CN110450490A - A kind of BOPE film and preparation method thereof - Google Patents
A kind of BOPE film and preparation method thereof Download PDFInfo
- Publication number
- CN110450490A CN110450490A CN201910711741.3A CN201910711741A CN110450490A CN 110450490 A CN110450490 A CN 110450490A CN 201910711741 A CN201910711741 A CN 201910711741A CN 110450490 A CN110450490 A CN 110450490A
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- Prior art keywords
- lldpe
- layer
- upper epidermis
- film
- bope
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The present invention relates to a kind of BOPE film and preparation method thereof, the three-decker which is made of sandwich layer, upper epidermis and layer；The sandwich layer is 1%-3%wt antistatic master batch and 97-99%wt M-LLDPE；The upper epidermis is 2%-4%wt antistatic master batch and 96%-98%wt M-LLDPE；The layer is 3%-5%wt resist blocking and that masterbatch and 95%-97%wt M-LLDPE；The antistatic master batch is the mixture of amine ethoxylate, single hard acid glycerolipid and M-LLDPE, and the anti-stick masterbatch is oleamide and the mixture of M-LLDPE；BOPE film prepared by the present invention has greatly improved in terms of physical property than the polyethylene film of tradition blow molding or casting method production, has the advantages that transparency is high, and heat sealability is good, and vertically and horizontally tensile strength is good；Especially in the case where thickness reduces 50%, key performance still reaches the performances of other polyethylene films.
Description
Technical field
The present invention relates to polyolefin film technical fields, and in particular to a kind of BOPE film and preparation method thereof.
Background technique
Traditional biaxial orientation step drawing technique is mainly used for polypropylene (PP) film, nylon (PA) film and polyester
(PET) production of film etc., common polythene (PE) raw material due to itself structure and crystallization situation can not be produced with the technique,
And traditional IPE film, CPE film Shortcomings in terms of physical property by blow molding or casting method production, it is packing
Field lacks effective competitiveness.
Summary of the invention
The purpose of the present invention is to provide a kind of BOPE films and preparation method thereof, improve the physical of polyethylene film
Energy.
To achieve the above object, the invention adopts the following technical scheme:
A kind of BOPE film, the three-decker being made of sandwich layer, upper epidermis and layer；The sandwich layer is 1%-3%
Wt antistatic master batch and 97-99%wt M-LLDPE；The upper epidermis is 2%-4%wt antistatic master batch and 96%-98%wt
M-LLDPE；The layer is 3%-5%wt resist blocking and that masterbatch and 95%-97%wt M-LLDPE；The antistatic master batch
For the mixture of amine ethoxylate, single hard acid glycerolipid and M-LLDPE, the anti-stick masterbatch is oleamide and M-LLDPE
Mixture.
Preferably, the upper epidermis and the thickness of layer are 1-2 μm.
Preferably, the upper epidermis is corona processing layer.
The present invention also provides the preparation methods of above-mentioned BOPE film, comprising the following steps:
A, core layer raw material is heated into melting by proportion and dry be sent in main extruder, upper epidermis raw material is by proportion
The heating melting in a subsidiary extruder, layer raw material pass through proportion heating melting in a subsidiary extruder；By institute
The three layers of melt obtained after filter screen filtration, converge extrusion respectively in three-decker die head；
B, the melt that step a is squeezed out is attached into chilling on sharp cooling roll with compressed air and forms slab, cast tablets are passed through
Water-bath cooling, then slab after cooling is carried out with compressed air to remove water process；
C, longitudinal to extend by slab obtained by step b by preheating；
D, the film after longitudinal extend is preheated, then carry out thermal finalization after stretching horizontally；
E, film obtained by step d is flattened by the air-cooled trailer system that enters, and to upper epidermis face carry out sided corona treatment and
Winding obtains BOPE film.
Preferably, in the step a by resulting three layers of melt respectively by 400 mesh filter screens filtering after, in three-decker
Converge extrusion in die head, die head temperature is 232 DEG C.
