CN101792609A - Formula and preparation method of polyethylene based wood-plastic composite material - Google Patents
Formula and preparation method of polyethylene based wood-plastic composite material Download PDFInfo
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- CN101792609A CN101792609A CN200910018693A CN200910018693A CN101792609A CN 101792609 A CN101792609 A CN 101792609A CN 200910018693 A CN200910018693 A CN 200910018693A CN 200910018693 A CN200910018693 A CN 200910018693A CN 101792609 A CN101792609 A CN 101792609A
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Abstract
The invention relates to a formula and a preparation method of a polyethylene based wood-plastic composite material. The method comprises the following steps of: adding raw materials prepared according to the formula such as waste polyethylene granules, wood flour maleic acid grafting PE, carboxyl ternary ethylene propylene rubber and other aids into a high-speed mixer, and stirring the raw materials for 15 to 20 minutes, wherein the stirring time is 15 to 20 minutes, and the mixing temperature is between 80 and 90 DEG C; adding the mixed raw materials into an extruding machine to perform extrusion, wherein the rotating speed of a main engine of the extruding machine is 40 to 60 revolutions per minute, and the rotating speed of a feeding machine is 4 to 6 revolutions per minute; and performing shaping after the extrusion. The polyethylene raw material adopted by the formula and the method is waste polyethylene, and the wood flour is worthless poplar wood flour, miscellaneous tree powder or crop straw powder, and is low in price, saves energy sources and protects the environment.
Description
Technical field
The present invention relates to the preparation prescription and the method for a kind of polyethylene (PE) base wood-plastic composite material, the matrix material that makes can be used for doing floor, guardrail, wayside pavilion, chair, finishing material etc.The invention belongs to technical field of polymer processing.
Background technology
Wood plastic composite is to be main raw material with the thermoplastics, has added wood powder, bamboo powder, shell powder, straw powder, bran powder or peanut hull meal, a kind of advanced composite material for preparing through hybrid process.Succeeding in developing of this material; the growing resource of bringing and the energy shortage problem of petroleum resources and timber and Forest products demand have been alleviated; it is the effective means of protection environment and save energy; and wood plastic composite is durable in addition,, easy-formation better than wood dimensional stability, water-absorbent is little, corrosion-resistant and characteristics such as recyclable utilization again, therefore becomes the focus of material area research.
Polyethylene (PE) is the kind of output maximum in the general-purpose plastics, and therefore, the exploitation polyethylene based wood-plastic composite material is imperative.At present, most of wood plastic composite is base-material production with the vinyon, as the CN200810034004.6 patent.Because the polythene material major part of using in the wood plastic composite is a second stage employ, so every performance all descends to some extent, though handle through grafting, still the inherent winter hardiness of existence own is poor, shock strength is low, nonpolar, not hydrophilic shortcoming; Simultaneously again because of having filled a large amount of wood powders or fibrous material in the matrix material, make the polyethylene based wood-plastic composite material embrittlement, be difficult to moulding.
Summary of the invention
The purpose of this invention is to provide a kind of polyethylene is base-material, the preparation prescription and the method for the wood plastic composite of cold-resistant, shock resistance, easy-formation.
For achieving the above object, the present invention has adopted following technical scheme:
The present invention utilizes the prescription of polyethylene for base-material production wood plastic composite, and its component and parts by weight proportioning are as follows:
Polyethylene 10-20 part
Wood powder 55-65 part
Toxilic acid grafting PE 10-20 part
Carboxyl ethylene-propylene diene copolymer 10-15 part
Other auxiliary agents 5-10 part
Described polyethylene is a waste polyethylene, and granularity is the 20-30 order;
Described wood powder is poplar powder, weedtree powder, cotton stalk powder, corn stalk powder, and its granularity is the 80-85 order, and water content is less than 2%;
Described other auxiliary agents are lead sulfate tribasic, dibasic lead phosphite, polyester wax, Zinic stearas, lead stearate, isocyanate, aluminic acid ester, titanic acid ester, silane coupling agent.
The preparation method of the prescription of polyethylene based wood-plastic composite material of the present invention comprises the steps:
1) will stir 80 ℃-90 ℃ of mixing temperatures 15-20 minute in the raw material adding high-speed mixer according to formulated;
2) mixed raw materials is added in the forcing machine extrude, the forcing machine engine speed is 40-60 rev/min, and the feeding machine rotating speed is 4-6 rev/min; Finalize the design after extruding.
