CN202412843U - Low-temperature-resistant impact-resistant high-barrier film - Google Patents
Low-temperature-resistant impact-resistant high-barrier film Download PDFInfo
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- CN202412843U CN202412843U CN201120570887XU CN201120570887U CN202412843U CN 202412843 U CN202412843 U CN 202412843U CN 201120570887X U CN201120570887X U CN 201120570887XU CN 201120570887 U CN201120570887 U CN 201120570887U CN 202412843 U CN202412843 U CN 202412843U
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Abstract
The utility model provides a low-temperature-resistant impact-resistant high-barrier film. The low-temperature-resistant impact-resistant high-barrier film consists of a first thermoplastic elastomer impact-resistant layer, a first polyethylene layer, a first binding agent layer, a first barrier layer, a second barrier layer, a third barrier layer, a second binding agent layer, a second polyethylene layer and a second thermoplastic elastomer impact-resistant layer which are compounded in sequence. The low-temperature-resistant impact-resistant high-barrier film provided by the utility model has the advantages that the first thermoplastic elastomer impact-resistant layer and the second thermoplastic elastomer impact-resistant layer are respectively the outermost layer and the innermost layer, and are filled with thermoplastic elastomer, and the thermoplastic elastomer has excellent toughness and processing performance, and can adjust the impact resistance of the film, so that the film can keep good impact resistance at a low temperature, and can meet the use requirement of the packaging film. The film provided by the utility model has a nine-layer structure, and also has the advantages of good barrier performance, low-temperature resistance and impact resistance.
Description
Technical field
The utility model belongs to the functional membrane technical field, relates in particular to a kind of low-temperature resistant and shock resistant high-resistant diaphragm.
Background technology
Along with the chemical industry development of technology, the functionalization development trend of plastic film is day by day obvious, and wherein, the high-barrier plastic film is one of function film at present with fastest developing speed.High-resistant diaphragm is meant the protective packing content, avoids small-molecule substances such as pollutant and oxygen, steam, liquid and smell to infiltrate, and also can prevent the packing film that pack content is oozed out simultaneously.The high barrier of high-resistant diaphragm is meant under 23 ℃, the standard state of 65% relative humidity, the transit dose＜5ml/m of oxygen
2Below the day, the transit dose＜2g/m of water vapour
2D.
In the packaging for foodstuff field, especially for packings such as the low temperature meat product that is used as pasteurize, fish, aquatic products, it not only need satisfy high barrier, and need satisfy low temperature resistant requirement.In addition, in order to increase the eye appeal of product, low temperature resistant Obstruct membrane generally need be close to product, and the maintenance product design is attractive in appearance, cleaning is beautiful; Simultaneously, low temperature resistant Obstruct membrane also need have good sealing property and good resistance to impact, with the better protection pack content.Prior art is generally with material packing films such as polyethylene, and still, this type of material toughness at a lower temperature can weaken rapidly, thereby the shock resistance of film is weakened rapidly, thereby can not play the effect of protective packing content.
The utility model content
In view of this, the technical problem that the utility model will solve is to provide a kind of low-temperature resistant and shock resistant high-resistant diaphragm, and said low-temperature resistant and shock resistant high-resistant diaphragm has good barrier and low-temperature impact resistance.
The utility model provides a kind of low-temperature resistant and shock resistant high-resistant diaphragm, comprising:
The first thermoplastic elastomer (TPE) anti-impacting layer;
Be compounded in first polyethylene layer on the said first thermoplastic elastomer (TPE) anti-impacting layer;
Be compounded in first adhesive layer on said first polyethylene layer;
Be compounded in first barrier layer on said first adhesive layer;
Be compounded in second barrier layer on said first barrier layer;
Be compounded in the 3rd barrier layer on said second barrier layer;
Be compounded in second adhesive layer on said the 3rd barrier layer;
Be compounded in second polyethylene layer on said second adhesive layer;
Be compounded in the second thermoplastic elastomer (TPE) anti-impacting layer on said second polyethylene layer.
Preferably, the said first thermoplastic elastomer (TPE) anti-impacting layer is the first rubber/polythene thermoplastic elastomer anti-impacting layer.
Preferably, said first barrier layer is the first polyamide barrier layer.
Preferably, said first barrier layer is first evoh layer.
Preferably, said second barrier layer is the second polyamide barrier layer.
Preferably, said second barrier layer is second evoh layer.
Preferably, said the 3rd barrier layer is the 3rd polyamide barrier layer.
Preferably, said the 3rd barrier layer is the triethylene-ethenol copolymer layer.
