CN110669452A - Double-sided adhesive tape with base material and application thereof - Google Patents
Double-sided adhesive tape with base material and application thereof Download PDFInfo
- Publication number
- CN110669452A CN110669452A CN201910916097.3A CN201910916097A CN110669452A CN 110669452 A CN110669452 A CN 110669452A CN 201910916097 A CN201910916097 A CN 201910916097A CN 110669452 A CN110669452 A CN 110669452A
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- China
- Prior art keywords
- double
- adhesive layer
- layer
- film
- base material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 14
- 239000002390 adhesive tape Substances 0.000 title claims description 16
- 239000010410 layer Substances 0.000 claims abstract description 41
- 239000012790 adhesive layer Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000003522 acrylic cement Substances 0.000 claims abstract description 14
- 238000004806 packaging method and process Methods 0.000 claims abstract description 13
- 239000002985 plastic film Substances 0.000 claims abstract description 13
- 229920006255 plastic film Polymers 0.000 claims abstract description 13
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 229920002799 BoPET Polymers 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 15
- 239000000853 adhesive Substances 0.000 abstract description 13
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 6
- -1 acryl Chemical group 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 abstract description 6
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 abstract description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000004642 Polyimide Substances 0.000 description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001230 polyarylate Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910000572 Lithium Nickel Cobalt Manganese Oxide (NCM) Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- FBDMTTNVIIVBKI-UHFFFAOYSA-N [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] Chemical compound [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] FBDMTTNVIIVBKI-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/35—Heat-activated
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
- C09J133/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/33—Applications of adhesives in processes or use of adhesives in the form of films or foils for batteries or fuel cells
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a double-sided tape with a base material, which is characterized by comprising an acrylic adhesive layer, a base material layer, a thermosensitive adhesive layer and a release layer which are sequentially arranged; the preparation raw materials of the thermosensitive adhesive layer comprise the following components in percentage by weight: 40-50% of acryl resin, 10-15% of ethyl acetate, 3-10% of rosin resin, 3-10% of petroleum resin, 1-3% of cross-linking agent and 30-40% of toluene. According to the invention, different types of adhesives are coated on two surfaces of a substrate layer, and a high-viscosity surface is an acrylic adhesive layer which has high viscosity and is attached to and wraps a battery cell; the non-adhesive surface is a thermosensitive adhesive layer, is non-adhesive or slightly adhesive at normal temperature, generates viscosity after being hot-pressed by the battery packaging aluminum-plastic film, and can be firmly adhered to the battery packaging aluminum-plastic film, so that the battery core is prevented from loosening.
Description
Technical Field
The invention relates to a double-sided adhesive tape, in particular to a double-sided adhesive tape with a base material for packaging a battery.
Background
Lithium batteries refer to batteries that contain lithium (including metallic lithium, lithium alloys and lithium ions, lithium polymers) in an electrochemical system. Lithium batteries generally have two shapes: cylindrical and square. The battery is internally in a spiral winding structure and is formed by spacing a polyethylene film isolating material which is very fine and has strong permeability between a positive electrode and a negative electrode. The positive electrode comprises a current collector consisting of lithium cobaltate (or lithium nickel cobalt manganese oxide, lithium manganate, lithium iron phosphate and the like) and an aluminum foil. The negative electrode is composed of a current collector composed of a graphitized carbon material and a copper foil. The battery is filled with organic electrolyte solution. In addition, a safety valve and a PTC element (partially cylindrical) are provided to protect the battery from damage in case of abnormal state and output short circuit.
In the packaging process of the lithium battery, the outer side of the battery core of the lithium battery is connected with the packaging aluminum-plastic film in a matching manner, the double-sided adhesive tape is generally adopted for adhesion and fixation, and the common double-sided adhesive tape is easy to displace and cause the looseness of the battery core in the fixing process due to the low glass transition temperature of the glue water under the conditions of normal temperature or high temperature.
Therefore, it is necessary to provide a new double-sided adhesive tape to solve the above problems.
Disclosure of Invention
For overcoming the defects of the prior art, the invention provides the double-sided tape with the base material, which is characterized in that the adhesive property of an adhesive layer and a battery packaging aluminum plastic film surface is changed, so that the adhesive is not easy to displace at normal temperature after being pasted, the pasting is firm, and the problem that the battery core is easy to loosen after being fixed is solved.
The technical scheme adopted by the invention is as follows:
a double-sided tape with a base material comprises an acrylic acid adhesive layer, a base material layer, a thermosensitive adhesive layer and a release layer which are sequentially arranged; the preparation raw materials of the thermosensitive adhesive layer comprise the following components in percentage by weight:
further, the coating dry weight of the acrylic adhesive layer is 30-70g/m2。
Further, the 180 DEG peel strength of the acrylic adhesive layer to the aluminum plastic film is greater than 1.2kgf/25 mm.
Further, the 180 ° peel strength of the acrylic adhesive layer to the battery separator is greater than 0.8kgf/25 mm.
Further, the thickness of the substrate layer is 10-36 μm.
