CN1590070A - Three lager coextrusion foamed board and its use and preparation method - Google Patents
Three lager coextrusion foamed board and its use and preparation method Download PDFInfo
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- CN1590070A CN1590070A CN 03140404 CN03140404A CN1590070A CN 1590070 A CN1590070 A CN 1590070A CN 03140404 CN03140404 CN 03140404 CN 03140404 A CN03140404 A CN 03140404A CN 1590070 A CN1590070 A CN 1590070A
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- layer
- extruded
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- foaming
- foaming plate
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
An extruded three-layer foam plate used as the casing of container or insulating plate is composed of a high-foamed plastic layer as sandwich layer, and two hard plastic layers are surface layers. Said sandwich layer is prepared by physical foaming, that is, the CO2, propane, or butane gas is directly pumped into extruder.
Description
Technical field:
The present invention relates to the plastic plate technical field, refer in particular to a kind of composite plastic plate that is composited by foam layer and hard plastic layer and uses thereof and preparation method.
Background technology:
I once proposed the patent No. on August 13rd, 2002 to State Intellectual Property Office is 02272457.5, name is called the utility application of " three-layer co-extruded plastic plate ", in this application, a kind of composite plastic sheet material is disclosed, it comprises one deck micro-foamed plastic layer, two surfaces of micro-foamed plastic layer are covered with hard plastic layer respectively, and the thickness of micro-foamed plastic layer is bigger than hard plastic layer thickness separately.Micro-foamed plastic layer and hard plastic layer can select to use in polypropylene, high density polyethylene (HDPE), low density polyethylene (LDPE), linear polyethylene, polystyrene, the ethene acetic acid-vinyl acetate wherein any material to make respectively, and the micro-foamed plastic layer also can adopt the reclaiming material to make.The rigid plate weight that do not foam of the plastic plate comparison individual layer that is combined into like this can alleviate 20%～50%, still increases substantially and compare the surface physics rigidity with individual layer foaming plate; And the surface colour lover can make different colors as required.
The intermediate layer of this sheet material is the micro-foamed plastic layer, promptly is low foaming plastic, and it adopts the chemical blowing method to add blowing agent in plastics and makes, and density is 0.5g/cm
3～0.8g/cm
3, but adopting the intermediate layer of low foaming plastic as composite board, composite board is still heavier.
Summary of the invention:
The new construction that purpose of the present invention just is to provide a kind of three-layer co-extruded foaming plate to be overcoming above-mentioned shortcoming, and proposes the purposes of this sheet material and its preparation method thereupon.
The present invention is achieved through the following technical solutions: three-layer co-extruded foaming plate is characterized in that: it comprises high foaming plastic layer, and two surfaces of high foaming plastic layer are covered with hard plastic layer respectively.
The preparation method of this three-layer co-extruded foaming plate is characterized in that: high foaming plastic layer adopts physical foaming method to make, and as blowing agent, directly squeezes into crowded extruder with carbon dioxide or propane or butane gas, and making density is 0.03g/cm
3～0.6g/cm
3Height foaming plastic layer.
The purposes of this three-layer co-extruded foaming plate is characterized in that: it is used to prepare the shell or the inner casing of container, and it also can be used for preparing heat insulating board.
The present invention is with height plastic layer thicker that layer in the middle of being placed on that foams, and hard plastic layer is in high foaming plastic layer two surfaces and goes up that thin layer, and the plastic plate weight that is combined into like this can alleviate 20%～95%, and the surface physics rigidity still increases substantially; And the surface colour lover can make different colors as required; Because high foaming plastic layer, hard plastic layer adopt generic plastic, even it is not of the same race, but one-shot forming in making production process, so reduced processing charges, high foaming plastic layer also can adopt the reclaiming material to make, not only compliance with environmental protection requirements has reduced cost again simultaneously, and these two factors make that all cost greatly reduces.
