CN207954910U - Surface layer is the biaxial tension nylon co-extrusion film of polyester - Google Patents
Surface layer is the biaxial tension nylon co-extrusion film of polyester Download PDFInfo
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- CN207954910U CN207954910U CN201721546277.XU CN201721546277U CN207954910U CN 207954910 U CN207954910 U CN 207954910U CN 201721546277 U CN201721546277 U CN 201721546277U CN 207954910 U CN207954910 U CN 207954910U
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Abstract
The utility model provides the biaxial tension nylon co-extrusion film that a kind of surface layer is polyester, including the sequentially connected functional layer made of coextrusion casting and stretch processes, sandwich layer, composite layer；The functional layer is polyester copolymer resin nitride layer, and the sandwich layer is adhesive resin layer, and the composite layer is amide resin.The overall thickness of the co-extrusion film is 10um~30um.Co-extrusion film provided by the utility model overcomes the deficiencies in the prior art, and percent thermal shrinkage is low, there is high resistant to deaden moist, the corrosion of surface electrolyte resistance, and product cost is low, manufacture course of products environmental protection.
Description
Technical field
The utility model is related to the biaxial tension nylon co-extrusion films that a kind of surface layer is polyester, belong to field of packaging material.
Background technology
Common lithium battery pack package material mainly has box hat, aluminum hull, aluminum plastic film etc..Compared to packing timbers such as box hat, aluminum hulls
Material, aluminum plastic film have the characteristics that light, thickness is thin, appearance design is flexible, are increasingly becoming the market mainstream.
Currently, aluminum plastic film generally does surface layer using polyamide film (PA), but it intolerant to electrolytic corrosion and is easy tod produce
Albinism.Because of resistance to electricity such as polyester film polyethylene terephthalate (PET)/polybutylene terephthalate (PBT)s (PBT)
It solves liquid and good moldability, power aluminum plastic film surface layer adheres to a strata membrane of lipoprotein, electrolyte resistance again on the basis of original nylon layer
It is excellent.But glue and VOC emission amount height are used there are secondary in its production process, and overall cost is higher, is unfavorable for market
Large-scale promotion and use.
Utility model content
The technical problems to be solved in the utility model is：The electrolyte resistance performance for how promoting packaging film surface, drops simultaneously
Low cost of goods manufactured, and keep manufacture course of products more environmentally-friendly.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide the two-way drawing that a kind of surface layer is polyester
Stretch nylon co-extrusion film, it is characterised in that：Including crossing sequentially connected functional layer, core made of coextrusion casting and stretch processes
Layer, composite layer；The functional layer is polyester copolymer resin nitride layer, and the sandwich layer is adhesive resin layer, and the composite layer is acyl
Amine system resin layer.
Preferably, the overall thickness of the co-extrusion film is 10um~30um.
Preferably, the function layer thickness is the 20%~35% of co-extrusion film overall thickness, and the core layer thickness is co-extrusion film
The 15%~30% of overall thickness, the composite bed thickness are the 40%~60% of co-extrusion film overall thickness.
Preferably, the functional layer polyester copolymer resin object is pet copolymer, gathers to benzene two
Formic acid butanediol ester copolymer, gathers in naphthalenedicarboxylic acid butanediol ester copolymer polyethylene naphthalate copolymer
It is one or more of.It is adhered agent containing anti-in the functional layer, anti-to be adhered agent be that gluey or chain silica, content are
0.2wt%~1wt%.
Preferably, the sandwich layer resin of binding property be acid-modified polyolefin resin, ethylene-acrylic acid copolymer, ethylene and
The copolymer of acrylic acid derivative, copolymer from ethylene and methacrylic acid, ethylene and methacrylic acid derivative copolymer with
And any one in above-mentioned resin modified object.
It is highly preferred that the acid modified polyolefin tree is maleic anhydride inoculated polypropylene, acrylic acid-grafted polypropylene, methyl-prop
Olefin(e) acid ethylene oxidic ester/styrene fusion-grafting polypropylene, methyl-methacrylate grafted polypropylene, maleic anhydride grafted polyethylene,
One or more of dibutyl maleate grafted polyethylene.Preferably, composite layer amide system resin is nylon-6 resin.
Above-mentioned surface layer is that the preparation method step of the biaxial tension nylon co-extrusion film of polyester is：
Step 1：Polyester copolymer resin object, resin of binding property, amide system resin are separately added into 3 extruders and are melted,
The melt of extrusion separately flows into the runner of multiple flow passages coextruder, and three layers of melt are in head mouth after chill roll is cooled and shaped
Obtain co-extrusion nylon film first product；
Step 2：By co-extrusion nylon film first product elder generation's longitudinal stretching and thermal finalization, then cross directional stretch and thermal finalization；Most
By cooling, corona, winding, cutting, the biaxial tension nylon coextruded film that the surface layer is polyester is obtained.
