CN112937041A - Polypropylene for low-temperature packaging aluminum plastic film - Google Patents
Polypropylene for low-temperature packaging aluminum plastic film Download PDFInfo
- Publication number
- CN112937041A CN112937041A CN202110103915.5A CN202110103915A CN112937041A CN 112937041 A CN112937041 A CN 112937041A CN 202110103915 A CN202110103915 A CN 202110103915A CN 112937041 A CN112937041 A CN 112937041A
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- Prior art keywords
- polypropylene
- plastic film
- low
- polyolefin elastomer
- percentage
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- -1 Polypropylene Polymers 0.000 title claims abstract description 32
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 29
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 29
- 239000002985 plastic film Substances 0.000 title claims abstract description 19
- 229920006255 plastic film Polymers 0.000 title claims abstract description 19
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 20
- 229920006124 polyolefin elastomer Polymers 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims abstract description 13
- 230000000996 additive effect Effects 0.000 claims abstract description 13
- 239000012793 heat-sealing layer Substances 0.000 claims abstract description 9
- 238000009832 plasma treatment Methods 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- 125000003368 amide group Chemical group 0.000 claims description 2
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000012661 block copolymerization Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 4
- 239000005025 cast polypropylene Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/242—All polymers belonging to those covered by group B32B27/32
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- 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
- B32B2457/00—Electrical equipment
- B32B2457/10—Batteries
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2353/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
Abstract
The invention discloses polypropylene for a low-temperature packaging aluminum plastic film, which comprises a plasma processing layer, a supporting layer and a heat sealing layer which are sequentially overlapped; the plasma treatment layer comprises the following components in percentage by mass: 57-65% of random copolymerization polypropylene, 10-15% of modified additive and 20-33% of polyolefin elastomer; the support layer comprises the following components in percentage by mass: 55-70% of homopolymerized polypropylene, 15-30% of polyolefin elastomer and 10-20% of modified additive; the heat-sealing layer comprises the following components in percentage by mass: 55-65% of random or block copolymerization polypropylene, 20-30% of polyolefin elastomer, 9.4-19.4% of modified additive and 0.2-1% of slipping agent; by using the polyolefin elastomer, the crystallinity of the polypropylene is reduced, and the melting point of the polypropylene is changed, so that the aluminum plastic film prepared from the polypropylene with low crystallinity can realize low-temperature packaging; moreover, the toughness of the polypropylene is effectively enhanced by adding the polyolefin elastomer.
Description
Technical Field
The invention relates to the technical field of aluminum-plastic films, in particular to polypropylene for a low-temperature packaging aluminum-plastic film.
Background
The aluminum-plastic film is applied to the outer surface of the soft package battery, the battery is protected, the aluminum-plastic film is affected by the phenomena of heating, battery expansion, electrolyte corrosion and the like in the charging and discharging process of the battery, and higher requirements on the performances of all aspects of the aluminum-plastic film are required. But the present plastic-aluminum membrane has the problems of poor deep drawing forming performance, high packaging temperature, insufficient electrolyte resistance, poor moisture resistance and the like, and the heat sealing layer of the plastic-aluminum membrane inner layer contacting with the electrolyte is generally cast polypropylene, when deep drawing forming is carried out, the cast polypropylene film with poor toughness and strength is easy to generate stress whitening and even break, and when the plastic-aluminum membrane is packaged, the higher packaging temperature is generally required, more energy is consumed, and when the packaging temperature is high, the friction coefficients of the inner surface and the outer surface of the plastic-aluminum membrane can be uncontrolled, and the deep drawing forming is influenced.
Disclosure of Invention
In view of the above, the present invention provides a polypropylene for low temperature packaging aluminum plastic film, which can solve the problems of poor deep drawing forming performance, high packaging temperature, insufficient electrolyte resistance and poor moisture resistance of the aluminum plastic film.
In order to achieve the purpose, the invention adopts the following technical scheme:
the polypropylene for the low-temperature packaging aluminum plastic film comprises a plasma processing layer, a supporting layer and a heat sealing layer which are sequentially superposed, wherein,
the plasma treatment layer comprises the following components in percentage by mass:
57-65% of random copolymerization polypropylene
10 to 15 percent of modified additive
20-33% of polyolefin elastomer;
the support layer comprises the following components in percentage by mass:
55-70% of homo-polypropylene
15-30% of polyolefin elastomer
10-20% of modified additive;
the heat-sealing layer comprises the following components in percentage by mass:
as a preferable scheme, the modifying additive is one or a mixture of more of ethylene-octene copolymer and ethylene-propylene-octene hydrocarbon terpolymer.