Preferably, the said second thermoplastic elastomer (TPE) anti-impacting layer is the second rubber/polythene thermoplastic elastomer anti-impacting layer.
Preferably, the thickness of said low-temperature resistant and shock resistant high-resistant diaphragm is 25 μ m～250 μ m.
Compared with prior art, the low-temperature resistant and shock resistant high-resistant diaphragm that provides of the utility model is made up of the first mutually compound successively thermoplastic elastomer (TPE) anti-impacting layer, first polyethylene layer, first adhesive layer, first barrier layer, second barrier layer, the 3rd barrier layer, second adhesive layer, second polyethylene layer and the second thermoplastic elastomer (TPE) anti-impacting layer.In the low-temperature resistant and shock resistant high-resistant diaphragm that the utility model provides; The said first thermoplastic elastomer (TPE) anti-impacting layer and the second thermoplastic elastomer (TPE) anti-impacting layer are respectively outermost layer and innermost layer; Wherein be added with thermoplastic elastomer (TPE), said thermoplastic elastomer (TPE) has excellent toughness and processing characteristics, the shock resistance that can regulate film; Thereby make film also keep favorable shock resistance at low temperatures, satisfy the instructions for use of packing film.The film that the utility model provides has 9 layers of structure, has good barrier performance and low-temperature resistant and shock resistant property.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the low-temperature resistant and shock resistant high-resistant diaphragm that Fig. 1 provides for the utility model embodiment.
The specific embodiment
In order to make those skilled in the art understand the technical scheme of the utility model better; Below in conjunction with the accompanying drawing and the specific embodiment the utility model is carried out clear, intactly description; Obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of low-temperature resistant and shock resistant high-resistant diaphragm, comprising:
The first thermoplastic elastomer (TPE) anti-impacting layer;
Be compounded in first polyethylene layer on the said first thermoplastic elastomer (TPE) anti-impacting layer;
Be compounded in first adhesive layer on said first polyethylene layer;
Be compounded in first barrier layer on said first adhesive layer;
Be compounded in second barrier layer on said first barrier layer;
Be compounded in the 3rd barrier layer on said second barrier layer;
Be compounded in second adhesive layer on said the 3rd barrier layer;
Be compounded in second polyethylene layer on said second adhesive layer;
Be compounded in the second thermoplastic elastomer (TPE) anti-impacting layer on said second polyethylene layer.
The low-temperature resistant and shock resistant high-resistant diaphragm that the utility model provides is made up of the first mutually compound successively thermoplastic elastomer (TPE) anti-impacting layer, first polyethylene layer, first adhesive layer, first barrier layer, second barrier layer, the 3rd barrier layer, second adhesive layer, second polyethylene layer and the second thermoplastic elastomer (TPE) anti-impacting layer.In the low-temperature resistant and shock resistant high-resistant diaphragm that the utility model provides; The said first thermoplastic elastomer (TPE) anti-impacting layer and the second thermoplastic elastomer (TPE) anti-impacting layer are respectively outermost layer and innermost layer; Wherein be added with thermoplastic elastomer (TPE), said thermoplastic elastomer (TPE) has excellent toughness and processing characteristics, the shock resistance that can regulate film; Thereby make film also keep favorable shock resistance at low temperatures, satisfy the instructions for use of packing film.
Referring to Fig. 1, the structural representation of the low-temperature resistant and shock resistant high-resistant diaphragm that Fig. 1 provides for the utility model embodiment, wherein; 1 is the first thermoplastic elastomer (TPE) anti-impacting layer, and 2 is first polyethylene layer, and 3 is first adhesive layer; 4 is first barrier layer, and 5 is second barrier layer, and 6 is the 3rd barrier layer; 7 is second adhesive layer, and 8 is second polyethylene layer, and 9 is the second thermoplastic elastomer (TPE) anti-impacting layer.
