CN114479694A - Ultrathin adhesive tape for wireless charging nanocrystalline and preparation method thereof - Google Patents
Ultrathin adhesive tape for wireless charging nanocrystalline and preparation method thereof Download PDFInfo
- Publication number
- CN114479694A CN114479694A CN202111499979.8A CN202111499979A CN114479694A CN 114479694 A CN114479694 A CN 114479694A CN 202111499979 A CN202111499979 A CN 202111499979A CN 114479694 A CN114479694 A CN 114479694A
- Authority
- CN
- China
- Prior art keywords
- parts
- adhesive layer
- layer
- wireless charging
- acrylate
- 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.)
- Pending
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- 239000002390 adhesive tape Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims description 23
- 239000010410 layer Substances 0.000 claims abstract description 96
- 238000003860 storage Methods 0.000 claims abstract description 51
- 239000003522 acrylic cement Substances 0.000 claims abstract description 44
- 239000000178 monomer Substances 0.000 claims abstract description 38
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 33
- 239000012790 adhesive layer Substances 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 32
- 229920005989 resin Polymers 0.000 claims abstract description 32
- 239000003999 initiator Substances 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 69
- 239000003292 glue Substances 0.000 claims description 53
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 31
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 30
- 239000000047 product Substances 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 18
- 229920000728 polyester Polymers 0.000 claims description 15
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000002159 nanocrystal Substances 0.000 claims description 10
- 239000011265 semifinished product Substances 0.000 claims description 10
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 7
- 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 claims description 7
- 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 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 5
- CYUZOYPRAQASLN-UHFFFAOYSA-N 3-prop-2-enoyloxypropanoic acid Chemical compound OC(=O)CCOC(=O)C=C CYUZOYPRAQASLN-UHFFFAOYSA-N 0.000 claims description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 5
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- FTALTLPZDVFJSS-UHFFFAOYSA-N 2-(2-ethoxyethoxy)ethyl prop-2-enoate Chemical compound CCOCCOCCOC(=O)C=C FTALTLPZDVFJSS-UHFFFAOYSA-N 0.000 claims description 3
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 3
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 3
- LVGFPWDANALGOY-UHFFFAOYSA-N 8-methylnonyl prop-2-enoate Chemical compound CC(C)CCCCCCCOC(=O)C=C LVGFPWDANALGOY-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- IAXXETNIOYFMLW-COPLHBTASA-N [(1s,3s,4s)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] 2-methylprop-2-enoate Chemical compound C1C[C@]2(C)[C@@H](OC(=O)C(=C)C)C[C@H]1C2(C)C IAXXETNIOYFMLW-COPLHBTASA-N 0.000 claims description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 3
- 229940119545 isobornyl methacrylate Drugs 0.000 claims description 3
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 claims description 3
- 150000003505 terpenes Chemical class 0.000 claims description 3
- 235000007586 terpenes Nutrition 0.000 claims description 3
- CCJAYIGMMRQRAO-UHFFFAOYSA-N 2-[4-[(2-hydroxyphenyl)methylideneamino]butyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCCN=CC1=CC=CC=C1O CCJAYIGMMRQRAO-UHFFFAOYSA-N 0.000 claims description 2
- POLZHVHESHDZRD-UHFFFAOYSA-N 2-hydroxyethyl 2-methylprop-2-enoate;phosphoric acid Chemical compound OP(O)(O)=O.CC(=C)C(=O)OCCO POLZHVHESHDZRD-UHFFFAOYSA-N 0.000 claims description 2
- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 229920006267 polyester film Polymers 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract 2
- 239000004819 Drying adhesive Substances 0.000 abstract 1
- 229920006222 acrylic ester polymer Polymers 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 26
- 229920000139 polyethylene terephthalate Polymers 0.000 description 12
- 239000005020 polyethylene terephthalate Substances 0.000 description 12
- 229920002125 Sokalan® Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 229920003169 water-soluble polymer Polymers 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- CHIHQLCVLOXUJW-UHFFFAOYSA-N benzoic anhydride Chemical compound C=1C=CC=CC=1C(=O)OC(=O)C1=CC=CC=C1 CHIHQLCVLOXUJW-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Classifications
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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
-
- 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
- C08F220/1802—C2-(meth)acrylate, e.g. ethyl (meth)acrylate
-
- 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
- C08F220/1803—C3-(meth)acrylate, e.g. (iso)propyl (meth)acrylate
-
- 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
-
- 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
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
-
- 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
- C09J133/062—Copolymers with monomers not covered by C09J133/06
- C09J133/066—Copolymers with monomers not covered by C09J133/06 containing -OH groups
-
- 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
- C09J133/24—Homopolymers or copolymers of amides or imides
- C09J133/26—Homopolymers or copolymers of acrylamide or methacrylamide
-
- 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
-
- 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
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
-
- 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
- C09J2301/40—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
-
- 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
Landscapes
- 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 discloses an ultrathin adhesive tape for wireless charging nanocrystalline, which comprises a substrate layer, a first adhesive layer and a second adhesive layer which are arranged on two sides of the substrate layer, and a light release layer and a heavy release layer which are respectively positioned on the outer sides of the first adhesive layer and the second adhesive layer, wherein the thicknesses of the first adhesive layer and the second adhesive layer are both 1-1.5 mu m, the first adhesive layer and the second adhesive layer are both high-storage-modulus acrylic adhesive layers, the high-storage-modulus acrylic adhesive layers are obtained by coating and drying adhesive liquid, and the adhesive liquid consists of the following components in parts by weight: 100 parts of high storage modulus acrylic polymer, 10-15 parts of tackifying resin, 0.5-1.0 part of curing agent, and 450 parts of solvent 420-: 30-90 parts of soft monomer, 9-60 parts of hard monomer, 1-5 parts of functional monomer, 1-10 parts of special monomer, 0.1-10 parts of initiator, 40-60 parts of solvent and 20-40 parts of tackifying resin; the invention adopts the PET polyester film with ultrathin requirement and the high storage modulus acrylic ester polymer, satisfies the requirements of wireless charging lightness and thinness, and is used for bonding the nanocrystalline magnetic conductive sheet.
