CN116855187A - Supporting protective film adhesive tape and preparation method and application thereof - Google Patents
Supporting protective film adhesive tape and preparation method and application thereof Download PDFInfo
- Publication number
- CN116855187A CN116855187A CN202310851023.2A CN202310851023A CN116855187A CN 116855187 A CN116855187 A CN 116855187A CN 202310851023 A CN202310851023 A CN 202310851023A CN 116855187 A CN116855187 A CN 116855187A
- Authority
- CN
- China
- Prior art keywords
- protective film
- film adhesive
- parts
- adhesive
- supporting
- 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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- 230000001681 protective effect Effects 0.000 title claims abstract description 117
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 239000010410 layer Substances 0.000 claims abstract description 99
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 77
- 239000012790 adhesive layer Substances 0.000 claims abstract description 68
- 239000000758 substrate Substances 0.000 claims abstract description 68
- 239000003522 acrylic cement Substances 0.000 claims abstract description 60
- 239000000853 adhesive Substances 0.000 claims abstract description 55
- 230000001070 adhesive effect Effects 0.000 claims abstract description 55
- 230000003287 optical effect Effects 0.000 claims abstract description 45
- 239000002904 solvent Substances 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 21
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000002216 antistatic agent Substances 0.000 claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims abstract description 11
- 229920006243 acrylic copolymer Polymers 0.000 claims abstract description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 48
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 36
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 24
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 16
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 16
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 16
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 16
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- 230000009477 glass transition Effects 0.000 claims description 12
- 229920002799 BoPET Polymers 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 claims description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 8
- 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 8
- 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 8
- DNTMQTKDNSEIFO-UHFFFAOYSA-N n-(hydroxymethyl)-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NCO DNTMQTKDNSEIFO-UHFFFAOYSA-N 0.000 claims description 8
- 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 8
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 7
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 7
- 150000003505 terpenes Chemical class 0.000 claims description 7
- 235000007586 terpenes Nutrition 0.000 claims description 7
- 238000002834 transmittance Methods 0.000 claims description 7
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- JJLKTTCRRLHVGL-UHFFFAOYSA-L [acetyloxy(dibutyl)stannyl] acetate Chemical compound CC([O-])=O.CC([O-])=O.CCCC[Sn+2]CCCC JJLKTTCRRLHVGL-UHFFFAOYSA-L 0.000 claims description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 3
- XQBCVRSTVUHIGH-UHFFFAOYSA-L [dodecanoyloxy(dioctyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCCCCCCC XQBCVRSTVUHIGH-UHFFFAOYSA-L 0.000 claims description 3
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 3
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 claims description 3
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- VZXPHDGHQXLXJC-UHFFFAOYSA-N 1,6-diisocyanato-5,6-dimethylheptane Chemical compound O=C=NC(C)(C)C(C)CCCCN=C=O VZXPHDGHQXLXJC-UHFFFAOYSA-N 0.000 claims description 2
- CPDAIPKBTBUVDV-UHFFFAOYSA-N 12-ethoxydodecan-1-amine Chemical compound CCOCCCCCCCCCCCCN CPDAIPKBTBUVDV-UHFFFAOYSA-N 0.000 claims description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 2
- AHIPJALLQVEEQF-UHFFFAOYSA-N 4-(oxiran-2-ylmethoxy)-n,n-bis(oxiran-2-ylmethyl)aniline Chemical compound C1OC1COC(C=C1)=CC=C1N(CC1OC1)CC1CO1 AHIPJALLQVEEQF-UHFFFAOYSA-N 0.000 claims description 2
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 claims description 2
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
- IDNUEBSJWINEMI-UHFFFAOYSA-N ethyl nitrate Chemical compound CCO[N+]([O-])=O IDNUEBSJWINEMI-UHFFFAOYSA-N 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000003784 tall oil Substances 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 66
- 238000005520 cutting process Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 17
- 239000010408 film Substances 0.000 description 180
- 238000006243 chemical reaction Methods 0.000 description 24
- 239000003999 initiator Substances 0.000 description 18
- 238000003756 stirring Methods 0.000 description 18
- 239000000203 mixture Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 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 description 7
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 239000004342 Benzoyl peroxide Substances 0.000 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 description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- 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
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- 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
-
- 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
- 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
- C09J2301/122—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 only on one side of the carrier, e.g. single-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
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier 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
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesive Tapes (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a supporting protective film adhesive tape, a preparation method and application thereof, wherein the supporting protective film adhesive tape comprises a PET (polyethylene terephthalate) substrate layer, a protective film adhesive layer, an optical PET substrate layer, a supporting film adhesive layer and a release material layer which are sequentially laminated; the preparation raw materials of the protective film adhesive layer comprise acrylic adhesive A, curing agent A, catalyst, curing retarder, antistatic agent and solvent A; the preparation raw materials of the support film adhesive layer comprise acrylic adhesive B, curing agent B, tackifying resin and solvent B; the acrylic adhesive B comprises an acrylic copolymer containing a rigid structure. The protective film supporting adhesive tape can realize the functions of protection and support at the same time, no bubble appears in die cutting at high temperature, the effect of high Wen Moqie is good, the adhesive force stability of the protective film adhesive layer is high, and the protective film adhesive layer climbs at high temperature and low.
Description
Technical Field
The invention belongs to the technical field of adhesive materials, and particularly relates to a supporting protective film adhesive tape, and a preparation method and application thereof.
Background
With rapid development of display technology, personal wearing, folding screen mobile phones, 3D large-radian screen mobile phones and other electronic products, OLED display screens are increasingly widely used. OLED display screen has certain compliance to there is risk such as pollution, damage, cracked in transportation, equipment in-process, needs the sticky tape laminating to play protection support fixed effect.
CN114621697a discloses a support film for a foldable OLED display device and a method of manufacturing the same, the support film for a foldable OLED display device comprising: a substrate as a support layer for supporting the film; an antistatic coating layer which is compounded on one surface of the base material; the pressure-sensitive adhesive layer is compounded on the other surface of the base material; and/or a release film, which is compounded on the pressure-sensitive adhesive layer. The supporting film for the foldable OLED display device is always tightly adhered to an object to be adhered in the bending process, and after the folding process is finished, the supporting film with good bending resistance can be relied on to quickly release stress and restore to the original state, so that the problems of poor bending resistance, easiness in debonding and low service life are solved.