Since three-layer co-extruded foaming plate have light weight heat insulation good, heat endurance is good, its maximum operation (service) temperature can reach 130 ℃, but the high temperature process moulding, the product size excellent in stability of moulding has high toughness, and hot strength is good, the impact strength height, microwave adaptability excellence; And has good weldability; Also have the excellent energy adsorptivity, good stress crack resistance performance, excellent mechanical property, through overtesting, it can be made into the shell or the inner casing of container.
I find packaging for foodstuff, hold the container of receiving adopts polystyrene PS expanded material to make in a large number, and the PS expanded material is difficult to reclaim, and can cause serious white pollution.And the degradation property of three-layer co-extruded foaming plate obviously is better than polystyrene PS expanded material.With three-layer co-extruded foaming plate can replace polystyrene PS expanded material food prepared therefrom to pack, to hold the container of receiving a large amount of, bowl, mess-tin, cup as instant noodles, the various fruit of selling on the supermarket, delicatessen, half-finished packing box are used for food service tray, the vessel of micro-wave oven.
Its energy adsorptivity preferably of three-layer co-extruded foaming plate, good stress crack resistance performance, excellent mechanical property makes it can be used for preparing the shell of case and bag, as the shell of luggage, knapsack, computer package, sports bag, school bag, plastic box.
Its good stress crack resistance performance of three-layer co-extruded foaming plate, excellent mechanical property is added its good weldability, makes it can be used for preparing interior lining panel, the dashboard of automobile.
I find that again the interior lining panel, thermal insulation board, sound panel, dashboard of some automobile adopts rigid plastic sheet, and rigid plastic sheet weight is big, and also need install expanded material at the inner face of plate additional during as thermal insulation board, sound panel and could realize function heat insulation, sound insulation.
And three-layer co-extruded foaming plate has good sound deadener/insulator, but its sound-insulating and heat-insulating, its thermal conductivity is all lower than rigid foam plate, polyethylene foamed PE, and it has good stress crack resistance performance, excellent mechanical property, so it is comparatively ideal insulation material, acoustic material.It can be used for preparing heat insulating board, also can be used for preparing sound panel.Warming plate as the thermal insulation board of automobile, sound panel, house, frigid zone.
If make interior lining panel, thermal insulation board, sound panel, the dashboard of automobile with three-layer co-extruded foaming plate, not only can weight reduction, and because the centre of this plastic plate accompanies little foaming layer, itself just has heat insulation, sound insulation function, thermal insulation board, the sound panel made with it install expanded material with regard to need not additional at the inner face of plate, manufacture the work simplification of automobile heat insulation plate, sound panel like this, can reduce cost, raise the efficiency.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model
The specific embodiment:
See shown in the accompanying drawing 1 that three-layer co-extruded foaming plate (4) is characterized in that: it comprises high foaming plastic layer (1), and two surfaces of high foaming plastic layer (1) are covered with hard plastic layer (2,3) respectively.
The thickness of high foaming plastic layer (1) is bigger than hard plastic layer (2,3) thickness separately.
High foaming plastic layer (1), hard plastic layer (2,3) can adopt the thermoplasticity material to make respectively.
The thermoplasticity material is polypropylene, polyethylene, polystyrene, ethene acetic acid-vinyl acetate, polyvinyl chloride, ABS or nylon material.
The preparation method of above-mentioned three-layer co-extruded foaming plate, high foaming plastic layer (1) adopts physical foaming method to make, and as blowing agent, directly squeezes into crowded extruder with carbon dioxide or propane or butane gas, and making density is 0.03g/cm
3~ 0.6g/cm
3Height foaming plastic layer (1).High foaming plastic layer (1) also can adopt the reclaiming material to make.
I find packaging for foodstuff, hold the container of receiving adopts polystyrene PS expanded material to make in a large number, and the PS expanded material is difficult to reclaim, and can cause serious white pollution.And the degradation property of three-layer co-extruded foaming plate obviously is better than polystyrene PS expanded material.With three-layer co-extruded foaming plate can replace polystyrene PS expanded material food prepared therefrom to pack, to hold the container of receiving a large amount of, bowl, mess-tin, cup as instant noodles, the various fruit of selling on the supermarket, delicatessen, half-finished packing box are used for food service tray, the vessel of micro-wave oven.But for reaching the sanitary tableware standard, the intermediate layer of general three-layer co-extruded foaming plate high foaming plastic layer (1) does not adopt the reclaiming material.
