CN111320936A - Full-lamination optical adhesive applied to touch screen and preparation method thereof - Google Patents
Full-lamination optical adhesive applied to touch screen and preparation method thereof Download PDFInfo
- Publication number
- CN111320936A CN111320936A CN201911402797.7A CN201911402797A CN111320936A CN 111320936 A CN111320936 A CN 111320936A CN 201911402797 A CN201911402797 A CN 201911402797A CN 111320936 A CN111320936 A CN 111320936A
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- China
- Prior art keywords
- optical adhesive
- touch screen
- full
- derivatives
- bis
- Prior art date
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- 230000003287 optical effect Effects 0.000 title claims abstract description 75
- 239000000853 adhesive Substances 0.000 title claims abstract description 51
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 51
- 238000003475 lamination Methods 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 12
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- 239000000806 elastomer Substances 0.000 claims abstract description 12
- 239000004611 light stabiliser Substances 0.000 claims abstract description 12
- 239000003999 initiator Substances 0.000 claims abstract description 8
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- -1 aroyl phosphine oxides Chemical class 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 18
- 239000010410 layer Substances 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- OXGOEZHUKDEEKS-UHFFFAOYSA-N 3-tert-butylperoxy-1,1,5-trimethylcyclohexane Chemical compound CC1CC(OOC(C)(C)C)CC(C)(C)C1 OXGOEZHUKDEEKS-UHFFFAOYSA-N 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 4
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 4
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 4
- 239000012965 benzophenone Substances 0.000 claims description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 229940116351 sebacate Drugs 0.000 claims description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 claims description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 4
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- RIPYNJLMMFGZSX-UHFFFAOYSA-N (5-benzoylperoxy-2,5-dimethylhexan-2-yl) benzenecarboperoxoate Chemical compound C=1C=CC=CC=1C(=O)OOC(C)(C)CCC(C)(C)OOC(=O)C1=CC=CC=C1 RIPYNJLMMFGZSX-UHFFFAOYSA-N 0.000 claims description 2
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 2
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 2
- GOAHRBQLKIZLKG-UHFFFAOYSA-N 1-tert-butylperoxybutane Chemical compound CCCCOOC(C)(C)C GOAHRBQLKIZLKG-UHFFFAOYSA-N 0.000 claims description 2
- HMADMAFEFZHZLM-UHFFFAOYSA-N 2,4-dichloro-6-(2,4,4-trimethylpentan-2-yl)-2h-1,3,5-triazin-1-amine Chemical compound CC(C)(C)CC(C)(C)C1=NC(Cl)=NC(Cl)N1N HMADMAFEFZHZLM-UHFFFAOYSA-N 0.000 claims description 2
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 claims description 2
- QSRJVOOOWGXUDY-UHFFFAOYSA-N 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCCOCCOCCOC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 QSRJVOOOWGXUDY-UHFFFAOYSA-N 0.000 claims description 2
- SKVOYPCECYQZAI-UHFFFAOYSA-N 2-ethylhexyl 2-methylbutan-2-ylperoxy carbonate Chemical compound CCCCC(CC)COC(=O)OOOC(C)(C)CC SKVOYPCECYQZAI-UHFFFAOYSA-N 0.000 claims description 2
- BWOITHKYQUJGSB-UHFFFAOYSA-N 2-methylbutan-2-ylperoxycyclohexane Chemical compound CCC(C)(C)OOC1CCCCC1 BWOITHKYQUJGSB-UHFFFAOYSA-N 0.000 claims description 2
- DCQBZYNUSLHVJC-UHFFFAOYSA-N 3-triethoxysilylpropane-1-thiol Chemical compound CCO[Si](OCC)(OCC)CCCS DCQBZYNUSLHVJC-UHFFFAOYSA-N 0.000 claims description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- QCXXDZUWBAHYPA-UHFFFAOYSA-N OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.O=C1NC(=O)NC(=O)N1 Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.O=C1NC(=O)NC(=O)N1 QCXXDZUWBAHYPA-UHFFFAOYSA-N 0.000 claims description 2
- 244000028419 Styrax benzoin Species 0.000 claims description 2
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 2
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 2
- 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 2
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 2
- 150000008062 acetophenones Chemical class 0.000 claims description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 2
- 150000004056 anthraquinones Chemical class 0.000 claims description 2