CN110452632a discloses a method for producing a lower support film for an OLED display screen and a product thereof, the support film comprising: the anti-static coating comprises a substrate, a pressure-sensitive adhesive layer and a release film, wherein the two sides of the release film are coated with the anti-static layer, the substrate is a PET, PI, PEN, COP, PPS, PC optical film with the thickness of 50-100 mu m and a smooth and clean surface, the light transmittance is more than 91%, the haze is less than 1.5%, the anti-static layer is coated on one side of the substrate to obtain the substrate with one side being the anti-static surface, and the pressure-sensitive adhesive layer is coated on the other side of the substrate; the pressure-sensitive adhesive layer is composed of polyurethane or polyacrylic acid adhesive layers, the glass transition temperature is between-80 ℃ and-20 ℃ so as to prevent the supporting film from rebounding, and meanwhile, the pressure-sensitive adhesive layer can be better attached to an object to be attached, so that water vapor invasion is avoided, and a release film of a double-sided antistatic layer is compounded on the pressure-sensitive adhesive layer to obtain a base film; and (3) after curing the base film, compounding a double-sided antistatic protective film on the antistatic surface of the base material. The supporting film provided by the technical scheme has high enough viscosity, can not reduce the viscosity along with the increase of the attaching time, and can effectively support the OLED display screen for a long time.
The above scheme can play a supporting role on the OLED display screen, but in order to realize the protection and the supporting role of the OLED display screen at present, a supporting film is usually required to be attached to the back surface of the OLED display screen, and then the protecting film is attached to the supporting film, so that the preparation process is complex, in addition, the supporting film in the prior art usually comprises a substrate layer, an adhesive layer and a release material layer, bubbles easily appear when the supporting film is Wen Moqie, the adhesion is reduced, the binding force is reduced, and slippage, falling and the like can be caused for a long time; the protective film is stuck on the surface of the substrate layer, the adhesive force of the protective film climbs at high temperature, and the protective film is not easy to separate when being torn off in the production process, so that the production efficiency is affected.
Therefore, there is a need to develop a supporting protective film adhesive tape which does not generate bubbles during die cutting at high temperature, has high adhesive force stability, and can realize supporting and protecting functions.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a supporting protective film adhesive tape, and a preparation method and application thereof. The supporting protective film adhesive tape can realize the functions of protection and support at the same time, no bubble appears in die cutting at high temperature, the adhesive force stability is high, and the adhesive film is high in high temperature and low in climbing.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
in a first aspect, the invention provides a supporting protective film adhesive tape, which comprises a PET (polyethylene terephthalate) substrate layer, a protective film adhesive layer, an optical PET substrate layer, a supporting film adhesive layer and a release material layer which are sequentially laminated;
the preparation raw materials of the protective film adhesive layer comprise acrylic adhesive A, curing agent A, catalyst, curing retarder, antistatic agent and solvent A;
the preparation raw materials of the support film adhesive layer comprise acrylic adhesive B, curing agent B, tackifying resin and solvent B;
the acrylic adhesive B comprises an acrylic copolymer containing a rigid structure.
In the invention, the surface energy of the optical PET substrate layer is higher, one side of the optical PET substrate layer is provided with the supporting film adhesive layer, and the supporting film adhesive layer has high modulus and high hardness; the other side of the optical PET substrate layer is adhered with the PET substrate layer through the protective film adhesive layer. The PET substrate layer and the protective film adhesive layer play a role in protection, the optical PET substrate layer and the support film adhesive layer play a role in support, and the prepared support protective film adhesive tape has double roles in protection and support; the support protection film adhesive tape can realize the integrated lamination of the protection film and the support film, reduce the scratch to the OLED display screen, reduce the production time and reduce the cost.
In the invention, the modulus of the supporting film adhesive layer has a great influence on the appearance of the die-cut piece, if the modulus of the supporting film adhesive is low, the prepared supporting film adhesive layer is relatively soft, and bubbles are easy to appear when the supporting film adhesive layer is high Wen Moqie, so that the adhesion of the supporting protective film adhesive tape is reduced, the binding force is reduced, and the problems of slipping, falling and the like appear when the supporting film adhesive layer is stuck for a long time; the acrylic adhesive B comprises the acrylic copolymer with the rigid structure, the acrylic copolymer with the rigid structure has high modulus and high hardness, the prepared supporting film adhesive layer has high modulus, no air holes are formed when the supporting film adhesive layer is high Wen Moqie, and the die-cut piece has good appearance effect. The adhesive layer of the protective film has stable adhesive force and low climbing at high temperature.
In the present invention, the high temperature means 70-150 ℃.
Preferably, the acrylic adhesive A is obtained by polymerizing any one or at least two of methyl acrylate, methyl methacrylate, ethyl acrylate, 2-ethylhexyl acrylate, N-methylolmethacrylamide, butyl acrylate, isooctyl acrylate or N-butyl acrylate;
preferably, the acrylic adhesive A is obtained by copolymerizing any one or at least two of methyl acrylate, methyl methacrylate, ethyl acrylate, 2-ethylhexyl acrylate, N-methylolmethacrylamide, butyl acrylate, isooctyl acrylate or N-butyl acrylate with acrylonitrile and/or styrene;
preferably, the weight average molecular weight of the acrylic adhesive A is 40 ten thousand to 60 ten thousand, for example 40 ten thousand, 42 ten thousand, 45 ten thousand, 48 ten thousand, 50 ten thousand, 52 ten thousand, 55 ten thousand, 58 ten thousand or 60 ten thousand, etc.
According to the invention, the acrylic adhesive A has a large weight average molecular weight, and can improve the overall crosslinking density of the adhesive layer, so that the overall strength and modulus of the adhesive layer are improved, the adhesive force stability of the adhesive layer is improved, and high-temperature low-climbing is realized.