Preferably, the slipping agent is an amide slipping agent.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and concretely, the technical scheme shows that the polypropylene crystallinity is reduced mainly by using the polyolefin elastomer, so that the melting point of the polypropylene is changed, and the aluminum plastic film prepared by the polypropylene with low crystallinity can realize low-temperature packaging; moreover, the toughness of the polypropylene is effectively enhanced by adding the polyolefin elastomer, so that the finished aluminum-plastic film has better deep drawing forming performance and deeper deep drawing depth; in addition, the invention also has the advantages of excellent electrolyte resistance, high moisture resistance and the like.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
The attached drawings indicate the following:
10. a plasma treatment layer; 20. a support layer; 30. and (4) heat sealing the layer.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Referring to fig. 1, a specific structure of an embodiment of the present invention is shown, which includes a plasma treatment layer 10, a support layer 20 and a heat sealing layer 30, which are stacked in sequence, wherein,
the plasma treatment layer 10 comprises the following components in percentage by mass:
57-65% of random copolymerization polypropylene
10 to 15 percent of modified additive
20-33% of polyolefin elastomer;
the support layer 20 comprises the following components in percentage by mass:
55-70% of homo-polypropylene
15-30% of polyolefin elastomer
10-20% of modified additive;
the heat-sealing layer 30 comprises the following components in percentage by mass:
in this embodiment, the modifying additive is one or a mixture of several of ethylene-octene copolymer and ethylene-propylene-octene hydrocarbon terpolymer, and the addition of the modifying additive can effectively destroy the structural regularity and symmetry of polypropylene, reduce crystallization ability, reduce crystallization speed and crystallinity of polypropylene, and improve low-temperature toughness.
In conclusion, the polyolefin elastomer is used, so that the crystallinity of the polypropylene is reduced, the melting point of the polypropylene is changed, and the aluminum plastic film prepared from the polypropylene with low crystallinity can realize low-temperature packaging; moreover, the toughness of the polypropylene is effectively enhanced by adding the polyolefin elastomer, so that the finished aluminum-plastic film has better deep drawing forming performance and deeper deep drawing depth; in addition, the invention also has the advantages of excellent electrolyte resistance, high moisture resistance and the like.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (3)
1. The polypropylene for the low-temperature packaging aluminum plastic film is characterized in that: comprises a plasma processing layer, a supporting layer and a heat sealing layer which are sequentially superposed, wherein,
the plasma treatment layer comprises the following components in percentage by mass:
57-65% of random copolymerization polypropylene
10 to 15 percent of modified additive
20-33% of polyolefin elastomer;
the support layer comprises the following components in percentage by mass:
55-70% of homo-polypropylene
15-30% of polyolefin elastomer
10-20% of modified additive;
the heat-sealing layer comprises the following components in percentage by mass:
2. the polypropylene for low-temperature packaging aluminum-plastic film as claimed in claim 1, wherein: the modified additive is one or a mixture of more of ethylene-octene copolymer and ethylene-propylene-octene hydrocarbon terpolymer.
3. The polypropylene for low-temperature packaging aluminum-plastic film as claimed in claim 1, wherein: the slipping agent is an amide slipping agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110103915.5A CN112937041A (en) | 2021-01-26 | 2021-01-26 | Polypropylene for low-temperature packaging aluminum plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110103915.5A CN112937041A (en) | 2021-01-26 | 2021-01-26 | Polypropylene for low-temperature packaging aluminum plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112937041A true CN112937041A (en) | 2021-06-11 |
Family
ID=76237001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110103915.5A Pending CN112937041A (en) | 2021-01-26 | 2021-01-26 | Polypropylene for low-temperature packaging aluminum plastic film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112937041A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982947A (en) * | 2020-01-06 | 2020-11-24 | 溧阳卓越新材料科技有限公司 | Layer thickness measuring method of aluminum plastic film polypropylene |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105754219A (en) * | 2016-03-31 | 2016-07-13 | 安徽纽麦特新材料科技股份有限公司 | Polypropylene composite material with high toughness under ultralow temperature and preparation method and application thereof |
| CN109968762A (en) * | 2018-12-24 | 2019-07-05 | 江西省通瑞新能源科技发展有限公司 | A kind of aluminum-plastic composite membrane cast polypropylene film and preparation method thereof |
-
2021
- 2021-01-26 CN CN202110103915.5A patent/CN112937041A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105754219A (en) * | 2016-03-31 | 2016-07-13 | 安徽纽麦特新材料科技股份有限公司 | Polypropylene composite material with high toughness under ultralow temperature and preparation method and application thereof |
| CN109968762A (en) * | 2018-12-24 | 2019-07-05 | 江西省通瑞新能源科技发展有限公司 | A kind of aluminum-plastic composite membrane cast polypropylene film and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982947A (en) * | 2020-01-06 | 2020-11-24 | 溧阳卓越新材料科技有限公司 | Layer thickness measuring method of aluminum plastic film polypropylene |
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Application publication date: 20210611 |