- QICVZJNIJUZAGZ-UHFFFAOYSA-N benzene;phosphorous acid Chemical compound OP(O)O.C1=CC=CC=C1 QICVZJNIJUZAGZ-UHFFFAOYSA-N 0.000 claims description 2
- WURBFLDFSFBTLW-UHFFFAOYSA-N benzil Chemical compound C=1C=CC=CC=1C(=O)C(=O)C1=CC=CC=C1 WURBFLDFSFBTLW-UHFFFAOYSA-N 0.000 claims description 2
- 229960002130 benzoin Drugs 0.000 claims description 2
- 150000008366 benzophenones Chemical class 0.000 claims description 2
- CTLDFURRFMJGON-UHFFFAOYSA-N dimethoxy-methyl-(3-piperazin-1-ylpropyl)silane Chemical compound CO[Si](C)(OC)CCCN1CCNCC1 CTLDFURRFMJGON-UHFFFAOYSA-N 0.000 claims description 2
- KUMNEOGIHFCNQW-UHFFFAOYSA-N diphenyl phosphite Chemical compound C=1C=CC=CC=1OP([O-])OC1=CC=CC=C1 KUMNEOGIHFCNQW-UHFFFAOYSA-N 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 claims description 2
- 235000019382 gum benzoic Nutrition 0.000 claims description 2
- NZYMWGXNIUZYRC-UHFFFAOYSA-N hexadecyl 3,5-ditert-butyl-4-hydroxybenzoate Chemical compound CCCCCCCCCCCCCCCCOC(=O)C1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NZYMWGXNIUZYRC-UHFFFAOYSA-N 0.000 claims description 2
- MWHNJARVACPRAF-UHFFFAOYSA-N hydroxy 2-methylbutan-2-yl carbonate Chemical compound CCC(C)(C)OC(=O)OO MWHNJARVACPRAF-UHFFFAOYSA-N 0.000 claims description 2
- 229940119545 isobornyl methacrylate Drugs 0.000 claims description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 2
- FRVPQJVZFCJNCO-UHFFFAOYSA-N morpholine;2,4,6-trichloro-1,3,5-triazine Chemical compound C1COCCN1.ClC1=NC(Cl)=NC(Cl)=N1 FRVPQJVZFCJNCO-UHFFFAOYSA-N 0.000 claims description 2
- INJVFBCDVXYHGQ-UHFFFAOYSA-N n'-(3-triethoxysilylpropyl)ethane-1,2-diamine Chemical compound CCO[Si](OCC)(OCC)CCCNCCN INJVFBCDVXYHGQ-UHFFFAOYSA-N 0.000 claims description 2
- KOVKEDGZABFDPF-UHFFFAOYSA-N n-(triethoxysilylmethyl)aniline Chemical compound CCO[Si](OCC)(OCC)CNC1=CC=CC=C1 KOVKEDGZABFDPF-UHFFFAOYSA-N 0.000 claims description 2
- 235000019260 propionic acid Nutrition 0.000 claims description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 2
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- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 2
- GSECCTDWEGTEBD-UHFFFAOYSA-N tert-butylperoxycyclohexane Chemical compound CC(C)(C)OOC1CCCCC1 GSECCTDWEGTEBD-UHFFFAOYSA-N 0.000 claims description 2
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 claims description 2
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- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 2
- PKYCTRXXOZUHFK-UHFFFAOYSA-N tris(1,2,2,6,6-pentamethylpiperidin-4-yl) phosphite Chemical compound C1C(C)(C)N(C)C(C)(C)CC1OP(OC1CC(C)(C)N(C)C(C)(C)C1)OC1CC(C)(C)N(C)C(C)(C)C1 PKYCTRXXOZUHFK-UHFFFAOYSA-N 0.000 claims description 2
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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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
-
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
-
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—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
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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
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
- C09J2423/045—Presence of homo or copolymers of ethene in the release coating
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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
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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Abstract
The invention discloses a full-lamination optical adhesive applied to a touch screen and a preparation method thereof, the full-lamination optical adhesive adopts one or more of EVA, EMA, POE, PE, TPE, TPO, TPU and EPDM elastomer resin as a base material, and the optical adhesive also comprises the following raw materials in parts by weight according to 100 parts of the total weight of the elastomer base material: 0-5 parts of photoinitiator, 0-5 parts of thermal initiator, 0.05-5 parts of polyfunctional group crosslinking agent, 0.01-2 parts of antioxidant, 0.01-2 parts of light stabilizer and 0.1-3 parts of tackifier. The adhesive is applied to the full-lamination field of touch screens, liquid crystal screens and naked eye 3D, and has the advantages of low shrinkage rate, strong bonding capability, good sealing effect, simple lamination process, high production efficiency, capability of avoiding a UV curing process after defoaming, excellent optical performance, hydrolysis resistance, weather resistance and the like.