Preferably, in the step 1, melting temperature is 260 DEG C~280 DEG C, the temperature of extruder die head is 260 DEG C~
270℃；The temperature of cooling and shaping is 20~45 DEG C.
Preferably, in the step 2, longitudinal drawing temperature is 80~120 DEG C, and longitudinal stretching ratio is 3.1~3.4, longitudinal
Heat setting temperature is 60 DEG C~100 DEG C after stretching；Transverse drawing temperature is 100~140 DEG C, and cross directional stretch ratio is 3.8~4.2,
Heat setting temperature is 80 DEG C~140 DEG C after stretching horizontally；Cooling temperature is 20~45 DEG C.
Co-extrusion film provided by the utility model overcomes the deficiencies in the prior art, and percent thermal shrinkage is low, there is high resistant to deaden wet
Property, the corrosion of surface electrolyte resistance, and product cost is low, manufacture course of products environmental protection.
Description of the drawings
Fig. 1 is the biaxial tension nylon co-extrusion membrane structure diagram that surface layer is polyester.
Specific implementation mode
With reference to specific embodiment, the utility model is expanded on further.
Embodiment 1
The nylon co-extrusion film of 15um is produced using 3 layers of co-extrusion flat membrane method biaxial tension equipment, specific structure see the table below.
One, dispensing
Functional layer：Weigh 36~40 parts of polyethylene terephthalate, 0.3 part of silica；
Sandwich layer：Weigh 23~26 parts of maleic anhydride inoculated polypropylene resin；
Composite layer：Weigh 35~39 parts of -6 resin of polyamide nylon.
Two, production method is as follows：
Step 1：Polyester copolymer resin object, resin of binding property, amide system resin are separately added into 3 extruders and are melted,
The melt of extrusion separately flows into the runner of multiple flow passages coextruder, and three layers of melt are in head mouth after chill roll is cooled and shaped
Obtain co-extrusion nylon film first product；
Step 2：By co-extrusion nylon film first product elder generation's longitudinal stretching and thermal finalization, then cross directional stretch and thermal finalization；Most
By cooling, corona, winding, cutting, the biaxial tension nylon coextruded film that the surface layer is polyester is obtained.
In step 1, polyester melting temperature is 280 DEG C, and maleic anhydride inoculated polypropylene resin melt temperature is 280 DEG C, is gathered
The temperature of 280 DEG C of amide resin melting temperature, die head is 270 DEG C；It is 45 DEG C to be cooled and shaped chill-roll temperature.
In step 2, longitudinal drawing temperature is 120 DEG C, and longitudinal stretching ratio is heat setting temperature after 3.1~3.4 longitudinal stretchings
100℃；Transverse drawing temperature is 140 DEG C, and cross directional stretch ratio is 3.8~4.2；140 DEG C of heat setting temperature after stretching horizontally.It is cooling
Temperature 45 C, and sided corona treatment is carried out to composite surface, the two-way nylon co-extrusion film that a kind of surface layer is polyester is made.
Obtained surface layer be polyester biaxial tension nylon co-extrusion membrane structure as shown in Figure 1, by functional layer 1, sandwich layer 2,
Composite layer 3 is sequentially connected composition.
Embodiment 2
The nylon co-extrusion film of 25um is produced using 3 layers of co-extrusion flat membrane method biaxial tension equipment, specific structure see the table below.
One, dispensing
Functional layer：Weigh 26~30 parts of polyethylene terephthalate, 0.7 part of silica；
Sandwich layer：Weigh 11~15 parts of maleic anhydride grafted polyethylene resin；
Composite layer：Weigh 57~61 parts of -6 resin of polyamide nylon.
Two, production method is as follows：
Step 1：Polyester copolymer resin object, resin of binding property, amide system resin are separately added into 3 extruders and are melted,
The melt of extrusion separately flows into the runner of multiple flow passages coextruder, and three layers of melt are in head mouth after chill roll is cooled and shaped
Obtain co-extrusion nylon film first product；
Step 2：By co-extrusion nylon film first product elder generation's longitudinal stretching and thermal finalization, then cross directional stretch and thermal finalization；Most
By cooling, corona, winding, cutting, the biaxial tension nylon coextruded film that the surface layer is polyester is obtained.