Description
Technical Field
The invention belongs to the technical field of protective films, and particularly relates to an ultrathin adhesive tape for wireless charging nanocrystals and a preparation method thereof.
Background
With the development of science and technology, more and more electronic products are touched by people: computers, mobile phones, tablets, etc. These electronic product battery charging problems have led to the development of wired and wireless charging technologies. The wireless charging technology enables the charger to get rid of the limitation of a circuit, and the complete separation of an electric appliance and a power supply is realized. The charger has better advantages than the traditional charger in the aspects of safety, flexibility and the like. In the present day of rapid development of science and technology, wireless charging shows a wide development prospect.
As one of key parts of a wireless charging technology, a magnetic material plays a role in increasing an induction field and shielding coil interference in wireless charging equipment, and the existing nanocrystalline magnetic-conducting thin sheet becomes a mainstream magnetic shielding material solution for a wireless charging receiving end of an electronic product such as a mobile phone due to the characteristics of excellent soft magnetic property and ultrathin thickness. And the single-layer nanocrystalline magnetic conductive sheet is subjected to multilayer superposition after being coated with double-sided adhesive tape, then is subjected to magnetic crushing treatment, and then is subjected to multilayer compounding or not subjected to multilayer compounding, so that the high-power nanocrystalline magnetic conductive sheet for wireless charging is obtained.
In the broken magnetic attaching process, the magnetic conductive sheet is very easily compressed and deformed under a larger pressure, so that the thickness of the sheet is not uniform, and the resistance value drifts, thereby reducing the charging power of wireless charging. The thickness of glue coated on the two sides of the polyester layer of the traditional polyester double-sided adhesive tape is thicker, so that the overall thickness of the adhesive tape is thicker, and the traditional adhesive material cannot meet the requirement of thinning development of electronic products. Meanwhile, the common double-sided adhesive tape has certain cohesiveness but poor rebound resilience, and can form the defects of irreversible deformation and the like after extrusion.
Disclosure of Invention
The invention aims to provide an ultrathin adhesive tape for wireless charging nanocrystalline, which adopts a PET (polyethylene terephthalate) polyester film with ultrathin requirements and an acrylic polymer with high storage modulus to meet the requirements of wireless charging lightness and thinness and is used for bonding nanocrystalline magnetic conductive sheets. The formula and the preparation method of the high-storage-modulus acrylate polymer provided by the invention can ensure the effective thickness of the magnetic conductive sheet in the magnetic crushing process, improve the supportable charging power and further realize the design of a high-power magnetic sheet.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an ultra-thin sticky tape for wireless nanocrystalline that charges, includes the substrate layer, sets up in the first glue film and the second glue film of substrate layer both sides to and be located the light of first glue film and the second glue film outside respectively from the type layer with heavily from the type layer, the thickness on first glue film and second glue film is 1 ~ 1.5 mu m, first glue film is high storage modulus acrylic acid glue film with the second glue film, high storage modulus acrylic acid glue film is dried by the glue solution coating and is obtained, and this glue solution comprises following weight part:
wherein:
the high storage modulus acrylic polymer composition is as follows:
the technical scheme of further improvement in the technical scheme is as follows:
1. in the scheme, the soft monomer is one or more of ethyl acrylate, butyl acrylate, isooctyl acrylate, n-propyl acrylate and isobutyl acrylate;
the hard monomer is one or more of methyl acrylate, methyl methacrylate, vinyl acetate, isobornyl methacrylate, styrene, acrylamide, N-hydroxymethyl acrylamide and acrylic acid.
2. In the scheme, the functional monomer is one or more of hydroxyethyl acrylate, acrylic acid, methacrylic acid, hydroxypropyl acrylate and acrylamide.