Description
Technical Field
The invention relates to a formula and a processing method of optical cement, a using method and the application field, in particular to optical cement applied to a touch screen, a liquid crystal display panel and naked eye 3D and a preparation method thereof.
Background
The full-lamination refers to that the panel and the touch screen are completely pasted together in a seamless mode by using liquid optical cement or solid optical film. The full-lamination technology is divided into OCA (optical Clear Adhesive) full lamination and LOCA (Liquid optical Clear Adhesive) full lamination. The OCA optical cement is formed by attaching the upper surface and the lower surface in a double-sided film mode, but bubbles and wrinkles are difficult to completely remove, the yield is not high, and the OCA optical cement is gradually replaced by LOCA liquid cement. The conventional full-lamination screen in the market is mainly an OGS (One Glass Solution single-chip touch panel) scheme which is dominated by the original touch screen manufacturer. The OGS is a full-lamination Touch technology, in which a Touch sensing layer (Touch Sensor) is combined with Cover Glass (Cover Glass), and the structure of a Touch module can be simplified into one piece of Glass; and then, the inner layer of the protective glass is plated with X-axis and Y-axis sensing electrodes, so that the cost of glass materials is reduced, the yield is improved by reducing a bonding procedure, and the price difference between the protective glass and the thin film type touch panel is reduced.
The LOCA liquid optical adhesive is an adhesive widely applied by using an ultraviolet curing technology, and the key technical problems to be solved by the liquid optical adhesive material are high curing shrinkage, low refractive index and high dielectric constant. The existing liquid optical adhesive is combined with an optical display component, and the problems that the gap shadow part which can not be irradiated by UV light is poor in curing, even is not cured, and the adhesion force to partial materials is insufficient exist.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the full-lamination optical cement applied to the touch screen and the preparation method thereof, which are applied to the full-lamination field of touch screens, liquid crystal screens and naked eye 3D, and the full-lamination optical cement has the advantages of low shrinkage rate, strong bonding capability, good sealing effect, simple and convenient lamination process, high production efficiency, capability of avoiding a UV curing process after defoaming, excellent optical performance, hydrolysis resistance, weather resistance and the like.
The technical scheme of the full-lamination optical cement applied to the touch screen provided by the invention is as follows: the optical adhesive is characterized in that one or more of EVA, EMA, POE, PE, TPE, TPO, TPU and EPDM elastomer resin is adopted as a base material, the total weight of the base material is 100 parts according to the elastomer, and the optical adhesive further comprises the following raw materials in parts by weight:
as a further technical solution of the present invention, the photoinitiator is one or a mixture of two or more of benzoin and derivatives thereof, benzil ketal derivatives, benzophenone and derivatives thereof, acetophenone derivatives, alkyl phenones and derivatives thereof, aroyl phosphine oxides and derivatives thereof, aroyl phosphate esters and derivatives thereof, sulfur-containing benzophenone compounds, esterified oxime ketone compounds, aryl peroxy ester compounds, halogenated methyl aryl ketones, benzoyl formate esters, benzophenone and derivatives thereof, thioxanthone and derivatives thereof, anthraquinone and derivatives thereof, triaryliodonium salts and derivatives thereof, alkyl iodonium salts and derivatives thereof, triarylsulfonium salts and derivatives thereof, and cumeneiron and derivatives thereof.
As a further embodiment of the invention, the thermally initiated crosslinking agent may be selected from the group consisting of isopropyl t-butylperoxycarbonate, 2, 5-dimethyl-2, 5-bis (t-butylperoxy) hexane, 1-bis (t-butylperoxy) -3, 3, 5-trimethylcyclohexane, 2-ethylhexyl t-butylperoxycarbonate, 1-bis (t-butylperoxy) -3, 3, 5-trimethylcyclohexane, 1-bis (t-amylperoxy) cyclohexane, 1-bis (t-butylperoxy) cyclohexane, 2-bis (t-butylperoxy) butane, t-amyl peroxy 2-ethylhexylcarbonate, 2, 5-dimethyl 2, 5-bis (benzoylperoxy) -hexane, tert-amyl peroxycarbonate and tert-butyl peroxy3, 3, 5-trimethylhexanoate in any proportion.
In a further embodiment of the present invention, the polyfunctional crosslinking agent is one or a mixture of two or more of cyanuric acid triacrylate, isocyanuric acid triacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, tripropylene glycol diacrylate, hydroxyethyl methacrylate, isobornyl methacrylate, and other acrylate derivatives.
