CN102924948A - Injection molding wood-plastic material - Google Patents
Injection molding wood-plastic material Download PDFInfo
- Publication number
- CN102924948A CN102924948A CN2012104885950A CN201210488595A CN102924948A CN 102924948 A CN102924948 A CN 102924948A CN 2012104885950 A CN2012104885950 A CN 2012104885950A CN 201210488595 A CN201210488595 A CN 201210488595A CN 102924948 A CN102924948 A CN 102924948A
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- China
- Prior art keywords
- wood
- plastic material
- straw powder
- injection molding
- polypropylene
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Abstract
The invention relates to an injection molding wood-plastic material which consists of the following components in percentage by weight: 20-45% of polypropylene, 50-70% of crop straw powder, 0.2-2.0% of lubricant, 3-15% of toughening agent, 1.0-8.0 of coupling agent, 1.0-5.0% of moisture absorbent and 0.1-5.5% of other auxiliaries. According to the straw powder and polypropylene compounded wood-plastic material for injection molding provided by the invention, on the basis of keeping the comprehensive mechanical performance well, the proportion of the crop straw powder is much higher than 50%; the material can be applied to the injection molding of a product with a complicated structure and a large area; the product has a beautiful appearance, natural smell of wood and high strength, and enables color matching according to the requirement; meanwhile, the wood-plastic material is low in cost, simple to process, low-carbon and economical, and has low and uniform shrinkage; and the production purchasing is convenient, and the competitiveness is improved.
Description
Technical field
The present invention relates to a kind of polymer composite, more particularly, relate to a kind of injection moulding Wood-plastic material.The invention still further relates to the method that Wood-plastic material is used in this injection moulding of making.
Background technology
Wood-plastic material in the market is to adopt wood powder or xylon and plastics compound mostly, the lumbering deforestation there is a kind of pushing effect, and because material flowability is bad, generally is not used in injection moulding, only only limit to extrude some products relatively simple in structure, that intensity is not high.
The country that has abroad, the wood plastic product more than 50% that the wood powder ratio accounts for overall proportion just can be as being that woodwork is sold society.
The invention solves the problem of material flowability, solved material strength problem, simultaneously, agricultural crop straw powder proportion is far above 50%, with the goods that material of the present invention is can injection structure complicated, area is large, and product appearance is attractive in appearance, has the natural breath of timber, and intensity is high, can match colors on request, simultaneously with low cost, process easyly, meet the low-carbon economy characteristic.Be used for injection moulding and produce some shell classes, landscape ornamental class, daily necessities product, substituted for plastic material and timber have good meaning, and material cost and tooling cost are all obviously cheap, save cost, can use common injection moulding machine and mould, be convenient to batch production, promote.
Summary of the invention
The object of the invention is to, a kind of injection moulding Wood-plastic material is provided, and on the good basis of comprehensive mechanical performance maintenance, agricultural crop straw powder proportion is far above 50%, with the goods that material of the present invention is can injection structure complicated, area is large, and product appearance is attractive in appearance, and intensity is high, can match colors as requested, process easy, meet low-carbon (LC), economic characteristics, shrinking percentage is little and even.
Technical scheme provided by the invention is as follows: polypropylene: 20-45%; Agricultural crop straw powder: 50-70%; Lubricant: 0.2-2.0%; Toughner: 3-15%; Coupling agent: 1.0-8.0%; Moisture adsorbent: 1.0-5.0%; Other auxiliary agents: 0.1-5.5%.
The injection moulding of the present invention preparation method of the Wood-plastic material of straw powder and polypropylene composite materials, comprise the steps: first polypropylene, agricultural crop straw powder, lubricant, toughner, coupling agent, moisture adsorbent, other auxiliary agents low speed mixing 10 minutes in the mixer again after the weighing proportionally, again through twin screw extruder slow speed of revolution mixing extrusion in the screw combinations situation that some strength is sheared, water ring or underwater cutpellet make the Wood-plastic material that straw powder and polypropylene composite materials are used in injection moulding through screening and dewatering.
