CN114410229A - Adhesive tape coating liquid composition, adhesive tape coating liquid, adhesive tape and preparation method thereof - Google Patents
Adhesive tape coating liquid composition, adhesive tape coating liquid, adhesive tape and preparation method thereof Download PDFInfo
- Publication number
- CN114410229A CN114410229A CN202210004717.8A CN202210004717A CN114410229A CN 114410229 A CN114410229 A CN 114410229A CN 202210004717 A CN202210004717 A CN 202210004717A CN 114410229 A CN114410229 A CN 114410229A
- Authority
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- China
- Prior art keywords
- coating
- adhesive tape
- monomer
- coating liquid
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 139
- 239000011248 coating agent Substances 0.000 title claims abstract description 136
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 72
- 239000007788 liquid Substances 0.000 title claims abstract description 60
- 239000000203 mixture Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title abstract description 37
- 239000000178 monomer Substances 0.000 claims abstract description 120
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 42
- 238000004132 cross linking Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 26
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 26
- 239000002216 antistatic agent Substances 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 46
- 239000002904 solvent Substances 0.000 claims description 36
- 239000011253 protective coating Substances 0.000 claims description 32
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 239000000758 substrate Substances 0.000 claims description 24
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 22
- 239000003999 initiator Substances 0.000 claims description 21
- 239000002994 raw material Substances 0.000 claims description 21
- 239000011241 protective layer Substances 0.000 claims description 20
- 229920002125 Sokalan® Polymers 0.000 claims description 16
- 239000004584 polyacrylic acid Substances 0.000 claims description 16
- 239000011247 coating layer Substances 0.000 claims description 13
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 11
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 229920001296 polysiloxane Polymers 0.000 claims description 11
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 10
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 9
- -1 amine ethylene oxide Chemical class 0.000 claims description 8
- 239000003431 cross linking reagent Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 7
- 238000002834 transmittance Methods 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 5
- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 claims description 3
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 2
- CYUZOYPRAQASLN-UHFFFAOYSA-N 3-prop-2-enoyloxypropanoic acid Chemical compound OC(=O)CCOC(=O)C=C CYUZOYPRAQASLN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000012298 atmosphere Substances 0.000 claims description 2
- 229910003002 lithium salt Inorganic materials 0.000 claims description 2
- 159000000002 lithium salts Chemical group 0.000 claims description 2
- MCVFFRWZNYZUIJ-UHFFFAOYSA-M lithium;trifluoromethanesulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)F MCVFFRWZNYZUIJ-UHFFFAOYSA-M 0.000 claims description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 20
- 230000001070 adhesive effect Effects 0.000 abstract description 13
- 239000000853 adhesive Substances 0.000 abstract description 12
- 230000003068 static effect Effects 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 24
- 238000002156 mixing Methods 0.000 description 22
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 18
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 15
- 229920000106 Liquid crystal polymer Polymers 0.000 description 13
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 239000008367 deionised water Substances 0.000 description 9
- 229910021641 deionized water Inorganic materials 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 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 8
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 229920001721 polyimide Polymers 0.000 description 6
- VDVLPSWVDYJFRW-UHFFFAOYSA-N lithium;bis(fluorosulfonyl)azanide Chemical compound [Li+].FS(=O)(=O)[N-]S(F)(=O)=O VDVLPSWVDYJFRW-UHFFFAOYSA-N 0.000 description 5
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 229920006267 polyester film Polymers 0.000 description 4
- QRIMLDXJAPZHJE-UHFFFAOYSA-N 2,3-dihydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(O)CO QRIMLDXJAPZHJE-UHFFFAOYSA-N 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229920001940 conductive polymer Polymers 0.000 description 3
- ARLJCLKHRZGWGL-UHFFFAOYSA-N ethenylsilicon Chemical compound [Si]C=C ARLJCLKHRZGWGL-UHFFFAOYSA-N 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002195 synergetic effect Effects 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 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions 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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/18—Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D165/00—Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- 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
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
-
- 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
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
- C09J9/02—Electrically-conducting adhesives
-
- 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
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/314—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive layer and/or the carrier being conductive
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
-
- 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
- C09J2479/00—Presence of polyamine or polyimide
- C09J2479/08—Presence of polyamine or polyimide polyimide
- C09J2479/086—Presence of polyamine or polyimide polyimide in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention provides an adhesive tape coating liquid composition, an adhesive tape coating liquid, an adhesive tape and a preparation method thereof. The composition comprises polyacrylic resin, an antistatic agent and an antioxidant; the comonomer of the polyacrylic resin comprises a soft monomer, a hard monomer and a crosslinking monomer; wherein, based on the total weight of the polyacrylic resin, the content of the soft monomer is 50-90 wt%, the content of the hard monomer is 5-25 wt%, and the content of the crosslinking monomer is 5-25 wt%. The adhesive tape containing the adhesive tape coating liquid composition is stable in viscosity and free of deformation after being attached with LCP and subjected to high temperature of 260 ℃, keeps an antistatic effect all the time, has no adhesive residue in a normal test process, and does not influence the static property of a product after being subjected to a high-temperature process.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to an adhesive tape coating liquid composition and a preparation method thereof, an adhesive tape coating liquid obtained from the adhesive tape coating liquid composition, an adhesive tape containing the adhesive tape coating liquid and a preparation method thereof.