Specifically, the hindered phenol antioxidant is tetra [ β - (3, 5-di-tert-butylphenyl) propionic acid ] pentaerythritol ester, tris (2, 4-di-tert-butylphenyl) phosphite, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, ethylene bis (oxyethylene) bis [3- (5-tert-butyl-4-hydroxy-m-tolyl) propionate ], and the phosphate antioxidant and the phosphite antioxidant are one or more of triphenyl phosphite, triphenyl phosphate, diisooctyl monobenzene phosphite, diisooctyl diphenyl phosphite, 4-diisobisphenol (12-14) carbon alkyl phosphite, and tris (2, 4' -ditert-butylphenyl) phosphite, which are mixed in an arbitrary ratio.
As a further embodiment of the present invention, the light stabilizer is a hindered amine light stabilizer comprising 3, 5-di-t-butyl-4-hydroxy-benzoic acid hexadecyl ester, tris (1, 2,2,6, 6-pentamethyl-4-piperidyl) phosphite, bis-2, 2,6, 6-tetramethylpiperidyl sebacate, bis-1-decyloxy-2, 2,6, 6-tetramethylpiperidin-4-ol sebacate, a polymer of succinic acid and 4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidinol, N' -bis (2, 2,6, 6-tetramethyl-4-piperidyl) -1, 6-hexanediamine and 2, 4-dichloro-6- (1, 1, 3, 3-tetramethylbutyl) amino-1, 3, 5-triazine, N' -bis (2, 2,6, 6-tetramethyl-4-piperidyl) -1, 6-hexanediamine and morpholine-2, 4, 6-trichloro-1, 3, 5-triazine, in any proportion.
As a further technical scheme of the invention, the tackifier is one or a mixture of more than two of gamma-aminopropyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, N- (β -aminoethyl) -gamma-aminopropyltriethoxysilane, vinyltrimethoxysilane, vinyltris (β -methoxyethoxy) silane, gamma-mercaptopropyltriethoxysilane, 3-piperazinylpropylmethyldimethoxysilane, anilinomethyltriethoxysilane and gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane.
In another aspect of the present invention, in order to prepare the above-mentioned fully-laminated optical adhesive applied to a touch screen, the present invention further provides a preparation method of the fully-laminated optical adhesive applied to the touch screen, including the following steps:
s101, mixing and stirring elastomer resin, a photoinitiator, a thermal initiator, a polyfunctional group cross-linking agent, an antioxidant, a light stabilizer, a tackifier and tackifying resin at a high speed in a high-speed stirrer at a high speed according to the weight part ratio to obtain a uniformly mixed mixture;
s102, uniformly mixing and extruding the mixture obtained in the step S101 through a double-screw extruder, wherein the extrusion temperature is 80-120 ℃, and cooling, drawing and granulating the extrudate to obtain granular master batches;
s103, putting the master batch into a single-screw casting extruder, and pressing, cooling, drawing and rolling to obtain the full-lamination optical adhesive applied to the touch screen, wherein the thickness of the full-lamination optical adhesive applied to the touch screen is 0.1-0.9 mm;
and S104, adding an online UV irradiation curing device at the front winding section to realize online grafting curing of the fully-laminated optical adhesive applied to the touch screen.
Further, in step S103, a PE release film and a PET protective film are respectively attached to the front and back surfaces of the extrudate of the single-screw casting extrusion section, and casting, pressing, cooling, drawing, and rolling are performed to obtain a full-lamination optical adhesive with an upper layer, a lower layer, and an intermediate layer, wherein the PE release film and the PET protective film are respectively disposed on the front and back surfaces of the extrudate, and the thickness of the full-lamination optical adhesive is 0.1-0.9 mm.
The back of the extrudate in the casting section is simultaneously attached with a layer of PET, so that the elastic stretching deformation of the extrudate caused by traction force in the casting, traction and winding processes can be prevented; attaching a layer PE at the front simultaneously from type membrane can play the guard action to the surface of extrudate, prevent that the optical cement layer from being contaminated in production, cross cutting, transportation, laminating process, it is more convenient, efficient to operate in the laminating process, and optical cement layer life cycle is longer simultaneously.
As a further technical scheme of the invention, in the above steps, after the fully-laminated optical adhesive applied to the touch screen is laminated at 50-90 ℃ in a vacuum laminating machine, in a positive-pressure defoaming furnace, the defoaming temperature is 60-80 ℃, the pressure is 0.5Mpa, and the defoaming step can be realized after defoaming for 30 min.