Its energy adsorptivity preferably of three-layer co-extruded foaming plate, good stress crack resistance performance, excellent mechanical property makes it can be used for preparing the shell of case and bag, as the shell of luggage, knapsack, computer package, sports bag, school bag, plastic box.
Its good stress crack resistance performance of three-layer co-extruded foaming plate, excellent mechanical property is added its good weldability, makes it can be used for preparing interior lining panel, the dashboard of automobile.
I find that again the interior lining panel, thermal insulation board, sound panel, dashboard of some automobile adopts rigid plastic sheet, and rigid plastic sheet weight is big, and also need install expanded material at the inner face of plate additional during as thermal insulation board, sound panel and could realize function heat insulation, sound insulation.
And three-layer co-extruded foaming plate has good sound deadener/insulator, but its sound-insulating and heat-insulating, its thermal conductivity is all lower than rigid foam plate, polyethylene foamed PE, and it has good stress crack resistance performance, excellent mechanical property, so it is comparatively ideal insulation material, acoustic material.It can be used for preparing heat insulating board, also can be used for preparing sound panel.Warming plate as the thermal insulation board of automobile, sound panel, house, frigid zone.
If make interior lining panel, thermal insulation board, sound panel, the dashboard of automobile with three-layer co-extruded foaming plate, not only can weight reduction, and because the centre of this plastic plate accompanies little foaming layer, itself just has heat insulation, sound insulation function, thermal insulation board, the sound panel made with it install expanded material with regard to need not additional at the inner face of plate, manufacture the work simplification of automobile heat insulation plate, sound panel like this, can reduce cost, raise the efficiency.
The product of the three-layer co-extruded foaming plate preparation of above-mentioned application, the height of the centre of all the other products foaming plastic layer all can use the reclaiming material to make except that tableware, this can make cost significantly reduce, and use reclaiming material to make because of the foaming of the height in the middle of it plastic layer, make and itself just can reclaim again, three-layer co-extruded foaming plate is compared than other plastics, and environmental protection is had revolutionary impact, its recyclable regeneration can meet environmental protection requirement.
The purposes of above-mentioned three-layer co-extruded foaming plate, it is used to prepare the shell or the inner casing of container.
It is used to prepare heat insulating board.
The present invention is with height plastic layer thicker that layer in the middle of being placed on that foams, and hard plastic layer is in high foaming plastic layer two surfaces and goes up that thin layer, and the plastic plate weight that is combined into like this can alleviate 20%～95%, and the surface physics rigidity still increases substantially; And the surface colour lover can make different colors as required; Because high foaming plastic layer, hard plastic layer adopt generic plastic, even it is not of the same race, but one-shot forming in making production process, so reduced processing charges, high foaming plastic layer also can adopt the reclaiming material to make, not only compliance with environmental protection requirements has reduced cost again simultaneously, and these two factors make that all cost greatly reduces.
Claims (15)
1. three-layer co-extruded foaming plate (4) is characterized in that: it comprises high foaming plastic layer (1), and two surfaces of high foaming plastic layer (1) are covered with hard plastic layer (2,3) respectively.
2. three-layer co-extruded foaming plate as claimed in claim 1 (4) is characterized in that: the thickness of high foaming plastic layer (1) is bigger than hard plastic layer (2,3) thickness separately.
3. three-layer co-extruded foaming plate as claimed in claim 1 or 2 (4) is characterized in that: high foaming plastic layer (1), hard plastic layer (2,3) can adopt the thermoplasticity material to make respectively.
4. three-layer co-extruded foaming plate as claimed in claim 3 (4) is characterized in that: the thermoplasticity material is polypropylene, polyethylene, polystyrene, ethene acetic acid-vinyl acetate, polyvinyl chloride, ABS or nylon material.