Background
In the modern age, 5G commercial is started, the information amount of communication processing starts to increase by multiples, and an antenna is an indispensable component for realizing the spanning promotion. How to achieve lower loss, smaller size, better heat conduction and more integration at high frequency becomes a great challenge for 5G antenna materials. LCP (Liquid Crystal Polymer) and MPI (Modified Polyimide) materials are expected to be distinguished in the future 5G era due to the characteristic of small loss factor, and the substitution of LCP soft plates for antenna transmission lines becomes the future development trend.
However, the high temperature resistant adhesive tape used in the market at present has some problems in the using process: after the LCP is adhered to the adhesive tape and the temperature is high at 260 ℃, the situation of adhesive residue can occur; and the antistatic effect of the adhesive tape disappears after the high-temperature process, so that static electricity generated in the tearing process has destructive influence on the LCP.
Therefore, the development of the adhesive tape which has stable viscosity and no adhesive residue after being treated at the high temperature of 260 ℃ and has an antistatic effect is of great significance.
Disclosure of Invention
The present invention has been made to overcome the above problems occurring in the prior art, and an object of the present invention is to provide a tape coating liquid composition and a method for preparing the same, a tape coating liquid obtained from the tape coating liquid composition, a tape containing the tape coating liquid, and a method for preparing the same. The adhesive tape is stable in viscosity and free of deformation after being attached to the LCP at the high temperature of 260 ℃, an antistatic effect is kept all the time, no adhesive residue exists in the normal test process, and the electrostatic property of the product is not influenced after the high-temperature process.
In order to achieve the above object, a first aspect of the present invention provides a tape coating liquid composition comprising a polyacrylic resin, an antistatic agent, an antioxidant; the comonomer of the polyacrylic resin comprises a soft monomer, a hard monomer and a crosslinking monomer;
wherein, based on the total weight of the polyacrylic resin, the content of the soft monomer is 50-90 wt%, the content of the hard monomer is 5-25 wt%, and the content of the crosslinking monomer is 5-25 wt%.
In the present invention, the "soft monomer" refers to a comonomer having a glass transition temperature of less than 0 degree among acrylate monomers. The hard monomer refers to a comonomer with a glass transition temperature higher than 0 degree in the acrylate monomer. The crosslinking monomer is a monomer which mainly plays a role in crosslinking of acrylate monomers, the adhesive property of the pressure-sensitive adhesive is obviously improved due to the strong polar functional groups of the monomers, and the cohesive strength, heat resistance and aging resistance of the pressure-sensitive adhesive can be greatly improved due to the concomitant physicochemical crosslinking.
In the present invention, the soft monomer, the hard monomer and the crosslinking monomer are comonomers for preparing the polyacrylic resin, and specific kinds of the soft monomer, the hard monomer and the crosslinking monomer are not limited, and acrylate monomers conventionally used in the art may be selected. In order to improve the copolymerization effect of the monomers, the soft monomer is preferably selected from acrylate monomers with the glass transition temperature of-10 to-90 ℃; the hard monomer is an acrylate monomer with the glass transition temperature of 5-120 ℃; the crosslinking monomer is selected from acrylate monomers with a crosslinking function.
By using the polyacrylic resin, the antistatic agent and the antioxidant in a matching manner, better effects than those of the prior art can be achieved. To further enhance the effect, one or more of the technical features may be further preferred.
Preferably, the soft monomer is selected from one or more of butyl acrylate, isooctyl acrylate and ethyl acrylate; butyl acrylate is more preferred.
Preferably, the hard monomer is selected from one or more of vinyl acetate, methyl acrylate, methyl methacrylate and isobornyl acrylate.
More preferably, the hard monomer is a combination of vinyl acetate, methyl acrylate and methyl methacrylate. Further preferably, the weight ratio of vinyl acetate, methyl acrylate and methyl methacrylate is 1: (1-3): (2-5).
Preferably, the crosslinking monomer is selected from one or more of acrylic acid, methacrylic acid, beta-carboxyethyl acrylate, hydroxyethyl acrylate and hydroxypropyl acrylate; acrylic acid is more preferred.
The inventor of the invention finds that the polyacrylic resin, the antistatic agent and the antioxidant are used together to form the raw materials for preparing the adhesive tape coating liquid, so that the adhesive tape containing the adhesive tape coating liquid coating layer has good high-temperature resistance, can bear high temperature of 260 ℃, has stable viscosity without deformation, and can keep the antistatic effect all the time.
In order to make the effect of the synergistic cooperation of the soft monomer, the hard monomer and the crosslinking monomer in the polyacrylic resin better. Preferably, the content of the soft monomer is 60-80 wt%, the content of the hard monomer is 8-20 wt%, and the content of the crosslinking monomer is 8-20 wt%, based on the total weight of the polyacrylic resin.
In one embodiment of the invention, the co-monomer of the polyacrylic resin is a combination of butyl acrylate (as a soft monomer), vinyl acetate, methyl acrylate and methyl methacrylate (as a hard monomer), and acrylic acid (as a crosslinking monomer). Wherein the weight ratio of vinyl acetate, methyl acrylate and methyl methacrylate is 1: (1-3): (2-5).
The inventor of the invention finds that after the combination of the specific soft monomer, the specific hard monomer and the specific crosslinking monomer is selected, the synergistic cooperation effect is better, the performance of the prepared polyacrylic resin is better, and the adhesive tape prepared from the adhesive tape coating liquid is more stable in viscosity and better in effect of no residual adhesive.