Compared with the prior art, the invention has the beneficial effects that:
1) the optical adhesive disclosed by the embodiment of the invention can replace the traditional OCA and LOCA optical adhesives, is simple and convenient in process, energy-saving, environment-friendly and bubble-free when being used for laminating a touch screen and a liquid crystal display screen, greatly improves the laminating production efficiency, reduces the laminating reject ratio and produces the optical adhesive
2) The optical adhesive disclosed by the embodiment of the invention has the advantages of high reaction speed, no need of a rear-end UV curing process, super-strong weather resistance and water resistance, and incomparable advantages of OCA and LOCA. The optical film can meet the higher performance requirements of modern touch screens, particularly vehicle-mounted and outdoor display screens and large-size touch screens, on the optical film, and is more beneficial to the forward development of the touch screen industry.
Drawings
Fig. 1 is a flow chart of a method for preparing a full-lamination optical adhesive applied to a touch screen according to an embodiment of the invention.
Detailed Description
The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment of the invention provides a technical scheme of a full-lamination optical adhesive applied to a touch screen, which comprises the following steps: the optical adhesive is characterized in that one or more of EVA, EMA, POE, PE, TPE, TPO, TPU and EPDM elastomer resin is adopted as a base material, the total weight of the base material is 100 parts according to the elastomer, and the optical adhesive further comprises the following raw materials in parts by weight:
as shown in fig. 1, in order to prepare the above-mentioned full-lamination optical adhesive applied to the touch screen, the present invention further provides a preparation method of the full-lamination optical adhesive applied to the touch screen, including the following steps:
s101, mixing and stirring elastomer resin, a photoinitiator, a thermal initiator, a polyfunctional group cross-linking agent, an antioxidant, a light stabilizer, a tackifier and tackifying resin at a high speed in a high-speed stirrer at a high speed according to the weight part ratio to obtain a uniformly mixed mixture;
s102, uniformly mixing and extruding the mixture obtained in the step S101 through a double-screw extruder, wherein the extrusion temperature is 80-120 ℃, and cooling, drawing and granulating the extrudate to obtain granular master batches;
s103, putting the master batch into a single-screw casting extruder, and pressing, cooling, drawing and rolling to obtain the full-lamination optical adhesive applied to the touch screen, wherein the thickness of the full-lamination optical adhesive applied to the touch screen is 0.1-0.9 mm;
and S104, adding an online UV irradiation curing device at the front winding section to realize online grafting curing of the fully-laminated optical adhesive applied to the touch screen. Irradiating for 10 seconds to 5 minutes under a mercury lamp or LED lamp source with the light intensity of 400-4000 Mw and the wavelength of 200-500 nm, and then carrying out on-line grafting and curing.
Example 1:
100 parts of elastomer resin, 1.0 part of photoinitiator 1-hydroxycyclohexyl phenyl ketone, 0.5 part of thermal initiator peroxide 2-ethylhexyl tert-amyl carbonate, 2 parts of polyfunctional group cross-linking agent trimethylolpropane trimethacrylate, 0.2 part of light stabilizer 4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidinol polymer, 0.2 part of antioxidant β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 2 parts of tackifier 3-methacryloxypropyl trimethoxy silane are uniformly mixed at high speed to obtain a mixture, the mixture is put into a double screw extruder, the extrusion temperature is 100 ℃, cooling and dicing are carried out to obtain master batches, the master batches are put into a single screw extruder, and the single screw extruder is subjected to tape casting, pressing, cooling, UV online grafting curing, drawing and rolling, meanwhile, a layer of PE and PET is respectively attached to the front surface and the back surface of the extruder of the tape casting section, and is subjected to tape casting, pressing, cooling, drawing and rolling to obtain the upper protective films and PET films with the lower layers of the optical adhesive layer, and the optical adhesive layer with the thickness of 0.25 mm.
Example 2:
100 parts of elastomer resin, 1.5 parts of photoinitiator 1-hydroxycyclohexyl phenyl ketone, 0.5 part of thermal initiator peroxide 2-ethylhexyl tert-amyl carbonate, 3 parts of polyfunctional group cross-linking agent trimethylolpropane trimethacrylate, 0.2 part of light stabilizer 4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidinol polymer, 0.2 part of antioxidant β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 2 parts of tackifier 3-methacryloxypropyl trimethoxy silane are uniformly mixed at high speed to obtain a mixture, the mixture is put into a double-screw extruder, the extrusion temperature is 100 ℃, cooling and dicing are carried out to obtain master batches, the master batches are put into a single-screw extruder, and the single-screw extruder is subjected to tape casting, pressing, cooling, UV online grafting curing, pulling and rolling, meanwhile, a layer of PE and PET is respectively attached to the front surface and the back surface of the extrusion of the tape casting section, and is subjected to tape casting, pressing, cooling, pulling and rolling to obtain the upper protective films and PET films with the middle layer of optical adhesive layer, and the thickness of the optical adhesive layer is 0.25 mm.