Preferably, slab longitudinally extends at 100 DEG C -120 DEG C, extends by 70 DEG C of -100 DEG C of preheatings in the step c
Multiplying power is in 4.5-5.0.
Preferably, film is preheated in the step d with 85 DEG C -105 DEG C, is stretched at 100-120 DEG C, 125
DEG C -135 DEG C of thermal finalizations, stretching ratio 8.0-9.0.
The beneficial effects of the present invention are: BOPE film of the invention be using M-LLDPE (metallocene modified it is linear low
Density polyethylene) and corresponding auxiliary agent, made of laterally gradually being stretched behind first longitudinal direction；Than traditional blow molding or casting method
The polyethylene film of production has greatly improved in terms of physical property；The BOPE film of preparation is orientated with very high molecular weight
And crystalline orientation, there are excellent shock resistance and puncture resistance, deformation very little after especially impacting；It is with higher to stretch by force
Degree, intensity improve 2-8 times than existing IPE；Good in optical property, Film Haze reduce 30%-85%；Good the thickness uniformity,
In the case where thickness reduces 50%, key performance still reaches the performance of other polyethylene films, is suitble to high speed printing and Gao Sufu
It closes, additionally there is certain tearable property.
BOPE film of the invention can reduce cost for packaging field for producer, while recycle conveniently, have stronger
The market competitiveness.
Specific embodiment
The present invention will be further described combined with specific embodiments below:
Embodiment 1
A kind of BOPE film, the three-decker being made of sandwich layer, upper epidermis and layer；Sandwich layer is that 1%wt is antistatic
Masterbatch and 99%wt M-LLDPE；Upper epidermis is 2%wt antistatic master batch and 98%wt M-LLDPE；Layer is anti-for 3%wt
Adhesion masterbatch and 97%wt M-LLDPE；Antistatic master batch is the mixture of amine ethoxylate, single hard acid glycerolipid and M-LLDPE,
The anti-stick masterbatch is oleamide and the mixture of M-LLDPE.
The preparation method is as follows:
A, core layer raw material is heated into melting by proportion and dry be sent in main extruder, upper epidermis raw material is by proportion
The heating melting in a subsidiary extruder, layer raw material pass through proportion heating melting in a subsidiary extruder；By institute
The three layers of melt obtained after the filtering of 400 mesh filter screens, converge extrusion respectively in three-decker die head.Die head temperature is 232 DEG C.
B, the melt that step a is squeezed out is attached into chilling on 25 DEG C of sharp cooling rolls with compressed air and forms slab, by cast tablets
By water-bath cooling, then slab after cooling is carried out with compressed air removing water process.
C, slab obtained by step b is longitudinally extended, extension ratio is 4.5 by 70 DEG C of preheatings at 100 DEG C.
D, the film after longitudinal extend is preheated with 85 DEG C, is carried out at 100 DEG C after stretching horizontally, 125 DEG C of heat are fixed
Type, stretching ratio 8.0.
E, film obtained by step d is flattened by the air-cooled trailer system that enters, and to upper epidermis face carry out sided corona treatment and
Winding obtains BOPE film.
F, for BOPE film after Wetted constructures, finished product is made in cutting, packaging.
Embodiment 2
A kind of BOPE film, the three-decker being made of sandwich layer, upper epidermis and layer；Sandwich layer is that 3%wt is antistatic
Masterbatch and 97%wt M-LLDPE；Upper epidermis is 4%wt antistatic master batch and 96%wt M-LLDPE；Layer is anti-for 5%wt
Adhesion masterbatch and 95%wt M-LLDPE；Antistatic master batch is the mixture of amine ethoxylate, single hard acid glycerolipid and M-LLDPE,
The anti-stick masterbatch is oleamide and the mixture of M-LLDPE.
