CN108546539A - A kind of weatherability two-component polyurethane adhesive and solar cell backboard - Google Patents
A kind of weatherability two-component polyurethane adhesive and solar cell backboard Download PDFInfo
- Publication number
- CN108546539A CN108546539A CN201810331935.6A CN201810331935A CN108546539A CN 108546539 A CN108546539 A CN 108546539A CN 201810331935 A CN201810331935 A CN 201810331935A CN 108546539 A CN108546539 A CN 108546539A
- Authority
- CN
- China
- Prior art keywords
- weatherability
- hydroxyl
- weight
- parts
- component polyurethane
- 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
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 53
- 239000000853 adhesive Substances 0.000 title claims abstract description 50
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 29
- 239000004814 polyurethane Substances 0.000 title claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 42
- 229920005862 polyol Polymers 0.000 claims abstract description 42
- 150000003077 polyols Chemical class 0.000 claims abstract description 37
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 25
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 22
- -1 isocyanate compound Chemical class 0.000 claims abstract description 21
- 239000012948 isocyanate Substances 0.000 claims abstract description 19
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 16
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 15
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 12
- 239000011229 interlayer Substances 0.000 claims abstract description 5
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 4
- 150000002148 esters Chemical class 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 20
- 229920001610 polycaprolactone Polymers 0.000 claims description 12
- 239000004632 polycaprolactone Substances 0.000 claims description 12
- 239000000178 monomer Substances 0.000 claims description 11
- 239000013638 trimer Substances 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 7
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 150000005846 sugar alcohols Polymers 0.000 claims description 5
- 230000009477 glass transition Effects 0.000 claims description 4
- 229920006267 polyester film Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 3
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 claims 4
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims 1
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 claims 1
- 210000002469 basement membrane Anatomy 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 abstract description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 22
- 239000010408 film Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 8
- 230000032683 aging Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 125000005442 diisocyanate group Chemical group 0.000 description 5
- 230000007774 longterm Effects 0.000 description 5
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 4
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 4
- 238000007719 peel strength test Methods 0.000 description 4
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 238000010189 synthetic method Methods 0.000 description 4
- RUMACXVDVNRZJZ-UHFFFAOYSA-N 2-methylpropyl 2-methylprop-2-enoate Chemical compound CC(C)COC(=O)C(C)=C RUMACXVDVNRZJZ-UHFFFAOYSA-N 0.000 description 3
- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 3
- 150000001721 carbon Chemical group 0.000 description 3
- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 description 3
- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 description 3
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 3
- 210000004379 membrane Anatomy 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- NQSLZEHVGKWKAY-UHFFFAOYSA-N 6-methylheptyl 2-methylprop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C(C)=C NQSLZEHVGKWKAY-UHFFFAOYSA-N 0.000 description 2
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical group CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical class OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 2
- NZIDBRBFGPQCRY-UHFFFAOYSA-N octyl 2-methylprop-2-enoate Chemical compound CCCCCCCCOC(=O)C(C)=C NZIDBRBFGPQCRY-UHFFFAOYSA-N 0.000 description 2
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229960004063 propylene glycol Drugs 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 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 description 1
- MTZUIIAIAKMWLI-UHFFFAOYSA-N 1,2-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC=C1N=C=O MTZUIIAIAKMWLI-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- LYWVNPSVLAFTFX-UHFFFAOYSA-N 4-methylbenzenesulfonate;morpholin-4-ium Chemical compound C1COCCN1.CC1=CC=C(S(O)(=O)=O)C=C1 LYWVNPSVLAFTFX-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DQFBYFPFKXHELB-UHFFFAOYSA-N Chalcone Natural products C=1C=CC=CC=1C(=O)C=CC1=CC=CC=C1 DQFBYFPFKXHELB-UHFFFAOYSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- 230000000655 anti-hydrolysis Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 235000005513 chalcones Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- JBFHTYHTHYHCDJ-UHFFFAOYSA-N gamma-caprolactone Chemical group CCC1CCC(=O)O1 JBFHTYHTHYHCDJ-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 230000034659 glycolysis Effects 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical class OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229940119545 isobornyl methacrylate Drugs 0.000 description 1
- 229960002725 isoflurane Drugs 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 1
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- DIVDFFZHCJEHGG-UHFFFAOYSA-N oxidopamine Chemical compound NCCC1=CC(O)=C(O)C=C1O DIVDFFZHCJEHGG-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6225—Polymers of esters of acrylic or methacrylic acid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a kind of weatherability two-component polyurethane adhesives, the host agent of described adhesive is made of hydroxyl-terminated polyurethane prepolymer A and polyacrylate polyol B, the hydroxyl-terminated polyurethane prepolymer A polymerize to obtain by polyester polyol with two functional isocyanates, and curing agent is polyfunctional isocyanate compound.Hydroxyl-terminated polyurethane prepolymer A proportions are 50 70 parts by weight in the host agent, and polyacrylate polyol B proportions are 30 50 parts by weight, and the equivalent proportion NCO/OH of the isocyanate group in the hydroxyl and curing agent in host agent is 0.5 2.0.Basement membrane interlayer can be made to realize high-adhesion using invention adhesives, and can still keep good adhesive strength after tropical deterioration is tested.