Example 3:
100 parts of elastomer resin, 2.0 parts of photoinitiator 1-hydroxycyclohexyl phenyl ketone, 0.5 part of thermal initiator peroxide 2-ethylhexyl tert-amyl carbonate, 3.5 parts of polyfunctional group cross-linking agent trimethylolpropane trimethacrylate, 0.2 part of polymer of light stabilizer 4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidinol, 0.2 part of antioxidant β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 2 parts of tackifier 3-methacryloxypropyl trimethoxy silane are mixed uniformly at high speed to obtain a mixture, the mixture is put into a double-screw extruder, the extrusion temperature is 100 ℃, cooling and granulating are carried out to obtain master batches, the mixture is put into a single-screw extruder, and the master batches are subjected to tape casting, pressing, UV on-line curing, traction and rolling, meanwhile, a layer of PE and PET is attached to the front surface and the back surface of the extrusion of the casting section, and the PE and PET are subjected to tape casting, pressing, cooling, traction and rolling to obtain an optical film with an upper protective film and a middle optical adhesive layer, and the thickness of 0.25 mm.
Example 4:
100 parts of elastomer resin, 2.5 parts of photoinitiator 1-hydroxycyclohexyl phenyl ketone, 0.5 part of thermal initiator peroxide 2-ethylhexyl tert-amyl carbonate, 4.5 parts of polyfunctional group cross-linking agent trimethylolpropane trimethacrylate, 0.2 part of polymer of light stabilizer 4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidinol, 0.2 part of antioxidant β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 2 parts of tackifier 3-methacryloxypropyl trimethoxy silane are mixed uniformly at high speed to obtain a mixture, the mixture is put into a double-screw extruder, the extrusion temperature is 100 ℃, cooling and granulating to obtain master batches, the master batches are put into a single-screw extruder, and the single-screw extruder is subjected to tape casting, pressing, cooling, UV online graft curing, traction and rolling, meanwhile, a PE and PET protective film is attached to the front surface and the back surface of the extrusion of the casting section, and the PE and PET protective films with upper and lower layers and an optical adhesive layer in the middle are cast, and the optical adhesive layer is 0.25mm in thickness
The optical glues obtained in the above examples and comparative examples were evaluated by the following test methods, and the evaluation results are shown in table 1:
1. light transmittance
Sample preparation: sample preparation: taking two pieces of glass with the thickness of 1mm, an optical adhesive film and a PET release film, placing the two pieces of glass in the order of lower glass, release film, optical adhesive film, release film and upper glass, prepressing and laminating the two pieces of glass in a vacuum laminating machine at the temperature of 80 ℃, defoaming the two pieces of glass in a positive pressure defoaming furnace for 30min, and taking out the two pieces of glass.
The test method refers to the light transmittance part in national standard GBT2410-2008 'determination of light transmittance and haze of transparent plastic'.
2. Glass/packaging adhesive film bond strength
The test method refers to the national standard GB/T2790 adhesive 180 DEG peel strength test method flexible material to rigid material.
Sample preparation: the glass with the thickness of 1mm, the optical film and the transparent PET substrate with the thickness of 0.2mm are placed in the order of glass-optical film-PET, pre-pressed and attached in a vacuum attaching machine at the temperature of 80 ℃, and then defoamed in a positive pressure defoaming furnace for 30 min. The test was carried out on a tensile machine with a peeling speed of 100mm/min and the tensile strength values were recorded.
3. Humidity and heat resistance accelerated aging test
Sample preparation: taking two pieces of glass with the thickness of 1mm, clamping the optical adhesive film from top to bottom, pre-pressing and attaching the sample with the specification of 100mm x 100mm in a vacuum attaching machine at the temperature of 80 ℃, and then defoaming in a positive pressure defoaming furnace for 30 minutes. An accelerated humid heat ageing test was carried out under the following conditions:
temperature: and (4) the humidity is 85% at 85 ℃ for 1000h, and the phenomena of delamination, bubbles and yellowing of the aged sample are avoided.
