CN104403341A - High-strength wood-plastic composite and preparation method thereof - Google Patents
High-strength wood-plastic composite and preparation method thereof Download PDFInfo
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- CN104403341A CN104403341A CN201410765734.9A CN201410765734A CN104403341A CN 104403341 A CN104403341 A CN 104403341A CN 201410765734 A CN201410765734 A CN 201410765734A CN 104403341 A CN104403341 A CN 104403341A
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Abstract
The invention discloses a high-strength wood-plastic composite. The high-strength wood-plastic composite comprises the following materials in parts by weight: 80-100 parts of lignine fiber, 70-120 parts of thermoplastic plastic, 2-12 parts of a coupling agent, 7-10 parts of a lubricating agent, 1-8 parts of a reinforcing agent and 0.5-1 part of an antioxidant. A preparation method of the high-strength wood-plastic composite comprises the following steps: uniformly mixing the raw materials at a certain temperature, granulating and extruding the raw materials in a parallel twin-screw extruder to obtain the high-strength wood-plastic composite. The high-strength wood-plastic composite prepared by the cooperation of the synergistic coupling agent and the reinforcing agent is relatively high in strength and good in environmental protection performance; the preparation method of the high-strength wood-plastic composite is simple, easy to operate and suitable for industrial production.
Description
Technical field
The present invention relates to technical field of composite preparation, especially relate to a kind of high-intensity wood plastic composite and preparation method.
Background technology
Wood plastic composite is a kind of advanced composite material be surging forward in recent years, is to make full use of useless vegetable fibre to be mixed into new wood materials.Wood plastic composite have the resistance to compression suitable with timber, counter-bending, carry the physical and mechanical properties such as power; there is good Young's modulus; and its wearing quality is obviously better than normal wood material; surface hardness is high; be 2 ~ 5 times of general timber, can use in the not applicable environment of Traditional Wood prepared material, and when replacing common wood and using; the consumption to the forest reserves can be reduced, very important meaning is possessed to the protection of environment and the regeneration of resource.Therefore wood plastic composite possesses good application prospect, is mainly used in the industries such as furniture, building materials, logistics packaging at present.
There is the not high and shortcoming such as not environmentally of intensity at present conventional wood plastic composite, uses and often therefore bring inconvenience, and affect its recycling performance, constrain the development and apply of wood plastic composite.
Summary of the invention
Not enough for above-mentioned prior art, the invention provides a kind of high-intensity wood plastic composite and preparation method, this material possesses that intensity is high, the characteristic such as environmental protection and high comprehensive performance.
For above-mentioned technical problem, the technical scheme that the present invention takes is: a kind of high-intensity wood plastic composite, be made up of the material comprising following weight part ratio: lignin fibre 80 ~ 100 parts, thermoplastics 70 ~ 120 parts, coupling agent 2 ~ 12 parts, lubricant 7 ~ 10 parts, toughener 1 ~ 8 part, 0.5 ~ 1 part, oxidation inhibitor.
As preferably, described thermoplastics is recyclable or recycled plastic, and recycled plastic need carry out classifying, broken, cleaning and dry, and uses with after plastic granulator granulation.
As preferably, coupling agent is vinyl silanes, and in vinyl silanes molecule, contained vinyl can react with organism and combine, the adhesion of lignin fibre and plastics in effective reinforced composite, the intensity of increase matrix material.
As preferably, lubricant is one or both in stearic acid, calcium stearate.
As preferably, toughener be vinylbenzene-: acrylate.
As preferably, oxidation inhibitor is phosphite or phosphoric acid salt.
A preparation method for high-intensity wood plastic composite, is specially:
(1) raw material is taken with weight part: lignin fibre 80 ~ 100 parts, thermoplastics 70 ~ 120 parts, coupling agent 2 ~ 12 parts, lubricant 7 ~ 10 parts, toughener 1 ~ 8 part, 0.5 ~ 1 part, oxidation inhibitor.
(2) lignin fibre is warming up to 80 ~ 100 DEG C, add coupling agent mix and blend 5 ~ 10min, then add thermoplastics, lubricant, toughener and oxidation inhibitor and mix at 100 ~ 130 DEG C, discharging after cooling, as Preblend, stirring velocity is 350 ~ 600r/min.
(3) Preblend is placed in parallel double-screw machine carry out granulation and extrude, prilling temperature 160 ~ 190 DEG C, screw speed is 210 ~ 240r/min; Extrusion temperature 160 ~ 200 DEG C, screw speed is 10 ~ 20r/min, the section bar fixed length cutting extruded.
Lignin fibre is a kind of common, inexpensive base material, be chemically highly stable material at typical condition, not by general solvent, acid, alkali are corroded, having nontoxic, tasteless, pollution-free, cold fine quality, is a kind ofly do not affect environment, harmless Green Product.Lignin fibre has good toughness, dispersiveness and chemical stability, possesses very outstanding thickening resistance to cleavage.Compared to existing technology, the present invention is with lignin fibre composite plastic, and be equipped with a kind of high-intensity wood plastic composite prepared by synergy coupling agent and toughener and possess higher intensity and good environmental-protecting performance, preparation method is simple, easy to operate, is applicable to suitability for industrialized production.
Embodiment
Embodiment 1: a kind of high-intensity wood plastic composite, comprises the raw material of following weight part: lignin fibre 80 parts, thermoplastics 70 parts, coupling agent vinyl silanes 2 parts, lubricant stearic acid 7 parts, toughener cinnamic acrylic ester 1 part, oxidation inhibitor phosphite 0.5 part.
A kind of preparation method of high-intensity wood plastic composite, be specially: lignin fibre is warming up to 80 DEG C, add coupling agent mixing 10min, add again and also mix at 100 DEG C with the thermoplastics after plastic granulator granulation and other raw materials through classification, fragmentation, cleaning, drying, discharging after cooling, as Preblend, wherein, the stirring velocity of stirrer is 350r/min; Preblend is placed in parallel double-screw machine carry out granulation and extrude, prilling temperature 160 DEG C, screw speed is 240r/min; Extrusion temperature 160 DEG C, screw speed is 20r/min, and namely the section bar fixed length cutting extruded obtains high-intensity wood plastic composite.
Embodiment 2: a kind of high-intensity wood plastic composite, comprise the raw material of following weight part: lignin fibre 100 parts, thermoplastics 120 parts, coupling agent vinyl silanes 12 parts, lubricant stearic acid 5 parts, lubricant stearic acid calcium 5 parts, toughener vinylbenzene-: acrylate 8 parts, oxidation inhibitor phosphoric acid salt 1 part.
A kind of preparation method of high-intensity wood plastic composite, be specially: lignin fibre is warming up to 100 DEG C, add coupling agent mixing 5min, add again and also mix at 130 DEG C with the thermoplastics after plastic granulator granulation and other raw materials through classification, fragmentation, cleaning, drying, discharging after cooling, as Preblend, wherein, the stirring velocity of stirrer is 600r/min; Preblend is placed in parallel double-screw machine carry out granulation and extrude, prilling temperature 190 DEG C, screw speed is 210r/min; Extrusion temperature 200 DEG C, screw speed is 10r/min, and namely the section bar fixed length cutting extruded obtains high-intensity wood plastic composite.
Embodiment 3: a kind of high-intensity wood plastic composite, comprises the raw material of following weight part: lignin fibre 90 parts, thermoplastics 90 parts, coupling agent vinyl silanes 9 parts, lubricant stearic acid calcium 8 parts, toughener vinylbenzene-: acrylate 3 parts, oxidation inhibitor phosphoric acid salt 0.6 part.
A kind of preparation method of high-intensity wood plastic composite, be specially: lignin fibre is warming up to 90 DEG C, add coupling agent mixing 7min, add again and also mix at 110 DEG C with the thermoplastics after plastic granulator granulation and other raw materials through classification, fragmentation, cleaning, drying, discharging after cooling, as Preblend, wherein, the stirring velocity of stirrer is 400r/min; Preblend is placed in parallel double-screw machine carry out granulation and extrude, prilling temperature 180 DEG C, screw speed is 220r/min; Extrusion temperature 180 DEG C, screw speed is 15r/min, and namely the section bar fixed length cutting extruded obtains high-intensity wood plastic composite.
It should be pointed out that the present invention is not restricted to the described embodiments, under the prerequisite not departing from essence of the present invention, any simple modification of carrying out the present invention or displacement, all will fall within protection scope of the present invention.
Claims (7)
1. a high-intensity wood plastic composite, is characterized in that: be made up of the material comprising following weight part ratio: lignin fibre 80 ~ 100 parts, thermoplastics 70 ~ 120 parts, coupling agent 2 ~ 12 parts, lubricant 7 ~ 10 parts, toughener 1 ~ 8 part, 0.5 ~ 1 part, oxidation inhibitor.
2. a kind of high-intensity wood plastic composite according to claim 1, is characterized in that: described thermoplastics is recyclable or recycled plastic, and recycled plastic need carry out classifying, broken, cleaning and dry, and uses with after plastic granulator granulation.
3. a kind of high-intensity wood plastic composite according to claim 1, is characterized in that: described coupling agent is vinyl silanes.
4. a kind of high-intensity wood plastic composite according to claim 1, is characterized in that: described lubricant is one or both in stearic acid, calcium stearate.
5. a kind of high-intensity wood plastic composite according to claim 1, is characterized in that: described toughener is cinnamic acrylic ester.
6. a kind of high-intensity wood plastic composite according to claim 1, is characterized in that: described oxidation inhibitor is phosphite or phosphoric acid salt.
7. a preparation method for high-intensity wood plastic composite, is characterized in that comprising the following steps:
(1) raw material is taken with weight part: lignin fibre 80 ~ 100 parts, thermoplastics 70 ~ 120 parts, coupling agent 2 ~ 12 parts, lubricant 7 ~ 10 parts, toughener 1 ~ 8 part, 0.5 ~ 1 part, oxidation inhibitor;
(2) lignin fibre is warming up to 80 ~ 100 DEG C, add coupling agent mix and blend 5 ~ 10min, then add thermoplastics, lubricant, toughener and oxidation inhibitor and mix at 100 ~ 130 DEG C, discharging after cooling, as Preblend, stirring velocity is 350 ~ 600r/min;
(3) Preblend is placed in parallel double-screw machine carry out granulation and extrude, prilling temperature 160 ~ 190 DEG C, screw speed is 210 ~ 240r/min; Extrusion temperature 160 ~ 200 DEG C, screw speed is 10 ~ 20r/min, the section bar fixed length cutting extruded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410765734.9A CN104403341A (en) | 2014-12-15 | 2014-12-15 | High-strength wood-plastic composite and preparation method thereof |
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| CN201410765734.9A CN104403341A (en) | 2014-12-15 | 2014-12-15 | High-strength wood-plastic composite and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778284A (en) * | 2016-04-12 | 2016-07-20 | 苏州甫众塑胶有限公司 | Plant-fiber reinforced plastic material and preparing method thereof |
| CN106832981A (en) * | 2017-02-16 | 2017-06-13 | 深圳市博富隆新材料科技有限公司 | A kind of method that utilization black liquid prepares bio-based reinforced filling |
| CN107652584A (en) * | 2017-10-31 | 2018-02-02 | 桂林市漓江机电制造有限公司 | A kind of fibre-reinforced plastic material |
| CN107674310A (en) * | 2017-10-31 | 2018-02-09 | 桂林市漓江机电制造有限公司 | A kind of fibre-reinforced imitated wood material |
| CN113004602A (en) * | 2021-03-02 | 2021-06-22 | 哈尔滨商业大学 | Pinecone powder filled degradable plastic and preparation method thereof |
| CN114933816A (en) * | 2022-05-27 | 2022-08-23 | 江西瑞京鸿兴实业有限公司 | Regenerated wood-plastic product adopting decrosslinking agent and preparation method thereof |
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| WO1992007022A1 (en) * | 1990-10-23 | 1992-04-30 | Atomic Energy Of Canada Limited | Process for the preparation of cellulosic fibre-reinforced thermoplastic composite materials |
| CN1740234A (en) * | 2005-09-16 | 2006-03-01 | 浙江诚信包装材料有限公司 | Making process of compound wood-plastic material product |
| CN102234439A (en) * | 2010-04-22 | 2011-11-09 | 黄山美森新材料科技有限公司 | Novel wood plastic anticorrosive wallboard and production method thereof |
| CN102304290A (en) * | 2011-07-26 | 2012-01-04 | 北京林业大学 | Wood plastic composite and preparation method thereof |
| CN102618051A (en) * | 2012-03-29 | 2012-08-01 | 常熟市新港农产品产销有限公司 | Mildewproof anti-static plastic-wood composite material |
| CN103709775A (en) * | 2013-12-20 | 2014-04-09 | 黄山美森新材料科技有限公司 | Preparation method of high-strength wood-plastic composite section bar |
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| WO1992007022A1 (en) * | 1990-10-23 | 1992-04-30 | Atomic Energy Of Canada Limited | Process for the preparation of cellulosic fibre-reinforced thermoplastic composite materials |
| CN1740234A (en) * | 2005-09-16 | 2006-03-01 | 浙江诚信包装材料有限公司 | Making process of compound wood-plastic material product |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778284A (en) * | 2016-04-12 | 2016-07-20 | 苏州甫众塑胶有限公司 | Plant-fiber reinforced plastic material and preparing method thereof |
| CN106832981A (en) * | 2017-02-16 | 2017-06-13 | 深圳市博富隆新材料科技有限公司 | A kind of method that utilization black liquid prepares bio-based reinforced filling |
| CN107652584A (en) * | 2017-10-31 | 2018-02-02 | 桂林市漓江机电制造有限公司 | A kind of fibre-reinforced plastic material |
| CN107674310A (en) * | 2017-10-31 | 2018-02-09 | 桂林市漓江机电制造有限公司 | A kind of fibre-reinforced imitated wood material |
| CN113004602A (en) * | 2021-03-02 | 2021-06-22 | 哈尔滨商业大学 | Pinecone powder filled degradable plastic and preparation method thereof |
| CN114933816A (en) * | 2022-05-27 | 2022-08-23 | 江西瑞京鸿兴实业有限公司 | Regenerated wood-plastic product adopting decrosslinking agent and preparation method thereof |
| CN114933816B (en) * | 2022-05-27 | 2023-08-29 | 江西瑞京鸿兴实业有限公司 | Regenerated wood-plastic product adopting crosslinking agent and preparation method thereof |
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Application publication date: 20150311 |