Description
Technical field
The present invention relates to still can be with a kind of weatherability of excellent adhesive effect after exposure aging under long-term wet heat condition
Two-component polyurethane adhesive, the technology can be applied to solar cell backboard or other open-air industrial fields.
Background technology
Solar energy is following most cleaning, the safe and reliable energy.Photovoltaic industry is increasingly becoming in the world after IT, micro- electricity
The industry of another explosive growth after sub- industry.Therefore solar cell, can be used for too at least 25 years outdoor application time
The plural layers of positive energy battery back-sheet need to have enough weatherabilities.And each compound adhesive used of structure interlayer must be simultaneously
Have the comprehensive performances such as good application property, high bond strength, high-fire resistance, ultraviolet aging resistance and long-term moisture-proof pyrohydrolysis
Advantage can just meet the field requirement.
A kind of Solvent type double-component polyurethane adhesive is arrived involved in patent CN102643622A, component A is polyhydroxy
Unsaturated-resin, glass transition temperature are 20-50 DEG C, and B component is to be obtained through addition reaction with diisocyanate by polyalcohol
- NCO blocked prepolymers, using this method obtain adhesive for polyurethane with good weatherability it is strong, but high-vitrification turn
The adhesive of temperature causes compound initial bonding strength to decline in the wetability that can reduce film to a certain degree, compound and wound
Easily occurs relative storey displacement in journey.
A kind of solar cell backboard nothing is disclosed in other patents such as CN105524588A based on prepolymer
Solvent compound binding agent, the solvent-free volatilization of the technology, and the peel strength between binder and base material can be improved, and through double 85
PET/PVDF splitting power is positively retained at 4.5N/1.5cm after experiment 2000h, in order to make adhesive finally keep good painting
Cloth viscosity using polyether polyol and isocyanates carries out that end-NCO prepolymers, and and polyether polyols are obtained by the reaction in the technology
Alcohol, small molecule glycol and anti-hydrolysis agent form gluing agent prescription, since polyether polyol and polyester polyol, acrylate are polynary
Alcohol is more soft compared to its strand and polarity is lower, so as to cause adhesive cured glue layer strength reduction, therefore, formula
Polyether polyols alcohol content increases the peel strength that can reduce system to a certain extent in composition.
After applicant of the present invention is by furtheing investigate the above problem, finds using polyester polyol and gather in oneself
Ester polyol combines the excellent polyacrylate polyol of humidity resistance with diisocyanate cpd prepolymer obtained by the reaction
As host agent, and the adhesive formula formed using polyisocyanic acid ester polymer as curing agent has excellent initial stripping strong
Degree can realize high-adhesion in basement membrane interlayer after curing, and can still keep good bonding strong after tropical deterioration is tested
Degree reduces cost, energy saving advantage to improve the yield rate of backboard production, and have.
Invention content
The purpose of the invention is to provide a kind of weatherability two-component polyurethane adhesive, to solve existing solar energy
Backboard is poor with adhesive initial adhesion, heat resistance is insufficient, the water-disintegrable difference of wet-heat resisting defect.