TABLE 1
| Optical film sample | Light transmittance | Adhesive strength | Damp-heat aging (DH1000) |
| Example one | 91.5％ | 86N/cm | No delamination, no bubble, no yellowing |
| Example two | 91.8％ | 96N/cm | No delamination, no bubble, no yellowing |
| Example three | 91.1％ | 110N/cm | No delamination, no bubble, no yellowing |
| Example four | 91.8％ | 120N/cm | No delamination, no bubble, no yellowing |
And (3) test results: according to the scheme, the acrylate monomer and the tackifier monomer can be grafted on elastomer molecules through on-line UV grafting curing, and the panel and the touch screen and the cover plate glass can be effectively bonded through a later-stage thermal bonding process. The subsequent UV curing process is omitted, and the production efficiency and the product performance are effectively improved.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (10)
1. The utility model provides a be applied to touch screen's full laminating optical cement, a serial communication port, full laminating optical cement adopts including EVA, EMA, POE, PE, TPE, TPO, TPU, in the EPDM elastomer resin one or several kinds of mixture be the base stock, is 100 parts according to the elastomer base stock total weight, optical cement still includes the following raw materials by weight:
2. the full-lamination optical adhesive applied to the touch screen as claimed in claim 1, wherein the photoinitiator is one or a mixture of two or more of benzoin and its derivatives, benzil ketal derivatives, benzophenone and its derivatives, acetophenone derivatives, alkyl phenones and their derivatives, aroyl phosphine oxides and their derivatives, aroyl phosphate and their derivatives, sulfur-containing benzophenone compounds, esterified oxime ketone compounds, aryl peroxy ester compounds, halomethyl aryl ketones, benzoyl formate, benzophenone and its derivatives, thioxanthone and its derivatives, anthraquinone and its derivatives, triaryliodonium salts and its derivatives, alkyl iodonium salts and their derivatives, triarylsulfonium salts and their derivatives, and cumeneiron and its derivatives.
3. The fully-laminated optical adhesive applied to a touch screen according to claim 1, wherein the thermal-induced cross-linking agent is selected from isopropyl t-butylperoxycarbonate, 2, 5-dimethyl-2, 5-bis (t-butylperoxy) hexane, 1-bis (t-butylperoxy) -3, 3, 5-trimethylcyclohexane, 2-ethylhexyl t-butylperoxycarbonate, 1-bis (t-butylperoxy) -3, 3, 5-trimethylcyclohexane, 1-bis (t-amylperoxy) cyclohexane, 1-bis (t-butylperoxy) cyclohexane, 2-bis (t-butylperoxy) butane, t-amyl peroxy 2-ethylhexylcarbonate, t-amyl peroxy carbonate, and mixtures thereof, One or more of 2, 5-dimethyl 2, 5-bis (benzoylperoxy) -hexane, tert-amyl peroxycarbonate and tert-butyl peroxy3, 3, 5-trimethylhexanoate are mixed according to any proportion.
4. The full-lamination optical adhesive applied to the touch screen as claimed in claim 1, wherein the multifunctional crosslinking agent is one or a mixture of more than two of cyanuric acid triacrylate, isocyanuric acid triacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, tripropylene glycol diacrylate, hydroxyethyl methacrylate, isobornyl methacrylate and other acrylate derivatives.
5. The full-lamination optical adhesive applied to the touch screen as claimed in claim 1, wherein the antioxidant is one or a mixture of two or more of phosphate, phosphite and hindered phenol antioxidants, specifically, the hindered phenol antioxidants are tetra [ β - (3, 5-di-tert-butylphenyl) propionic acid ] pentaerythritol ester, tris (2, 4-di-tert-butylphenyl) phosphite, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid n-octadecyl ester, ethylene bis (oxyethylene) bis [3- (5-tert-butyl-4-hydroxy-m-tolyl) propionate ], and the phosphate and phosphite antioxidants are one or more of triphenyl phosphite, triphenyl phosphate, diisooctyl monobenzene phosphite, diisooctyl diphenyl phosphite, 4-diisobisphenol (12-14) alkyl phosphite and tris (2, 4' -ditert-butylphenyl) phosphite, which are mixed in any ratio.
6. The full-lamination optical adhesive applied to a touch screen as claimed in claim 1, wherein the light stabilizer is a hindered amine light stabilizer and is prepared from hexadecyl 3, 5-di-tert-butyl-4-hydroxy-benzoate, tris (1, 2,2,6, 6-pentamethyl-4-piperidyl) phosphite, bis-2, 2,6, 6-tetramethylpiperidyl sebacate, bis-1-decyloxy-2, 2,6, 6-tetramethylpiperidyl-4-ol sebacate, a polymer of succinic acid and 4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidyl alcohol, N' -bis (2, 2,6, 6-tetramethyl-4-piperidyl) -1, one or more of a polymer of 6-hexamethylene diamine and 2, 4-dichloro-6- (1, 1, 3, 3-tetramethylbutyl) amino-1, 3, 5-triazine, and a polymer of N, N' -bis (2, 2,6, 6-tetramethyl-4-piperidyl) -1, 6-hexamethylene diamine and morpholine-2, 4, 6-trichloro-1, 3, 5-triazine are mixed according to any proportion.
