CN106299168A - A kind of application type high-performance aluminum plastic film and preparation method thereof - Google Patents
A kind of application type high-performance aluminum plastic film and preparation method thereof Download PDFInfo
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- CN106299168A CN106299168A CN201610954539.XA CN201610954539A CN106299168A CN 106299168 A CN106299168 A CN 106299168A CN 201610954539 A CN201610954539 A CN 201610954539A CN 106299168 A CN106299168 A CN 106299168A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/085—Layered products comprising a layer of metal comprising metal 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 comprising polyolefins
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/088—Layered products comprising a layer of metal comprising metal 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 comprising polyamides
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The present invention relates to aluminum plastic film technical field, it is specifically related to a kind of application type high-performance aluminum plastic film and preparation method thereof, this application type high-performance aluminum plastic film, includes cast polypropylene film layer, aluminium foil layer, aramid fiber layer and the erosion resisting insulation coating being combined successively from inside to outside.The preparation method of this application type high-performance aluminum plastic film, first by bonding compound to cast polypropylene film layer, aluminium foil layer, aramid fiber layer, prepare semi-finished product, at the slurry preparing erosion resisting insulation coating, slurry is coated aramid fiber layer surface again, and after drying and baking, prepare described application type high-performance aluminum plastic film.This application type high-performance aluminum plastic film, compared with prior art, owing to adding erosion resisting insulation coating so that its wear-resisting intensity, insulating properties and corrosion resistance are all increased dramatically, so that the service life of this application type high-performance aluminum plastic film, safety coefficient effectively improve.
Description
Technical field
The present invention relates to aluminum plastic film technical field, be specifically related to a kind of application type high-performance aluminum plastic film and preparation method thereof.
Background technology
Along with smart mobile phone, new-energy automobile and the development in distributed power station, the lithium battery Soft Roll of smart machine, power current
Pond Soft Roll, energy-storage battery Soft Roll etc. all occur in that great-leap-forward development.But, life is increasingly pressed close to along with soft bag lithium ionic cell
Living, meet people to high-energy-density, compact use demand, meanwhile, its safety, reliability increasingly become people
Focus of attention.
At present, due to aluminum plastic film typically to carry out unreeling in the course of processing, stamp, seal, to note electrolyte, closedtop etc. many
How procedure, therefore, avoid course of processing multiple working procedure to rub aluminum plastic film and scratch the critical technological point becoming each producer.Separately
Outward, in prior art, in note electrolyte operation, when treating that the moment that liquid injecting mouth is extracted can occur that electrolyte is dropped in aperiodically
The phenomenon of the nylon layer of aluminum plastic film, causes nylon layer to corrode.Further, along with energy-storage battery and the progressively rise of electrokinetic cell, aluminum
But there is the defect that High-Voltage Insulation is bad in plastic film, therefore becomes modern aluminum plastic film urgent problem.Additionally, pursuing
While safe and reliable, how reducing cost is also emphasis very important during aluminum plastic film produces.
Summary of the invention
An object of the present invention is for the deficiencies in the prior art, it is provided that a kind of application type high-performance aluminum plastic film, should
Wear-resisting intensity, insulating properties and the corrosion resistance of application type high-performance aluminum plastic film are all increased dramatically.
The two of the purpose of the present invention are for the deficiencies in the prior art, it is provided that the system of a kind of application type high-performance aluminum plastic film
Preparation Method, the preparation method of this application type high-performance aluminum plastic film has the advantage that production cost is low.
One of to achieve these goals, the present invention adopts the following technical scheme that
A kind of application type high-performance aluminum plastic film is provided, the cast polypropylene film layer that includes from inside to outside being combined successively, aluminium foil layer,
Aramid fiber layer and erosion resisting insulation coating；
Film-forming resin used in described erosion resisting insulation coating is vistanex, epoxy resin, modified polyamide resin, gathers
One in vinyl chloride resin or polyflon.
The thickness of described erosion resisting insulation coating is 1 micron ~ 150 microns.
The thickness of described application type high-performance aluminum plastic film is 20 microns ~ 800 microns.
Water blocking layer, anti-corrosion layer, adhesion agent layer or smooth layer is also included outside described erosion resisting insulation coating.