Preferably, the catalyst comprises any one or a combination of at least two of dibutyltin dilaurate, dioctyltin dilaurate or dibutyltin acetate.
Preferably, the cure retarder comprises acetylacetone.
Preferably, the antistatic agent comprises any one or a combination of at least two of lithium bistrifluoromethylsulfonylimide, stearylamine, propyldimethyl mono-light ethyl nitrate, sodium alkyl sulfonate, ethoxylaurylamine or glycerol monostearate.
Preferably, the preparation raw materials of the protective film adhesive layer comprise the following components in parts by weight: 100 parts of acrylic adhesive A, 0.1-3 parts (e.g., 0.1 part, 0.2 part, 0.5 part, 0.7 part, 1 part, 1.2 part, 1.5 part, 1.8 part, 2 parts, 2.2 parts, 2.5 parts, 2.8 parts, or 3 parts, etc.), 0.1-0.5 part (e.g., 0.1 part, 0.15 part, 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part, or 0.5 part, etc.), 1-5 parts (e.g., 1 part, 1.5 part, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, or 5 parts, etc.), 0.1-1 part (e.g., 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, or 0.9 part, or 0.25 part, 0.3 part, 0.35 part, 0.45 part, or 0.5 part, etc.), 1-5 parts (e.g., 1.5 parts, 2 parts, 2.5 parts, 3 parts, 4.5 parts, 4 parts, 5 parts, etc.), 0.5 parts, 0.5 part, 5, 40, 30 parts, 60, or 5 parts, etc.), and the solvent A.
Preferably, the rigid structure comprises an aromatic ring structure and/or a cyano group, more preferably a benzene ring structure.
Preferably, the acrylate copolymer containing a rigid structure includes an acrylate copolymer containing a rigid structure containing a methyl group and/or a carboxyl group.
Preferably, the weight average molecular weight of the acrylic adhesive B is 60 ten thousand to 90 ten thousand, for example 60 ten thousand, 65 ten thousand, 70 ten thousand, 72 ten thousand, 75 ten thousand, 78 ten thousand, 80 ten thousand, 82 ten thousand, 85 ten thousand, 88 ten thousand or 90 ten thousand, etc.
Preferably, the acrylic adhesive B comprises a copolymer of an acrylic monomer and styrene and/or acrylonitrile.
Preferably, the acrylate monomer comprises any one or a combination of at least two of methyl acrylate, methyl methacrylate, ethyl acrylate, butyl acrylate or isooctyl acrylate.
Preferably, the acrylic adhesive B is an acrylic adhesive with high glass transition temperature.
Preferably, the glass transition temperature of the high glass transition temperature acrylic adhesive is-40 to-5 ℃, such as-40 ℃, -35 ℃, -30 ℃, -25 ℃, -20 ℃, -15 ℃, -10 ℃ or-5 ℃ and the like.
In the invention, the acrylic adhesive is the acrylic adhesive with high glass transition temperature, and the formed adhesive layer material has high hardness, good wear resistance and good temperature resistance. If the glass transition temperature is too low, the glue material is soft and poor in temperature resistance, and at a high Wen Moqie, glue overflow and bubbles are generated.
Preferably, the tackifying resin comprises any one or a combination of at least two of a hydrogenated terpene resin, gum rosin, tall oil rosin, wood rosin, rosin derivatives, alpha-terpene resin, beta-terpene resin, or terpene phenolic resin.
Preferably, the curing agent a and the curing agent B each independently include an isocyanate-based curing agent and/or an epoxy-based curing agent.
Preferably, the isocyanate curing agent comprises any one or a combination of at least two of hexamethylene diisocyanate, trimethylhexamethylene diisocyanate, hexamethylene diisocyanate biuret, isophorone diisocyanate, diphenylmethane diisocyanate or dicyclohexylmethane diisocyanate.
Preferably, the epoxy curing agent comprises any one or a combination of at least two of triglycidyl para-aminophenol, m-xylylenediamine tetraglycidyl amine, 4- (diglycidyl amino) phenyl glycidyl ether or diglycidyl hexane.
Preferably, the solvent a and the solvent B each independently include any one or a combination of at least two of ethyl acetate, acetone, methyl ethyl ketone, ethanol, methanol, toluene, or tetrahydrofuran.
Preferably, the preparation raw materials of the support film adhesive layer comprise the following components in parts by weight: 100 parts of acrylic adhesive B, 0.1-3 parts (for example, 0.1 part, 0.3 part, 0.5 part, 0.8 part, 1 part, 1.3 part, 1.5 part, 1.8 part, 2 parts, 2.5 parts, 2.8 parts or 3 parts, etc.), 0.1-6 parts (for example, 0.5 part, 1 part, 1.5 part, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts or 6 parts, etc.), and 20-60 parts (for example, 22 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts or 58 parts, etc.) of solvent B.
Preferably, the PET substrate layer comprises a PET biaxially oriented film.
Preferably, the optical PET substrate layer includes an optical PET film.
Preferably, the optical PET film has a light transmittance >92% (e.g., 92.5%, 93.5%, 94%, 94.5%, 95%, 96%, 97%, 98%, or 99%, etc.) and a haze <2% (e.g., 0.1%, 0.3%, 0.5%, 0.8%, 1%, 1.3%, 1.5%, 1.7%, 1.8%, or 1.9%, etc.).
Preferably, the release layer comprises a PET release film.
Preferably, the thickness of the PET substrate layer is 20 to 50 μm, for example 20 μm, 22 μm, 25 μm, 30 μm, 35 μm, 40 μm, 42 μm, 45 μm or 50 μm, etc.
Preferably, the thickness of the protective film adhesive layer is 8 to 40 μm, for example 8 μm, 10 μm, 12 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm or the like.
Preferably, the thickness of the optical PET substrate layer is 40 to 120 μm, for example 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm or 120 μm, etc.
Preferably, the thickness of the support film adhesive layer is 8 to 40 μm, for example 8 μm, 10 μm, 12 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm or 40 μm, etc.