Preferably, the antistatic agent is a lithium salt; preferably, the antistatic agent is selected from one or two of lithium bis (fluorosulfonyl) imide, lithium difluoro (oxalato) borate and lithium trifluoromethanesulfonate; more preferably lithium bis (fluorosulfonyl) imide.
Preferably, the antioxidant is a hindered phenolic antioxidant, preferably the antioxidant is selected from one or more of basf 168, basf 126, basf 1010 and basf 1076.
Preferably, the composition further comprises a curing agent, and the curing agent is an epoxy curing agent, and can be glycidyl methacrylate.
Preferably, the composition further comprises a solvent; the solvent may be one or more selected from toluene and ethyl acetate.
In order to make the effect of blending polyacrylic resin, antistatic agent, antioxidant and curing agent better. Based on the total weight of the composition, the content of the polyacrylic resin is 70-90 wt%, the content of the antistatic agent is 0.5-3 wt%, the content of the antioxidant is 1-6 wt%, the content of the curing agent is 1-5 wt%, and the content of the solvent is 5-20 wt%.
More preferably, the polyacrylic acid resin is contained in an amount of 78 to 88 wt%, the antistatic agent is contained in an amount of 0.8 to 1.5 wt%, the antioxidant is contained in an amount of 2 to 5 wt%, the curing agent is contained in an amount of 1.5 to 3 wt%, and the solvent is contained in an amount of 6 to 15 wt%, based on the total weight of the composition.
It will be appreciated that the first aspect of the present invention is a composition which is formulated and not restricted to the form in which the materials are present, i.e. the components may be mixed with each other or stored separately. On the premise of avoiding reaction at an inappropriate timing, whether to mix, a storage method, and the like can be selected as needed.
It is understood that the composition of the present invention may not contain a solvent for the convenience of manufacture, transportation and sale, and the purchaser may prepare and add the solvent during the preparation of the tape coating solution.
The present invention in its second aspect provides a method for preparing a tape coating liquid composition according to the first aspect of the present invention, comprising the steps of:
(1) under inert atmosphere and heating condition, carrying out first contact on a soft monomer, a hard monomer and a crosslinking monomer in the adhesive tape coating liquid composition;
(2) carrying out second contact on the material obtained in the step (1) and a first initiator, and carrying out third contact on the material after the second contact and a second initiator;
(3) and (3) carrying out fourth contact on the material obtained in the step (2) with the antistatic agent, the antioxidant and the curing agent.
In the present invention, the numerical expressions such as "first" and "second" are only used to distinguish different reaction processes, and different existence forms or usage forms do not represent the difference of the order.
Wherein, in the step (1), the first contact is a mixing process of a soft monomer, a hard monomer and a crosslinking monomer. The conditions of the first contact include: the heating temperature is 40-80 ℃, preferably 50-70 ℃; the heating time is 0.3-3h, preferably 0.6-1.5 h.
In the step (2), the second contact is a process of generating polyacrylic resin by copolymerization reaction of the soft monomer, the hard monomer and the crosslinking monomer under the action of the first initiator. The conditions of the second contacting include: the heating temperature is 50-80 ℃, and preferably 60-70 ℃; the heating time is 2-7h, preferably 3-5 h.
In the step (2), the third contact is a process of generating polyacrylic resin by copolymerization reaction of the soft monomer, the hard monomer and the crosslinking monomer under the action of the second initiator. The conditions of the third contacting include: the heating temperature is 50-80 ℃, and preferably 60-70 ℃; the heating time is 2-7h, preferably 3-5 h.
In the step (2), the initiator is added step by step to keep relatively stable initiator concentration in the polymerization reaction of the soft monomer, the hard monomer and the crosslinking monomer in the whole process, which is beneficial to smooth polymerization reaction and improves the monomer conversion rate. In order to further increase the monomer conversion rate of the above three-monomer copolymerization reaction, it is preferable that the first initiator and the second initiator are the same.
In one embodiment of the present invention, the first initiator and the second initiator may be selected from one of dibenzoyl peroxide or azobisisobutyronitrile.
Wherein, in the step (3), the fourth contact is a process of mixing the polyacrylic resin with the antistatic agent, the antioxidant and the curing agent. The conditions of the fourth contact include: the temperature is 20-30 ℃, the time is 30-50min, and the mixing speed is 200-300 rpm.
Preferably, after the soft monomer, the hard monomer and the crosslinking monomer are copolymerized to generate the polyacrylic resin in the step (2), a step of diluting the polyacrylic resin is further included. For example, a suitable amount of solvent is added to obtain a polyacrylic resin having a solids content of 25 to 40%, preferably 27 to 33%. The solvent is not particularly limited and may be selected from one or more of ethyl acetate and toluene.
The third aspect of the present invention provides a tape coating liquid containing or prepared from the tape coating liquid composition according to the first aspect of the present invention or the composition obtained by the method according to the second aspect of the present invention.
The adhesive tape coating liquid is a liquid product which can be directly applied to coating, contains the adhesive tape coating liquid composition, can also contain auxiliary materials, auxiliary agents, solvents and other components which are conventionally added in the field, and can be added as required.
The tape coating liquid according to the third aspect of the present invention has all the advantages of the tape coating liquid composition according to the first aspect of the present invention, and will not be described in detail herein.
The invention provides an adhesive tape, which comprises a base material layer and a functional coating coated on the surface of the base material layer; the functional coating layer is prepared from the tape coating liquid according to the third aspect of the present invention, or the tape coating liquid composition according to the first aspect of the present invention.