The injection moulding of the present invention Wood-plastic material of straw powder and polypropylene composite materials, on the good basis of comprehensive mechanical performance maintenance, agricultural crop straw powder proportion is far above 50%, with the goods that material of the present invention is can injection structure complicated, area is large, and product appearance is attractive in appearance, has the natural breath of timber, intensity is high, can match colors on request, and is simultaneously with low cost, process easy, meet low-carbon (LC), economic characteristics, shrinking percentage is little and even, production procurement is convenient, has improved competitive power.
Embodiment
Below be the most preferred embodiment that the Wood-plastic material of straw powder and polypropylene composite materials is used in injection moulding of the present invention, therefore do not limit protection scope of the present invention.
Embodiment one, and the Wood-plastic material of a kind of injection moulding with straw powder and polypropylene composite materials is provided, and is comprised of by weight following composition; Polypropylene: 27.5%; Agricultural crop straw powder: 57%; Lubricant: 1.0%; Toughner: 5.0%; Coupling agent: 5.0%; Moisture adsorbent: 3.0%; Other auxiliary agents: 1.5%.
First with polypropylene, agricultural crop straw powder, lubricant, toughner, coupling agent, moisture adsorbent, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, mixer adopts low speed mixing, paddle should with the barrel gap less than 0.5 centimetre, the supplementary material mixed effect should visual various particles and powder substantially even, do not have obvious agglomerate or gather; Twin screw extruder uses 32 length-to-diameter ratios, the combination of prescribed strength shear screw, and setting is not higher than 300 rev/mins rotating speed; Adopt the underwater cutpellet mode, namely make the Wood-plastic material that straw powder and polypropylene composite materials are used in injection moulding through screening and dewatering.
The above; it only is the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (2)
1. injection moulding Wood-plastic material, its characteristic is, is made of by weight polypropylene following composition: 20-45%; Agricultural crop straw powder: 50-70%; Lubricant: 0.2-2.0%; Toughner: 3-15%; Coupling agent 1.0-8.0%; Moisture adsorbent: 1.0-5.0%; Other auxiliary agents: 0.1-5.5%.
2. an injection moulding is with the preparation method of Wood-plastic material, it is characterized in that, comprise the steps: first with polypropylene, agricultural crop straw powder, lubricant, toughner, coupling agent, moisture adsorbent, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, again through twin screw extruder slow speed of revolution mixing extrusion in the screw combinations situation that some strength is sheared, water ring or underwater cutpellet make the Wood-plastic material that straw powder and polypropylene composite materials are used in injection moulding through screening and dewatering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104885950A CN102924948A (en) | 2012-11-26 | 2012-11-26 | Injection molding wood-plastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104885950A CN102924948A (en) | 2012-11-26 | 2012-11-26 | Injection molding wood-plastic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102924948A true CN102924948A (en) | 2013-02-13 |
Family
ID=47639886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104885950A Pending CN102924948A (en) | 2012-11-26 | 2012-11-26 | Injection molding wood-plastic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102924948A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773045A (en) * | 2013-01-23 | 2014-05-07 | 科创聚合物(苏州)有限公司 | Straw powder and polypropylene compounded wood-plastic material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982505A (en) * | 2010-11-02 | 2011-03-02 | 苏州市科创聚合物有限公司 | Special injection grade wood-plastic material for pallets |
-
2012
- 2012-11-26 CN CN2012104885950A patent/CN102924948A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982505A (en) * | 2010-11-02 | 2011-03-02 | 苏州市科创聚合物有限公司 | Special injection grade wood-plastic material for pallets |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773045A (en) * | 2013-01-23 | 2014-05-07 | 科创聚合物(苏州)有限公司 | Straw powder and polypropylene compounded wood-plastic material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |