CN101856887B - Wood-plastic composite board and manufacturing method thereof - Google Patents
Wood-plastic composite board and manufacturing method thereof Download PDFInfo
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- CN101856887B CN101856887B CN200910029781.6A CN200910029781A CN101856887B CN 101856887 B CN101856887 B CN 101856887B CN 200910029781 A CN200910029781 A CN 200910029781A CN 101856887 B CN101856887 B CN 101856887B
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Abstract
The invention provides a wood-plastic composite board which comprises an upper layer plate, a core plate and a lower layer plate, wherein, the two surfaces of the core plate integrally form symmetrical grid structures which are respectively compounded with the upper layer plate and the lower layer plate under hot pressure to form a grid hollow structure respectively; and the upper layer plate, the core plate and the lower plate are prepared from 20-60% of polyolefin particles, 20-70% of wood fiber, 0.1-0.3% of a processing agent, 0.2-0.5% of a coupling agent, 0.1-1% of a lubricant and other additive materials, wherein, the other additive materials can be one or combination of more than two of 0.05-0.1% of a preservative, 0.25-0.35% of a uvioresistant agent, 0.2-0.3% of an antioxidant and 0.06-0.2% of a fire retardant. The wood-plastic composite board of the invention is provided with the grid hollow structures, thereby meeting the requirement of application strengthen and saving materials, and the manufacturing method can be completed on the same production line and has high processing efficiency.
Description
Technical field
The present invention relates to a kind of composite board, in particular to a kind of wood-plastic composite panel and preparation method thereof, the wood-plastic clad plate of preparation can be widely used in the fields such as water conservancy, highway, railway, architectural engineering and farming and animal husbandry, as waterproof bulkhead, counter dam, wallboard, Pu plate, building template, cabin plate etc.
Background technology
Along with the development that industrial economy is at full speed, discarded plasthetics is difficult to dispose, and these refuses make landfill material at present or in accordance with the law, or do refuse disposal.Along with the development of polymer material science and technology, discarded plasthetics can be carried out recycling by people, but a large amount of discarded plastic cement but cannot be effectively addressed all the time.
So scientific and technical personnel are through developing, discarded timber can be utilized to be processed into powder, with waste plastic powder, to add associated additives, melt mixed processing by heat and form mixed powder, this mixed powder is formed the wood-plastic composite panel of the various occasion of application through extrusion equipment.But the composite board of existing processing is all solid slab, when meeting the application scenario of supporting surface some strength and thickness, if increase single-piece composite plate thickness, the weight of single plate will be increased, and materials waste.
Summary of the invention
In order to make up above deficiency, the invention provides a kind of wood-plastic clad plate and preparation method thereof, this wood-plastic clad plate has lattice-shaped hollow structure, not only meet using strength but also save materials, and the method preparing this Wood-plastic foaming composite board can complete in same production line, working (machining) efficiency is high.
The technical scheme of wood-plastic clad plate described in the present invention is such realization: a kind of wood-plastic clad plate, by top plate, central layer and lower plywood composition, this central layer two sides is integrally formed symmetrical lattice-shaped structure, the lattice-shaped structure on this central layer two sides is composited by hot pressing with this top plate and lower plywood respectively, form the composite plate with the lattice-shaped hollow structure of isotropic, percentage, this top plate, central layer and lower plywood are by 20-60% polyolefin powder, 20-70% wood fibre, the processing aid of 0.1-0.3%, 0.2-0.5% coupling agent and 0.1-1% lubricant and other adding materials process.
As a further improvement on the present invention, percentage, these other adding materials are one or two or more kinds combination in the fire retardant of the anticorrisive agent of 0.05-0.1%, the UV resistant agent of 0.25-0.35%, the antioxidant of 0.2-0.3% and 0.06-0.2%.
The preparation method of wood-plastic clad plate described in the present invention, adopts following steps preparation:
Step 1: percentage, 20-70% wood fibre and 20-60% polyolefin powder are put into the mixing of high temperature mixer, progressively be warming up to 85-95 DEG C add 0.2-0.5% coupling agent stir be warming up to 100 DEG C-120 DEG C keep 5-10 minute, and then add 0.1-1% lubricant, the processing aid of 0.1-0.3% and other adding materials, mixed at high speed 10-20 minute again, then be discharged in cold mixer to stir and be cooled to 40 DEG C with bottom discharge, form compound;
Step 2: this compound is joined incorgruous cone twin-screw granulating extruder and extrude, employing die face cutting, two-stage wind send and make Composite particle;
Step 3: this Composite particle is joined the incorgruous cone double screw extruder with mould and extrude, form the central layer that two sides has paired grid structure, this central layer is strained exceptionally straight by pulling equipment; This Composite particle is joined respectively simultaneously and two groups with a pair even surface roller die incorgruous cone double screw extruders are extruded, form top plate and lower plywood respectively;
Step 4: after this top plate and lower plywood are covered on this central layer two sides respectively, through press polish compounding machine, this central layer and top plate and lower plywood are combined into one, and the coldplate cooling sizing by having internal cooling recirculated water, form sizing lattice-shaped Hollow composite board;
Step 5: this sizing composite plate drawn by hauling machine and lowers the temperature further through cooling blower, being processed into wood-plastic clad plate finally by cutting equipment.
As a further improvement on the present invention, these other adding materials in step 1 comprise the combination of one or two or more kinds in the fire retardant of the anticorrisive agent of 0.05-0.1%, the UV resistant agent of 0.25-0.35%, the antioxidant of 0.2-0.3% and 0.06-0.2%.
Advantageous Effects of the present invention is: described wood-plastic clad plate is made up of top plate, central layer and lower plywood, this central layer two sides is integrally formed lattice-shaped structure, and be composited by hot pressing with this top plate and lower plywood respectively, thus form the composite plate with the lattice-shaped hollow structure of isotropic, like this under will meeting certain support strength situation, while increasing composite plate thickness, can weight be reduced, thus reduce costs.
Composite particle described in described wood-plastic clad plate preparation method joins the incorgruous cone double screw extruder with mould and extrudes, and form the central layer that two sides has paired grid structure, this central layer is strained exceptionally straight by pulling equipment; Meanwhile, this Composite particle is joined two groups of incorgruous cone double screw extruders with a pair even surface roll mould to extrude, form top plate and lower plywood respectively, after this top plate and lower plywood are covered on this central layer two sides respectively, through press polish compounding machine, central layer and top plate and lower plywood are combined into one, and the coldplate cooling sizing by having internal cooling recirculated water, form sizing composite plate, sheet material is processed into finally by cutting equipment, thus by same production line completes, improve working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is top plate described in the present invention, central layer and lower plywood synthesis schematic diagram;
Fig. 3 is the schematic diagram of core plate structure described in the present invention.
Detailed description of the invention
A kind of wood-plastic clad plate is made up of top plate 1, central layer 2 and lower plywood 3, this central layer 2 two sides is integrally formed the grating texture of symmetrical grid symmetry, the lattice-shaped structure on this central layer 2 two sides passes through hot pressing compound with this top plate 1 and lower plywood 2 respectively, thus forms lattice-shaped hollow structure respectively.
Adopt following raw materials according:
Reclaim PE 40%
Rice husk meal 59%
Lubricant 0.5%
Coupling agent 0.3%
Antioxidant 0.2%
Wood-plastic clad plate is prepared according to following steps with above raw material:
Step 1: by above-mentioned material percentage, rice husk meal and recovery PE particle are put into the mixing of high temperature mixer, progressively be warming up to 90 DEG C add coupling agent stir be warming up to 100 DEG C keep 5 minutes, and then add lubricant and antioxidant, mixed at high speed 15 minutes again, is then discharged to stirring in cold mixer and is cooled to 40 DEG C with bottom discharge;
Step 2: this compound is joined incorgruous cone twin-screw granulating extruder and extrude, employing die face cutting, two-stage wind send and make Composite particle;
Step 3: this Composite particle is joined the incorgruous cone double screw extruder with mould and extrude, form the central layer that two sides has paired grid structure, this central layer is strained exceptionally straight by pulling equipment; This Composite particle is joined respectively simultaneously and two groups with a pair even surface roller die incorgruous cone double screw extruders are extruded, form top plate and lower plywood respectively.
Step 4: after this top plate and lower plywood are covered on this central layer two sides respectively, is combined into one central layer and top plate and lower plywood through press polish compounding machine, and the coldplate cooling sizing by having internal cooling recirculated water;
Step 5: plate good for composite setting drawn by hauling machine and lowers the temperature further through cooling blower, being processed into sheet material finally by cutting equipment.
In order to satisfied different purposes, as the feature such as anticorrosion, anti-aging or fire-retardant, the combination of one or two or more kinds in the fire retardant of the anticorrisive agent of 0.05-0.1%, the UV resistant agent of 0.25-0.35% and 0.06-0.2% in step 1, can also be added.
Prepare sheet material by above method to test through East China University of Science: when thickness is 18mm, its bending modulus reaches 671Mpa, bending strength reaches 9.8Mpa; When thickness is 20mm, its bending modulus reaches 727Mpa, bending strength reaches 11Mpa.
Claims (1)
1. a preparation method for wood-plastic clad plate, is characterized in that, adopts following steps preparation:
Step 1: percentage, 20-70% wood fibre and 20-60% polyolefin powder are put into the mixing of high temperature mixer, progressively be warming up to 85-95 DEG C add 0.2-0.5% coupling agent stir be warming up to 100 DEG C-120 DEG C keep 5-10 minute, and then add 0.1-1% lubricant, the processing aid of 0.1-0.3% and other adding materials, mixed at high speed 10-20 minute again, then be discharged in cold mixer to stir and be cooled to 40 DEG C with bottom discharge, form compound;
Step 2: this compound is joined incorgruous cone twin-screw granulating extruder and extrude, employing die face cutting, two-stage wind send and make Composite particle;
Step 3: this Composite particle is joined the incorgruous cone double screw extruder with mould and extrude, form the central layer that two sides has paired grid structure, this central layer is strained exceptionally straight by pulling equipment; This Composite particle is joined respectively simultaneously and two groups with a pair even surface roller die incorgruous cone double screw extruders are extruded, form top plate and lower plywood respectively;
Step 4: after this top plate and lower plywood are covered on this central layer two sides respectively, is combined into one this central layer and top plate and lower plywood through press polish compounding machine, and by having internal cooling
The coldplate cooling sizing of recirculated water, forms sizing lattice-shaped Hollow composite board;
Step 5: this sizing lattice-shaped Hollow composite board drawn by hauling machine and lowers the temperature further through cooling blower, being processed into wood-plastic clad plate finally by cutting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029781.6A CN101856887B (en) | 2009-04-09 | 2009-04-09 | Wood-plastic composite board and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029781.6A CN101856887B (en) | 2009-04-09 | 2009-04-09 | Wood-plastic composite board and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN101856887A CN101856887A (en) | 2010-10-13 |
| CN101856887B true CN101856887B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910029781.6A Active CN101856887B (en) | 2009-04-09 | 2009-04-09 | Wood-plastic composite board and manufacturing method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2568014A4 (en) * | 2010-12-03 | 2014-04-23 | Huzhou Xinfeng Wood Plastic Composite Co Ltd | Process for manufacturing raised floor and raised floor manufactured according to same |
| CN106965469B (en) * | 2017-04-25 | 2019-03-26 | 遵义市万美科技有限公司 | Vapor-permeable type wood moulding board production technology |
| CN113799409B (en) * | 2021-09-07 | 2022-07-05 | 东北林业大学 | Preparation method of surface-decorative wood-plastic composite material |
| CN114407320A (en) * | 2021-12-30 | 2022-04-29 | 宁波盒象科技有限公司 | Manufacturing method of logistics turnover box substrate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211468Y (en) * | 1994-04-14 | 1995-11-01 | 柏燕 | Briquetting floor |
| US5738924A (en) * | 1994-01-26 | 1998-04-14 | Sing; Peter | Sandwich construction building materials |
| CN2665268Y (en) * | 2003-12-10 | 2004-12-22 | 廖志强 | Reinforced honeycomb core clad plate |
| CN1987018A (en) * | 2006-12-18 | 2007-06-27 | 徐肖虎 | Wood-plastic formwork for construction engineering |
-
2009
- 2009-04-09 CN CN200910029781.6A patent/CN101856887B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5738924A (en) * | 1994-01-26 | 1998-04-14 | Sing; Peter | Sandwich construction building materials |
| CN2211468Y (en) * | 1994-04-14 | 1995-11-01 | 柏燕 | Briquetting floor |
| CN2665268Y (en) * | 2003-12-10 | 2004-12-22 | 廖志强 | Reinforced honeycomb core clad plate |
| CN1987018A (en) * | 2006-12-18 | 2007-06-27 | 徐肖虎 | Wood-plastic formwork for construction engineering |
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| Publication number | Publication date |
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| CN101856887A (en) | 2010-10-13 |
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