CN202592870U - Polyethylene terephthalate (PET) composite film - Google Patents
Polyethylene terephthalate (PET) composite film Download PDFInfo
- Publication number
- CN202592870U CN202592870U CN 201220196213 CN201220196213U CN202592870U CN 202592870 U CN202592870 U CN 202592870U CN 201220196213 CN201220196213 CN 201220196213 CN 201220196213 U CN201220196213 U CN 201220196213U CN 202592870 U CN202592870 U CN 202592870U
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- pet
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- modified
- composite film
- middle layer
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model discloses a polyethylene terephthalate (PET) composite film. The PET composite film comprises three layers, respectively a PET layer, a middle layer and a propene polymer (PP) layer, wherein the middle layer is a mixing layer of modified polyethylene (PE) and PE, and the modified PE is 4410-2 high-density polyethylene (HDPE). The middle layer and the PP layer are bonded together in hot extrusion mode, and a thickness ratio of the middle layer and the PP layer is 1:1. The PET composite film is simple in structure. Because the PE does not have necking effect and the modified PE is mixed with the PE then in hot extrusion with the PP, produced film slitter edges are few and production cost is reduced. In addition, bonding effect between the modified PE and the PET is better after the modified PE is mixed with the PE, activated carbon agents are not needed in the production process, and therefore the PET composite film is environment-friendly.
Description
Technical field
The utility model relates to a kind of plastic sheeting, is specifically related to a kind of PET laminated film.
Background technology
The PET plastics are abbreviations of English Polyethylene terephthalate, are called for short PET or PETP.The Chinese meaning is: poly terephthalic acid class plastics mainly comprise PET PET and polybutylene terephthalate PBT.PETG is commonly called as polyester resin again, is commonly called as polyester resin.It is the condensation polymer of terephthalic acid (TPA) and ethylene glycol, is referred to as thermoplastic polyester with PBT, or saturated polyester.
The PET film is that a kind of performance is than more comprehensive packing film.Its transparency is good, and is glossy; Have good air-tightness and fragrance protectiveness; Moisture resistance is medium, and rate of perviousness descends at low temperatures.The mechanical performance of PET film is good, and its obdurability is best in all thermoplastics, and tensile strength and impact strength are more much higher than general film; And very power is good, and dimensionally stable is suitable for secondary operations such as printing, paper bag.The PET film also has good heat-resisting, cold resistance and good chemical proofing and oil resistivity.
The gas permeability of PE polypropylene film is bigger, and with the increase of density, its gas permeability descends.The PE film has moisture resistance, and poisture-penetrability is little.Polyethylene film (PE) is different according to manufacturing approach and control device, can produce the product of different performances such as low-density, middle density, highdensity polyethylene and crosslinked polyethylene.
Conventional P ET/PP composite membrane in process of production because the constriction amount of PP is big, the slitter edge that causes producing is many, also will use the AC agent in process of production simultaneously and carry out plucking, increases production cost, also can exert an influence to ecological environment.
The utility model content
The purpose of the utility model has been to provide a kind of waste material of generation few, need not use the PET composite membrane of adhesive.
The scheme of the utility model is following: a kind of PET laminated film, comprise three layers, and be respectively pet layer, intermediate layer, PP layer, described intermediate layer is the mixed layer of modified PE and PE.
Described modified PE is 4410-2HDPE.
Described intermediate layer and PP layer are bonded together through the hot extrude mode of closing.
Described intermediate layer and PP layer thickness ratio are 1: 1.
The beneficial effect of the utility model: simple in structure; Owing to PE does not have constriction, after merging, use modified PE and PE close with the PP hot extrude, and the film body slitter edge of feasible generation has still less reduced production cost, and back of modified PE and PE fusion simultaneously and PET associativity are better, need not to use in process of production AC agent, environmental protection more.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with Fig. 1 the utility model is further specified.
In the utility model, PET is a PETG, and PE is a polyethylene, and PP is a polypropylene.
A kind of PET laminated film comprises three layers, is respectively pet layer 1, intermediate layer 2, PP layer 3, and described intermediate layer 2 is the mixed layer of modified PE and PE.
Described modified PE is 4410-2HDPE.
Described intermediate layer 2 is bonded together through the hot extrude mode of closing with PP layer 3.
Described intermediate layer 2 is 1: 1 with PP layer 3 thickness proportion.
In actual production process, the constriction amount after modified PE and PE merge is significantly smaller than the constriction amount of PP, like this when producing the PET composite membrane; The slitter edge that produces will be still less; Manufacturing enterprise's cost has obtained reduction, and the associativity of adding modified PE and PE fusion back and PET is better, need not to use the AC agent; Further reduced the cost of enterprise, also reduced harmful effect environment.
Although preceding text have given to describe in detail and explanation to the specific embodiment of the utility model; But what should indicate is; We can carry out various equivalences to above-mentioned embodiment according to the conception of the utility model and change and modification; When the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, all should be within the protection domain of the utility model.
Claims (4)
1. a PET laminated film comprises three layers, is respectively pet layer, intermediate layer, PP layer, it is characterized in that described intermediate layer is the mixed layer of modified PE and PE.
2. a kind of PET laminated film according to claim 1 is characterized in that described modified PE is 4410-2HDPE.
3. a kind of PET laminated film according to claim 1 is characterized in that described intermediate layer and PP layer are bonded together through the hot extrude mode of closing.
4. a kind of PET laminated film according to claim 1 is characterized in that described intermediate layer and PP layer thickness ratio are 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220196213 CN202592870U (en) | 2012-05-04 | 2012-05-04 | Polyethylene terephthalate (PET) composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220196213 CN202592870U (en) | 2012-05-04 | 2012-05-04 | Polyethylene terephthalate (PET) composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202592870U true CN202592870U (en) | 2012-12-12 |
Family
ID=47310453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220196213 Expired - Fee Related CN202592870U (en) | 2012-05-04 | 2012-05-04 | Polyethylene terephthalate (PET) composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202592870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369781A (en) * | 2013-08-17 | 2015-02-25 | 江苏卡威汽车工业集团有限公司 | Car floor |
-
2012
- 2012-05-04 CN CN 201220196213 patent/CN202592870U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369781A (en) * | 2013-08-17 | 2015-02-25 | 江苏卡威汽车工业集团有限公司 | Car floor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20150504 |
|
| EXPY | Termination of patent right or utility model |