The outward appearance of described application type high-performance aluminum plastic film is aluminum matter true qualities, black or coloured appearance.
Two to achieve these goals, the present invention adopts the following technical scheme that
Thering is provided the preparation method of a kind of application type high-performance aluminum plastic film, it comprises the following steps:
Step one, successively that cast polypropylene film layer, aluminium foil layer, aramid fiber layer is bonding compound by adhesive, prepare
Semi-finished product；
Or, successively by bonding multiple to cast polypropylene film layer, aluminium foil layer, aramid fiber layer by the way of curtain coating hot pressing
Close, prepare semi-finished product；
Or, after cast polypropylene film layer, aluminium foil layer being combined successively, recycling hot-melt extruded method is by aramid fiber layer
Raw material and adhesive are disposably extruded and are combined with aluminium foil layer, prepare semi-finished product；
Step 2, carries out room temperature mixing by film-forming resin, firming agent and corrosion inhibitor used in erosion resisting insulation coating, and leads to
Crossing agitator and carry out dispersed, then standing certain time carries out froth breaking, prepares slurry；
Step 3, is transferred to the aramid fiber layer of the semi-finished product that step one prepares by coating rod by the slurry that step 2 prepares
Surface, and be coated, prepare the second semi-finished product；
Step 4, after being dried certain time at a certain temperature by the second semi-finished product that step 3 prepares, more at a certain temperature
Baking certain time, i.e. prepare described application type high-performance aluminum plastic film.
In technique scheme, in described step one, described adhesive is polyurethane, modified polyurethane, modified acroleic acid
One in resin or epoxy resin.
In technique scheme, in described step 2, described firming agent is dimethyl acetylamide, and described corrosion inhibitor is hydrogen
Aluminium oxide；
Mass ratio between described film-forming resin, described firming agent and described corrosion inhibitor is 8 ~ 12:0.5 ~ 2:1 ~ 3.
In technique scheme, in described step 2, described time of repose is 20min ~ 40min.
In technique scheme, in described step 4, baking temperature is 45 DEG C ~ 55 DEG C, and drying time is 3min ~ 7min；
Baking temperature is 80 DEG C ~ 100 DEG C, and baking time is 18h ~ 22h.
The present invention compared with prior art, has the beneficial effects that:
(1) a kind of application type high-performance aluminum plastic film that the present invention provides, compared with prior art, owing to adding erosion resisting insulation
Coating, and then wear-resisting intensity, insulating properties and the corrosion resistance of this application type high-performance aluminum plastic film are the most significantly carried
Rise, so that the service life of this application type high-performance aluminum plastic film, safety coefficient effectively improve.
(2) preparation method of a kind of application type high-performance aluminum plastic film that the present invention provides, has method simple, production cost
Low, and the feature of large-scale production can be applicable to.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with
Embodiment, is further elaborated to the present invention.Should be appreciated that specific embodiment described herein is only in order to explain
The present invention, is not intended to limit the present invention.
Wherein, film-forming resin used in the erosion resisting insulation coating that the present invention mentions includes vistanex, asphalt mixtures modified by epoxy resin
One in the insulating resins such as fat, modified polyamide resin, Corvic or polyflon, but it is not limited to listed
The scope of act.
Embodiment 1.
A kind of application type high-performance aluminum plastic film, the cast polypropylene film layer including from inside to outside being combined successively, aluminium foil layer,
Aramid fiber layer and erosion resisting insulation coating；In the present embodiment, film-forming resin used in erosion resisting insulation coating is polyene
Hydrocarbon resin.
In the present embodiment, the thickness of erosion resisting insulation coating is 100 microns.In theory, the thickness of erosion resisting insulation coating
Its wearability the thickest, insulating properties and electrolyte resistance are the most excellent, but its stamp is deteriorated relative to thin film, when erosion resisting insulation coating
Thickness when being 100 microns, and wearability, insulating properties, electrolyte resistance and stamp are preferable.
The thickness of this application type high-performance aluminum plastic film is 300 microns.
In the present embodiment, outside erosion resisting insulation coating, also include water blocking layer.
In the present embodiment, the outward appearance of this application type high-performance aluminum plastic film is aluminum this colored appearance of matter.