Preferably, the thickness of the release layer is 40 to 60 μm, for example 40 μm, 42 μm, 45 μm, 48 μm, 50 μm, 52 μm, 55 μm, 58 μm or 60 μm, etc.
Preferably, the thickness of the support protective film tape is 116 to 310 μm, for example, 116 μm, 120 μm, 125 μm, 130 μm, 150 μm, 180 μm, 200 μm, 250 μm, 280 μm, 310 μm, or the like.
In a second aspect, the present invention provides a method for preparing the supporting protective film adhesive tape according to the first aspect, the method comprising the steps of:
(1) Mixing an acrylic adhesive A, a curing agent A, a catalyst, a curing retarder, an antistatic agent and a solvent A to prepare a protective film adhesive; and mixing the acrylic adhesive B, the curing agent B, the tackifying resin and the solvent B to prepare the support film adhesive.
(2) And (3) coating the support film adhesive prepared in the step (1) on one side of the optical PET substrate layer, attaching the support film adhesive to the release material layer, and coating the protective film adhesive prepared in the step (1) on one side of the PET substrate layer, attaching the protective film adhesive to the other side of the optical PET substrate layer, so as to prepare the support protective film adhesive tape.
In a third aspect, the present invention provides the use of a supporting protective film tape as described in the first aspect for protecting and supporting a plastic organic screen.
Compared with the prior art, the invention has the following beneficial effects:
the supporting protective film adhesive tape comprises a PET substrate layer, a protective film adhesive layer, an optical PET substrate layer, a supporting film adhesive layer and a release material layer which are sequentially laminated; the supporting protective film adhesive tape has the functions of protection and support, realizes the integrated lamination of the protective film and the supporting film, reduces scratch, shortens production time and reduces cost; the basic physical properties (including stripping force, holding force, initial adhesion, light transmittance, haze and the like) of the supporting protective film adhesive tape are equivalent to those of the traditional adhesive tape, and in addition, the supporting protective film adhesive tape can solve the problem that in the prior art, an air hole appears in a supporting film adhesive layer of a supporting film when the supporting film adhesive layer is as high as Wen Moqie, and the adhesive force of the protective film adhesive layer of the protective film climbs at high temperature; the supporting protective film adhesive tape is attached to the back of the plastic organic screen panel, and can play a role in reinforcing the panel and prevent the bending phenomenon of the panel rolling.
The interlayer peeling force of the supporting protective film adhesive tape is 2.1-2.5gf/inch at room temperature, 3.2-4.0gf/inch at 70 ℃, the peeling force of pasting for 20min at room temperature is 720-1300gf/inch, the peeling force of pasting for 72h at room temperature is 730-1350gf/inch, the adhesive force stability is high, the high temperature is low, the high Wen Moqie effect is good, and preferably, no bubble exists at the edge of the high Wen Moqie, and the die cutting effect is good.
Drawings
Fig. 1 is a schematic structural view of a supporting protective film tape provided in embodiment 1;
wherein, 1-PET substrate layer; 2-a protective film adhesive layer; 3-an optical PET substrate layer; 4-a support film adhesive layer; 5-release profile layer;
FIG. 2 is a cross-sectional view of a 120℃die cut of the optical PET substrate layer and the support film adhesive layer in the support protective film tape provided in example 1;
wherein the 3-optical PET substrate layer; 4-a support film adhesive layer;
fig. 3 is a 120 c die-cut cross-sectional view of the support film tape of the support protective film tapes provided in comparative example 2.
Detailed Description
The technical scheme of the invention is further described by the following specific embodiments. It will be apparent to those skilled in the art that the examples are merely to aid in understanding the invention and are not to be construed as a specific limitation thereof.
The "parts" mentioned below are all "parts by mass".
Example 1
The embodiment provides a supporting protective film adhesive tape and a preparation method thereof, wherein the supporting protective film adhesive tape is shown in fig. 1 and comprises a PET (polyethylene terephthalate) substrate layer 1, a protective film adhesive layer 2, an optical PET substrate layer 3, a supporting film adhesive layer 4 and a release material layer 5 which are sequentially laminated;
the PET substrate layer is a PET biaxially oriented film with the thickness of 37 mu m;
the thickness of the protective film adhesive layer is 13 mu m;
the optical PET substrate layer is an optical PET film, the light transmittance is 93%, the haze is 1%, and the thickness is 75 mu m;
the thickness of the support film adhesive layer is 13 mu m;
the release material layer is a PET release film with the thickness of 50 mu m;
the thickness of the supporting protective film adhesive tape is 188 μm.
The preparation method of the supporting protective film adhesive tape comprises the following steps:
(1) Preparing a protective film adhesive:
90 parts of 2-ethylhexyl acrylate, 25 parts of butyl acrylate and 15 parts of ethyl acrylate are added into a reaction kettle, 50 parts of solvent (ethyl acetate) and initiator (azodiisobutyronitrile) are added, the mass of the initiator is 1% of the total mass of the 2-ethylhexyl acrylate, the butyl acrylate, the ethyl acrylate and the N-methylolmethacrylamide, the mixture is stirred for 30min at 65 ℃, and finally 5 parts of N-methylolmethacrylamide is added into the reaction kettle, heated and stirred at 120 ℃, cooled and poured out after reacting for 5h, and the acrylic ester adhesive A is obtained.
The weight average molecular weight of the acrylic adhesive A is 50 ten thousand.
Mixing 20 parts of solvent A (ethyl acetate) with 100 parts of the prepared acrylic adhesive A, adding 1 part of curing agent A (hexamethylene diisocyanate), stirring for 15min, adding 1 part of curing retarder (acetylacetone), stirring for 15min, adding 0.1 part of catalyst (dibutyltin dilaurate), stirring for 10min, and finally adding 0.1 part of antistatic agent (lithium bistrifluoromethylsulfonimide), stirring for 0.5 h to obtain the protective film adhesive.