In the invention, the functional coating has the advantages of high temperature resistance and static resistance, has viscosity, has the peeling force of being attached to SUS (Steel Use Stainless, Stainless Steel, Kejian) more than or equal to 1300gf/in, and mainly plays a role of being attached to LCP. The functional coating layer has all the advantages of the adhesive tape coating liquid composition according to the first aspect of the present invention, and will not be described in detail herein.
In order to make the adhesive tape have better effect without adhesive residue after use, the thickness of the functional coating is preferably 20 μm to 100 μm, and is preferably 35 μm to 75 μm.
In the present invention, the material of the base material layer is not particularly limited, and a material conventionally used as a base material of a tape in the art may be selected. For example, the substrate layer may be polyimide, preferably a PI film (polyimide film).
Preferably, the thickness of the substrate layer is 30 μm to 200 μm, preferably 50 μm to 150 μm.
Preferably, the transmittance of the base material layer is more than or equal to 15 percent, and the haze is less than or equal to 1 percent.
The inventor of the invention finds that the light transmission performance of the base material layer at the wavelength band of 940nm is controlled to be 69.2-84.2%, and the light transmission performance at the wavelength band of 525nm is controlled to be 5.6-34.2%, so that the problem of missing pasting products in an SMT (surface Mounted technology) process can be solved, and poor assembly and waste are reduced.
In the invention, an antistatic coating is also arranged between the substrate layer and the functional coating. The antistatic coating is arranged and matched with the functional coating, so that the antistatic performance of the adhesive tape is better.
Preferably, the functional ingredients of the antistatic coating comprise one or more of polymers of PEDOT/PSS, quaternary ammonium inner salts and fatty amine ethylene oxide adducts. It is understood that the antistatic coating layer may further contain a solvent to form a coating liquid of the antistatic coating layer, in addition to the above functional components for electrical conduction and antistatic effect. The solvent is not particularly limited, and may be one that dissolves the functional components and does not chemically react with them. For example, the solvent may be a combination of two of deionized water, isopropanol, and ethanol.
In one embodiment of the invention, the antistatic coating comprises a polymer of PEDOT/PSS, deionized water and isopropanol. Preferably, the content of the polymer of PEDOT/PSS is 30-60 wt%, the content of the deionized water is 10-30 wt%, and the content of the isopropanol is 30-60 wt%, based on the total weight of the antistatic coating.
Preferably, the thickness of the antistatic coating is between 0.1 μm and 5 μm, preferably between 0.5 μm and 2 μm.
In the invention, the surface of the substrate layer, which is far away from the functional coating layer, is coated with the protective coating, and the surface of the protective coating, which is far away from the substrate layer, is covered with the protective layer.
The inventors of the present invention have found that tape for positioning and protection requires a positioning action before it is applied to the LCP, but that the accuracy of positioning may be compromised if the tape surface is slightly scratched. Therefore, the protective coating and the protective layer are added in the adhesive tape provided by the invention, the appearance of the adhesive tape can be protected, and the positioning effect of the adhesive tape is prevented from being influenced by the conditions of appearance lines, pollution and the like of the base material layer.
Preferably, the protective coating comprises one or more of a polysiloxane, an MQ resin (a silicone resin consisting of monofunctional silicone units and tetrafunctional silicone units), a vinyl silicone gum, a catalyst, a solvent, an inhibitor, an anchor agent, and a cross-linking agent.
In one embodiment of the invention, the polysiloxane is present in an amount of 3 to 7 weight percent, the MQ resin is present in an amount of 6 to 12 weight percent, the vinyl silicone gum is present in an amount of 20 to 30 weight percent, the catalyst is present in an amount of 0.3 to 0.7 weight percent, the solvent is present in an amount of 50 to 70 weight percent, the inhibitor is present in an amount of 0.1 to 0.5 weight percent, the anchor is present in an amount of 0.1 to 0.6 weight percent, and the cross-linking agent is present in an amount of 0.2 to 0.5 weight percent, based on the total weight of the protective coating.
In the protective coating, specific choices of the catalyst, the solvent, the inhibitor, the anchoring agent, and the crosslinking agent are not particularly limited, and a substance capable of performing a corresponding function in the art may be selected.
Preferably, the protective coating has a thickness of 3 μm to 30 μm, preferably 5 μm to 20 μm.
In order to make the protective coating is more easily torn off, the condition that the cull appears at the substrate layer is avoided. Preferably, the protective coating has a low tack, preferably a tack ≦ 3 gf/in.
In the invention, the protective layer and the protective coating are used in a bonding way, and the protective layer and the protective coating are directly removed when the adhesive tape is used. The material of the protective layer is not particularly limited, and a transparent film material that can be attached to the protective coating may be selected. For example, the protective layer may be a transparent polyester film.
Preferably, the thickness of the protective layer is 10 μm to 100 μm, preferably 25 μm to 50 μm.
In the invention, the surface of one side of the functional coating layer, which is far away from the substrate layer, is covered with the release material layer.
Preferably, the release material layer may be selected from one or more of PET, PE, and OPP.
Preferably, the thickness of the release material layer is 10 μm to 100 μm, preferably 25 μm to 50 μm.
In one embodiment of the present invention, the adhesive tape has a multi-layer structure, and as can be seen from the structural diagram of fig. 1, the adhesive tape sequentially comprises a protective layer, a protective coating layer, a substrate layer, an antistatic coating layer, a functional coating layer and a release material layer from top to bottom. The multilayer structure is matched, so that the adhesive tape provided by the invention has the advantages of high temperature resistance, static resistance, positioning and protecting functions by being attached with LCP (liquid Crystal Polymer), no residual adhesive after being torn, and the like.