The first thermoplastic elastomer (TPE) anti-impacting layer 1 is the outermost layer of said low-temperature resistant and shock resistant high-resistant diaphragm, and the surface has the effect that improves the Film Optics performance through corona treatment; Simultaneously, wherein be added with thermoplastic elastomer (TPE), can improve the toughness of film, make film also keep favorable shock resistance at low temperatures.In the utility model, the first thermoplastic elastomer (TPE) anti-impacting layer 1 is mainly formed by polyethylene (PE) resin, not only can improve the optical property of film, and mechanical property that can enhancement film.In said polyvinyl resin, be added with thermoplastic elastomer (TPE); Said thermoplastic elastomer (TPE) is preferably POE; Said POE adopts the ethene of metallocene catalyst and the thermoplastic elastomer (TPE) that octene is realized in-situ polymerization; Have following characteristics: the flexible chain coiled structure of (1) octene and the ethylene chain of crystallization make the toughness of its existing excellence that good processability arranged again as the physical crosslinking point; (2) do not have unsaturated double-bond in the POE molecular structure, have good ageing-resistant performance; (3) the POE narrow molecular weight distribution has good mobility, and is good with compatible polyolefin property; (4) POE has good flowability, can improve the dispersion effect of filler, also can improve the weld mark strength of goods simultaneously.The narrow molecular weight distribution of POE; The side octyl group is longer than the side ethyl in the molecular structure; In molecular structure, can form tie-point, between each composition, play connection, cushioning effect, make system receive play a part when impacting to disperse, shock absorbing can; Reduce crazing because of the stressed chance that develops into crackle, thereby improved the impact strength of system.When system receives tension force, because bigger deformation can take place the formed network-like structure of these tie-points, so the elongation at break of system has significant increase.Thus, the first thermoplastic elastomer (TPE) anti-impacting layer 1 has favorable shock resistance, thereby can avoid its shock resistance under cryogenic conditions to descend rapidly.In the present embodiment, the addition of said thermoplastic elastomer (TPE) is lower than 20%.
First adhesive layer 3 is compounded on first polyethylene layer 2, increases the compatibility between first polyethylene layer 2 and first barrier layer 4.First adhesive layer 3 is by binding resin, like formation such as TIE.
The 3rd barrier layer 6 is compounded on second barrier layer 5, plays resistance oxygen, iris action such as block water, and improves the barrier property of said low haze Obstruct membrane.The 3rd barrier layer 6 is mainly formed by polyamide.In other embodiments, the 3rd barrier layer 6 can also be formed by other resins, like ethylene-vinyl alcohol copolymer etc., as long as have good barrier performance.When the 3rd barrier layer 6 was formed by the ethylene-vinyl alcohol copolymer resin, the 3rd barrier layer 6 was the triethylene-ethenol copolymer barrier layer.
In the utility model; The effect of first barrier layer 4, second barrier layer 5 and the 3rd barrier layer 6 all is to improve the barrier property of said low haze Obstruct membrane; It all can be formed by the good resin of barrier properties such as ethylene-vinyl alcohol copolymer or polyamide, forms by polyamide like first barrier layer 4, second barrier layer 5 and the 3rd barrier layer 6, perhaps forms by the ethylene-vinyl alcohol copolymer resin; Perhaps arbitrarily two-layerly form by polyamide; Another layer is formed by the ethylene-vinyl alcohol copolymer resin, is perhaps arbitrarily two-layerly formed by the ethylene-vinyl alcohol copolymer resin, and another layer formed by the ethylene-vinyl alcohol copolymer resin.
Second adhesive layer 7 is compounded on the 3rd barrier layer 6, increases the compatibility between the 3rd barrier layer 6 and second polyethylene layer 8.Second adhesive layer 7 is by binding resin, like formation such as TIE.
The second thermoplastic elastomer (TPE) anti-impacting layer 9 is compounded on second polyethylene layer 8; It is the innermost layer of said low-temperature resistant and shock resistant high-resistant diaphragm; Have and hinder wet, heat-sealing function; And be added with thermoplastic elastomer (TPE), and make this layer have favorable shock resistance, its shock resistance can not descend rapidly yet at low temperatures.The second thermoplastic elastomer (TPE) anti-impacting layer 9 is mainly formed by polyvinyl resin, is added with thermoplastic elastomer (TPE), and the addition of said thermoplastic elastomer (TPE) is preferably below 20%.In other embodiments, the second thermoplastic elastomer (TPE) anti-impacting layer 9 also can be formed by ethylene-vinyl acetate copolymer resin, and adds thermoplastic elastomer (TPE) therein, improves its shock resistance.
In the low-temperature resistant and shock resistant high-resistant diaphragm that the utility model provides; The said first thermoplastic elastomer (TPE) anti-impacting layer and the second thermoplastic elastomer (TPE) anti-impacting layer are respectively outermost layer and innermost layer; Wherein be added with thermoplastic elastomer (TPE), said thermoplastic elastomer (TPE) has excellent toughness and processing characteristics, the shock resistance that can regulate film; Thereby make film also keep favorable shock resistance at low temperatures, satisfy the instructions for use of packing film.The film that the utility model provides has 9 layers of structure, has good barrier performance and low-temperature resistant and shock resistant property.