The preparation method of above-mentioned a kind of application type high-performance aluminum plastic film, it comprises the following steps:
Step one, successively that cast polypropylene film layer, aluminium foil layer, aramid fiber layer is bonding compound by adhesive, prepare
Semi-finished product；In the present embodiment, adhesive is polyurethane；
Step 2, by film-forming resin, firming agent dimethyl acetylamide and corrosion inhibitor hydrogen-oxygen used in erosion resisting insulation coating
Change aluminum and carry out room temperature mixing, and carry out dispersed by agitator, then stand 30min and carry out froth breaking, prepare slurry；This reality
Executing in example, the mass ratio between film-forming resin, firming agent and corrosion inhibitor is 10:1:1.5.
Step 3, is transferred to the polyamide fibre of the semi-finished product that step one prepares by coating rod by the slurry that step 2 prepares
Dimension layer surface, and be coated, prepare the second semi-finished product；
Step 4, after the second semi-finished product step 3 prepared are dried 5min at 50 DEG C, then toasts 20h at 90 DEG C, i.e. makes
Obtain described application type high-performance aluminum plastic film.
A kind of application type high-performance aluminum plastic film of the present embodiment, compared with prior art, owing to adding erosion resisting insulation
Coating, and then wear-resisting intensity, insulating properties and the corrosion resistance of this application type high-performance aluminum plastic film are the most significantly carried
Rise, so that the service life of this application type high-performance aluminum plastic film, safety coefficient effectively improve.This application type high-performance
The preparation method of aluminum plastic film, has method simple, and production cost is low, and can be applicable to the feature of large-scale production.After tested,
The insulating resistance value of this application type high-performance aluminum plastic film relative to the aluminum plastic film of naked resin by 2 × 108Ω increases to 3.8 × 109
Ω.This application type high-performance aluminum plastic film is soaked in electrolyte (lithium hexafluoro phosphate) 20h, has no delamination metachromatism.It addition,
The peeling force of the erosion resisting insulation coating of the application type high-performance aluminum plastic film of the present embodiment meets hundred lattice testing requirements.
Embodiment 2.
A kind of application type high-performance aluminum plastic film, the cast polypropylene film layer including from inside to outside being combined successively, aluminium foil layer,
Aramid fiber layer and erosion resisting insulation coating；In the present embodiment, film-forming resin used in erosion resisting insulation coating is epoxy
Resin.
In the present embodiment, the thickness of erosion resisting insulation coating is 1 micron.In theory, the thickness of erosion resisting insulation coating is more
Its wearability thick, insulating properties and electrolyte resistance are the most excellent, but its stamp is deteriorated relative to thin film, when erosion resisting insulation coating
When thickness is 1 micron, and wearability, insulating properties, electrolyte resistance and stamp are preferable.
The thickness of this application type high-performance aluminum plastic film is 20 microns.
In the present embodiment, outside erosion resisting insulation coating, also include anti-corrosion layer.
In the present embodiment, the outward appearance of this application type high-performance aluminum plastic film is appearance of black.
The preparation method of above-mentioned a kind of application type high-performance aluminum plastic film, it comprises the following steps:
Step one, successively by bonding multiple to cast polypropylene film layer, aluminium foil layer, aramid fiber layer by the way of curtain coating hot pressing
Close, prepare semi-finished product；
Step 2, by film-forming resin, firming agent dimethyl acetylamide and corrosion inhibitor hydrogen-oxygen used in erosion resisting insulation coating
Change aluminum and carry out room temperature mixing, and carry out dispersed by agitator, then stand 20min and carry out froth breaking, prepare slurry；This reality
Executing in example, the mass ratio between film-forming resin, firming agent and corrosion inhibitor is 8:0.5:1.
Step 3, is transferred to the polyamide fibre of the semi-finished product that step one prepares by coating rod by the slurry that step 2 prepares
Dimension layer surface, and be coated, prepare the second semi-finished product；
Step 4, after the second semi-finished product step 3 prepared are dried 7min at 45 DEG C, then toasts 22h at 80 DEG C, i.e. makes
Obtain described application type high-performance aluminum plastic film.
A kind of application type high-performance aluminum plastic film of the present embodiment, compared with prior art, owing to adding erosion resisting insulation
Coating, and then wear-resisting intensity, insulating properties and the corrosion resistance of this application type high-performance aluminum plastic film are the most significantly carried
Rise, so that the service life of this application type high-performance aluminum plastic film, safety coefficient effectively improve.This application type high-performance
The preparation method of aluminum plastic film, has method simple, and production cost is low, and can be applicable to the feature of large-scale production.After tested,
The insulating resistance value of this application type high-performance aluminum plastic film relative to the aluminum plastic film of naked resin by 2 × 108Ω increases to 3.8 × 109
Ω.This application type high-performance aluminum plastic film is soaked in electrolyte (lithium hexafluoro phosphate) 20h, has no delamination metachromatism.It addition,
The peeling force of the erosion resisting insulation coating of the application type high-performance aluminum plastic film of the present embodiment meets hundred lattice testing requirements.
Embodiment 3.
A kind of application type high-performance aluminum plastic film, the cast polypropylene film layer including from inside to outside being combined successively, aluminium foil layer,
Aramid fiber layer and erosion resisting insulation coating；In the present embodiment, film-forming resin used in erosion resisting insulation coating is modified
Polyamide.
In the present embodiment, the thickness of erosion resisting insulation coating is 150 microns.In theory, the thickness of erosion resisting insulation coating
Its wearability the thickest, insulating properties and electrolyte resistance are the most excellent, but its stamp is deteriorated relative to thin film, when erosion resisting insulation coating
Thickness when being 150 microns, and wearability, insulating properties, electrolyte resistance and stamp are preferable.
The thickness of this application type high-performance aluminum plastic film is 800 microns.
In the present embodiment, outside erosion resisting insulation coating, also include adhesion agent layer.
In the present embodiment, the outward appearance of this application type high-performance aluminum plastic film is coloured appearance.
The preparation method of above-mentioned a kind of application type high-performance aluminum plastic film, it comprises the following steps:
Step one, after cast polypropylene film layer, aluminium foil layer being combined successively, recycling hot-melt extruded method is by aramid fiber layer
Raw material and adhesive is disposably extruded and with aluminium foil layer be combined, prepare semi-finished product；
Step 2, by film-forming resin, firming agent dimethyl acetylamide and corrosion inhibitor hydrogen-oxygen used in erosion resisting insulation coating
Change aluminum and carry out room temperature mixing, and carry out dispersed by agitator, then stand 40min and carry out froth breaking, prepare slurry；This reality
Executing in example, the mass ratio between film-forming resin, firming agent and corrosion inhibitor is 12:2:3.
Step 3, is transferred to the polyamide fibre of the semi-finished product that step one prepares by coating rod by the slurry that step 2 prepares
Dimension layer surface, and be coated, prepare the second semi-finished product；
Step 4, after the second semi-finished product step 3 prepared are dried 3min at 55 DEG C, then toasts 18h at 100 DEG C, i.e. makes
Obtain described application type high-performance aluminum plastic film.
A kind of application type high-performance aluminum plastic film of the present embodiment, compared with prior art, owing to adding erosion resisting insulation
Coating, and then wear-resisting intensity, insulating properties and the corrosion resistance of this application type high-performance aluminum plastic film are the most significantly carried
Rise, so that the service life of this application type high-performance aluminum plastic film, safety coefficient effectively improve.This application type high-performance
The preparation method of aluminum plastic film, has method simple, and production cost is low, and can be applicable to the feature of large-scale production.After tested,
The insulating resistance value of this application type high-performance aluminum plastic film relative to the aluminum plastic film of naked resin by 2 × 108Ω increases to 3.8 × 109
Ω.This application type high-performance aluminum plastic film is soaked in electrolyte (lithium hexafluoro phosphate) 20h, has no delamination metachromatism.It addition,
The peeling force of the erosion resisting insulation coating of the application type high-performance aluminum plastic film of the present embodiment meets hundred lattice testing requirements.
Embodiment 4.
A kind of application type high-performance aluminum plastic film, the cast polypropylene film layer including from inside to outside being combined successively, aluminium foil layer,
Aramid fiber layer and erosion resisting insulation coating；In the present embodiment, film-forming resin used in erosion resisting insulation coating is polychlorostyrene
Vinyl.
In the present embodiment, the thickness of erosion resisting insulation coating is 50 microns.In theory, the thickness of erosion resisting insulation coating is more
Its wearability thick, insulating properties and electrolyte resistance are the most excellent, but its stamp is deteriorated relative to thin film, when erosion resisting insulation coating
When thickness is 50 microns, and wearability, insulating properties, electrolyte resistance and stamp are preferable.
The thickness of this application type high-performance aluminum plastic film is 200 microns.
In the present embodiment, outside erosion resisting insulation coating, also include smooth layer.
In the present embodiment, the outward appearance of this application type high-performance aluminum plastic film is aluminum this colored appearance of matter.
The preparation method of above-mentioned a kind of application type high-performance aluminum plastic film, it comprises the following steps:
Step one, successively that cast polypropylene film layer, aluminium foil layer, aramid fiber layer is bonding compound by adhesive, prepare
Semi-finished product；In the present embodiment, adhesive is modified polyurethane；
Step 2, by film-forming resin, firming agent dimethyl acetylamide and corrosion inhibitor hydrogen-oxygen used in erosion resisting insulation coating
Change aluminum and carry out room temperature mixing, and carry out dispersed by agitator, then stand 25min and carry out froth breaking, prepare slurry；This reality
Executing in example, the mass ratio between film-forming resin, firming agent and corrosion inhibitor is 9:0.8:1.2.
Step 3, is transferred to the polyamide fibre of the semi-finished product that step one prepares by coating rod by the slurry that step 2 prepares
Dimension layer surface, and be coated, prepare the second semi-finished product；
Step 4, after the second semi-finished product step 3 prepared are dried 6min at 48 DEG C, then toasts 21h at 85 DEG C, i.e. makes
Obtain described application type high-performance aluminum plastic film.
A kind of application type high-performance aluminum plastic film of the present embodiment, compared with prior art, owing to adding erosion resisting insulation
Coating, and then wear-resisting intensity, insulating properties and the corrosion resistance of this application type high-performance aluminum plastic film are the most significantly carried
Rise, so that the service life of this application type high-performance aluminum plastic film, safety coefficient effectively improve.This application type high-performance
The preparation method of aluminum plastic film, has method simple, and production cost is low, and can be applicable to the feature of large-scale production.After tested,
The insulating resistance value of this application type high-performance aluminum plastic film relative to the aluminum plastic film of naked resin by 2 × 108Ω increases to 3.8 × 109
Ω.This application type high-performance aluminum plastic film is soaked in electrolyte (lithium hexafluoro phosphate) 20h, has no delamination metachromatism.It addition,
The peeling force of the erosion resisting insulation coating of the application type high-performance aluminum plastic film of the present embodiment meets hundred lattice testing requirements.
Embodiment 5.
A kind of application type high-performance aluminum plastic film, the cast polypropylene film layer including from inside to outside being combined successively, aluminium foil layer,
Aramid fiber layer and erosion resisting insulation coating；In the present embodiment, film-forming resin used in erosion resisting insulation coating is poly-four
Fluoroethylene resin.
In the present embodiment, the thickness of erosion resisting insulation coating is 80 microns.In theory, the thickness of erosion resisting insulation coating is more
Its wearability thick, insulating properties and electrolyte resistance are the most excellent, but its stamp is deteriorated relative to thin film, when erosion resisting insulation coating
When thickness is 80 microns, and wearability, insulating properties, electrolyte resistance and stamp are preferable.
The thickness of this application type high-performance aluminum plastic film is 400 microns.
In the present embodiment, outside erosion resisting insulation coating, also include water blocking layer.
In the present embodiment, the outward appearance of this application type high-performance aluminum plastic film is aluminum this colored appearance of matter.
The preparation method of above-mentioned a kind of application type high-performance aluminum plastic film, it comprises the following steps:
Step one, successively that cast polypropylene film layer, aluminium foil layer, aramid fiber layer is bonding compound by adhesive, prepare
Semi-finished product；In the present embodiment, adhesive is acrylic resin modified；
Step 2, by film-forming resin, firming agent dimethyl acetylamide and corrosion inhibitor hydrogen-oxygen used in erosion resisting insulation coating
Change aluminum and carry out room temperature mixing, and carry out dispersed by agitator, then stand 35min and carry out froth breaking, prepare slurry；This reality
Executing in example, the mass ratio between film-forming resin, firming agent and corrosion inhibitor is 11:1.5:2.