The fifth aspect of the present invention provides a method for producing the adhesive tape according to the fourth aspect of the present invention, which comprises carrying out the following steps using the adhesive tape coating liquid composition according to the first aspect of the present invention as a raw material:
(a) preparing a coating liquid for obtaining a functional coating by using the adhesive tape coating liquid composition as a raw material;
(b) coating the coating liquid of the antistatic coating on the surface of the substrate layer;
(c) coating the coating liquid of the functional coating obtained in the step (a) on the surface of the antistatic coating, and drying;
(d) attaching the release material layer to the surface of the functional coating;
(e) and coating the protective coating on the surface of the protective layer, drying and attaching the protective coating to the surface of the base material layer.
Wherein, the sequence of steps (a) - (e) can be adjusted according to actual needs.
The adhesive tape according to the fourth aspect of the present invention can be obtained by the production method according to the fifth aspect of the present invention.
The invention adopts the technical scheme and has the following beneficial effects:
(1) after the adhesive tape coating liquid composition is prepared into the adhesive tape coating liquid, an adhesive tape containing the adhesive tape coating liquid coating layer has good high-temperature resistance, an antistatic coating of the adhesive tape does not migrate under the high-temperature condition of 260 ℃ in the attaching process, the whole adhesive surface cannot be degummed, the antistatic effect is good, and after LCP is attached, the adhesive tape still has a high-efficiency antistatic effect when being torn off through reflow soldering at 260 ℃ for 15 min;
(2) the adhesive tape provided by the invention has antistatic performance and high temperature resistance, is bonded with LCP (liquid Crystal Polymer) for positioning and protecting, and has no residual adhesive after being torn;
(3) the adhesive tape provided by the invention has an appearance protection function, and can avoid the influence of the appearance lines, pollution and other conditions of the substrate layer on the positioning effect of the adhesive tape.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
Drawings
Fig. 1 is a schematic structural view of an adhesive tape provided in example 1.
Detailed Description
Unless defined otherwise, all scientific and technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
The invention is described in detail below with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
In the following examples, the components used are all commercially available analytical grades, unless otherwise specified. 1 part by weight represents 1 g.
Preparation example 1 preparation of polyacrylic resin
(1) Preparing the raw materials
Soft monomer: 80 parts by weight of butyl acrylate;
hard monomer: 2 parts by weight of vinyl acetate; 4 parts by weight of methyl acrylate; 6 parts by weight of methyl methacrylate;
crosslinking monomer: 8 parts by weight of acrylic acid;
initiator: 0.4 part by weight of azobisisobutyronitrile;
solvent: ethyl acetate, 130 parts by weight.
(2) Adding the soft monomer, the hard monomer and the crosslinking monomer in the step (1) into a reaction kettle according to a formula, introducing inert gas, and heating to 60 ℃ for reaction for 1 h; adding 0.2 weight part of initiator, reacting for 4 hours at 65 ℃, adding 0.2 weight part of initiator, reacting for 4 hours, and finally adding solvent to obtain the polyacrylic resin with the solid content of 30%.
Preparation example 2 preparation of polyacrylic resin
The procedure was carried out as in preparation example 1, except that the contents of the three monomers were varied. Wherein, the soft monomer accounts for 90 parts by weight; 5 parts by weight of hard monomer; 5 parts by weight of a crosslinking monomer; the type and internal proportions of the monomers are kept constant (e.g., the proportions of the three components in the hard monomer are constant, only the total amount is changed).
Preparation example 3 preparation of polyacrylic resin
(1) Preparing the raw materials
Soft monomer: 70 parts of butyl acrylate;
hard monomer: 3 parts by weight of vinyl acetate; 4 parts by weight of methyl acrylate; 10 parts by weight of methyl methacrylate;
crosslinking monomer: acrylic acid, 13 parts by weight;
initiator: 0.4 part by weight of azobisisobutyronitrile;
solvent: ethyl acetate, 130 parts by weight.
(2) Adding the soft monomer, the hard monomer and the crosslinking monomer in the step (1) into a reaction kettle according to a formula, introducing inert gas, and heating to 60 ℃ for reaction for 1 h; adding 0.2 part by weight of initiator, reacting for 4 hours at 65 ℃, adding 0.2 part by weight of initiator, reacting for 4 hours, and finally adding solvent to obtain the polyacrylic resin with the solid content of 27%.
Preparation example 4 preparation of polyacrylic resin
(1) Preparing the raw materials
Soft monomer: 80 parts by weight of butyl acrylate;
hard monomer: 2 parts by weight of vinyl acetate; 4 parts by weight of methyl acrylate; 6 parts by weight of methyl methacrylate;
crosslinking monomer: 8 parts by weight of acrylic acid;
initiator: 0.8 part by weight of azobisisobutyronitrile;
solvent: ethyl acetate, 130 parts by weight.
(2) Adding the soft monomer, the hard monomer and the crosslinking monomer in the step (1) into a reaction kettle according to a formula, introducing inert gas, and heating to 60 ℃ for reaction for 1 h; adding 0.4 weight part of initiator, reacting for 4 hours at 65 ℃, adding 0.4 weight part of initiator, reacting for 4 hours, and finally adding a solvent to obtain the polyacrylic resin with the solid content of 33%.