(2) Preparing a support film adhesive:
180 parts of butyl acrylate, 10 parts of methyl methacrylate, 5 parts of ethyl acrylate and 70 parts of styrene are added into a reaction kettle, then 100 parts of solvent (ethyl acetate) is added and stirred uniformly, finally, an initiator (azodiisobutyronitrile) is added into the reaction kettle, the mass of the initiator is 1% of the total mass of butyl acrylate, methyl methacrylate, ethyl acrylate and styrene, the mixture is heated and stirred at 65 ℃, and the mixture is cooled and poured out after the reaction is carried out for 10 hours, so that the acrylic ester adhesive B is obtained.
The weight average molecular weight of the acrylic adhesive B is 70 ten thousand, and the glass transition temperature is-16 ℃.
40 parts of solvent B (ethyl acetate) and 100 parts of the prepared acrylic adhesive B are mixed, then 0.1 part of curing agent B (isophorone diisocyanate) is added and stirred for 15min, then 0.1 part of tackifying resin (hydrogenated terpene resin with weight average molecular weight of 1000) and 20 parts of solvent B (ethyl acetate) are added and mixed and stirred for 30min, and the support film adhesive is obtained.
(3) Preparing a supporting protective film adhesive tape: and (3) coating the supporting film adhesive prepared in the step (2) on one side of the optical PET substrate layer to be attached to the release material layer, and coating the protecting film adhesive prepared in the step (1) on one side of the PET substrate layer to be attached to the other side of the optical PET substrate layer to obtain the PET substrate layer, the protecting film adhesive layer, the optical PET substrate layer, the supporting film adhesive layer and the release material layer which are sequentially laminated, so as to obtain the supporting protecting film adhesive tape.
Example 2
The embodiment provides a supporting protective film adhesive tape and a preparation method thereof, wherein the supporting protective film adhesive tape comprises a PET (polyethylene terephthalate) substrate layer, a protective film adhesive layer, an optical PET substrate layer, a supporting film adhesive layer and a release material layer which are sequentially laminated;
the PET substrate layer is a PET biaxially oriented film with the thickness of 50 mu m;
the thickness of the protective film adhesive layer is 20 mu m;
the optical PET substrate layer is an optical PET film, the light transmittance is 95%, the haze is 0.8%, and the thickness is 100 mu m;
the thickness of the support film adhesive layer is 40 mu m;
the release material layer is a PET release film with the thickness of 50 mu m;
the thickness of the supporting protective film adhesive tape is 260 μm.
The preparation method of the supporting protective film adhesive tape comprises the following steps:
(1) Preparing a protective film adhesive:
adding 100 parts of 2-ethylhexyl acrylate, 15 parts of butyl acrylate and 37 parts of styrene into a reaction kettle, then adding 50 parts of solvent (ethyl acetate) and initiator (azodiisobutyronitrile), wherein the mass of the initiator is 1% of the total mass of the 2-ethylhexyl acrylate, the butyl acrylate, the N-methylolmethacrylamide and the styrene, stirring for 30min at 65 ℃, finally adding 2 parts of the N-methylolmethacrylamide into the reaction kettle, heating and stirring at 120 ℃, reacting for 5h, cooling and pouring out to obtain the acrylic ester adhesive A.
The weight average molecular weight of the acrylic adhesive A is 40 ten thousand.
Mixing 20 parts of solvent A (acetone) with 100 parts of the prepared acrylic adhesive A, adding 0.2 part of curing agent A (toluene diisocyanate), stirring for 15min, adding 3 parts of curing retarder (acetylacetone), stirring for 15min, adding 0.1 part of catalyst (dioctyltin dilaurate), stirring for 10min, finally adding 0.5 part of antistatic agent (stearin amine) and 40 parts of solvent A, and stirring for 0.5 h to obtain the protective film adhesive.
(2) Preparing a support film adhesive:
185 parts of butyl acrylate, 12 parts of methyl methacrylate, 4 parts of isooctyl acrylate and 65 parts of styrene are added into a reaction kettle, then 100 parts of solvent (ethyl acetate) is added and stirred uniformly, finally, an initiator (benzoyl peroxide) is added into the reaction kettle, the mass of the initiator is 1% of the total mass of butyl acrylate, methyl methacrylate, isooctyl acrylate and styrene, the mixture is heated and stirred at 65 ℃, and after the reaction is carried out for 10 hours, the temperature is reduced, and the acrylate adhesive B is obtained.
The weight average molecular weight of the acrylic adhesive B is 60 ten thousand, and the glass transition temperature is-12 ℃.
Mixing 40 parts of solvent B (acetone) with 100 parts of the prepared acrylic adhesive B, adding 0.8 part of curing agent B (toluene diisocyanate), stirring for 15min, adding 4 parts of tackifying resin (alpha-terpene resin with weight average molecular weight of 2000), mixing and stirring for 30min to obtain the support film adhesive.
(3) Preparing a supporting protective film adhesive tape: and (3) coating the supporting film adhesive prepared in the step (2) on one side of the optical PET substrate layer to be attached to the release material layer, and coating the protecting film adhesive prepared in the step (1) on one side of the PET substrate layer to be attached to the other side of the optical PET substrate layer to obtain the PET substrate layer, the protecting film adhesive layer, the optical PET substrate layer, the supporting film adhesive layer and the release material layer which are sequentially laminated, so as to obtain the supporting protecting film adhesive tape.
Example 3
The embodiment provides a supporting protective film adhesive tape and a preparation method thereof, wherein the supporting protective film adhesive tape comprises a PET (polyethylene terephthalate) substrate layer, a protective film adhesive layer, an optical PET substrate layer, a supporting film adhesive layer and a release material layer which are sequentially laminated;
the PET substrate layer is a PET biaxially oriented film with the thickness of 20 mu m;
the thickness of the protective film adhesive layer is 8 mu m;
the optical PET substrate layer is an optical PET film, the light transmittance is 96%, the haze is 0.5%, and the thickness is 40 mu m;
the thickness of the support film adhesive layer is 8 mu m;
the release material layer is a PET release film with the thickness of 50 mu m;
the thickness of the supporting protective film adhesive tape is 126 μm.