Technical scheme applied to solve the technical problem is:
A kind of weatherability two-component polyurethane adhesive, including host agent and curing agent, the host agent is by 50-70 parts by weight end
Hydroxyl polyurethane prepolymer A and 30-50 parts by weight of polypropylene acid esters polyalcohol B compositions, the curing agent are multifunctional isocyanic acid
Ester, the hydroxyl-terminated polyurethane prepolymer A is polymerize to obtain by polyester polyol with two functional isocyanates, wherein the polyester is more
50-80 parts by weight polycaprolactone polyols are further included in first alcohol;The two functional isocyanates proportion is 5-10 weights
Measure part.
Above-mentioned weatherability two-component polyurethane adhesive, the polyacrylate polyol B are by carbon atom number in structure
(methyl) acrylate monomer not less than 4 polymerize to obtain, wherein relative in 100 parts by weight of polypropylene acid esters polyalcohol B,
It is 1-10 parts by weight, preferably 3-8 parts by weight containing hydroxyl (methyl) acrylate monomer proportion.
The Mw of above-mentioned weatherability two-component polyurethane adhesive, the polycaprolactone polyol is 500-2500, and hydroxyl value is
45-140mgKOH/g;The two functional isocyanates compound is selected from isoflurane chalcone diisocyanate, diphenyl methane -4,4 ' -
At least one of diisocyanate, hexamethylene diisocyanate.
The glass transition temperature of above-mentioned weatherability two-component polyurethane adhesive, the polyacrylate polyol B is
0-20 DEG C, preferably 5-15 DEG C.
The Mw of above-mentioned weatherability two-component polyurethane adhesive, the polyacrylate polyol B is 20000-100000.
Above-mentioned weatherability two-component polyurethane adhesive, the curing agent are polyfunctional isocyanate, can be selected from being based on first
Phenylene diisocyanate tripolymer, '-diphenylmethane diisocyanate tripolymer, isophorone diisocyanate trimer, hexa-methylene
One or more mixtures in diisocyanate trimer.
Above-mentioned weatherability two-component polyurethane adhesive, the hydroxyl-terminated polyurethane prepolymer A and polyacrylate are polynary
The equivalent proportion NCO/OH of isocyanate group is 0.5-2.0 in hydroxyl and curing agent in the host agent of alcohol B compositions.
Invention adhesives are used for solar cell backboard, and structure is:
A kind of solar cell backboard, by the film group selected from one or more of polyester film, fluororesin film, polyolefin film
At, each interlayer using above-mentioned weatherability two-component polyurethane adhesive, it is compound after under the conditions of 40-50 DEG C, 2-4 days systems of curing
.
Advantageous effect
Weatherability two-component polyurethane adhesive provided by the invention is by using hydroxyl-terminated polyurethane prepolymer A and poly- third
The mixture of olefin(e) acid ester polyol B obtains adhesive formula as host agent, matching polyfunctional isocyanate as curing agent.Have
Excellent base material adaptability, can be used for the Film laminated of one or more of polyester film, fluororesin film, polyolefin film;After solidification
It can form the highly cross-linked reticular structure with urethane bond, thus can provide composite membrane excellent ripe using the adhesive
Change peel strength, film product can effectively reduce solar energy through 40-50 DEG C, 2-4 days peel strength >=8.0N/15mm after curing
Battery back film delamination risk;
Since in long-term hygrothermal environment hydrolysis easily occurs for ester bond, to reduce effective adhesive property of adhesive,
Therefore use polyacrylate polyol and hydroxyl-terminated polyurethane prepolymer A as host agent in the adhesive designed in the present invention
Formula, wherein polyacrylate polyol main chain are Long carbon chain structure, and in hydroxyl-terminated polyurethane prepolymer also include main chain section
The low polycaprolactone polyol ingredient of middle bond content, thus the glued membrane that the adhesive obtained in the present invention is formed after curing can
Make composite membrane product that there is permanently effective moisture-proof thermo-environment adaptability, it is strong through HAST50 hours and bis- " 85 " stripping in 2000 hours
Degree may remain in 6N/15mm or more.