3. In the scheme, the special monomer is one or more of beta-acryloxypropionic acid, 2- (2-ethoxyethoxy) ethyl acrylate, isodecyl acrylate, cycloaliphatic acrylate and hydroxyethyl methacrylate phosphate.
4. In the above scheme, the initiator is one or two of azobisisobutyronitrile or dibenzoyl peroxide.
5. In the scheme, the tackifying resin is one or more of rosin modified resin, terpene modified resin, carbon nine petroleum resin and carbon five petroleum resin.
6. In the scheme, the base material layer is made of polyester PET, the thickness of the base material layer is 1.5-1.7 mu m, and the surface tension of the base material layer is 54-56 dyne.
7. In the scheme, the light release layer is a polyester release film formed by coating an organic silicon release substance on the surface of a transparent polyester film, and the residual adhesion rate is more than or equal to 85 percent; the thickness can be 25 μm, and the release force is 10-20 gf/in; and the acrylic adhesive layers are attached to the two surfaces of the polyester film.
8. In the scheme, the high-storage-modulus acrylic adhesive layer can be one of polyurethane, acrylic acid, epoxy, hot melt adhesive and rubber, and the acrylic adhesive is preferably selected, and the performance requirement of high adhesion of the thin coating of the adhesive layer is met by designing soft and hard monomer polymerization, high-storage-modulus and high-adhesion formula design and adding a certain amount of tackifying resin, curing agent and the like. The thickness of the adhesive layer can be 1-1.5 μm;
9. in the scheme, the heavy release layer is a polyester release film formed by coating an organic silicon release substance on the surface of a transparent polyester film, and the residual adhesion rate is more than or equal to 85 percent; the thickness can be 36 μm, 50 μm, 75 μm, the release force is 40-70gf/in, and the acrylic glue layer is adhered to the two sides of the polyester PET film.
The other technical scheme of the invention is as follows: a preparation method of an ultrathin adhesive tape for wireless charging of nanocrystals comprises the following steps:
s1, coating the high-storage-modulus acrylic adhesive layer on the coating surface of the heavy release film by adopting a dimple coating process, and drying the coated acrylic adhesive layer in an oven at a linear speed of 15-20m/min to obtain a second adhesive layer; then, the base material layer is attached to the second adhesive layer and is rolled to obtain a semi-finished product; the thickness of the second adhesive layer is 1.0-1.5 μm, and the peeling force is 800-1000gf/25 mm;
s2, directly coating a high-storage-modulus acrylic adhesive layer on the non-bonded surface of the semi-finished substrate layer by adopting a micro-concave coating process, and drying the coated acrylic adhesive layer in an oven at a linear speed of 15-20m/min to obtain a first adhesive layer; then, attaching the light release film to the first adhesive layer, and rolling to obtain a finished product; the thickness of the first adhesive layer is 1.0-1.5 μm, and the peeling force is 800-1000gf/25 mm;
(3) and (5) curing the finished product for 72H at the temperature of 45 ℃ to finish the processing of the finished product, thereby obtaining the ultrathin adhesive tape.
The technical scheme of further improvement in the technical scheme is as follows:
1. in the scheme, the preparation method of the high-storage-modulus acrylic adhesive layer glue comprises the following steps:
s01, preparing a high storage modulus acrylic polymer;
s02, adding the prepared high storage modulus acrylic polymer into a mixing kettle, stirring at the rotation speed of 100-300 rpm, gradually adding 0.1-1.0 part of curing agent, 10-15 parts of tackifying resin and 420-450 parts of ethyl acetate at room temperature, stirring for 0.5h, and discharging to obtain the high storage modulus acrylic adhesive layer glue.
The technical scheme of further improvement in the technical scheme is as follows:
2. in the above scheme, the preparation method of the acrylic polymer with high storage modulus in step S01 is as follows:
sequentially adding 30-90 parts of soft monomer, 9-60 parts of hard monomer, 1-5 parts of functional monomer, 1-10 parts of special monomer and part of solvent ethyl acetate at the bottom of a reaction tank provided with a condenser, a stirring paddle and a thermometer, uniformly mixing, stirring at a stirring speed of 80-100R/min and 30min under the protection of nitrogen (the gas flow is 0.2ML/min), heating to 65-68 ℃, starting adding 40% of initiator solution, initiating, and timing for 2-3 h; adding 30 percent of initiator solution for the second time, heating to 75-80 ℃, and reacting for 3 hours; and adding 30 percent of initiator solution for the third time, heating to 75-82 ℃, carrying out reflux reaction for 3h, cooling to 50 ℃, and discharging to obtain the acrylic polymer with high storage modulus.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the ultrathin adhesive tape for the wireless charging nanocrystalline meets the performance requirement of thin coating and high viscosity of an adhesive layer through the formula design of soft and hard special monomer polymerization, high storage modulus and high cohesiveness and the addition of a certain amount of tackifying resin, curing agent and the like.