The preparation method of the supporting protective film adhesive tape comprises the following steps:
(1) Preparing a protective film adhesive:
80 parts of 2-ethylhexyl acrylate, 20 parts of methyl acrylate and 45 parts of styrene are added into a reaction kettle, then 50 parts of solvent (ethyl acetate) and initiator (azodiisobutyronitrile) are added, the mass of the initiator is 1% of the total mass of the 2-ethylhexyl acrylate, the methyl acrylate and the styrene, the mixture is stirred at 65 ℃ and cooled and poured out after the reaction is carried out for 5 hours, and the acrylic ester adhesive A is obtained.
The weight average molecular weight of the acrylic adhesive A is 60 ten thousand.
30 parts of solvent A (toluene) and 100 parts of the prepared acrylic adhesive A are mixed, 3 parts of curing agent A (hexamethylene diisocyanate biuret) is added, stirring is carried out for 15min, 5 parts of curing retarder (acetylacetone) is added, stirring is carried out for 15min, 0.1 part of catalyst (dibutyltin acetate) is added, stirring is carried out for 10min, and finally 1 part of antistatic agent (glycerol monostearate) is added, stirring is carried out for 0.5 h, thus obtaining the protective film adhesive.
(2) Preparing a support film adhesive:
190 parts of butyl acrylate, 17 parts of methyl methacrylate and 60 parts of styrene are added into a reaction kettle, then 100 parts of solvent (ethyl acetate) is added and stirred uniformly, finally, an initiator (benzoyl peroxide) is added into the reaction kettle, the mass of the initiator is 1% of the total mass of the butyl acrylate, the methyl methacrylate and the styrene, the mixture is heated and stirred at 65 ℃, and the mixture is cooled and poured out after being reacted for 10 hours, so that the acrylic ester adhesive B is obtained.
The weight average molecular weight of the acrylic adhesive B is 90 ten thousand, and the glass transition temperature is-8 ℃.
50 parts of solvent B (toluene) and 100 parts of the prepared acrylic adhesive B are mixed, 3 parts of curing agent B (hexamethylene diisocyanate biuret) is added, stirring is carried out for 15min, 6 parts of tackifying resin (terpene phenolic resin with weight average molecular weight of 4000) is added, mixing and stirring are carried out for 30min, and the support film adhesive is obtained.
(3) Preparing a supporting protective film adhesive tape: and (3) coating the supporting film adhesive prepared in the step (2) on one side of the optical PET substrate layer to be attached to the release material layer, and coating the protecting film adhesive prepared in the step (1) on one side of the PET substrate layer to be attached to the other side of the optical PET substrate layer to obtain the PET substrate layer, the protecting film adhesive layer, the optical PET substrate layer, the supporting film adhesive layer and the release material layer which are sequentially laminated, so as to obtain the supporting protecting film adhesive tape.
Example 4
The present embodiment provides a supporting protective film adhesive tape and a preparation method thereof, which are different from embodiment 1 only in that the specific preparation method of the acrylic adhesive B is adjusted as follows: 180 parts of butyl acrylate, 10 parts of methyl methacrylate, 5 parts of ethyl acrylate and 70 parts of styrene are added into a reaction kettle, then 100 parts of solvent (ethyl acetate) is added and stirred uniformly, finally, an initiator (azodiisobutyronitrile) is added into the reaction kettle, the mass of the initiator is 0.5 percent of the total mass of butyl acrylate, methyl methacrylate, ethyl acrylate and styrene, the mixture is heated and stirred at 60 ℃, and the mixture is cooled and poured out after the reaction is carried out for 6 hours, so that the acrylic ester adhesive B is obtained.
The weight average molecular weight of the acrylic adhesive B is 50 ten thousand.
Other raw materials, amounts and preparation methods were the same as in example 1.
Example 5
The present embodiment provides a supporting protective film adhesive tape and a preparation method thereof, which are different from embodiment 1 only in that the specific preparation method of the acrylic adhesive B is adjusted as follows: 180 parts of butyl acrylate, 10 parts of methyl methacrylate, 5 parts of ethyl acrylate and 70 parts of styrene are added into a reaction kettle, then 100 parts of solvent (ethyl acetate) is added and stirred uniformly, finally, an initiator (azodiisobutyronitrile) is added into the reaction kettle, the mass of the initiator is 1.5 percent of the total mass of the butyl acrylate, the methyl methacrylate, the ethyl acrylate and the styrene, the mixture is heated and stirred at 70 ℃, and the mixture is cooled and poured out after the reaction is carried out for 14 hours, so that the acrylic ester adhesive B is obtained.
The weight average molecular weight of the acrylic adhesive B is 100 ten thousand.
Other raw materials, amounts and preparation methods were the same as in example 1.
Example 6
The present embodiment provides a supporting protective film adhesive tape and a preparation method thereof, which are different from embodiment 1 only in that the mass portion of the curing agent B is adjusted to 0.05 portion in the process of preparing the supporting film adhesive in step (2), and other raw materials, amounts and preparation methods are the same as those in embodiment 1.
Example 7
The present embodiment provides a supporting protective film adhesive tape and a preparation method thereof, which are different from embodiment 1 only in that the mass portion of the curing agent B is adjusted to 5 portions in the step of preparing the supporting film adhesive in the step (2), and other raw materials, amounts and preparation methods are the same as those in embodiment 1.
Comparative example 1
This comparative example provides a supporting protective film adhesive tape and a method for preparing the same, which is different from example 1 only in that the supporting film adhesive is prepared in step (2):
265 parts of ethyl acrylate is added into a reaction kettle, then 100 parts of solvent (ethyl acetate) is added and stirred uniformly, finally, an initiator (azodiisobutyronitrile) is added into the reaction kettle, the mass of the initiator is 1% of that of the ethyl acrylate, the reaction kettle is heated and stirred at 60 ℃, the temperature is reduced and the acrylate adhesive B is obtained after the reaction for 8 hours.
The weight average molecular weight of the acrylic adhesive B is 70 ten thousand.
40 parts of solvent B (ethyl acetate) and 100 parts of the prepared acrylic adhesive B are mixed, then 0.1 part of curing agent B (isophorone diisocyanate) is added and stirred for 15min, then 0.1 part of tackifying resin (hydrogenated terpene resin with weight average molecular weight of 1000) and 20 parts of solvent B (ethyl acetate) are added and mixed and stirred for 30min, and the support film adhesive is obtained. Other raw materials, amounts and preparation methods were the same as in example 1.