Specific implementation mode
Host agent of the present invention is polynary by 50-70 parts by weight hydroxyl-terminated polyurethane prepolymer A and 30-50 parts by weight of polypropylene acid esters
Alcohol B compositions, the curing agent are polyfunctional isocyanate.The hydroxyl-terminated polyurethane prepolymer A is by polyester polyol and two officials
Energy isocyanate polymeric obtains, wherein the polyester polyol further includes 50-80 parts by weight polycaprolactone polyols;It is described
Two functional isocyanate proportions are 5-10 parts by weight.
Polyester polyol of the present invention can be polymerize to obtain by aromatic series or aliphatic carboxylic acid with aliphatic polyol, the fragrance
Race or aliphatic carboxylic acid can be selected from phthalic acid, M-phthalic acid, terephthalic acid (TPA), succinic acid, adipic acid, sebacic acid
One or more mixtures;The aliphatic polyol can be selected from ethylene glycol, diethylene glycol, 1,2- propylene glycol, 1,4- butanediols,
One or more mixtures in 1,4-CHDM, 1,6- hexylene glycols, neopentyl glycol, trimethylolpropane, in order to carry
The weatherability of high adhesive should further include polycaprolactone polyol, the polycaprolactone polyol in the polyester polyol
Alcohol can pass through ethylene glycol, diethylene glycol, 1,2- propylene glycol, 1,4- butanediols, 1,6-HD, neopentyl glycol, trihydroxy methyl third
One or more mixtures in alkane cause 6-caprolactone ring-opening polymerisation and form.The Mw of the polycaprolactone polyol is 500-
2500, hydroxyl value 45-140mgKOH/g, preferably Mw are 1000-2000, hydroxyl value 56-110mgKOH/g.
The two functional isocyanate compounds prepared used in hydroxyl-terminated polyurethane prepolymer A can be selected from toluene diisocyanate
It is one or more mixed in acid esters, '-diphenylmethane diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate
Close object.
The polyacrylate polyol B is that (methyl) acrylate monomer by carbon atom number in structure not less than 4 is poly-
Conjunction obtains, relative in 100 parts by weight of polypropylene acid esters polyalcohol B, shared by hydroxyl (methyl) acrylate monomer
Ratio is 1-10 parts, preferably 3-8 parts by weight.
Wherein, carbon atom number not less than 4 (methyl) acrylate monomer can be selected from methyl acrylate, ethyl acrylate,
Butyl acrylate, isobutyl acrylate, glycidyl acrylate, the just own ester of acrylic acid, cyclohexyl acrylate, acrylic acid are just pungent
Ester, Isooctyl acrylate monomer, acrylic acid-2-ethyl caproite, isobornyl acrylate, lauryl acrylate, methyl methacrylate,
Ethyl methacrylate, butyl methacrylate, Isobutyl methacrylate, glycidyl methacrylate, metering system
The just own ester of acid, cyclohexyl methacrylate, n octyl methacrylate, isooctyl methacrylate, methacrylic acid -2- ethyls
The mixture of one or more monomers in own ester, isobornyl methacrylate, lauryl methacrylate.It is excellent in the present invention
Select methyl acrylate, ethyl acrylate, butyl acrylate, isobutyl acrylate, glycidyl acrylate, acrylic acid just oneself
Ester, cyclohexyl acrylate, n-octyl, Isooctyl acrylate monomer, acrylic acid-2-ethyl caproite, methyl methacrylate, first
Base ethyl acrylate, butyl methacrylate, Isobutyl methacrylate, glycidyl methacrylate, methacrylic acid
Just own ester, cyclohexyl methacrylate, n octyl methacrylate, isooctyl methacrylate, methacrylic acid -2- ethyl hexyls
More preferably include methyl acrylate, ethyl acrylate, butyl acrylate, isobutyl acrylate, acrylic acid contracting at least two in ester
Water glyceride, the just own ester of acrylic acid, cyclohexyl acrylate, methyl methacrylate, ethyl methacrylate, methacrylic acid fourth
In ester, Isobutyl methacrylate, glycidyl methacrylate, the just own ester of methacrylic acid, cyclohexyl methacrylate
At least two monomers mixture.