Further, the substrate layer is one of a PET film, a PVC film, a PP film and a PBT film; the base layer may be a film made of polyolefin such as ethylene-vinyl acetate copolymer (EVA), polyester such as polyethylene naphthalate (PEN), polyarylate, polyurethane, polycarbonate, polyamide, Polyimide (PI), polyphenylene sulfide (PPS), polytetrafluoroethylene, a composite thereof, or the like.
Further, the coating dry weight of the thermosensitive adhesive layer is 30-50g/m2。
Further, the cross-linking agent is an isocyanate cross-linking agent.
Further, the release layer is one of a PET release film, a PVC release film and a PE release film.
Further, the PET double-sided adhesive tape is used for packaging a battery; the acrylic acid adhesive layer is adhered to the outer surface of the battery cell, and the thermosensitive adhesive layer is adhered to the inner surface of the battery packaging aluminum-plastic film.
Further, the melting point or the bonding temperature of the thermosensitive adhesive layer is lower than the thermal fusion temperature of the battery packaging aluminum plastic film.
The invention has the beneficial effects that:
according to the invention, different types of adhesives are coated on two surfaces of a substrate layer, and a high-viscosity surface is an acrylic adhesive layer which has high viscosity and is attached to and wraps a battery cell; the non-adhesive surface is a thermosensitive adhesive layer, is non-adhesive or slightly adhesive at normal temperature, generates viscosity after being hot-pressed by the battery packaging aluminum-plastic film, and can be firmly adhered to the battery packaging aluminum-plastic film, so that the battery core is prevented from loosening.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention is further described and illustrated by the following specific embodiments; the present invention will be described in detail with reference to the following examples, but the present invention is not limited to the following examples, and can be modified arbitrarily and implemented within a range not departing from the gist and equivalent range of the present invention. In the following description, "%" and "part" representing amounts are based on weight unless otherwise specified.
The double-sided adhesive tape provided by the invention comprises: the acrylic acid adhesive layer, the substrate layer, the thermosensitive adhesive layer and the release layer are arranged in sequence; the acrylic acid adhesive layer is used for being bonded with a battery cell, and the thermosensitive adhesive layer is used for being bonded with a battery packaging aluminum-plastic film.
Substrate layer: preferably one of a PET film, a PVC film, a PP film and a PBT film; the base layer may be a film made of polyolefin such as ethylene-vinyl acetate copolymer (EVA), polyester such as polyethylene naphthalate (PEN), polyarylate, polyurethane, polycarbonate, polyamide, Polyimide (PI), polyphenylene sulfide (PPS), polytetrafluoroethylene, a composite thereof, or the like; the thickness of the substrate layer is preferably 10 to 36 μm.
Acrylic adhesive layer: the specific components are not particularly limited as long as the adhesive property is provided at normal temperature and the battery performance is not adversely affected; the dry weight of the coating is preferably 30 to 70g/m2And a 180 DEG peel strength (measured according to PSTC-101) to the aluminum plastic film of more than 1.2kgf/25mm at normal temperature and a 180 DEG peel strength (measured according to PSTC-101) to the battery separator (CPP film) of more than 0.8kgf/25 mm.
Heat-sensitive adhesive layer: the preparation raw materials comprise the following components in percentage by weight: 40-50% of acryl resin, 10-15% of ethyl acetate, 3-10% of rosin resin, 3-10% of petroleum resin, 1-3% of cross-linking agent and 30-40% of toluene; the coating dry weight is preferably 30 to 50g/m2(ii) a The cross-linking agent is isocyanate cross-linking agent.
A release layer: preferably one of a PET release film, a PVC release film and a PE release film, and also can be an OPP release film, a PC release film, a PS release film, a PMMA release film, a BOPP release film, a TPX release film, a PTFE release film, a monosilicon release film, a polyester release film, a Teflon release film, a polyphenylene oxide release film, a polytetrafluoroethylene release film and the like; the thickness of the release layer is not particularly limited, and is preferably 20 to 50 μm.
Examples
1. Substrate layer and selection of release layer
2. Selection of raw materials for preparing thermosensitive adhesive layer
3. Selection of raw materials for preparing acrylic acid adhesive layer
In examples 1 to 10, acrylic adhesives of 0511 to 4, which are manufactured by Kunshan Chineseme Fine chemical Co., Ltd, were used as raw materials for preparing the acrylic adhesive layer.
4. Preparation method of double-sided adhesive tape
The method comprises the following steps: preparing a heat-sensitive adhesive; weighing a certain amount of heat-sensitive adhesive into a stirring container, weighing a cross-linking agent in a corresponding proportion, slowly adding the cross-linking agent into glue, stirring at the rotating speed of a stirrer of 400-;
step two: the prepared heat-sensitive adhesive is uniformly coated on one surface of a substrate layer, and the coating weight is 50g/m2Drying to obtain a heat-sensitive adhesive layer;
step three: then evenly coating the acrylic adhesive on the other surface of the substrate layer, wherein the coating weight is 70g/m2Drying to obtain an acrylic adhesive layer;
step four: and finally, attaching the surface with the thermosensitive adhesive layer to a release layer to obtain the double-sided adhesive tape.
5. Selection of contrast adhesive tape
A commercially available double-sided tape SDK8110 was selected as the comparative tape.
6. And (3) performance testing:
the double-sided tapes and the comparative tapes prepared in examples 1 to 10 were cut into 25mm wide sample tapes; after the release layer was peeled off, the acrylic adhesive layer was transferred to 25um pet film, and then one side having the thermosensitive adhesive layer was respectively stuck to a battery packaging aluminum plastic film and a battery separator (CPP film) on hot plates at 80 ℃ and 130 ℃ respectively, and after cooling for 4 hours, 180 ° peel strength was measured at a speed of 300 mm/min using a tensile tester. The test results are given in the following table:
it is true that the above-described embodiments are only preferred embodiments of the present invention, and any other embodiments that do not exceed the scope of the present invention are also included in the present invention.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (10)
1. A double-sided tape with a base material is characterized by comprising an acrylic acid adhesive layer, a base material layer, a thermosensitive adhesive layer and a release layer which are sequentially arranged; the preparation raw materials of the thermosensitive adhesive layer comprise the following components in percentage by weight:
2. the substrate double-sided adhesive tape according to claim 1, wherein the acrylic adhesive layer is coated in a dry amount of 30 to 70g/m2。
3. The substrate double-sided tape of claim 2, wherein the acrylic adhesive layer has a 180 ° peel strength greater than 1.2kgf/25mm to the aluminum plastic film.
4. The substrate double-sided tape according to claim 2, wherein the acrylic adhesive layer has a 180 ° peel strength to a battery separator of more than 0.8kgf/25 mm.
5. The double-sided adhesive tape with a substrate according to claim 1, wherein the substrate layer has a thickness of 10 to 36 μm.
6. The base material double-sided tape according to claim 1 or 5, wherein the base material layer is one of a PET film, a PVC film, a PP film, and a PBT film.
7. The substrate-carrying double-sided adhesive tape according to claim 1, wherein the heat-sensitive adhesive layer is coated in a dry amount of 30 to 50g/m2。
8. The substrate-carrying double-sided adhesive tape according to claim 1, wherein the crosslinking agent is an isocyanate-based crosslinking agent.
9. The substrate-carrying double-sided tape according to claim 1, wherein the release layer is one of a PET release film, a PVC release film, and a PE release film.
10. The application of the double-sided tape with the base material in battery packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916097.3A CN110669452B (en) | 2019-09-26 | 2019-09-26 | Double-sided adhesive tape with base material and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916097.3A CN110669452B (en) | 2019-09-26 | 2019-09-26 | Double-sided adhesive tape with base material and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110669452A true CN110669452A (en) | 2020-01-10 |
| CN110669452B CN110669452B (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910916097.3A Active CN110669452B (en) | 2019-09-26 | 2019-09-26 | Double-sided adhesive tape with base material and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110669452B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112898908A (en) * | 2021-01-27 | 2021-06-04 | 东莞市清鸿新材料科技有限公司 | Single-sided hot-melt pressure-sensitive adhesive tape for lithium battery and preparation method thereof |
| CN114149763A (en) * | 2021-11-29 | 2022-03-08 | 东莞市龙美电子科技有限公司 | Electrolyte-resistant adhesive tape for capacitor and preparation method thereof |
| WO2023046090A1 (en) * | 2021-09-24 | 2023-03-30 | 珠海冠宇电池股份有限公司 | Double-sided adhesive tape and lithium ion battery |
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| CN104610883A (en) * | 2014-12-30 | 2015-05-13 | 东莞市澳中电子材料有限公司 | Double sticky tape for lithium battery and preparation method for double sticky tape |
| CN105950043A (en) * | 2016-05-16 | 2016-09-21 | 东莞市澳中电子材料有限公司 | Adhesive tape capable of improving anti-dropping capacity of battery and manufacturing method of adhesive tape |
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| CN103834320A (en) * | 2014-02-26 | 2014-06-04 | 新纶科技（常州）有限公司 | Re-peel-off type special double-faced adhesive sheet for fixing flexible printed circuit board |
| CN104610883A (en) * | 2014-12-30 | 2015-05-13 | 东莞市澳中电子材料有限公司 | Double sticky tape for lithium battery and preparation method for double sticky tape |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112898908A (en) * | 2021-01-27 | 2021-06-04 | 东莞市清鸿新材料科技有限公司 | Single-sided hot-melt pressure-sensitive adhesive tape for lithium battery and preparation method thereof |
| WO2023046090A1 (en) * | 2021-09-24 | 2023-03-30 | 珠海冠宇电池股份有限公司 | Double-sided adhesive tape and lithium ion battery |
| CN114149763A (en) * | 2021-11-29 | 2022-03-08 | 东莞市龙美电子科技有限公司 | Electrolyte-resistant adhesive tape for capacitor and preparation method thereof |
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|---|---|
| CN110669452B (en) | 2024-03-12 |
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