Comparative example 2
The comparative example provides a supporting protective film adhesive tape, and the preparation method of the supporting protective film adhesive tape is as follows:
and (3) sticking the commercial OLED protective film adhesive tape on the non-glued side of the commercial OLED support film adhesive tape to obtain the support protective film adhesive tape.
The supporting protective film tapes provided in examples and comparative examples were subjected to the following performance tests.
(1) Interlayer peel force: the supporting protective film tapes provided in examples 1 to 7 and comparative example 1 were tested for peel force between the PET substrate layer and the optical PET substrate layer at different temperatures, respectively, and the supporting protective film tape provided in comparative example 2 was tested for peel force between the protective film tape and the supporting film tape at different temperatures, according to GB/T2792-2014.
The test conditions are that a protective film is respectively stuck on an optical PET film (without a glue surface) at room temperature, the optical PET film is placed for 20min at room temperature (23+/-2 ℃), and then the optical PET film is placed for one month at room temperature (23+/-2 ℃), and the optical PET film is marked as RT/20min and RT 1M; standing at room temperature (23+ -2deg.C) for 20min, and standing at 40deg.C for one month, denoted RT/20min, 40deg.C 1M; the mixture was left at room temperature (23.+ -. 2 ℃ C.) for 20min, then at room temperature 70 ℃ C. For one month, denoted RT/20min,70 ℃ C. 1M.
(2) Peel force: the supporting protective film adhesive tape was tested for peel force after tearing off the release profile layer according to GB/T2792-2014, respectively, and after pasting for 20min and 72h at room temperature.
(3) Initial adhesion: the test was carried out according to GB 4852-2002.
(4) Modulus of elasticity: and (5) testing by a nanometer indentation instrument, and calculating by using an analysis model Hertz method.
(5) Hardness: the test was performed according to ISO 14577.
(6) Die cutting effect: die cutting is carried out at 120 ℃, and the die cutting effect is +' when more bubbles (50 square centimeters >3 bubbles) are arranged at the edge; if a small number of bubbles (50 square centimeters, 1-3 bubbles) exist at the edge, the die cutting effect is++; if the edge has no bubble, the die cutting effect is++.
The test results are shown in tables 1 and 2.
TABLE 1
TABLE 2
From the test results shown in tables 1 and 2, examples 1 to 7 provided support protective film tapes having an interlayer peel force of 2.1 to 2.5gf/inch at room temperature and 3.2 to 4.0gf/inch at 70℃and having high adhesive force stability and low climb at high temperatures. The supporting protective film adhesive tape has a peeling force of 720-1300gf/inch at room temperature, a peeling force of 730-1350gf/inch at room temperature for 72h, an elastic modulus of 8.92-9.93MPa and a hardness of 48.15-57.10MPa, wherein the interlayer peeling force of the supporting protective film adhesive tape provided in examples 1-3 is 2.2-2.5gf/inch at room temperature, 3.3-4.0gf/inch at 70 ℃, a peeling force of 1200-1300gf/inch at room temperature for 20min, a peeling force of 1260-1350gf/inch at room temperature, no bubbles at the die cutting edge at 120 ℃, and good die cutting effect.
When the weight average molecular weight of the acrylic adhesive B is too small (example 4) as compared with example 1, the peeling force and the initial adhesion are lowered, the hardness and the elastic modulus are lowered, and the die-cutting effect is deteriorated; if the weight average molecular weight of the acrylic adhesive B is too large (example 5), the peeling force and the initial adhesion are lowered, and the die-cutting effect is deteriorated; the performance of the supporting protective film adhesive tape prepared by the acrylic adhesive B with specific weight average molecular weight is better.
When the mass fraction of the curing agent B is too small (example 6), the peeling force and the initial adhesion are lowered, and the die-cutting effect is deteriorated, and when the mass fraction of the curing agent B is too large (example 7), the peeling force and the initial adhesion are lowered, and the die-cutting effect is deteriorated, compared with example 1, and it is proved that the performance of the supporting protective film adhesive tape prepared by using the specific mass fraction of the curing agent B is better.
Compared with the embodiment 1, if the acrylic adhesive B is replaced by the acrylic adhesive (comparative example 1) which has the same quality and does not contain the rigid structure, more bubbles are formed at the die-cut rear edge at 120 ℃, the die-cutting effect is greatly reduced, and the prepared supporting protective film adhesive tape has poor performance.
As can be seen from comparison of example 1 with comparative example 2, the supporting protective film tape provided in example 1 had a smaller increase in interlayer peeling force with an increase in temperature, and the adhesive force was low in rising at high temperature; air bubbles are not easy to occur during high-temperature die cutting, as shown in fig. 2, the air bubbles are not generated after die cutting, the die cutting effect is good, the adhesive layer part of the support protective film adhesive tape provided in comparative example 2 is high Wen Moqie, as shown in fig. 3, the die cutting effect is poor.
The applicant states that the process of the invention is illustrated by the above examples, but the invention is not limited to, i.e. does not mean that the invention must be carried out in dependence on the above process steps. It should be apparent to those skilled in the art that any modification of the present invention, equivalent substitution of selected raw materials, addition of auxiliary components, selection of specific modes, etc. fall within the scope of the present invention and the scope of disclosure.
Claims (10)
1. The supporting protective film adhesive tape is characterized by comprising a PET substrate layer, a protective film adhesive layer, an optical PET substrate layer, a supporting film adhesive layer and a release material layer which are sequentially laminated;
the preparation raw materials of the protective film adhesive layer comprise acrylic adhesive A, curing agent A, catalyst, curing retarder, antistatic agent and solvent A;
the preparation raw materials of the support film adhesive layer comprise acrylic adhesive B, curing agent B, tackifying resin and solvent B;
the acrylic adhesive B comprises an acrylic copolymer containing a rigid structure.