2-Hydroxy ethyl acrylate, acrylic acid -3- hydroxyls third are can be selected from containing hydroxyl (methyl) acrylate monomer
Ester, acrylic acid -4- hydroxybutyls, methacrylic acid -2- hydroxy methacrylates, methacrylic acid -3- hydroxy propyl esters, methacrylic acid -
The mixture of one or more monomers in 4- hydroxybutyls.
The glass transition temperature (Tg) of the polyacrylate polyol B is 0~20 DEG C, preferably 5~15 DEG C;Mw is
20000-100000, preferably 40000-80000.
In 100 parts by weight host agents, when hydroxyl-terminated polyurethane prepolymer A proportions are 50-70 parts by weight, polyacrylic acid
When ester polyol B proportions are 30-50 parts by weight, adhesive composition can be made to keep good to film interface cohesive force
Excellent humidity resistance is played simultaneously, even if can also realize good adhesive strength by outdoor long-term exposure.
The curing agent is polyfunctional isocyanate, be can be selected from based on toluene diisocyanate trimer, diphenyl-methane two
One kind or more in isocyanate trimer, isophorone diisocyanate trimer, hexamethylene diisocyanate trimer
The mixture of kind, preferably one kind in isophorone diisocyanate trimer and hexamethylene diisocyanate trimer or two
Person's mixture.
Hydroxyl included in the host agent of the hydroxyl-terminated polyurethane prepolymer A and polyacrylate polyol B compositions with
The equivalent proportion NCO/OH of isocyanate group in curing agent is 0.5-2.0, and preferably NCO/OH is 1.0-1.5.
For more specific description technical scheme of the present invention, further description will be unfolded by embodiment below, but
Listed embodiment only plays illustration, and is not intended to limit the scope of the present invention.
Embodiment
The synthetic method of hydroxyl-terminated polyurethane prepolymer A1 is as follows:
40 parts by weight Dynacoll 7250 and 50 parts by weight PD1-10 are weighed by inventory in table 1, addition is stirred equipped with machinery
It mixes, in the reaction kettle of thermometer, reflux condensing tube and nitrogen protection, and the ethyl acetate of 100 weight deals is added, be heated to
75 DEG C, after all dissolution of raw material, the Wannate-MDI50 of 10 parts by weight is added drop-wise in 1 hour in reaction system, is kept the temperature
The reaction was complete after 2 hours, is down to room temperature discharging, obtains the resin solution (solid content of hydroxyl-terminated polyurethane prepolymer A1
50wt%).
It feeds intake by each weight of material part in table 1, uses synthetic method system identical with hydroxyl-terminated polyurethane prepolymer A1
Standby to obtain the resin solution of hydroxyl-terminated polyurethane prepolymer A2-A4, table 1 show the throwing of hydroxyl-terminated polyurethane prepolymer A1-A4
Doses.
Table 1
The details of each ingredient is as follows in table 1:
Dynacoll 7250 (trade name):Win the polyester polyol of wound industrial group manufacture, Mw=5500, hydroxyl value=18-
24mgKOH/g;
Dynacoll 7320 (trade name):Win the polyester polyol of wound industrial group manufacture, Mw=3500, hydroxyl value=27-
34mgKOH/g;
PD1-10 (trade name):The polycaprolactone polyol of BASF AG's manufacture, Mw=1000, hydroxyl value=108-
116mgKOH/g;
PD1-20 (trade name):The polycaprolactone polyol of BASF AG's manufacture, Mw=2000, hydroxyl value=53-
59mgKOH/g;
220EC (trade name):The polycaprolactone polyol of Daicel company manufacture, Mw=2000, hydroxyl value=56mgKOH/g
Wannate-MDI50:The diisocyanate cpd of Yantai Wanhua chemistry manufacture.