The preparation method is as follows:
A, core layer raw material is heated into melting by proportion and dry be sent in main extruder, upper epidermis raw material is by proportion
The heating melting in a subsidiary extruder, layer raw material pass through proportion heating melting in a subsidiary extruder；By institute
The three layers of melt obtained after the filtering of 400 mesh filter screens, converge extrusion respectively in three-decker die head.Die head temperature is 232 DEG C.
B, the melt that step a is squeezed out is attached into chilling on 25 DEG C of sharp cooling rolls with compressed air and forms slab, by cast tablets
By water-bath cooling, then slab after cooling is carried out with compressed air removing water process.
C, slab obtained by step b is longitudinally extended, extension ratio is 5.0 by 100 DEG C of preheatings at 120 DEG C.
D, the film after longitudinal extend is preheated with 105 DEG C, is carried out at 120 DEG C after stretching horizontally, 135 DEG C of heat are fixed
Type, stretching ratio 9.0.
E, film obtained by step d is flattened by the air-cooled trailer system that enters, and to upper epidermis face carry out sided corona treatment and
Winding obtains BOPE film.
F, for BOPE film after Wetted constructures, finished product is made in cutting, packaging.
Embodiment 3
A kind of BOPE film, the three-decker being made of sandwich layer, upper epidermis and layer；Sandwich layer is that 2%wt is antistatic
Masterbatch and 98%wt M-LLDPE；Upper epidermis is 3%wt antistatic master batch and 97%wt M-LLDPE；Layer is anti-for 4%wt
Adhesion masterbatch and 96%wt M-LLDPE；Antistatic master batch is the mixture of amine ethoxylate, single hard acid glycerolipid and M-LLDPE,
The anti-stick masterbatch is oleamide and the mixture of M-LLDPE.
The preparation method is as follows:
A, core layer raw material is heated into melting by proportion and dry be sent in main extruder, upper epidermis raw material is by proportion
The heating melting in a subsidiary extruder, layer raw material pass through proportion heating melting in a subsidiary extruder；By institute
The three layers of melt obtained after the filtering of 400 mesh filter screens, converge extrusion respectively in three-decker die head.Die head temperature is 232 DEG C.
B, the melt that step a is squeezed out is attached into chilling on 25 DEG C of sharp cooling rolls with compressed air and forms slab, by cast tablets
By water-bath cooling, then slab after cooling is carried out with compressed air removing water process.
C, slab obtained by step b is longitudinally extended, extension ratio is 4.8 by 85 DEG C of preheatings at 110 DEG C.
D, the film after longitudinal extend is preheated with 95 DEG C, is carried out at 110 DEG C after stretching horizontally, 130 DEG C of heat are fixed
Type, stretching ratio 8.5.
E, film obtained by step d is flattened by the air-cooled trailer system that enters, and to upper epidermis face carry out sided corona treatment and
Winding obtains BOPE film.
F, for BOPE film after Wetted constructures, finished product is made in cutting, packaging.
BOPE film (50 μm of thickness) prepared by above-described embodiment 1-3 and commercially available general IPE film (50 μm of thickness)
Test is compared, testing result is as shown in table 1:
Table 1:
As can be seen from Table 1, the BOPE film that through the invention prepared by formula and technique, flatness, optics in film surface
Performance, mechanical performance etc. are substantially better than traditional IPE film, and PE film can be improved in the application of packaging industry and use
Effect.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (7)
1. a kind of BOPE film, it is characterised in that: the three-decker being made of sandwich layer, upper epidermis and layer；The sandwich layer
For 1%-3%wt antistatic master batch and 97-99%wt M-LLDPE；The upper epidermis is 2%-4%wt antistatic master batch and 96%-98%
wt M-LLDPE；The layer is 3%-5%wt resist blocking and that masterbatch and 95%-97%wt M-LLDPE；The antistatic master batch
For the mixture of amine ethoxylate, single hard acid glycerolipid and M-LLDPE, the anti-stick masterbatch is oleamide and M-LLDPE
Mixture.
2. a kind of BOPE film according to claim 1, it is characterised in that: the thickness of the upper epidermis and layer is equal
It is 1-2 μm.