2. The invention relates to a preparation method of a wireless charging nanocrystalline ultrathin adhesive tape, which adopts a PET polyester film with ultrathin requirements and an acrylic polymer with high storage modulus to meet the requirements of wireless charging lightness and thinness and is used for laminating and bonding nanocrystalline magnetic conductive sheets.
3. According to the invention, the ultrathin double-sided adhesive coated with the acrylate polymer with higher storage modulus is used for interlayer bonding, the resilience is excellent after being pressed, the effective thickness of the magnetic conductive sheet is ensured, the supportable charging power is further improved, and the design of a high-power magnetic sheet is further realized.
Detailed Description
The invention is further described below with reference to the following examples:
example 1
In this embodiment, a light release layer, a high storage modulus acrylic adhesive layer, an ultrathin substrate layer (preferably 1.5 μmPET), a high storage modulus acrylic adhesive layer, and a heavy release layer are sequentially disposed from top to bottom; the high storage modulus acrylic adhesive layer comprises the following components:
acrylic acid polymer: 100 parts of (a) a water-soluble polymer,
curing agent: 0.5 part by weight of a reaction kettle,
tackifying resin: 12 parts of (a) to (b),
ethyl acetate: 440 parts of a mixture;
wherein:
the acrylic polymer composition was as follows:
ethyl acrylate: 60 parts of (a) to (b),
vinyl acetate: 10 parts of (a) to (b),
beta-acryloxypropionic acid: 4, preparing 4 parts of the mixture,
hydroxyethyl acrylate: 1.3 parts of (A) a stabilizer,
ethyl acetate: 50 parts of (by weight) of a mineral oil,
azobisisobutyronitrile: 0.5 part by weight of a reaction kettle,
rosin modified resin: 28 parts.
The invention also provides a preparation method of the acrylic polymer, which comprises the following steps:
sequentially adding the soft monomer, the hard monomer, the functional monomer, the special monomer and part of solvent ethyl acetate which are prepared according to the above proportion into the reaction bottom provided with a condenser, a stirring paddle and a thermometer, uniformly mixing, stirring at a stirring speed of 90R/min and 30min under the protection of nitrogen (the gas flow is 0.2ML/min), heating to 68 ℃, starting adding 40% of initiator solution, initiating, and timing for 3 hours; adding 30 percent of initiator solution for the second time, heating to 75 ℃, and reacting for 3 hours; and adding 30 percent of initiator solution for the third time, heating to 80 ℃, carrying out reflux reaction for 3 hours, cooling to 50 ℃, and discharging to obtain the acrylic polymer with high storage modulus.
The preparation method of the high-storage-modulus acrylic adhesive layer glue comprises the following steps:
and adding the prepared acrylic polymer with high storage modulus into a mixing kettle, stirring at the rotation speed of 300rpm, gradually adding a curing agent, tackifying resin and ethyl acetate at room temperature, stirring for 0.5h, and discharging to obtain the acrylic adhesive layer adhesive with high storage modulus.
Meanwhile, the invention also provides a preparation method of the wireless charging nanocrystalline ultrathin double-sided adhesive tape, which comprises the following steps:
1. in the first procedure, a high-storage-modulus acrylic acid adhesive layer is coated on the coating surface of the heavy release film by adopting a micro-concave coating process, and then the coated acrylic acid adhesive layer is dried by an oven at a linear speed of 20 m/min; then, the ultrathin polyester PET is attached to an acrylic adhesive layer and is rolled to obtain a semi-finished product; the thickness of the dry glue is 1.0 μm, and the peeling force is 800-1000gf/25 mm;
2. the second procedure is that a high storage modulus acrylic acid glue layer is directly coated on the non-binding surface of the ultrathin polyester PET of the semi-finished product by adopting a micro-concave coating process, and the coated product is dried by an oven at the linear speed of 15 m/min; then, adhering the light release film to an acrylic acid adhesive layer, and rolling to obtain a finished product; the thickness of the dry glue is 1.0 μm, and the peeling force is 800-1000gf/25 mm;
3. and (5) curing the finished product for 72H at the temperature of 45 ℃ to finish the processing of the finished product.
Example 2
In this embodiment, a light release layer, a high storage modulus acrylic adhesive layer, an ultrathin substrate layer (preferably 1.5 μmPET), a high storage modulus acrylic adhesive layer, and a heavy release layer are sequentially disposed from top to bottom; the high storage modulus acrylic adhesive layer comprises the following components:
acrylic acid polymer: 100 parts of (a) a water-soluble polymer,
curing agent: 0.7 part by weight of a reaction kettle,
tackifying resin: 12 parts of (a) to (b),
ethyl acetate: 440 parts of a mixture;
wherein:
the acrylic polymer composition was as follows:
butyl acrylate: 50 parts of (a) a mixture of (b),
isobornyl methacrylate: 20 parts of (by weight), and mixing the components,
hydroxypropyl acrylate: 3 parts of (a) to (b),
acrylic acid: 1.5 parts of (A) a reaction product,
hydroxyethyl methacrylate phosphate ester: 8 parts of (a) a mixture of (b),
butanone: 40 parts of (a) to (b),
dibenzoyl oxide: 5 parts of (a) a mixture of (b),
terpene modified resin: 35 parts of (A).