Described forcing machine is a twin screw extruder.
Extrudate promptly gets described wood plastic composite through cooling, section then through the typing of sheet type mouth mould.
The prepared polyethylene based wood-plastic composite material of the present invention, added the carboxyl ethylene-propylene diene copolymer, the carboxyl ethylene-propylene diene copolymer is a kind of synthetic rubber of excellent property, have better elasticity, low temperature properties, shock resistance than plastics, the carboxyl ethylene-propylene diene copolymer is owing to introduce polar group, also has very strong and bonding force wood powder or fibrous material, therefore, in polyethylene based wood-plastic composite material, add the carboxyl ethylene-propylene diene copolymer, can improve the performance of wood plastic composite.
Embodiment
Further specify the present invention below in conjunction with embodiment, scope of the present invention is not subjected to the restriction of embodiment.
Embodiment 1
1,20 purpose waste polyethylene particles is cleaned, in air dry oven, dry down in 100 ℃;
2,80 purpose wood powders are dried down in 100 ℃ in air dry oven, its water content is dropped to below 2%;
3, feed composition is weighed by weight and is got the raw materials ready:
12 parts of old polyethylene particles
58 parts in poplar powder
15 parts of toxilic acid grafting PE
11 parts of carboxyl ethylene-propylene diene copolymers
2 parts of lead sulfate tribasics
2 parts of polyester wax
1 part of aluminic acid ester
4, will stir 80 ℃-90 ℃ of mixing temperatures 15-20 minute in the raw material adding high-speed mixer according to formulated;
5, mixed raw materials in the step 4 is put into twin screw extruder, carry out mixing extruding, 130 ℃ of barrel zone temperatures, 180 ℃ of head temperatures, the forcing machine engine speed is 60 rev/mins, and the feeding machine rotating speed is 6 rev/mins, and is mixing after sheet type machine head port mould extrusion sheet;
6, the sheet material in the step 5 is polyethylene based wood-plastic composite material through overcooling, cutting.
Then, after tested, the performance of polyethylene based wood-plastic composite material is: tensile strength is 17.8MPa, elongation at break 8.1%, low-temperature impact fracture: do not take place.
Embodiment 2
Weigh by following component concentration and to get the raw materials ready, repeat the method for embodiment 1.
15 parts of old polyethylene particles
60 parts in weedtree powder
18 parts of toxilic acid grafting PE
12 parts of carboxyl ethylene-propylene diene copolymers
2 parts of lead sulfate tribasics
2 parts of polyester wax
1 part of aluminic acid ester
After tested, the performance of polyethylene based wood-plastic composite material is: tensile strength is 17.9MPa, elongation at break 8.3%, low-temperature impact fracture: do not take place.
Claims (6)
1. the preparation prescription of a polyethylene based wood-plastic composite material, it is characterized in that: component and parts by weight proportioning are as follows:
Polyethylene 10-20 part
Wood powder 55-65 part
Toxilic acid grafting PE 10-20 part
Carboxyl ethylene-propylene diene copolymer 10-15 part
Other auxiliary agents 5-10 part
2. the preparation prescription of polyethylene based wood-plastic composite material as claimed in claim 1 is characterized in that described polyethylene is the waste polyethylene particle, and granularity is the 20-30 order.
3. the preparation prescription of polyethylene based wood-plastic composite material as claimed in claim 1 is characterized in that described wood powder is poplar powder, weedtree powder, cotton stalk powder, corn stalk powder, and its granularity is the 80-85 order, and water content is less than 2%.
4. the preparation prescription of polyethylene based wood-plastic composite material as claimed in claim 1 is characterized in that described other auxiliary agents are lead sulfate tribasic, dibasic lead phosphite, polyester wax, Zinic stearas, lead stearate, isocyanate, aluminic acid ester, titanic acid ester, silane coupling agent.
5. the preparation method of the prescription of polyethylene based wood-plastic composite material as claimed in claim 1 is characterized in that method comprises the steps:
1) will stir 80 ℃-90 ℃ of mixing temperatures 15-20 minute in the raw material adding high-speed mixer according to formulated
2) mixed raw materials is added in the forcing machine extrude, the forcing machine engine speed is 40-60 rev/min, and the feeding machine rotating speed is 4-6 rev/min; Finalize the design after extruding.
