CN202847029U - Novel PET composite film - Google Patents
Novel PET composite film Download PDFInfo
- Publication number
- CN202847029U CN202847029U CN 201220196212 CN201220196212U CN202847029U CN 202847029 U CN202847029 U CN 202847029U CN 201220196212 CN201220196212 CN 201220196212 CN 201220196212 U CN201220196212 U CN 201220196212U CN 202847029 U CN202847029 U CN 202847029U
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- modified
- composite film
- novel pet
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a novel PET (Polyethylene Glycol Terephthalate) composite film, comprising three layers: a PET layer, a middle layer and a PE (Poly Ethylene) layer, wherein the middle layer is the hybrid layer of modified PE and PP (Polypropylene); the modified PE is 4410-2HDPE; the middle layer and the PE layer are bonded together in a hot pressing way; and the thickness ratio of the PET layer to the middle layer to the PE layer is 0.5: 1: 1. The novel PET composite film is simple in structure; the modified PE is fused with PP and then hot-pressed with PE; the modified PE is better in bonding with PET and PE after being fused with PP; an AC agent is not needed in the production process; and simultaneously the production cost is reduced.
Description
Technical field
The utility model relates to a kind of plastic sheeting, is specifically related to a kind of novel 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 again polyester resin, 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 the more comprehensive packing film of a kind of Performance Ratio.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 the 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 larger, 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 manufacture method and control device, can produce the product of the different performances such as low-density, middle density, highdensity polyethylene and crosslinked polyethylene.
Conventional P ET/PE composite membrane owing to poor adhesion between PET and the PE, need to be used in process of production the AC agent and carry out plucking in process of production, and this increases production cost, also can exert an influence to ecological environment.
The utility model content
The purpose of this utility model has been to provide a kind of PET composite membrane that does not need to use the AC agent.
Scheme of the present utility model is as follows: a kind of novel PET laminated film, comprise three layers, and be respectively pet layer, intermediate layer, PE layer, described intermediate layer is the mixed layer of modified PE and PP.
Described modified PE is 4410-2HDPE.
Described intermediate layer and PE layer are bonded together by the hot extrude mode of closing.
Described pet layer, intermediate layer and PE layer thickness ratio are 0.5: 1: 1.
The beneficial effects of the utility model: simple in structure; Close with the PE hot extrude after merging PP with modified PE, all better with PET, PE associativity after modified PE and PP merge, need not to use in process of production the AC agent, more environmental protection, while Decrease production cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with Fig. 1 the utility model is described further.
In the utility model, PET is PETG, and modified PE is the rare alkene copolymer of ethene-acetic acid, and PE is polypropylene.
A kind of novel PET laminated film comprises three layers, is respectively pet layer 1, intermediate layer 2, PE layer 3, and described intermediate layer 2 is the mixed layer of modified PE and PP.
Described modified PE is 4410-2HDPE.
Described intermediate layer 2 and PE layer 3 are bonded together by the hot extrude mode of closing.
Described pet layer 1, intermediate layer 2 and PE layer 3 thickness proportion are 0.5: 1: 1.
In actual production process, close with the PE hot extrude after merging PP with modified PE, after modified PE and PP merge and PET, PE associativity all better, need not to use in process of production the AC agent, more environmental protection has further reduced the cost of enterprise, has also reduced the harmful effect to environment.
Although above the specific embodiment of the present utility model has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned embodiment according to conception of the present utility model and change and modification; when its function that produces does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection domain of the present utility model.
Claims (4)
1. a novel PET laminated film comprises three layers, is respectively pet layer, intermediate layer, PE layer, it is characterized in that described intermediate layer is the mixed layer of modified PE and PP.
2. a kind of novel PET laminated film according to claim 1 is characterized in that described modified PE is 4410-2HDPE.
3. a kind of novel PET laminated film according to claim 1 is characterized in that described intermediate layer and PE layer are bonded together by the hot extrude mode of closing.
4. a kind of novel PET laminated film according to claim 1 is characterized in that described pet layer, intermediate layer and PE layer thickness ratio are 0.5: 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220196212 CN202847029U (en) | 2012-05-04 | 2012-05-04 | Novel PET composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220196212 CN202847029U (en) | 2012-05-04 | 2012-05-04 | Novel PET composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202847029U true CN202847029U (en) | 2013-04-03 |
Family
ID=47978263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220196212 Expired - Fee Related CN202847029U (en) | 2012-05-04 | 2012-05-04 | Novel PET composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202847029U (en) |
-
2012
- 2012-05-04 CN CN 201220196212 patent/CN202847029U/en not_active Expired - Fee Related
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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: 20130403 Termination date: 20150504 |
|
| EXPY | Termination of patent right or utility model |