The invention also provides a preparation method of the acrylic polymer, which comprises the following steps:
sequentially adding the soft monomer, the hard monomer, the functional monomer, the special monomer and part of solvent ethyl acetate which are prepared according to the above proportion into the reaction bottom provided with a condenser, a stirring paddle and a thermometer, uniformly mixing, stirring at a stirring speed of 100R/min and 30min under the protection of nitrogen (the gas flow is 0.2ML/min), heating to 68 ℃, starting adding 40% of initiator solution, and timing for 2.5 hours after initiation; adding 30 percent of initiator solution for the second time, heating to 80 ℃, and reacting for 3 hours; and adding 30 percent of initiator solution for the third time, heating to 82 ℃, carrying out reflux reaction for 3 hours, cooling to 50 ℃, and discharging to obtain the acrylic polymer with high storage modulus.
The preparation method of the high-storage-modulus acrylic adhesive layer glue comprises the following steps:
and adding the prepared acrylic polymer with high storage modulus into a mixing kettle, stirring at the rotation speed of 300rpm, gradually adding a curing agent, tackifying resin and ethyl acetate at room temperature, stirring for 0.5h, and discharging to obtain the acrylic adhesive layer glue with high storage modulus.
Meanwhile, the invention also provides a preparation method of the wireless charging nanocrystalline ultrathin double-sided adhesive tape, which comprises the following steps:
1. in the first procedure, a high-storage-modulus acrylic acid adhesive layer is coated on the coating surface of the heavy release film by adopting a micro-concave coating process, and then the coated acrylic acid adhesive layer is dried by an oven at a linear speed of 18 m/min; then, the ultrathin polyester PET is attached to an acrylic adhesive layer and is rolled to obtain a semi-finished product; the thickness of the dry glue is 1.5 mu m, and the peeling force is 800-1000gf/25 mm;
2. the second procedure is that a high storage modulus acrylic acid glue layer is directly coated on the non-binding surface of the ultrathin polyester PET of the semi-finished product by a micro-concave coating process, and then dried by an oven at a linear speed of 20 m/min; then attaching an acrylic acid glue layer to the coating surface of the light release film, and rolling to obtain a finished product; the thickness of the dry glue is 1.0 μm, and the peeling force is 800-1000gf/25 mm;
3. and (5) curing the finished product for 72H at the temperature of 45 ℃ to finish the processing of the finished product.
Example 3
In this embodiment, a light release layer, a high storage modulus acrylic adhesive layer, an ultrathin substrate layer (preferably 1.5 μmPET), a high storage modulus acrylic adhesive layer, and a heavy release layer are sequentially disposed from top to bottom; the high storage modulus acrylic adhesive layer comprises the following components:
acrylic acid polymer: 100 parts of (a) a water-soluble polymer,
curing agent: 0.9 part by weight of a reaction kettle,
tackifying resin: 15 parts of (a) to (b),
ethyl acetate: 450 parts of a mixture;
wherein:
the acrylic polymer composition was as follows:
isooctyl acrylate: 90 parts of (a) a mixture of (b),
acrylamide: 2 parts of (a) to (b),
n-methylolacrylamide: 30 parts of (by weight) of (B),
cycloaliphatic acrylate: 3 parts of (a) to (b),
isodecyl acrylate: 4, preparing 4 parts of the mixture,
ethyl acetate: 60 parts of (a) to (b),
azobisisobutyronitrile: 6 parts of (a) a mixture of (b),
rosin modified resin: and 20 parts.
The invention also provides a preparation method of the acrylic polymer, which comprises the following steps:
sequentially adding the soft monomer, the hard monomer, the functional monomer, the special monomer and part of solvent ethyl acetate which are prepared according to the above proportion into the reaction bottom provided with a condenser, a stirring paddle and a thermometer, uniformly mixing, stirring at a stirring speed of 80R/min and 30min under the protection of nitrogen (the gas flow is 0.2ML/min), heating to 65 ℃, starting adding 40% of initiator solution, initiating, and timing for 2-3 h; adding 30 percent of initiator solution for the second time, heating to 78 ℃, and reacting for 3 hours; and adding 30 percent of initiator solution for the third time, heating to 75 ℃, performing reflux reaction for 3 hours, cooling to 50 ℃, and discharging to obtain the acrylic polymer with high storage modulus.
The preparation method of the high-storage-modulus acrylic adhesive layer glue comprises the following steps:
and adding the prepared acrylic polymer with high storage modulus into a mixing kettle, stirring at the rotation speed of 300rpm, gradually adding a curing agent, tackifying resin and ethyl acetate at room temperature, stirring for 0.5h, and discharging to obtain the acrylic adhesive layer adhesive with high storage modulus.