In step 1, polyester melting temperature is 275 DEG C, and maleic anhydride grafted polyethylene resin melt temperature is 275 DEG C, is gathered
The temperature of 275 DEG C of amide resin melting temperature, die head is 265 DEG C；It is 40 DEG C to be cooled and shaped chill-roll temperature.
In step 2, longitudinal drawing temperature is 110 DEG C, and longitudinal stretching ratio is 3.1~3.4, heat setting temperature after longitudinal stretching
80℃；Transverse drawing temperature is 120 DEG C, and cross directional stretch ratio is 3.8~4.2, after stretching horizontally 120 DEG C of heat setting temperature；It is cooling
30 DEG C of temperature, and sided corona treatment is carried out to composite surface, the two-way nylon co-extrusion film that a kind of surface layer is polyester is made.
Embodiment 3
The nylon co-extrusion film of 15um is produced using 3 layers of co-extrusion flat membrane method biaxial tension equipment, specific structure see the table below.
One, dispensing
Functional layer：Weigh 36~40 parts of polybutylene terephthalate (PBT), 0.3 part of silica；
Sandwich layer：Weigh 20~24 parts of ethylene acrylic acid co polymer (EAA) resin；
Composite layer：Weigh 38~42 parts of -6 resin of polyamide nylon.
Two, production method is as follows：
Step 1：Polyester copolymer resin object, resin of binding property, amide system resin are separately added into 3 extruders and are melted,
The melt of extrusion separately flows into the runner of multiple flow passages coextruder, and three layers of melt are in head mouth after chill roll is cooled and shaped
Obtain co-extrusion nylon film first product；
Step 2：By co-extrusion nylon film first product elder generation's longitudinal stretching and thermal finalization, then cross directional stretch and thermal finalization；Most
By cooling, corona, winding, cutting, the biaxial tension nylon coextruded film that the surface layer is polyester is obtained.
In step 1, polyester melting temperature is 270 DEG C, and ethylene acrylic acid co polymer melting temperature is 270 DEG C, polyamide resin
The temperature of 270 DEG C of fat melting temperature, die head is 265 DEG C；It is 30 DEG C to be cooled and shaped chill-roll temperature.
In step 2, longitudinal drawing temperature is 90 DEG C, and longitudinal stretching ratio is 3.1~3.4, heat setting temperature after longitudinal stretching
70℃；Transverse drawing temperature is 110 DEG C, and cross directional stretch ratio is 3.8~4.2, after stretching horizontally 100 DEG C of heat setting temperature.It is cooling
Temperature is 25 DEG C, and carries out sided corona treatment to composite surface, and the two-way nylon co-extrusion film that a kind of surface layer is polyester is made.
Embodiment 4
The nylon co-extrusion film of 25um is produced using 3 layers of co-extrusion flat membrane method biaxial tension equipment, structure see the table below.
One, dispensing
Functional layer：Weigh 26~30 parts of polybutylene terephthalate (PBT), 0.7 part of silica；
Sandwich layer：11~15 parts of ethylene methyl methacrylate copolymer (EMMA) is weighed,
Composite layer：Weigh 58~62 parts of -6 resin of polyamide nylon.
Two, production method is as follows：
Step 1：Polyester copolymer resin object, resin of binding property, amide system resin are separately added into 3 extruders and are melted,
The melt of extrusion separately flows into the runner of multiple flow passages coextruder, and three layers of melt are in head mouth after chill roll is cooled and shaped
Obtain co-extrusion nylon film first product；
Step 2：By co-extrusion nylon film first product elder generation's longitudinal stretching and thermal finalization, then cross directional stretch and thermal finalization；Most
By cooling, corona, winding, cutting, the biaxial tension nylon coextruded film that the surface layer is polyester is obtained.
In step 1, polyester melting temperature is 260 DEG C, and ethylene acrylic acid co polymer melting temperature is 260 DEG C, polyamide resin
The temperature of 260 DEG C of fat melting temperature, die head is 260 DEG C；It is 20 DEG C to be cooled and shaped chill-roll temperature.
In step 2, longitudinal drawing temperature is 80 DEG C, and longitudinal stretching ratio is 3.1~3.4, heat setting temperature after longitudinal stretching
60℃；Transverse drawing temperature is 100 DEG C, and cross directional stretch ratio is 3.8~4.2, after stretching horizontally 80 DEG C of heat setting temperature；Cooling temperature
Degree is 20 DEG C, and carries out sided corona treatment to composite surface, and the two-way nylon co-extrusion film that a kind of surface layer is polyester is made.