Step 3, is transferred to the polyamide fibre of the semi-finished product that step one prepares by coating rod by the slurry that step 2 prepares
Dimension layer surface, and be coated, prepare the second semi-finished product；
Step 4, after the second semi-finished product step 3 prepared are dried 4min at 52 DEG C, then toasts 19h at 95 DEG C, i.e. makes
Obtain described application type high-performance aluminum plastic film.
A kind of application type high-performance aluminum plastic film of the present embodiment, compared with prior art, owing to adding erosion resisting insulation
Coating, and then wear-resisting intensity, insulating properties and the corrosion resistance of this application type high-performance aluminum plastic film are the most significantly carried
Rise, so that the service life of this application type high-performance aluminum plastic film, safety coefficient effectively improve.This application type high-performance
The preparation method of aluminum plastic film, has method simple, and production cost is low, and can be applicable to the feature of large-scale production.After tested,
The insulating resistance value of this application type high-performance aluminum plastic film relative to the aluminum plastic film of naked resin by 2 × 108Ω increases to 3.8 × 109
Ω.This application type high-performance aluminum plastic film is soaked in electrolyte (lithium hexafluoro phosphate) 20h, has no delamination metachromatism.It addition,
The peeling force of the erosion resisting insulation coating of the application type high-performance aluminum plastic film of the present embodiment meets hundred lattice testing requirements.
Embodiment 6.
A kind of application type high-performance aluminum plastic film, the cast polypropylene film layer including from inside to outside being combined successively, aluminium foil layer,
Aramid fiber layer and erosion resisting insulation coating；In the present embodiment, film-forming resin used in erosion resisting insulation coating is polyene
Hydrocarbon resin.
In the present embodiment, the thickness of erosion resisting insulation coating is 60 microns.In theory, the thickness of erosion resisting insulation coating is more
Its wearability thick, insulating properties and electrolyte resistance are the most excellent, but its stamp is deteriorated relative to thin film, when erosion resisting insulation coating
When thickness is 60 microns, and wearability, insulating properties, electrolyte resistance and stamp are preferable.
The thickness of this application type high-performance aluminum plastic film is 150 microns.
In the present embodiment, outside erosion resisting insulation coating, also include water blocking layer.
In the present embodiment, the outward appearance of this application type high-performance aluminum plastic film is coloured appearance.
The preparation method of above-mentioned a kind of application type high-performance aluminum plastic film, it comprises the following steps:
Step one, successively that cast polypropylene film layer, aluminium foil layer, aramid fiber layer is bonding compound by adhesive, prepare
Semi-finished product；In the present embodiment, adhesive is epoxy resin；
Step 2, by film-forming resin, firming agent dimethyl acetylamide and corrosion inhibitor hydrogen-oxygen used in erosion resisting insulation coating
Change aluminum and carry out room temperature mixing, and carry out dispersed by agitator, then stand 30min and carry out froth breaking, prepare slurry；This reality
Executing in example, the mass ratio between film-forming resin, firming agent and corrosion inhibitor is 10:0.5:1.
Step 3, is transferred to the polyamide fibre of the semi-finished product that step one prepares by coating rod by the slurry that step 2 prepares
Dimension layer surface, and be coated, prepare the second semi-finished product；
Step 4, after the second semi-finished product step 3 prepared are dried 4min at 44 DEG C, then toasts 20h at 88 DEG C, i.e. makes
Obtain described application type high-performance aluminum plastic film.
A kind of application type high-performance aluminum plastic film of the present embodiment, compared with prior art, owing to adding erosion resisting insulation
Coating, and then wear-resisting intensity, insulating properties and the corrosion resistance of this application type high-performance aluminum plastic film are the most significantly carried
Rise, so that the service life of this application type high-performance aluminum plastic film, safety coefficient effectively improve.This application type high-performance
The preparation method of aluminum plastic film, has method simple, and production cost is low, and can be applicable to the feature of large-scale production.After tested,
The insulating resistance value of this application type high-performance aluminum plastic film relative to the aluminum plastic film of naked resin by 2 × 108Ω increases to 3.8 × 109
Ω.This application type high-performance aluminum plastic film is soaked in electrolyte (lithium hexafluoro phosphate) 20h, has no delamination metachromatism.It addition,
The peeling force of the erosion resisting insulation coating of the application type high-performance aluminum plastic film of the present embodiment meets hundred lattice testing requirements.