Meanwhile, the invention also provides a preparation method of the wireless charging nanocrystalline ultrathin double-sided adhesive tape, which comprises the following steps:
1. in the first procedure, a high-storage-modulus acrylic acid adhesive layer is coated on the coating surface of the heavy release film by adopting a micro-concave coating process, and then the coated acrylic acid adhesive layer is dried by an oven at a linear speed of 18 m/min; then, the ultrathin polyester PET is attached to an acrylic adhesive layer and is rolled to obtain a semi-finished product; the thickness of the dry glue is 1.0 μm, and the peeling force is 800-1000gf/25 mm;
2. the second procedure is that a high storage modulus acrylic acid glue layer is directly coated on the non-binding surface of the ultrathin polyester PET of the semi-finished product by a micro-concave coating process, and then dried by an oven at a linear speed of 20 m/min; then attaching an acrylic acid glue layer to the coating surface of the light release film, and rolling to obtain a finished product; the thickness of the dry glue is 1.5 μm, and the peeling force is 800-1000gf/25 mm;
3. and (5) curing the finished product for 72H at the temperature of 45 ℃ to finish the processing of the finished product.
Example 4
In this embodiment, a light release layer, a high storage modulus acrylic adhesive layer, an ultrathin substrate layer (preferably 1 μmPET), a high storage modulus acrylic adhesive layer, and a heavy release layer are sequentially disposed from top to bottom; the high storage modulus acrylic adhesive layer comprises the following components:
acrylic acid polymer: 100 parts of (a) a water-soluble polymer,
curing agent: 1.0 part by weight of a reaction product,
tackifying resin: 12 parts of (a) to (b),
ethyl acetate: 430 parts of (a);
wherein:
the acrylic polymer composition was as follows:
n-propyl acrylate: 70 parts of (a) to (b),
acrylic acid: 50 parts of (a) a mixture of (b),
2- (2-ethoxyethoxy) ethyl acrylate: 8 parts of (a) a mixture of (b),
hydroxyethyl acrylate: 2 parts of (a) to (b),
ethyl acetate: 50 parts of (a) a mixture of (b),
azobisisobutyronitrile: 0.5 part by weight of a reaction kettle,
rosin modified resin: 28 parts.
The invention also provides a preparation method of the acrylic polymer, which comprises the following steps:
sequentially adding the soft monomer, the hard monomer, the functional monomer, the special monomer and part of solvent ethyl acetate which are prepared according to the above proportion into the reaction bottom provided with a condenser, a stirring paddle and a thermometer, uniformly mixing, stirring at a stirring speed of 100R/min and 30min under the protection of nitrogen (the gas flow is 0.2ML/min), heating to 65 ℃, starting adding 40% of initiator solution, initiating, and timing for 2-3 h; adding 30 percent of initiator solution for the second time, heating to 80 ℃, and reacting for 3 hours; adding 30 percent of initiator solution for the third time, heating to 75-82 ℃, carrying out reflux reaction for 3h, cooling to 50 ℃, and discharging to obtain the acrylic polymer with high storage modulus.
The preparation method of the high-storage-modulus acrylic adhesive layer glue comprises the following steps:
and adding the prepared acrylic polymer with high storage modulus into a mixing kettle, stirring at the rotation speed of 300rpm, gradually adding a curing agent, tackifying resin and ethyl acetate at room temperature, stirring for 0.5h, and discharging to obtain the acrylic adhesive layer adhesive with high storage modulus.
Meanwhile, the invention also provides a preparation method of the wireless charging nanocrystalline ultrathin double-sided adhesive tape, which comprises the following steps:
1. in the first procedure, a high-storage-modulus acrylic acid adhesive layer is coated on the coating surface of the heavy release film by adopting a micro-concave coating process, and then the coated acrylic acid adhesive layer is dried by an oven at a linear speed of 15 m/min; then, the ultrathin polyester PET is attached to an acrylic adhesive layer and is rolled to obtain a semi-finished product; the thickness of the dry glue is 1.5 mu m, and the peeling force is 800-1000gf/25 mm;
2. the second procedure is that a high storage modulus acrylic acid glue layer is directly coated on the non-binding surface of the ultrathin polyester PET of the semi-finished product by a micro-concave coating process, and then dried by an oven at a linear speed of 15 m/min; then adhering the coating surface of the light release film to an acrylic adhesive layer, and rolling to obtain a finished product; the thickness of the dry glue is 1.5 μm, and the peeling force is 800-1000gf/25 mm;
3. and (5) curing the finished product for 72H at the temperature of 45 ℃ to finish the processing of the finished product.