5. the preparation method of three-layer co-extruded foaming plate as claimed in claim 1, it is characterized in that: high foaming plastic layer (1) adopts physical foaming method to make, as blowing agent, directly squeeze into crowded extruder with carbon dioxide or propane or butane gas, making density is 0.03g/cm
3～0.6g/cm
3Height foaming plastic layer (1).
6. the preparation method of three-layer co-extruded foaming plate as claimed in claim 1 is characterized in that: high foaming plastic layer (1) can adopt the reclaiming material to make.
7. the purposes of three-layer co-extruded foaming plate as claimed in claim 1 is characterized in that: it is used to prepare the shell or the inner casing of container.
8. the purposes of three-layer co-extruded foaming plate as claimed in claim 1 is characterized in that: it is used to prepare heat insulating board.
9. the purposes of three-layer co-extruded foaming plate as claimed in claim 1 is characterized in that: it is used to prepare sound panel.
10. the purposes of three-layer co-extruded foaming plate as claimed in claim 7, it is characterized in that: it is used to prepare packaging for foodstuff, holds the container of receiving, bowl, mess-tin, cup as instant noodles, the various fruit of selling on the supermarket, delicatessen, half-finished packing box are used for food service tray, the vessel of micro-wave oven.
11. the purposes of three-layer co-extruded foaming plate as claimed in claim 7 is characterized in that: it is used to prepare the shell of case and bag, as the shell of luggage, knapsack, computer package, sports bag, school bag, plastic box.
12. the purposes of three-layer co-extruded foaming plate as claimed in claim 7 is characterized in that: it is used to prepare interior lining panel, the dashboard of automobile.
13. the purposes of three-layer co-extruded foaming plate as claimed in claim 8 is characterized in that: it is used to prepare the thermal insulation board of automobile.
14. the purposes of three-layer co-extruded foaming plate as claimed in claim 8 is characterized in that: it is used to prepare the warming plate in house, frigid zone.
15. the purposes of three-layer co-extruded foaming plate as claimed in claim 9 is characterized in that: it is used to prepare the sound panel of automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03140404 CN1590070A (en) | 2003-09-05 | 2003-09-05 | Three lager coextrusion foamed board and its use and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03140404 CN1590070A (en) | 2003-09-05 | 2003-09-05 | Three lager coextrusion foamed board and its use and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1590070A true CN1590070A (en) | 2005-03-09 |
Family
ID=34597357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03140404 Pending CN1590070A (en) | 2003-09-05 | 2003-09-05 | Three lager coextrusion foamed board and its use and preparation method |
Country Status (1)
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|---|---|
| CN (1) | CN1590070A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085689A (en) * | 2010-11-26 | 2011-06-08 | 卢文成 | Production method for inorganic foaming board |
| CN103832031A (en) * | 2014-03-17 | 2014-06-04 | 罗景明 | Foaming regeneration environment-friendly plastic sheet and preparation method thereof |
| CN109747227A (en) * | 2017-11-06 | 2019-05-14 | 苏州柯莱美高分子材料科技有限公司 | A kind of resin plate and preparation method for silicon wafer cutting |
-
2003
- 2003-09-05 CN CN 03140404 patent/CN1590070A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085689A (en) * | 2010-11-26 | 2011-06-08 | 卢文成 | Production method for inorganic foaming board |
| CN103832031A (en) * | 2014-03-17 | 2014-06-04 | 罗景明 | Foaming regeneration environment-friendly plastic sheet and preparation method thereof |
| CN103832031B (en) * | 2014-03-17 | 2016-02-17 | 罗景明 | A kind of foaming regenerated environment protecting plastic sheet and preparation method |
| CN109747227A (en) * | 2017-11-06 | 2019-05-14 | 苏州柯莱美高分子材料科技有限公司 | A kind of resin plate and preparation method for silicon wafer cutting |
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| 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 |