Biaxial tension nylon co-extrusion film, test data and experimental phenomena made from 4 embodiments are as follows：
Electrolyte resistance corrosion test：
Conclusion：Above-mentioned experimental data and experimental phenomena show that biaxial tension co-extrusion film provided by the utility model is heat-shrinked
Rate is low, there is high resistant to deaden moist, and surface electrolyte resistance corrodes.
The above, the only preferred embodiment of the utility model, it is in any form and substantive not to the utility model
On limitation, it is noted that for those skilled in the art, in the premise for not departing from the utility model method
Under, several improvement and supplement can be also made, these are improved and supplement also should be regarded as the scope of protection of the utility model.It is all ripe
Professional and technical personnel is known, in the case where not departing from the spirit and scope of the utility model, when using disclosed above
Technology contents and the equivalent variations of a little variation, modification and evolution made, be the equivalent embodiment of the utility model；Together
When, all substantial technologicals according to the utility model to the variation, modification and evolution of any equivalent variations made by above-described embodiment,
In the range of still falling within the technical solution of the utility model.
Claims (6)
1. a kind of surface layer is the biaxial tension nylon co-extrusion film of polyester, it is characterised in that：Including passing through coextrusion casting and two-way drawing
Sequentially connected functional layer (1), sandwich layer (2), composite layer (3) made of stretching process；The functional layer (1) is polyester copolymer resin
Nitride layer, the sandwich layer (2) are adhesive resin layer, and the composite layer (3) is amide resin.
2. a kind of surface layer as described in claim 1 is the biaxial tension nylon co-extrusion film of polyester, it is characterised in that：The co-extrusion
The overall thickness of film is 10um~30um.
3. a kind of surface layer as claimed in claim 1 or 2 is the biaxial tension nylon co-extrusion film of polyester, it is characterised in that：It is described
Functional layer (1) thickness be co-extrusion film overall thickness 20%~35%, sandwich layer (2) thickness be co-extrusion film overall thickness 15%~
30%, composite layer (3) thickness is the 40%~60% of co-extrusion film overall thickness.
4. a kind of surface layer as described in claim 1 is the biaxial tension nylon co-extrusion film of polyester, it is characterised in that：The sandwich layer
Resin of binding property is copolymer, the second of acid-modified polyolefin resin, ethylene-acrylic acid copolymer, ethylene and acrylic acid derivative
Alkene and methacrylic acid copolymer, the copolymer of ethylene and methacrylic acid derivative and arbitrary in above-mentioned resin modified object
It is a kind of.
5. a kind of surface layer as claimed in claim 4 is the biaxial tension nylon co-extrusion film of polyester, it is characterised in that：The acid changes
Property vistanex be maleic anhydride inoculated polypropylene, acrylic acid-grafted polypropylene, glycidyl methacrylate/styrene
Fusion-grafting polypropylene, methyl-methacrylate grafted polypropylene, maleic anhydride grafted polyethylene, dibutyl maleate grafting are poly-
One or more of ethylene.
6. a kind of surface layer as described in claim 1 is the biaxial tension nylon co-extrusion film of polyester, it is characterised in that：It is described compound
Layer amide system resin is nylon-6 resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546277.XU CN207954910U (en) | 2017-11-17 | 2017-11-17 | Surface layer is the biaxial tension nylon co-extrusion film of polyester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546277.XU CN207954910U (en) | 2017-11-17 | 2017-11-17 | Surface layer is the biaxial tension nylon co-extrusion film of polyester |
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| CN207954910U true CN207954910U (en) | 2018-10-12 |
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| CN201721546277.XU Active CN207954910U (en) | 2017-11-17 | 2017-11-17 | Surface layer is the biaxial tension nylon co-extrusion film of polyester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825794A (en) * | 2017-11-17 | 2018-03-23 | 上海紫江新材料科技有限公司 | A kind of top layer is biaxial tension nylon co-extrusion film of polyester and preparation method thereof |
| CN112297555A (en) * | 2020-10-05 | 2021-02-02 | 江苏双星彩塑新材料股份有限公司 | Heat-shrinkable polyester film and manufacturing method thereof |
-
2017
- 2017-11-17 CN CN201721546277.XU patent/CN207954910U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825794A (en) * | 2017-11-17 | 2018-03-23 | 上海紫江新材料科技有限公司 | A kind of top layer is biaxial tension nylon co-extrusion film of polyester and preparation method thereof |
| CN112297555A (en) * | 2020-10-05 | 2021-02-02 | 江苏双星彩塑新材料股份有限公司 | Heat-shrinkable polyester film and manufacturing method thereof |
| CN112297555B (en) * | 2020-10-05 | 2021-12-10 | 江苏双星彩塑新材料股份有限公司 | Heat-shrinkable polyester film and manufacturing method thereof |
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