The synthetic method of polyacrylate polyol B1 is as follows:
Equipped with mechanical agitation, thermometer, reflux condensing tube reaction kettle in, by weight be added 100 parts of ethyl acetate,
75 DEG C are heated to, by 33 parts by weight of methylmethacrylate, 50 parts by weight of acrylic acid N-butyls, 14 weight parts of methacrylic acid rings
Own ester and 3 weight parts of methacrylic acid hydroxyl ethyl esters are continuously dripped in 5 hours after mixing with 1.1 parts by weight azodiisobutyronitriles
It is added in reaction system, heat preservation is down to room temperature after 3 hours, and it is 41000 to obtain yields, hydroxyl value 13mgKOH/g, vitrifying
The resin solution for the polyacrylate polyol B1 that transition temperature is 2 DEG C, solid content 50wt%.
It feeds intake by each weight of material part in table 2, is prepared using synthetic method identical with polyacrylate polyol B1
Obtain the resin solution of polyacrylate polyol B2-B4, table 2 show polyacrylate polyol B1-B4 inventory and
Product related property parameter.
Table 2
The manufacture of host agent in embodiment:
By the parts by weight of each component in table 3, by the resin solution (50wt%) of 69 parts of hydroxyl-terminated polyurethane prepolymer A1 with
The resin solution (50wt%) of 31 parts of polyacrylate polyol B1 is sufficiently mixed, and obtains host agent 1.Host agent 2-6 is led according to preparation
1 same method of agent obtains.
Table 3
Embodiment 1-6
Embodiment 1-6 adhesive therefor formulas are carried out according to parts by weight shown in table 4 to prepare, and are evaluated using properties of sample
Method is tested.Wherein, curing agent C is that the hexamethylene diisocyanate trimer class of Beyer Co., Ltd's manufacture cures in table 4
Agent N3300 (trade name), NCO content 21.8wt%, solid content 100%.
Properties of sample evaluation method:
1, the preparation of test sample
The pet film (PET) and 22.5 μm of PVDF thin films that the base material used is 125 μm pass through
Sided corona treatment is crossed, the binder solution configured is coated in PET film, glue-spread 20-25g/m2, 80 DEG C of dryings 2 minutes,
PVDF thin film is fully bonded with PET film, obtains compound print.
2, initial bonding strength is tested
Compound print samples the peel strength test of progress immediately after the completion of preparing, with reference to standard GB/T/T 2790-
1995《180 ° of peeling strength test method flexible materials of adhesive are to rigid material》In method in peeling rate 300mm/
It is tested under conditions of min, batten width 15mm.
3, peel strength test is cured
The peel strength test that compound print carries out after being cured under the conditions of 50 DEG C, 48 hours, with reference to standard GB/T/
T2790-1995《180 ° of peeling strength test method flexible materials of adhesive are to rigid material》In method in peeling rate
It is tested under conditions of 300mm/min, batten width 15mm.
4, HAST ageing-resistant performances are tested
1) HAST50 hours peel strengths:After print after curing is placed 50 hours under 121 DEG C, 100% environment of humidity
The peel strength test of progress, with reference to standard GB/T/T 2790-1995《180 ° of peeling strength test methods of adhesive are flexible
Material is to rigid material》In method tested under conditions of peeling rate 300mm/min, batten width 15mm.
2) HAST100 hours it is apparent:Print after curing is seen after being placed 100 hours under 121 DEG C, 100% environment of humidity
It is apparent to examine sample, if the bad phenomenons such as shrinkage, blistering, delamination occurs in bonding part.
5, long-term high temperature and humidity resistance test
It is after curing according to being used under the conditions of 85 of the requirement in standard GB/T/T2423.3-2006 DEG C, humidity 85%
Print is evaluated, and sample standing time is 2000 hours.
Table 4
Comparative example 1-3
A 1-3 adhesive therefor formulas are compared by the parts by weight of each component in table 5 to prepare, and use and implementation
The same properties of sample evaluation method of example is tested.
Table 5
It is in conjunction with data in table 3 and table 4 it is found that pre- containing hydroxyl-terminated polyurethane simultaneously in two-component polyurethane adhesive host agent
Polymers A and polyacrylate polyol B, thus, two-component polyurethane adhesive provided in embodiment have it is excellent just
Beginning peel strength, curing peel strength and wet-hot aging performance, after test in 2000 hours under the conditions of harsh double 85, still
It can keep good adhesive property.