Preparation example 5 preparation of polyacrylic resin
The process was carried out as described in preparation example 1, except that the composition of the three monomers was changed while keeping the compounding ratio constant. Wherein, the butyl acrylate is replaced by the same amount of isooctyl acrylate; an equivalent amount of isobornyl acrylate instead of the combination of vinyl acetate, methyl acrylate and methyl methacrylate; an equal amount of methacrylic acid was substituted for acrylic acid.
Comparative preparation example 1 preparation of polyacrylic resin
The procedure was carried out with reference to preparation example 1, except that the total amount of the soft monomer, the hard monomer and the crosslinking monomer was kept constant, and the amounts of the monomer components therein were changed: 20 parts of soft monomer; 40 parts of hard monomer; crosslinking monomer: 40 parts by weight; the kind and internal proportion of the monomers are kept unchanged.
Example 1
Preparing raw materials
1. Functional coating raw material
Polyacrylic acid resin: 85 parts by weight of the polyacrylic resin obtained in preparation example 1;
antistatic agent: 1 part by weight of lithium bis (fluorosulfonyl) imide;
antioxidant: basf 168, 1 part by weight; 2 parts by weight of basf 1076;
curing agent: 2 parts by weight of glycerol methacrylate (solid content 5%);
solvent: toluene, 9 parts by weight.
2. Antistatic coating material
Conductive polymer: polymer of PEDOT/PSS, 50 parts by weight;
solvent: 20 parts of deionized water, and 30 parts of isopropanol.
3. Protective coating material
Functional components: 5 parts by weight of polysiloxane; 10 parts by weight of MQ resin; 25 parts of vinyl silicon crude rubber;
catalyst: 0.5 part by weight of platinum catalyst;
solvent: 58 parts of toluene;
inhibitor (B): 0.5 part by weight of sulfite;
anchoring agent: 0.5 part by weight of a silane coupling agent;
a crosslinking agent: 0.5 part by weight of hydrogen-containing silicone oil.
4. Protective layer: a transparent polyester film having a thickness of 40 μm.
5. Substrate layer: the thickness of the polyimide film was 100. mu.m.
6. A release material layer: PET film, thickness 40 μm.
(II) preparation of adhesive tape
Referring to the schematic structural diagram of fig. 1, the method of preparing the adhesive tape includes the steps of:
(1) stirring and mixing polyacrylic resin, an antistatic agent, an antioxidant and a curing agent according to a ratio to prepare a coating liquid of the functional coating, wherein the mixing temperature is 25 ℃, the mixing time is 40min, and the mixing speed is 250 rpm;
(2) mixing a polymer of PEDOT/PSS, deionized water and isopropanol to obtain a coating liquid of the antistatic coating, and coating the coating liquid of the antistatic coating on one surface of the substrate layer; the thickness of the antistatic coating is about 1 μm;
(3) coating the coating liquid of the functional coating obtained in the step (1) on the surface of the antistatic coating, and drying in an oven at 110 ℃; the thickness of the functional coating is about 50 μm;
(4) attaching the release material layer to the surface of the functional coating;
(5) mixing the raw materials of the protective coating, coating the mixture on the surface of the protective layer, and curing at the high temperature of 150 ℃ to form the protective coating; the thickness of the protective coating is about 15 μm;
(6) and (5) bonding the protective layer obtained in the step (5) to the other surface of the substrate layer to finally prepare the adhesive tape.
Example 2
Preparing raw materials
1. Functional coating raw material
Polyacrylic acid resin: 80 parts by weight of the polyacrylic resin obtained in preparation example 1;
antistatic agent: 2 parts by weight of lithium bis (fluorosulfonyl) imide;
antioxidant: basf 168, 1.5 parts by weight; 2.5 parts by weight of basf 1076;
curing agent: 3 parts by weight of glycerol methacrylate (solid content 5%);
solvent: toluene, 11 parts by weight.
2. Antistatic coating material
Conductive polymer: polymer of PEDOT/PSS, 40 parts by weight;
solvent: 30 parts of deionized water and 30 parts of isopropanol.
3. Protective coating material
Functional components: 3 parts of polysiloxane; MQ resin, 12 weight portions; 20 parts of vinyl silicon crude rubber;
catalyst: 0.3 part by weight of platinum catalyst;
solvent: 63.4 parts by weight of toluene;
inhibitor (B): 0.5 part by weight of sulfite;
anchoring agent: 0.6 part by weight of a silane coupling agent;
a crosslinking agent: 0.2 part by weight of hydrogen-containing silicone oil.
4. Protective layer: a transparent polyester film having a thickness of 25 μm.
5. Substrate layer: the polyimide film had a thickness of 150. mu.m.
6. A release material layer: PET film, thickness 25 μm.
(II) preparation of adhesive tape
Referring to the schematic structural diagram of fig. 1, the method of preparing the adhesive tape includes the steps of:
(1) mixing polyacrylic resin, an antistatic agent, an antioxidant and a curing agent according to a ratio to prepare a coating liquid of the functional coating, wherein the mixing temperature is 20 ℃, the mixing time is 50min, and the mixing speed is 200 rpm;
(2) mixing a polymer of PEDOT/PSS, deionized water and isopropanol to obtain a coating liquid of the antistatic coating, and coating the coating liquid of the antistatic coating on one surface of the substrate layer; the thickness of the antistatic coating is about 0.5 μm;
(3) coating the coating liquid of the functional coating obtained in the step (1) on the surface of the antistatic coating, and drying in an oven at 110 ℃; the thickness of the functional coating is about 75 μm;
(4) attaching the release material layer to the surface of the functional coating;
(5) mixing the raw materials of the protective coating, coating the mixture on the surface of the protective layer, and curing at the high temperature of 150 ℃ to form the protective coating; the thickness of the protective coating is about 5 μm;
(6) and (5) bonding the protective layer obtained in the step (5) to the other surface of the substrate layer to finally prepare the adhesive tape.