6. the preparation method of the prescription of polyethylene based wood-plastic composite material as claimed in claim 5 is characterized in that described forcing machine is a twin screw extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100186936A CN101792609B (en) | 2009-09-08 | 2009-09-08 | Formula and preparation method of polyethylene based wood-plastic composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100186936A CN101792609B (en) | 2009-09-08 | 2009-09-08 | Formula and preparation method of polyethylene based wood-plastic composite material |
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| CN101792609A true CN101792609A (en) | 2010-08-04 |
| CN101792609B CN101792609B (en) | 2012-04-18 |
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| CN2009100186936A Expired - Fee Related CN101792609B (en) | 2009-09-08 | 2009-09-08 | Formula and preparation method of polyethylene based wood-plastic composite material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127257A (en) * | 2010-12-30 | 2011-07-20 | 杭州电子科技大学 | Method for preparing ultra-high molecular weight polyethylene based wood/plastic composite material |
| CN103012899A (en) * | 2011-09-26 | 2013-04-03 | 蓝星环境工程有限公司 | High impact strength wood-plastic composite material as well as preparation method and application thereof |
| CN103897415A (en) * | 2014-04-11 | 2014-07-02 | 安徽惠云塑木股份有限公司 | Method for preparing mixed plastic-wood floor material |
| CN104497471A (en) * | 2014-11-26 | 2015-04-08 | 南京工业大学 | Method for subcritical water extrusion preparation of wood-plastic composite material |
| CN104602877A (en) * | 2012-09-06 | 2015-05-06 | 乐金华奥斯株式会社 | Wood polymer/plastic composite material available for direct connection construction and method for manufacturing same. |
| CN108467603A (en) * | 2018-05-03 | 2018-08-31 | 韩毅忠 | A kind of degradable fibrous straw powder material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4435277A1 (en) * | 1994-10-01 | 1996-04-04 | Alkor Gmbh | Plastic film for furniture or furniture parts and process for processing the same |
| KR100574165B1 (en) * | 2004-10-08 | 2006-04-27 | 한국엔지니어링플라스틱 주식회사 | Polyoxymethylene Resin Composition Having an Excellent Heat Stability |
| CN101024709A (en) * | 2007-02-06 | 2007-08-29 | 南京航空航天大学 | Moulding-grade wood-plastic composite and processing process |
-
2009
- 2009-09-08 CN CN2009100186936A patent/CN101792609B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127257A (en) * | 2010-12-30 | 2011-07-20 | 杭州电子科技大学 | Method for preparing ultra-high molecular weight polyethylene based wood/plastic composite material |
| CN102127257B (en) * | 2010-12-30 | 2013-03-13 | 杭州电子科技大学 | Method for preparing ultra-high molecular weight polyethylene based wood/plastic composite material |
| CN103012899A (en) * | 2011-09-26 | 2013-04-03 | 蓝星环境工程有限公司 | High impact strength wood-plastic composite material as well as preparation method and application thereof |
| CN103012899B (en) * | 2011-09-26 | 2014-10-01 | 蓝星环境工程有限公司 | High impact strength wood-plastic composite material as well as preparation method and application thereof |
| CN104602877A (en) * | 2012-09-06 | 2015-05-06 | 乐金华奥斯株式会社 | Wood polymer/plastic composite material available for direct connection construction and method for manufacturing same. |
| CN103897415A (en) * | 2014-04-11 | 2014-07-02 | 安徽惠云塑木股份有限公司 | Method for preparing mixed plastic-wood floor material |
| CN103897415B (en) * | 2014-04-11 | 2016-09-14 | 安徽惠云塑木股份有限公司 | A kind of preparation method mixing plastic-wood floor material |
| CN104497471A (en) * | 2014-11-26 | 2015-04-08 | 南京工业大学 | Method for subcritical water extrusion preparation of wood-plastic composite material |
| CN108467603A (en) * | 2018-05-03 | 2018-08-31 | 韩毅忠 | A kind of degradable fibrous straw powder material |
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|---|---|
| CN101792609B (en) | 2012-04-18 |
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