Last it should be noted that, above example is only in order to illustrate technical scheme, rather than the present invention is protected
Protecting the restriction of scope, although having made to explain to the present invention with reference to preferred embodiment, those of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (10)
1. an application type high-performance aluminum plastic film, it is characterised in that: include the cast polypropylene film being combined successively from inside to outside
Layer, aluminium foil layer, aramid fiber layer and erosion resisting insulation coating；
Film-forming resin used in described erosion resisting insulation coating is vistanex, epoxy resin, modified polyamide resin, gathers
One in vinyl chloride resin or polyflon.
A kind of application type high-performance aluminum plastic film the most according to claim 1, it is characterised in that: described erosion resisting insulation coating
Thickness be 1 micron ~ 150 microns.
A kind of application type high-performance aluminum plastic film the most according to claim 1, it is characterised in that: described application type high-performance aluminum
The thickness of plastic film is 20 microns ~ 800 microns.
A kind of application type high-performance aluminum plastic film the most according to claim 1, it is characterised in that: it is coated with at described erosion resisting insulation
Layer is outer also includes water blocking layer, anti-corrosion layer, adhesion agent layer or smooth layer.
A kind of application type high-performance aluminum plastic film the most according to claim 1, it is characterised in that: described application type high-performance aluminum
The outward appearance of plastic film is aluminum matter true qualities, black or coloured appearance.
6. the preparation method of a kind of application type high-performance aluminum plastic film described in claim 1 to 5 any one, it is characterised in that:
It comprises the following steps:
Step one, successively that cast polypropylene film layer, aluminium foil layer, aramid fiber layer is bonding compound by adhesive, prepare
Semi-finished product；
Or, successively by bonding multiple to cast polypropylene film layer, aluminium foil layer, aramid fiber layer by the way of curtain coating hot pressing
Close, prepare semi-finished product；
Or, after cast polypropylene film layer, aluminium foil layer being combined successively, recycling hot-melt extruded method is by aramid fiber layer
Raw material and adhesive are disposably extruded and are combined with aluminium foil layer, prepare semi-finished product；
Step 2, carries out room temperature mixing by film-forming resin, firming agent and corrosion inhibitor used in erosion resisting insulation coating, and leads to
Crossing agitator and carry out dispersed, then standing certain time carries out froth breaking, prepares slurry；
Step 3, is transferred to the aramid fiber layer of the semi-finished product that step one prepares by coating rod by the slurry that step 2 prepares
Surface, and be coated, prepare the second semi-finished product；
Step 4, after being dried certain time at a certain temperature by the second semi-finished product that step 3 prepares, more at a certain temperature
Baking certain time, i.e. prepare described application type high-performance aluminum plastic film.
The preparation method of a kind of application type high-performance aluminum plastic film the most according to claim 6, it is characterised in that: described step
In one, described adhesive is the one in polyurethane, modified polyurethane, acrylic resin modified or epoxy resin.
The preparation method of a kind of application type high-performance aluminum plastic film the most according to claim 6, it is characterised in that: described step
In two, described firming agent is dimethyl acetylamide, and described corrosion inhibitor is aluminium hydroxide；
Mass ratio between described film-forming resin, described firming agent and described corrosion inhibitor is 8 ~ 12:0.5 ~ 2:1 ~ 3.
The preparation method of a kind of application type high-performance aluminum plastic film the most according to claim 6, it is characterised in that: described step
In two, described time of repose is 20min ~ 40min.
The preparation method of a kind of application type high-performance aluminum plastic film the most according to claim 6, it is characterised in that: described step
In rapid four, baking temperature is 45 DEG C ~ 55 DEG C, and drying time is 3min ~ 7min；Baking temperature is 80 DEG C ~ 100 DEG C, baking time
For 18h ~ 22h.
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| CN111136970A (en) * | 2019-12-19 | 2020-05-12 | 深圳市海盈科技有限公司 | Aluminum plastic film for lithium ion battery and lithium ion battery |
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Application publication date: 20170104 |