7. The full-lamination optical adhesive applied to a touch screen as claimed in claim 1, wherein the tackifier is one or a mixture of more than two of gamma-aminopropyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, N- (β -aminoethyl) -gamma-aminopropyltriethoxysilane, vinyltrimethoxysilane, vinyltris (β -methoxyethoxy) silane, gamma-mercaptopropyltriethoxysilane, 3-piperazinylpropylmethyldimethoxysilane, anilinomethyltriethoxysilane, and gamma- (2, 3-glycidoxy) propyltrimethoxysilane.
8. A method for preparing the full-lamination optical adhesive applied to the touch screen, according to any one of claims 1 to 7, the method comprises the following steps:
s101, mixing and stirring elastomer resin, a photoinitiator, a thermal initiator, a polyfunctional group cross-linking agent, an antioxidant, a light stabilizer, a tackifier and tackifying resin at a high speed in a high-speed stirrer at a high speed according to the weight part ratio to obtain a uniformly mixed mixture;
s102, uniformly mixing and extruding the mixture obtained in the step S101 through a double-screw extruder, wherein the extrusion temperature is 80-120 ℃, and cooling, drawing and granulating the extrudate to obtain granular master batches;
s103, putting the master batch into a single-screw casting extruder, and pressing, cooling, drawing and rolling to obtain the full-lamination optical adhesive applied to the touch screen, wherein the thickness of the full-lamination optical adhesive applied to the touch screen is 0.1-0.9 mm;
and S104, adding an online UV irradiation curing device at the front winding section to realize online grafting curing of the fully-laminated optical adhesive applied to the touch screen.
9. The method as claimed in claim 8, wherein in step S103, a PE release film and a PET protective film are respectively attached to the front and back surfaces of the extrudate in the single-screw casting extrusion section, and casting, pressing, cooling, drawing, and rolling are performed to obtain the fully-laminated optical adhesive with the PE release film and the PET protective film as upper and lower layers and the optical adhesive layer as middle layer, wherein the thickness of the fully-laminated optical adhesive is 0.1-0.9 mm.
10. The method for preparing the fully-laminated optical adhesive for the touch screen according to claim 8, wherein the fully-laminated optical adhesive for the touch screen is laminated at 50-90 ℃ in a vacuum laminating machine, and then defoamed in a positive pressure defoaming furnace at 60-80 ℃ under 0.5Mpa for 30 min.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (5)
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| CN114085648A (en) * | 2021-12-09 | 2022-02-25 | 鑫序高分子材料(苏州)有限公司 | Method for preparing adhesive film by applying high-resilience thermoplastic elastomer adhesive |
| CN115011283A (en) * | 2022-07-13 | 2022-09-06 | 新纶电子材料(常州)有限公司 | Hot melt adhesive particle, laminated busbar insulation adhesive film and preparation method thereof |
| CN115216238A (en) * | 2021-05-31 | 2022-10-21 | 江苏斯迪克新材料科技股份有限公司 | Optical adhesive tape |
| CN115216241A (en) * | 2021-05-31 | 2022-10-21 | 江苏斯迪克新材料科技股份有限公司 | Preparation method of optical adhesive tape |
| CN117866545A (en) * | 2024-01-30 | 2024-04-12 | 东莞市展威电子科技有限公司 | Uv curing EVA adhesive film suitable for electronic packaging |
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| CN110128955A (en) * | 2019-05-14 | 2019-08-16 | 苏州优利鸿电子科技有限公司 | Touch screen photo-thermal dual curable optical adhesive film |
| CN110499111A (en) * | 2019-07-01 | 2019-11-26 | 深圳市立昕光学材料科技有限公司 | A kind of polyolefin optical glue film and preparation method thereof that UV crosslinking curing is modified |
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| CN115216238A (en) * | 2021-05-31 | 2022-10-21 | 江苏斯迪克新材料科技股份有限公司 | Optical adhesive tape |
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| CN114085648A (en) * | 2021-12-09 | 2022-02-25 | 鑫序高分子材料(苏州)有限公司 | Method for preparing adhesive film by applying high-resilience thermoplastic elastomer adhesive |
| CN115011283A (en) * | 2022-07-13 | 2022-09-06 | 新纶电子材料(常州)有限公司 | Hot melt adhesive particle, laminated busbar insulation adhesive film and preparation method thereof |
| CN117866545A (en) * | 2024-01-30 | 2024-04-12 | 东莞市展威电子科技有限公司 | Uv curing EVA adhesive film suitable for electronic packaging |
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