2. The supporting protective film adhesive tape according to claim 1, wherein the acrylic adhesive a is obtained by polymerizing any one or at least two of methyl acrylate, methyl methacrylate, ethyl acrylate, 2-ethylhexyl acrylate, N-methylolmethacrylamide, butyl acrylate, isooctyl acrylate, and N-butyl acrylate;
preferably, the acrylic adhesive A is obtained by copolymerizing any one or at least two of methyl acrylate, methyl methacrylate, ethyl acrylate, 2-ethylhexyl acrylate, N-methylolmethacrylamide, butyl acrylate, isooctyl acrylate or N-butyl acrylate with acrylonitrile and/or styrene;
preferably, the weight average molecular weight of the acrylic adhesive A is 40 ten thousand-60 ten thousand;
preferably, the catalyst comprises any one or a combination of at least two of dibutyltin dilaurate, dioctyltin dilaurate or dibutyltin acetate;
preferably, the cure retarder comprises acetylacetone;
preferably, the antistatic agent comprises any one or a combination of at least two of lithium bistrifluoromethylsulfonylimide, stearylamine, propyldimethyl mono-light ethyl nitrate, sodium alkyl sulfonate, ethoxylaurylamine or glycerol monostearate.
3. The supporting protective film adhesive tape according to claim 1 or 2, wherein the raw materials for preparing the protective film adhesive layer comprise the following components in parts by mass: 100 parts of acrylic adhesive A, 0.1-3 parts of curing agent A, 0.1-0.5 part of catalyst, 1-5 parts of curing retarder, 0.1-1 part of antistatic agent and 20-60 parts of solvent A.
4. A support protective film tape according to any one of claims 1-3, wherein the rigid structure comprises an aromatic ring structure and/or a cyano group, further preferably a benzene ring structure;
preferably, the acrylate copolymer containing a rigid structure comprises an acrylate copolymer containing a rigid structure containing methyl and/or carboxyl groups;
preferably, the weight average molecular weight of the acrylic adhesive B is 60 ten thousand to 90 ten thousand;
preferably, the acrylic adhesive B comprises a copolymer of an acrylic monomer and styrene and/or acrylonitrile;
preferably, the acrylate monomer comprises any one or a combination of at least two of methyl acrylate, methyl methacrylate, ethyl acrylate, butyl acrylate or isooctyl acrylate;
preferably, the acrylic adhesive B is an acrylic adhesive with high glass transition temperature;
preferably, the glass transition temperature of the high glass transition temperature acrylic adhesive is-40 to-5 ℃;
preferably, the tackifying resin comprises any one or a combination of at least two of a hydrogenated terpene resin, gum rosin, tall oil rosin, wood rosin, rosin derivatives, alpha-terpene resin, beta-terpene resin, or terpene phenolic resin;
preferably, the curing agent a and the curing agent B each independently comprise an isocyanate-based curing agent and/or an epoxy-based curing agent;
preferably, the isocyanate curing agent comprises any one or a combination of at least two of hexamethylene diisocyanate, trimethylhexamethylene diisocyanate, hexamethylene diisocyanate biuret, isophorone diisocyanate, diphenylmethane diisocyanate or dicyclohexylmethane diisocyanate;
preferably, the epoxy curing agent comprises any one or a combination of at least two of triglycidyl para-aminophenol, m-xylylenediamine tetraglycidyl amine, 4- (diglycidyl amino) phenyl glycidyl ether or diglycidyl hexane;
preferably, the solvent a and the solvent B each independently include any one or a combination of at least two of ethyl acetate, acetone, methyl ethyl ketone, ethanol, methanol, toluene, or tetrahydrofuran.
5. The supporting protective film adhesive tape according to any one of claims 1 to 4, wherein the raw materials for preparing the supporting film adhesive layer comprise the following components in parts by mass: 100 parts of acrylic adhesive B, 0.1-3 parts of curing agent B, 0.1-6 parts of tackifying resin and 20-60 parts of solvent B.
6. The support protective film tape of any one of claims 1-5, wherein the PET substrate layer comprises a PET biaxially oriented film;
preferably, the optical PET substrate layer comprises an optical PET film;
preferably, the optical PET film has a light transmittance >92% and a haze <2%;
preferably, the release layer comprises a PET release film.
7. The support protective film adhesive tape according to any one of claims 1 to 6, wherein the thickness of the PET base material layer is 20 to 50 μm;
preferably, the thickness of the protective film adhesive layer is 8-40 μm;
preferably, the thickness of the optical PET substrate layer is 40-120 mu m;
preferably, the thickness of the support film adhesive layer is 8-40 μm;
preferably, the thickness of the release layer is 40-60 μm.
8. The support protective film tape according to any one of claims 1 to 7, wherein the support protective film tape has a thickness of 116 to 310 μm.
9. A method of producing the support protective film tape according to any one of claims 1 to 8, comprising the steps of:
(1) Mixing an acrylic adhesive A, a curing agent A, a catalyst, a curing retarder, an antistatic agent and a solvent A to prepare a protective film adhesive; mixing an acrylic adhesive B, a curing agent B, tackifying resin and a solvent B to prepare a support film adhesive;
(2) And (3) coating the support film adhesive prepared in the step (1) on one side of the optical PET substrate layer, attaching the support film adhesive to the release material layer, and coating the protective film adhesive prepared in the step (1) on one side of the PET substrate layer, attaching the protective film adhesive to the other side of the optical PET substrate layer, so as to prepare the support protective film adhesive tape.
10. Use of the supporting protective film tape according to any one of claims 1-8 for protecting and supporting plastic organic screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310851023.2A CN116855187A (en) | 2023-07-12 | 2023-07-12 | Supporting protective film adhesive tape and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310851023.2A CN116855187A (en) | 2023-07-12 | 2023-07-12 | Supporting protective film adhesive tape and preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN116855187A true CN116855187A (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310851023.2A Pending CN116855187A (en) | 2023-07-12 | 2023-07-12 | Supporting protective film adhesive tape and preparation method and application thereof |
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| Country | Link |
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| CN (1) | CN116855187A (en) |
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2023
- 2023-07-12 CN CN202310851023.2A patent/CN116855187A/en active Pending
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