According to comparative example 1-3 in table 5 the results show that comparative example 1 and comparative example 2 include the poly- ammonia of terminal hydroxy group when different in being formulated
Ester prepolymer A and polyacrylate polyol B, thus initial bonding strength is relatively low, and it is strong to have excellent curing stripping
Degree or ageing-resistant performance.And the host agent and curing agent ratio of comparative example 3 are not within the scope of the claims, compared with embodiment effect
Initial bonding strength, curing peel strength and wet-hot aging performance are poor.
Two-component polyurethane adhesive provided by the invention can be used in polyester film, fluororesin film, polyolefin film one kind with
The bonding of upper film, gained joint product not only has excellent initial bonding strength, but also film product is through 40-50 DEG C, 2-4 days
Peel strength >=8.0N/15mm after curing, and there is excellent wet-hot aging performance, it is small through HAST50 hours and bis- " 85 " 2000
When peel strength may remain in 6.0N/15mm or more.
Claims (8)
1. a kind of weatherability two-component polyurethane adhesive, including host agent and curing agent, it is characterised in that:The host agent is by 50-
70 parts by weight hydroxyl-terminated polyurethane prepolymer A and 30-50 parts by weight of polypropylene acid esters polyalcohol B compositions, the curing agent is more
Functional isocyanate, the hydroxyl-terminated polyurethane prepolymer A are polymerize to obtain by polyester polyol with two functional isocyanates,
In, 50-80 parts by weight polycaprolactone polyols are further included in the polyester polyol;Shared by two functional isocyanate
Ratio is 5-10 parts by weight.
2. weatherability two-component polyurethane adhesive according to claim 1, it is characterised in that:The polyacrylate is polynary
Alcohol B is that (methyl) acrylate monomer by carbon atom number in structure not less than 4 polymerize to obtain, wherein relative to 100 parts by weight
It is 1-10 parts by weight, preferably 3- containing hydroxyl (methyl) acrylate monomer proportion in polyacrylate polyol B
8 parts by weight.
3. weatherability two-component polyurethane adhesive according to claim 1, it is characterised in that:The polycaprolactone polyol
Mw be 500-2500, hydroxyl value 45-140mgKOH/g;The two functional isocyanates compound is selected from two isocyanide of isophorone
At least one of acid esters, diphenyl methane -4,4 '-diisocyanate, hexamethylene diisocyanate.
4. weatherability two-component polyurethane adhesive according to claim 1, it is characterised in that:The polyacrylate is polynary
The glass transition temperature of alcohol B is 0-20 DEG C, preferably 5-15 DEG C.
5. weatherability two-component polyurethane adhesive according to claim 1, it is characterised in that:The polyacrylate is polynary
The Mw of alcohol B is 20000-100000.
6. weatherability two-component polyurethane adhesive according to claim 1, it is characterised in that:The curing agent is multifunctional
Isocyanates can be selected from different based on toluene diisocyanate trimer, '-diphenylmethane diisocyanate tripolymer, isophorone two
One or more mixtures in cyanate tripolymer or hexamethylene diisocyanate trimer.
7. weatherability two-component polyurethane adhesive according to claim 1, it is characterised in that:The hydroxyl-terminated polyurethane is pre-
The equivalent proportion NCO/OH of isocyanate group in hydroxyl and curing agent in the host agent of polymers A and polyacrylate polyol B compositions
For 0.5-2.0.
8. a kind of solar cell backboard, it is characterised in that:By in polyester film, fluororesin film, polyolefin film it is a kind of with
On film composition, each interlayer use as claim 1-7 any one of them weatherability two-component polyurethane adhesives it is compound
Afterwards under the conditions of 40-50 DEG C, cures 2-4 days and be made.
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CN111783922A (en) * | 2020-06-09 | 2020-10-16 | 苏州赛伍应用技术股份有限公司 | Radio frequency tag, preparation method thereof and photovoltaic module |
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CN112226189A (en) * | 2020-09-18 | 2021-01-15 | 汕头市鲁汕化工原料有限公司 | Double-component water-based adhesive |
CN112708388A (en) * | 2021-01-08 | 2021-04-27 | 中国乐凯集团有限公司 | Adhesive for lithium battery packaging |
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