Comparative example 1
The comparative example comprises a light release layer, an acrylic acid glue layer, an ultrathin base material layer, an acrylic acid glue layer and a heavy release layer from top to bottom in sequence; wherein the acrylic adhesive layer comprises the following components:
acrylic acid Polymer: 100 parts of (a) a water-soluble polymer,
curing agent: 1.2 parts of (A) a solvent,
tackifying resin: 12 parts of (a) to (b),
ethyl acetate: 440 parts of a mixture;
wherein:
the acrylic polymer composition was as follows:
ethyl acrylate: 60 parts of (a) to (b),
vinyl acetate: 10 parts of (by weight) of (B),
beta-acryloxypropionic acid: 4, preparing 4 parts of the mixture,
hydroxyethyl acrylate: 1.3 parts of (A) a stabilizer,
ethyl acetate: 50 parts of (a) a mixture of (b),
azobisisobutyronitrile: 0.5 part of (by weight),
rosin modified resin: 28 parts.
Comparative example 2
The comparative example comprises a light release layer, an acrylic acid glue layer, an ultrathin base material layer, an acrylic acid glue layer and a heavy release layer from top to bottom in sequence; wherein the acrylic adhesive layer comprises the following components:
acrylic acid polymer: 100 parts of (a) a water-soluble polymer,
curing agent: 0.1 part by weight of a reaction kettle,
tackifying resin: 12 parts of (a) to (b),
ethyl acetate: 440 parts of a mixture;
wherein:
the acrylic polymer composition was as follows:
ethyl acrylate: 60 parts of (a) to (b),
vinyl acetate: 10 parts of (a) to (b),
beta-acryloxypropionic acid: 4, preparing 4 parts of the mixture,
ethyl acetate: 50 parts of (a) a mixture of (b),
azobisisobutyronitrile: 0.5 part by weight of a reaction kettle,
rosin modified resin: 28 parts.
Comparative examples 1 and 2 were prepared in the same manner as in examples.
The properties of the ultra-thin double-sided tapes prepared in the above examples 1 to 4 and comparative examples 1 to 2 are shown in table 1:
TABLE 1
The initial adhesion is tested according to the regulations of the national standard GB/T4852; the retention is tested according to the regulations of the national standard GB/T4851; the 180-degree peel strength is tested according to the specification of national standard GB/T2792-2014; the uncovering force is tested according to the specification of the national standard GB/T2792-2014; the storage modulus can be measured by a dynamic thermomechanical analysis method DMA (direct memory access), and the instrument model is as follows: advanced rotary rheometer TAQ 800.
As shown in the evaluation results of Table 1, the ultrathin double-sided adhesive tape of the embodiment has high energy storage modulus and does not fall off under the condition of high temperature; therefore, the adhesive tape has excellent resilience after being pressed, ensures the effective thickness of the magnetic conductive sheet, further continuously improves the supportable charging power, and further realizes the design of a high-power magnetic sheet.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. An ultra-thin sticky tape for wireless charging nanocrystalline is characterized in that: including the substrate layer, set up in the first glue film and the second glue film of substrate layer both sides to and be located the light of first glue film and second glue film outside respectively from the type layer and heavily from the type layer, the thickness of first glue film and second glue film is 1 ~ 1.5 mu m, first glue film and second glue film are high storage modulus acrylic acid glue film, high storage modulus acrylic acid glue film is dried by the glue solution coating and is obtained, and this glue solution comprises following weight part component:
wherein:
the high storage modulus acrylic polymer comprises the following components:
2. the ultra-thin adhesive tape for wireless charging nanocrystals, as claimed in claim 1, wherein: the soft monomer is one or more of ethyl acrylate, butyl acrylate, isooctyl acrylate, n-propyl acrylate and isobutyl acrylate;
the hard monomer is one or more of methyl acrylate, methyl methacrylate, vinyl acetate, isobornyl methacrylate, styrene, acrylamide, N-hydroxymethyl acrylamide and acrylic acid.
3. The ultra-thin adhesive tape for wireless charging nanocrystals, as claimed in claim 1, wherein: the functional monomer is one or more of hydroxyethyl acrylate, acrylic acid, methacrylic acid, hydroxypropyl acrylate and acrylamide.
4. The ultra-thin adhesive tape for wireless charging nanocrystals, as claimed in claim 1, wherein: the special monomer is one or more of beta-acryloxypropionic acid, 2- (2-ethoxyethoxy) ethyl acrylate, isodecyl acrylate, cycloaliphatic acrylate and hydroxyethyl methacrylate phosphate.
5. The ultra-thin adhesive tape for wireless charging nanocrystals, as claimed in claim 1, wherein: the initiator is one or two of azodiisobutyronitrile or dibenzoyl peroxide.
6. The ultrathin adhesive tape for wireless charging of nanocrystals, as claimed in claim 1, wherein: the tackifying resin is one or more of rosin modified resin, terpene modified resin, carbon nine petroleum resin and carbon five petroleum resin.