Example 3
Preparing raw materials
1. Functional coating raw material
Polyacrylic acid resin: 78 parts by weight of the polyacrylic resin obtained in preparation example 1;
antistatic agent: 1.5 parts by weight of lithium bis (fluorosulfonyl) imide;
antioxidant: basf 168, 1.5 parts by weight; 2.5 parts by weight of basf 1076;
curing agent: 2.5 parts by weight of glycerol methacrylate (solid content: 5%);
solvent: toluene, 14 parts by weight.
2. Antistatic coating material
Conductive polymer: polymer of PEDOT/PSS, 50 parts by weight;
solvent: 20 parts of deionized water, and 30 parts of isopropanol.
3. Protective coating material
Functional components: polysiloxane, 7 parts by weight; MQ resin, 6 parts by weight; 30 parts of vinyl silicon crude rubber;
catalyst: 0.7 part by weight of platinum catalyst;
solvent: 55.6 parts by weight of toluene;
inhibitor (B): 0.1 part by weight of sulfite;
anchoring agent: 0.1 part by weight of a silane coupling agent;
a crosslinking agent: 0.5 part by weight of hydrogen-containing silicone oil.
4. Protective layer: a transparent polyester film having a thickness of 50 μm.
5. Substrate layer: the polyimide film had a thickness of 50 μm.
6. A release material layer: PET film, 50 μm thick.
(II) preparation of adhesive tape
Referring to the schematic structural diagram of fig. 1, the method of preparing the adhesive tape includes the steps of:
(1) mixing polyacrylic resin, an antistatic agent, an antioxidant and a curing agent according to a ratio to prepare a coating liquid of the functional coating, wherein the mixing temperature is 30 ℃, the mixing time is 30min, and the mixing speed is 300 rpm;
(2) mixing a polymer of PEDOT/PSS, deionized water and isopropanol to obtain a coating liquid of the antistatic coating, and coating the coating liquid of the antistatic coating on one surface of the substrate layer; the thickness of the antistatic coating is about 2 μm;
(3) coating the coating liquid of the functional coating obtained in the step (1) on the surface of the antistatic coating, and drying in an oven at 110 ℃; the thickness of the functional coating is about 50 μm;
(4) attaching the release material layer to the surface of the functional coating;
(5) mixing the raw materials of the protective coating, coating the mixture on the surface of the protective layer, and curing at the high temperature of 150 ℃ to form the protective coating; the thickness of the protective coating is about 35 μm;
(6) and (5) bonding the protective layer obtained in the step (5) to the other surface of the substrate layer to finally prepare the adhesive tape.
EXAMPLE 4 group
This set of examples serves to illustrate the effect of ingredients in functional coatings.
This set of examples was performed as in example 1, except that the ingredients and the proportions of the raw materials in the functional coating were varied, respectively, while maintaining the total weight of the raw materials. Specifically, the method comprises the following steps:
example 4 a: an equal amount of the polyacrylic acid resin obtained in preparation example 2 was substituted for the polyacrylic acid resin of preparation example 1;
example 4 b: an equal amount of the polyacrylic acid resin obtained in preparation example 3 was substituted for the polyacrylic acid resin of preparation example 1;
example 4 c: an equal amount of the polyacrylic acid resin obtained in preparation example 4 was substituted for the polyacrylic acid resin of preparation example 1;
example 4 d: an equal amount of the polyacrylic acid resin obtained in preparation example 5 was substituted for the polyacrylic acid resin of preparation example 1;
finally, the adhesive tapes are respectively obtained.
EXAMPLE 5 group
This set of examples serves to illustrate the effect of the distribution ratio in functional coatings.
This set of examples was performed as in example 1, except that the ratios of the raw materials in the functional coatings were varied, respectively, while keeping the total weight of the raw materials constant. Specifically, the method comprises the following steps:
example 5 a: 90 parts by weight of polyacrylic resin; 0.5 part by weight of antistatic agent; 6 parts of antioxidant; 1 part by weight of curing agent; 2.5 parts by weight of a solvent;
example 5 b: polyacrylic acid resin: 72 parts by weight; 3 parts of antistatic agent; 1 part by weight of antioxidant; 5 parts of curing agent; solvent, 19 parts by weight.
Comparative example 1
Reference was made to example 1, except that the polyacrylic acid resin of preparation example 1 was replaced with an equal amount of the polyacrylic acid resin obtained in comparative preparation example 1.
Comparative example 2
Reference is made to example 1, except that no antistatic agent is added.
Comparative example 3
Reference was made to example 1, except that no antioxidant was added.
Comparative example 4
Reference is made to example 1, except that the total amount of the functional coating raw material is kept constant, and the amounts of the components are adjusted: 50 parts of polyacrylic resin; 5 parts by weight of an antistatic agent; 10 parts of antioxidant; 10 parts of curing agent; solvent, 25 parts by weight.
Test example
(1) The 180 ° peel force of the tapes provided in the examples and comparative examples, including the normal temperature peel force, the peel force after 5min at 260 ℃, was tested with reference to the GB/T2792-2014 standard, and the results are reported in table 1.