3. a kind of BOPE film according to claim 1, it is characterised in that: the upper epidermis is corona processing layer.
4. a kind of preparation method of BOPE film according to claim 1, it is characterised in that: the following steps are included:
A, core layer raw material is heated into melting by proportion and dry be sent in main extruder, upper epidermis raw material is by proportion one
Heating melting in platform subsidiary extruder, layer raw material pass through proportion heating melting in a subsidiary extruder；It will be resulting
Three layers of melt after filter screen filtration, converge extrusion respectively in three-decker die head；
B, the melt that step a is squeezed out is attached into chilling on sharp cooling roll with compressed air and forms slab, cast tablets are passed through into water-bath
It is cooling, then slab after cooling is carried out with compressed air to remove water process；
C, longitudinal to extend by slab obtained by step b by preheating；
D, the film after longitudinal extend is preheated, then carry out thermal finalization after stretching horizontally；
E, film obtained by step d is flattened by the air-cooled trailer system that enters, and sided corona treatment and winding is carried out to upper epidermis face
Obtain BOPE film.
5. a kind of preparation method of BOPE film according to claim 4, it is characterised in that: by gained in the step a
Three layers of melt respectively after the filtering of 400 mesh filter screens, converge extrusions in three-decker die head, die head temperature is 232 DEG C.
6. a kind of preparation method of BOPE film according to claim 4, it is characterised in that: slab passes through in the step c
70 DEG C of -100 DEG C of preheatings are crossed, are longitudinally extended at 100 DEG C -120 DEG C, extension ratio is in 4.5-5.0.
7. a kind of preparation method of BOPE film according to claim 4, it is characterised in that: in the step d film with
85 DEG C -105 DEG C are preheated, and are stretched at 100-120 DEG C, 125 DEG C of -135 DEG C of thermal finalizations, stretching ratio 8.0-9.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910711741.3A CN110450490A (en) | 2019-08-02 | 2019-08-02 | A kind of BOPE film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910711741.3A CN110450490A (en) | 2019-08-02 | 2019-08-02 | A kind of BOPE film and preparation method thereof |
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| CN110450490A true CN110450490A (en) | 2019-11-15 |
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| CN201910711741.3A Pending CN110450490A (en) | 2019-08-02 | 2019-08-02 | A kind of BOPE film and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941970A (en) * | 2020-08-06 | 2020-11-17 | 安徽金田高新材料股份有限公司 | Biaxially oriented BOPE film and preparation method thereof |
| CN112238666A (en) * | 2020-10-16 | 2021-01-19 | 安徽省长荣新材料科技有限公司 | Ultralow temperature-resistant polyethylene functional film and preparation method thereof |
| CN112356471A (en) * | 2020-10-24 | 2021-02-12 | 苏州普来安高分子材料有限公司 | Method for manufacturing BOPE film |
| CN112874092A (en) * | 2021-01-14 | 2021-06-01 | 广东德冠薄膜新材料股份有限公司 | High-stiffness heat-resistant BOPE film and preparation method thereof |
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| WO2015046137A1 (en) * | 2013-09-30 | 2015-04-02 | 三菱樹脂株式会社 | Release film and substrate-less double-sided pressure-sensitive adhesive sheet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941970A (en) * | 2020-08-06 | 2020-11-17 | 安徽金田高新材料股份有限公司 | Biaxially oriented BOPE film and preparation method thereof |
| CN112238666A (en) * | 2020-10-16 | 2021-01-19 | 安徽省长荣新材料科技有限公司 | Ultralow temperature-resistant polyethylene functional film and preparation method thereof |
| CN112356471A (en) * | 2020-10-24 | 2021-02-12 | 苏州普来安高分子材料有限公司 | Method for manufacturing BOPE film |
| CN112874092A (en) * | 2021-01-14 | 2021-06-01 | 广东德冠薄膜新材料股份有限公司 | High-stiffness heat-resistant BOPE film and preparation method thereof |
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