7. The ultra-thin adhesive tape for wireless charging nanocrystals, as claimed in claim 1, wherein: the material of the base material layer is polyester PET, and the thickness of the base material layer is 1.5-1.7 mu m.
8. A preparation method of the ultrathin adhesive tape for the wireless charging nanocrystalline, as claimed in any one of claims 1 to 7, is characterized in that: the method comprises the following steps:
s1, coating the high-storage-modulus acrylic adhesive layer on the coating surface of the heavy release film by adopting a dimple coating process, and drying the coated acrylic adhesive layer in an oven at a linear speed of 15-20m/min to obtain a second adhesive layer; then, the substrate layer is attached to the second adhesive layer and is rolled to obtain a semi-finished product; the thickness of the second adhesive layer is 1.0-1.5 μm, and the peeling force is 800-1000gf/25 mm;
s2, directly coating a high-storage-modulus acrylic adhesive layer on the non-bonded surface of the semi-finished substrate layer by adopting a micro-concave coating process, and drying the coated acrylic adhesive layer in an oven at a linear speed of 15-20m/min to obtain a first adhesive layer; then, attaching the light release film to the first adhesive layer, and rolling to obtain a finished product; the thickness of the first adhesive layer is 1.0-1.5 μm, and the peeling force is 800-1000gf/25 mm;
(3) and (5) curing the finished product for 72H at the temperature of 45 ℃ to finish the processing of the finished product, thereby obtaining the ultrathin adhesive tape.
9. The method for preparing the ultra-thin adhesive tape for wireless charging nanocrystals, as claimed in claim 8, wherein: the preparation method of the high-storage-modulus acrylic adhesive layer glue comprises the following steps:
s01, preparing a high storage modulus acrylic polymer;
s02, adding the prepared high storage modulus acrylic polymer into a mixing kettle, stirring at the rotation speed of 100-300 rpm, gradually adding 0.1-1.0 part of curing agent, 10-15 parts of tackifying resin and 420-450 parts of ethyl acetate at room temperature, stirring for 0.5h, and discharging to obtain the high storage modulus acrylic adhesive layer glue.
10. The method for preparing the ultra-thin adhesive tape for wireless charging nanocrystals, as claimed in claim 9, wherein: the preparation method of the acrylic polymer with high storage modulus in the step S01 is as follows:
sequentially adding 30-90 parts of soft monomer, 9-60 parts of hard monomer, 1-5 parts of functional monomer, 1-10 parts of special monomer and part of solvent ethyl acetate at the bottom of a reaction tank provided with a condenser, a stirring paddle and a thermometer, uniformly mixing, stirring at a stirring speed of 80-100R/min and 30min under the protection of nitrogen (the gas flow is 0.2ML/min), heating to 65-68 ℃, starting adding 40% of initiator solution, initiating, and timing for 2-3 h; adding 30 percent of initiator solution for the second time, heating to 75-80 ℃, and reacting for 3 hours; adding 30 percent of initiator solution for the third time, heating to 75-82 ℃, carrying out reflux reaction for 3h, cooling to 50 ℃, and discharging to obtain the acrylic polymer with high storage modulus.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152077A (en) * | 2014-08-13 | 2014-11-19 | 隆昌羽玺新材料科技有限公司 | Ultra-thin polyester double-sided adhesive tape, glue thereof, and preparation method thereof |
| CN110819273A (en) * | 2019-12-03 | 2020-02-21 | 苏州凡赛特材料科技有限公司 | Thin-coating high-viscosity pressure-sensitive adhesive and pressure-sensitive adhesive tape |
| CN111087524A (en) * | 2019-12-17 | 2020-05-01 | 苏州赛伍应用技术股份有限公司 | Polyacrylate, pressure-sensitive adhesive tape, soft magnetic shielding sheet and preparation method thereof |
| CN111087950A (en) * | 2019-12-23 | 2020-05-01 | 崴思新材料泰州有限公司 | Adhesive, double-sided tape applying adhesive and preparation method of double-sided tape |
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2021
- 2021-12-09 CN CN202111499979.8A patent/CN114479694A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152077A (en) * | 2014-08-13 | 2014-11-19 | 隆昌羽玺新材料科技有限公司 | Ultra-thin polyester double-sided adhesive tape, glue thereof, and preparation method thereof |
| CN110819273A (en) * | 2019-12-03 | 2020-02-21 | 苏州凡赛特材料科技有限公司 | Thin-coating high-viscosity pressure-sensitive adhesive and pressure-sensitive adhesive tape |
| CN111087524A (en) * | 2019-12-17 | 2020-05-01 | 苏州赛伍应用技术股份有限公司 | Polyacrylate, pressure-sensitive adhesive tape, soft magnetic shielding sheet and preparation method thereof |
| CN111087950A (en) * | 2019-12-23 | 2020-05-01 | 崴思新材料泰州有限公司 | Adhesive, double-sided tape applying adhesive and preparation method of double-sided tape |
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Application publication date: 20220513 |