The gross thickness of the low-temperature resistant and shock resistant high-resistant diaphragm that the utility model provides can be 25 μ m～250 μ m; Wherein, The gross thickness of three barrier layers can be about 10% of low-temperature resistant and shock resistant high-resistant diaphragm gross thickness, and to this, the utility model does not have particular restriction; Those skilled in the art can carry out the adjustment of thickness according to actual barriering effect; When being 100 μ m like gross thickness, from outside to inside, the thickness of each layer can be followed successively by: 10,8.0,11.5,11.0,10.5,8.0,9.0,8.0 and 24.0.
The utility model adopts multi-layer co-extruded method to prepare said low-temperature resistant and shock resistant high-resistant diaphragm; Not only have good compound peel strength, superior environmental resistance, chemical-resistance, good mechanical performance; And have good barrier performance and a low-temperature resistant and shock resistant performance, can be as packings such as the low temperature meat product of pasteurize, fish, aquatic products.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (10)
1. a low-temperature resistant and shock resistant high-resistant diaphragm is characterized in that, comprising:
The first thermoplastic elastomer (TPE) anti-impacting layer;
Be compounded in first polyethylene layer on the said first thermoplastic elastomer (TPE) anti-impacting layer;
Be compounded in first adhesive layer on said first polyethylene layer;
Be compounded in first barrier layer on said first adhesive layer;
Be compounded in second barrier layer on said first barrier layer;
Be compounded in the 3rd barrier layer on said second barrier layer;
Be compounded in second adhesive layer on said the 3rd barrier layer;
Be compounded in second polyethylene layer on said second adhesive layer;
Be compounded in the second thermoplastic elastomer (TPE) anti-impacting layer on said second polyethylene layer.
2. low-temperature resistant and shock resistant high-resistant diaphragm according to claim 1 is characterized in that, the said first thermoplastic elastomer (TPE) anti-impacting layer is the first rubber/polythene thermoplastic elastomer anti-impacting layer.
3. low-temperature resistant and shock resistant high-resistant diaphragm according to claim 1 is characterized in that, said first barrier layer is the first polyamide barrier layer.
4. low-temperature resistant and shock resistant high-resistant diaphragm according to claim 1 is characterized in that, said first barrier layer is first evoh layer.
5. low-temperature resistant and shock resistant high-resistant diaphragm according to claim 1 is characterized in that, said second barrier layer is the second polyamide barrier layer.
6. low-temperature resistant and shock resistant high-resistant diaphragm according to claim 1 is characterized in that, said second barrier layer is second evoh layer.
7. low-temperature resistant and shock resistant high-resistant diaphragm according to claim 1 is characterized in that, said the 3rd barrier layer is the 3rd polyamide barrier layer.
8. low-temperature resistant and shock resistant high-resistant diaphragm according to claim 1 is characterized in that, said the 3rd barrier layer is the triethylene-ethenol copolymer layer.
9. low-temperature resistant and shock resistant high-resistant diaphragm according to claim 1 is characterized in that, the said second thermoplastic elastomer (TPE) anti-impacting layer is the second rubber/polythene thermoplastic elastomer anti-impacting layer.
10. according to any described low-temperature resistant and shock resistant high-resistant diaphragm of claim 1～9, it is characterized in that the thickness of said low-temperature resistant and shock resistant high-resistant diaphragm is 25 μ m～250 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120570887XU CN202412843U (en) | 2011-12-30 | 2011-12-30 | Low-temperature-resistant impact-resistant high-barrier film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120570887XU CN202412843U (en) | 2011-12-30 | 2011-12-30 | Low-temperature-resistant impact-resistant high-barrier film |
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| Publication Number | Publication Date |
|---|---|
| CN202412843U true CN202412843U (en) | 2012-09-05 |
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ID=46737634
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120570887XU Expired - Lifetime CN202412843U (en) | 2011-12-30 | 2011-12-30 | Low-temperature-resistant impact-resistant high-barrier film |
Country Status (1)
| Country | Link |
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| CN (1) | CN202412843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786517A (en) * | 2012-10-26 | 2014-05-14 | 锣洋科技股份有限公司 | Decorative film, decorative molding element and decorative molding process |
| CN106715111A (en) * | 2014-09-30 | 2017-05-24 | Sika技术股份公司 | Barrier layers on sealing membranes |
-
2011
- 2011-12-30 CN CN201120570887XU patent/CN202412843U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786517A (en) * | 2012-10-26 | 2014-05-14 | 锣洋科技股份有限公司 | Decorative film, decorative molding element and decorative molding process |
| CN106715111A (en) * | 2014-09-30 | 2017-05-24 | Sika技术股份公司 | Barrier layers on sealing membranes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |