CN113088214A - Hydrolyzable pressure-sensitive adhesive tape and processing technology thereof - Google Patents
Hydrolyzable pressure-sensitive adhesive tape and processing technology thereof Download PDFInfo
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- CN113088214A CN113088214A CN202110242713.9A CN202110242713A CN113088214A CN 113088214 A CN113088214 A CN 113088214A CN 202110242713 A CN202110242713 A CN 202110242713A CN 113088214 A CN113088214 A CN 113088214A
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- 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
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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- 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
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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- 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
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- 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
- C09J2433/00—Presence of (meth)acrylic polymer
-
- 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
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention relates to a hydrolyzable pressure-sensitive adhesive tape and a processing technology thereof, relating to the technical field of pressure-sensitive adhesives, which is prepared from a base material and a hydrolyzable pressure-sensitive adhesive; coating the hydrolyzed pressure-sensitive adhesive on the surface of the base material; the hydrolysis pressure-sensitive adhesive comprises the following components in parts by weight: 10-30 parts of butyl acrylate, 10-30 parts of vinyl acetate, 5-20 parts of acrylic acid, 1-10 parts of hydroxyethyl acrylate, 50 parts of ethanol, 0.01-0.1 part of initiator and 10-25 parts of flame retardant. The hydrolysable performance of the adhesive tape enables the adhesive tape to have higher environmental protection effect, and the metal shell applying the adhesive tape can be recycled.
Description
Technical Field
The invention relates to the technical field of pressure-sensitive adhesives, in particular to a hydrolyzable pressure-sensitive adhesive tape and a processing technology thereof.
Background
Pressure-sensitive adhesives are short for pressure-sensitive adhesives, and are a class of pressure-sensitive adhesives. The preparation method is mainly used for preparing the pressure-sensitive adhesive tape. Since the general raw material of pressure-sensitive adhesives is vinyl acetate, various adhesives have been developed based on polyvinyl chloride resin, vinyl ether copolymer and vinyl acetate-based glues, polyvinyl butyral-based glues, polyvinyl ether, polyisobutyl, SBR, various synthetic rubbers, and the like. When the pressure-sensitive adhesive is applied to a lithium battery shell, the pressure-sensitive adhesive is difficult to decompose and is finally buried in the land or river and lake as a block, so that the environmental pollution is serious, and the improvement is urgently needed.
Disclosure of Invention
The invention aims to provide a hydrolyzable pressure-sensitive adhesive tape with reasonable design and a processing technology thereof, aiming at the defects and the defects of the prior art, wherein the hydrolyzable performance of the hydrolyzable pressure-sensitive adhesive tape enables the hydrolyzable pressure-sensitive adhesive tape to have higher environmental protection efficacy, and a metal shell applying the adhesive tape can be recycled.
To achieve the above object, the hydrolyzable pressure-sensitive adhesive tape of the present invention is made of a substrate and a hydrolyzable pressure-sensitive adhesive; coating the hydrolyzed pressure-sensitive adhesive on the surface of the base material; the hydrolysis pressure-sensitive adhesive comprises the following components in parts by weight: 10-30 parts of butyl acrylate, 10-30 parts of vinyl acetate, 5-20 parts of acrylic acid, 1-10 parts of hydroxyethyl acrylate, 50 parts of ethanol, 0.01-0.1 part of initiator and 10-25 parts of flame retardant.
Further, the thickness of the base material is 20-200 μm.
Further, the dry glue thickness of the hydrolysis pressure-sensitive adhesive is 20-200 μm.
Further, the initiator is AIBN.
Further, the flame retardant is V6.
Further, the hydroxy ester of the hydrolyzed pressure sensitive adhesive: 29mgKOH/g, acid value: 156 mgKOH/g.
The processing technology of the hydrolyzable pressure-sensitive adhesive tape comprises the following processing steps:
step one, accurately weighing 10-30 parts of butyl acrylate, 10-30 parts of vinyl acetate, 5-20 parts of acrylic acid, 1-10 parts of hydroxyethyl acrylate and 0.01-0.1 part of initiator according to the proportion;
step two, uniformly mixing the weighed components to serve as a dropwise adding material for later use;
step three, adding 50 parts of ethanol into a reaction bottle, and heating to reflux;
step four, after refluxing, dropwise adding the dropwise adding material obtained in the step two into a reaction bottle, wherein the dropwise adding time is 4 hours;
step five, after finishing the dropwise addition, preserving the heat at 80 ℃ for 2 hours, after finishing the reaction, cooling to 50 ℃, adding 10-25 parts of flame retardant, and continuously stirring for 20min to obtain a hydrolyzable pressure-sensitive adhesive;
and step six, coating the hydrolyzable pressure-sensitive adhesive on the surface of the substrate with the thickness of 20-200 mu m, so that the thickness of the coated dry adhesive is 20-200 mu m.
After the components are adopted, the invention has the beneficial effects that: the invention provides a hydrolyzable pressure-sensitive adhesive tape and a processing technology thereof, wherein the hydrolyzable performance of the adhesive tape enables the adhesive tape to have higher environmental protection effect, and a metal shell applying the adhesive tape can be recycled.
Description of the drawings:
FIG. 1 is a table of data for an embodiment of the present invention.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
accurately weighing 22 parts of butyl acrylate, 15 parts of vinyl acetate, 10 parts of acrylic acid, 3 parts of hydroxyethyl acrylate and 0.05 part of AIBN according to the mixture ratio; uniformly mixing the weighed components to serve as a dropwise adding material for later use; adding 50 parts of ethanol into a reaction bottle, and heating to reflux; after refluxing, dropwise adding the dropwise adding material obtained in the second step into a reaction bottle, wherein the dropwise adding time is 4 hours; after finishing the dropwise addition, preserving the heat at 80 ℃ for 2 hours, after the reaction is finished, cooling to 50 ℃, adding 615 parts of flame retardant V, and continuously stirring for 20min to obtain a hydrolyzable pressure-sensitive adhesive; coating the hydrolyzable pressure-sensitive adhesive on the surface of a PET (polyethylene terephthalate) base material with the thickness of 100 mu m to ensure that the thickness of the coated dry adhesive is 50 mu m, thus obtaining the hydrolyzable pressure-sensitive adhesive tape; the flame retardant performance of the hydrolyzable pressure-sensitive adhesive tape is tested to be VTM-0, the insulation voltage is 500V, and the peeling force (180 ℃) is 18N/25mm by adopting the existing testing mode; the prepared hydrolyzable pressure-sensitive adhesive tape is smoothly pasted on a shell of a lithium battery to form a lithium battery shell protective film, the shell after the pasting is put into use, the lithium battery is recycled after the use, the hydrolyzable pressure-sensitive adhesive tape completely pasted can be completely dissolved after the lithium battery shell is soaked in hot water at 90 ℃ for 10 hours, no residual glue is left on the surface of the lithium battery shell, and the lithium battery shell can be continuously put into use.
Example two:
accurately weighing 20 parts of butyl acrylate, 12 parts of vinyl acetate, 15 parts of acrylic acid, 3 parts of hydroxyethyl acrylate and 0.06 part of AIBN according to the mixture ratio; uniformly mixing the weighed components to serve as a dropwise adding material for later use; adding 50 parts of ethanol into a reaction bottle, and heating to reflux; after refluxing, dropwise adding the dropwise adding material obtained in the second step into a reaction bottle, wherein the dropwise adding time is 4 hours; after finishing the dropwise addition, preserving the heat at 80 ℃ for 2 hours, after the reaction is finished, cooling to 50 ℃, adding 620 parts of flame retardant V, and continuously stirring for 20min to obtain a hydrolyzable pressure-sensitive adhesive; coating the hydrolyzable pressure-sensitive adhesive on the surface of a PET (polyethylene terephthalate) base material with the thickness of 100 mu m to ensure that the thickness of the coated dry adhesive is 50 mu m, thus obtaining the hydrolyzable pressure-sensitive adhesive tape; the flame retardant performance of the hydrolyzable pressure-sensitive adhesive tape is tested to be VTM-0, the insulation voltage is 500V, and the peeling force (180 ℃) is 20N/25mm by adopting the existing testing mode; the prepared hydrolyzable pressure-sensitive adhesive tape is smoothly pasted on a shell of a lithium battery to form a lithium battery shell protective film, the shell after the pasting is put into use, the lithium battery is recycled after the use, the hydrolyzable pressure-sensitive adhesive tape completely pasted can be completely dissolved after the lithium battery shell is soaked in hot water at 90 ℃ for 10 hours, no residual glue is left on the surface of the lithium battery shell, and the lithium battery shell can be continuously put into use.
Example three:
accurately weighing 30 parts of butyl acrylate, 7 parts of vinyl acetate, 10 parts of acrylic acid, 3 parts of hydroxyethyl acrylate and 0.08 part of AIBN according to the mixture ratio; uniformly mixing the weighed components to serve as a dropwise adding material for later use; adding 50 parts of ethanol into a reaction bottle, and heating to reflux; after refluxing, dropwise adding the dropwise adding material obtained in the second step into a reaction bottle, wherein the dropwise adding time is 4 hours; after finishing the dropwise addition, preserving the heat at 80 ℃ for 2 hours, after the reaction is finished, cooling to 50 ℃, adding 620 parts of flame retardant V, and continuously stirring for 20min to obtain a hydrolyzable pressure-sensitive adhesive; coating the hydrolyzable pressure-sensitive adhesive on the surface of a PET (polyethylene terephthalate) base material with the thickness of 100 mu m to ensure that the thickness of the coated dry adhesive is 50 mu m, thus obtaining the hydrolyzable pressure-sensitive adhesive tape; the flame retardant performance of the hydrolyzable pressure-sensitive adhesive tape is tested to be VTM-0, the insulation voltage is 500V, and the peeling force (180 ℃) is 22N/25mm by adopting the existing testing mode; the prepared hydrolyzable pressure-sensitive adhesive tape is smoothly pasted on a shell of a lithium battery to form a lithium battery shell protective film, the shell after the pasting is put into use, the lithium battery is recycled after the use, the hydrolyzable pressure-sensitive adhesive tape completely pasted can be completely dissolved after the lithium battery shell is soaked in hot water at 90 ℃ for 10 hours, no residual glue is left on the surface of the lithium battery shell, and the lithium battery shell can be continuously put into use.
Comparative example:
coating the pressure-sensitive adhesive in the prior art on the surface of a PET (polyethylene terephthalate) base material with the thickness of 100 mu m to ensure that the thickness of the coated dry adhesive is 50 mu m, thus obtaining the hydrolyzable pressure-sensitive adhesive tape; the flame retardant performance of the hydrolyzable pressure-sensitive adhesive tape is tested to be VTM-0, the insulation voltage is 450V, and the peeling force (180 ℃) is 18N/25mm by adopting the existing testing mode; the adhesive tape is flatly pasted on a shell of a lithium battery to form a lithium battery shell protective film, the shell after the pasting is finished is put into use, the lithium battery is recycled after the use, after the lithium battery shell is soaked in hot water at 90 ℃ for 10 hours, the adhesive tape completely pasted is not completely dissolved, glue is remained on the surface of the lithium battery shell, and the lithium battery shell can not be continuously put into use.
Referring to fig. 1, the flame retardant properties of the hydrolyzable pressure-sensitive adhesive tape produced in the above-described examples one to three: VTM-0; insulation voltage: 500V; peel force (180 °): 15-25N/25 mm; water-hydrolyzable property: the adhesive tape can be completely dissolved after being soaked in hot water at 90 ℃ for 10 hours.
After the components are adopted, the beneficial effects of the specific embodiment are as follows: the embodiment provides a hydrolyzable pressure-sensitive adhesive tape and a processing technology thereof, wherein the hydrolyzable performance of the hydrolyzable pressure-sensitive adhesive tape enables the hydrolyzable pressure-sensitive adhesive tape to have higher environmental protection effect, and a metal shell applying the adhesive tape can be recycled.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. A hydrolyzable pressure-sensitive adhesive tape characterized in that: it is made of base material and hydrolyzable pressure-sensitive adhesive; coating the hydrolyzed pressure-sensitive adhesive on the surface of the base material; the hydrolysis pressure-sensitive adhesive comprises the following components in parts by weight: 10-30 parts of butyl acrylate, 10-30 parts of vinyl acetate, 5-20 parts of acrylic acid, 1-10 parts of hydroxyethyl acrylate, 50 parts of ethanol, 0.01-0.1 part of initiator and 10-25 parts of flame retardant.
