preparation method for the same. Components of the composite material comprise, by mass, 20-30% of polypropylene and polyethylene mixed resins, 60-70% of wood powder, 3-7% of polymeric compatibilizer, 1-2% of dispersing agent, 1-2% of coupling agent and 1-2% of antioxidant, wherein the polypropylene and polyethylene mixed resins refer to high-flowability mixed reclaimed materials reclaimed on the market and has the melt flow rate higher than 15g/10min, the wood powder refers to wood materials reclaimed on the market, and the grain size of the wood powder ranges from 80 meshes to 100 meshes. By the aid of the composite material and the preparation method, waste plastics and wood can be reclaimed, so that a great number of wood chips and the mixed PP (polypropylene) and PE (polyethylene) reclaimed materials are consumed, and environmental pollution is avoided. Besides, the wood powder filled polypropylene and polyethylene composite material is excellent in comprehensive performance, and has the advantages of plastics and wood.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a composite material of wood powder filled polypropylene and polyethylene and a preparation method thereof. Background technique [0002] With the enhancement of environmental protection awareness, a large number of waste plastic products are recycled. At present, there are many ways to use waste plastics. Among them, polyethylene and wood powder in recycled plastics are used to make furniture materials that can replace wood. Chinese patent application No. 201010288907 has just announced a kind of patent application for the composite material of wood flour filled polypropylene applied by the applicant, the applicant has put this product on the market, and this material has caused better effect on the market, but currently on the market There are not many pure polypropylene recycled materials, so the raw materials for wood flour-filled polypropylene composites are not sufficient. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/12C08L23/06C08L51/06C08L51/00C08L91/06B29C47/92B29B9/06B29C48/92
CPCB29C48/40B29C48/875B29C48/92B29C2948/92514B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 徐东徐永韩静
Owner SHENZHEN KEJU NEW MATERIAL
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