(2) The antistatic values of the tapes provided in the examples and comparative examples were tested using a Quick499D static tester and the results are reported in table 1.
(3) The haze and transmittance of the tapes provided in examples and comparative examples were measured using a WGT-S transmittance/haze meter, and the results are recorded in table 1.
(4) The tapes provided in the examples and comparative examples were tested for tensile strength with reference to the GB/T528-2009 standard.
(5) The transmittance properties of the 940mm and 525mm bands were measured using an LS182 solar film tester and the results are reported in table 1.
TABLE 1
As can be seen from Table 1, the adhesive tape prepared by the invention has no adhesive residue in the normal test process, has stable viscosity, does not affect the electrostatic property of the product after high-temperature processing, has no adhesive residue after tearing, and has excellent tensile strength and better light transmittance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention are included in the present invention.
Claims (10)
1. A tape coating liquid composition characterized by comprising a polyacrylic resin, an antistatic agent and an antioxidant; the comonomer of the polyacrylic resin comprises a soft monomer, a hard monomer and a crosslinking monomer;
wherein, based on the total weight of the polyacrylic resin, the content of the soft monomer is 50-90 wt%, the content of the hard monomer is 5-25 wt%, and the content of the crosslinking monomer is 5-25 wt%.
2. The composition of claim 1, wherein the soft monomer is present in an amount of 60 to 80 wt.%, the hard monomer is present in an amount of 8 to 20 wt.%, and the crosslinking monomer is present in an amount of 8 to 20 wt.%, based on the total weight of the polyacrylic resin.
3. The composition of claim 1, wherein the soft monomer is selected from one or more of butyl acrylate, isooctyl acrylate, and ethyl acrylate; preferably butyl acrylate;
preferably, the hard monomer is selected from one or more of vinyl acetate, methyl acrylate, methyl methacrylate and isobornyl acrylate; more preferably a combination of vinyl acetate, methyl acrylate and methyl methacrylate;
preferably, the crosslinking monomer is selected from one or more of acrylic acid, methacrylic acid, beta-carboxyethyl acrylate, hydroxyethyl acrylate and hydroxypropyl acrylate; acrylic acid is more preferred.
4. The composition of any of claims 1-3, wherein the antistatic agent is a lithium salt selected from one or more of lithium bis-fluorosulfonylimide, lithium difluoro-oxalato-borate, and lithium trifluoromethanesulfonate;
preferably, the antioxidant is a hindered phenol antioxidant;
preferably, the composition further comprises a curing agent, wherein the curing agent is an epoxy curing agent;
preferably, the composition further comprises a solvent;
preferably, the content of the polyacrylic acid resin is 70-90 wt%, the content of the antistatic agent is 0.5-3 wt%, the content of the antioxidant is 1-6 wt%, the content of the curing agent is 1-5 wt%, and the content of the solvent is 5-20 wt%, based on the total weight of the composition.
5. A method for preparing the coating liquid composition for adhesive tape of any one of claims 1 to 4, comprising the steps of:
(1) under inert atmosphere and heating condition, carrying out first contact on a soft monomer, a hard monomer and a crosslinking monomer in the adhesive tape coating liquid composition;
(2) carrying out second contact on the material obtained in the step (1) and a first initiator, and carrying out third contact on the material after the second contact and a second initiator;
(3) and (3) carrying out fourth contact on the material obtained in the step (2) with an antistatic agent, an antioxidant and a curing agent.
6. A tape coating fluid comprising or produced from the composition of any one of claims 1 to 4 or the composition obtained by the process of claim 5.
7. The adhesive tape is characterized by comprising a base material layer and a functional coating coated on the surface of the base material layer; the functional coating layer is prepared from the adhesive tape coating liquid of claim 6 or the composition of any one of claims 1 to 4.
8. The tape of claim 7, wherein an antistatic coating is further included between the substrate layer and the functional coating;
preferably, the surface of the substrate layer, which is far away from the functional coating layer, is coated with a protective coating, and the surface of the protective coating, which is far away from the substrate layer, is covered with a protective layer;
preferably, the surface of the functional coating layer on the side far away from the substrate layer is covered with a release material layer.
9. The tape of claim 6 wherein the antistatic coating comprises one or more of a polymer of PEDOT/PSS, an internal quaternary ammonium salt, and a fatty amine ethylene oxide adduct;
preferably, the protective coating comprises one or more of a polysiloxane, an MQ resin, a vinyl silicone gum, a catalyst, a solvent, an inhibitor, an anchoring agent, and a crosslinking agent;
preferably, the transmittance of the base material layer is more than or equal to 15 percent, and the haze is less than or equal to 1 percent.
10. A process for producing the adhesive tape as defined in any one of claims 7 to 9, which comprises carrying out the following steps starting from the adhesive tape coating liquid composition as defined in any one of claims 1 to 4:
(a) preparing a coating liquid for obtaining a functional coating by using the adhesive tape coating liquid composition as a raw material;
(b) coating the coating liquid of the antistatic coating on the surface of the substrate layer;
(c) coating the coating liquid of the functional coating obtained in the step (a) on the surface of the antistatic coating, and drying;
(d) attaching the release material layer to the surface of the functional coating;
(e) and coating the protective coating on the surface of the protective layer, drying and attaching the protective coating to the surface of the base material layer.
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| CN115069491A (en) * | 2022-06-06 | 2022-09-20 | 黄山市天马科技有限公司 | Gluing method and gluing device for high-temperature-resistant adhesive tape |
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