2. A hydrolyzable pressure-sensitive adhesive tape according to claim 1, wherein: the thickness of the base material is 20-200 μm.
3. A hydrolyzable pressure-sensitive adhesive tape according to claim 1, wherein: the dry adhesive thickness of the hydrolysis pressure-sensitive adhesive is 20-200 μm.
4. A hydrolyzable pressure-sensitive adhesive tape according to claim 1, wherein: the initiator is AIBN.
5. A hydrolyzable pressure-sensitive adhesive tape according to claim 1, wherein: the flame retardant is V6.
6. A hydrolyzable pressure-sensitive adhesive tape according to claim 1, wherein: the hydroxyl ester of the hydrolyzed pressure sensitive adhesive: 29mgKOH/g, acid value: 156 mgKOH/g.
7. A processing technology of a hydrolyzable pressure-sensitive adhesive tape comprises the following processing steps:
accurately weighing 10-30 parts of butyl acrylate, 10-30 parts of vinyl acetate, 5-20 parts of acrylic acid, 1-10 parts of hydroxyethyl acrylate and 0.01-0.1 part of initiator according to a ratio;
step two, uniformly mixing the weighed components to serve as dropwise adding materials for later use;
adding 50 parts of ethanol into a reaction bottle, and heating to reflux;
after refluxing, dropwise adding the dropwise adding material obtained in the second step into a reaction bottle for 4 hours;
step five, after finishing the dropwise adding, preserving the heat at 80 ℃ for 2 hours, after finishing the reaction, cooling to 50 ℃, adding 10-25 parts of flame retardant, and continuously stirring for 20min to obtain a hydrolyzable pressure-sensitive adhesive;
and step (VI), coating the hydrolyzable pressure-sensitive adhesive on the surface of the substrate with the thickness of 20-200 μm, so that the thickness of the coated dry adhesive is 20-200 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110242713.9A CN113088214A (en) | 2021-03-05 | 2021-03-05 | Hydrolyzable pressure-sensitive adhesive tape and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110242713.9A CN113088214A (en) | 2021-03-05 | 2021-03-05 | Hydrolyzable pressure-sensitive adhesive tape and processing technology thereof |
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| CN113088214A true CN113088214A (en) | 2021-07-09 |
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| CN202110242713.9A Pending CN113088214A (en) | 2021-03-05 | 2021-03-05 | Hydrolyzable pressure-sensitive adhesive tape and processing technology thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61238878A (en) * | 1985-04-16 | 1986-10-24 | Dainippon Ink & Chem Inc | Production of pressure-sensitive adhesive |
| JPH01144488A (en) * | 1987-12-01 | 1989-06-06 | Nitto Denko Corp | Pressure-sensitive adhesive tape or sheet |
| CN102533164A (en) * | 2011-12-07 | 2012-07-04 | 新丰杰力电工材料有限公司 | Thermo-sensitive acrylate pressure-sensitive adhesive and adhesive tape and preparation method of adhesive and adhesive tape |
| CN112322200A (en) * | 2020-09-28 | 2021-02-05 | 广东弘擎电子材料科技有限公司 | Easily-removed hydrolyzable label paper tape and preparation method thereof |
-
2021
- 2021-03-05 CN CN202110242713.9A patent/CN113088214A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61238878A (en) * | 1985-04-16 | 1986-10-24 | Dainippon Ink & Chem Inc | Production of pressure-sensitive adhesive |
| JPH01144488A (en) * | 1987-12-01 | 1989-06-06 | Nitto Denko Corp | Pressure-sensitive adhesive tape or sheet |
| CN102533164A (en) * | 2011-12-07 | 2012-07-04 | 新丰杰力电工材料有限公司 | Thermo-sensitive acrylate pressure-sensitive adhesive and adhesive tape and preparation method of adhesive and adhesive tape |
| CN112322200A (en) * | 2020-09-28 | 2021-02-05 | 广东弘擎电子材料科技有限公司 | Easily-removed hydrolyzable label paper tape and preparation method thereof |
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