WO2013031752A1 - 太陽電池モジュールの製造方法、太陽電池裏面封止シートおよび太陽電池モジュール - Google Patents
太陽電池モジュールの製造方法、太陽電池裏面封止シートおよび太陽電池モジュール Download PDFInfo
- Publication number
- WO2013031752A1 WO2013031752A1 PCT/JP2012/071650 JP2012071650W WO2013031752A1 WO 2013031752 A1 WO2013031752 A1 WO 2013031752A1 JP 2012071650 W JP2012071650 W JP 2012071650W WO 2013031752 A1 WO2013031752 A1 WO 2013031752A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- solar cell
- cell module
- resin
- film
- silicon oxide
- Prior art date
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000000576 coating method Methods 0.000 claims abstract description 44
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 43
- 239000011248 coating agent Substances 0.000 claims abstract description 36
- 239000003566 sealing material Substances 0.000 claims abstract description 28
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 23
- 230000007062 hydrolysis Effects 0.000 claims abstract description 17
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 17
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims description 95
- 239000011347 resin Substances 0.000 claims description 95
- 238000000034 method Methods 0.000 claims description 25
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 17
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 239000010419 fine particle Substances 0.000 claims description 6
- UQMOLLPKNHFRAC-UHFFFAOYSA-N tetrabutyl silicate Chemical group CCCCO[Si](OCCCC)(OCCCC)OCCCC UQMOLLPKNHFRAC-UHFFFAOYSA-N 0.000 claims description 4
- 239000001023 inorganic pigment Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 21
- 230000001070 adhesive effect Effects 0.000 abstract description 21
- 239000010408 film Substances 0.000 description 100
- 239000010410 layer Substances 0.000 description 97
- -1 polyethylene terephthalate Polymers 0.000 description 36
- 239000002585 base Substances 0.000 description 26
- 230000000903 blocking effect Effects 0.000 description 21
- 239000003973 paint Substances 0.000 description 18
- 229920000139 polyethylene terephthalate Polymers 0.000 description 18
- 239000005020 polyethylene terephthalate Substances 0.000 description 18
- 229920001225 polyester resin Polymers 0.000 description 16
- 239000004645 polyester resin Substances 0.000 description 16
- 239000003795 chemical substances by application Substances 0.000 description 12
- 239000005038 ethylene vinyl acetate Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 238000010030 laminating Methods 0.000 description 10
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 10
- 238000010248 power generation Methods 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 9
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 9
- 238000001035 drying Methods 0.000 description 9
- 239000004611 light stabiliser Substances 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 8
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 8
- 239000006096 absorbing agent Substances 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 7
- 239000011247 coating layer Substances 0.000 description 7
- 239000000049 pigment Substances 0.000 description 7
- 239000004014 plasticizer Substances 0.000 description 7
- 239000011112 polyethylene naphthalate Substances 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 239000006229 carbon black Substances 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- 238000009472 formulation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229920005862 polyol Polymers 0.000 description 6
- 229920002620 polyvinyl fluoride Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 6
- 239000003963 antioxidant agent Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 229920006267 polyester film Polymers 0.000 description 5
- 239000013638 trimer Substances 0.000 description 5
- 238000007740 vapor deposition Methods 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 229920001651 Cyanoacrylate Polymers 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 4
- 239000012965 benzophenone Substances 0.000 description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 4
- 239000012964 benzotriazole Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229920006026 co-polymeric resin Polymers 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000009820 dry lamination Methods 0.000 description 4
- 229910052809 inorganic oxide Inorganic materials 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 4
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 229960004889 salicylic acid Drugs 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 238000003851 corona treatment Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 3
- 208000028659 discharge Diseases 0.000 description 3
- 239000008393 encapsulating agent Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000012760 heat stabilizer Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 229920005672 polyolefin resin Polymers 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 239000012744 reinforcing agent Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 239000012463 white pigment Substances 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- VNFXPOAMRORRJJ-UHFFFAOYSA-N (4-octylphenyl) 2-hydroxybenzoate Chemical compound C1=CC(CCCCCCCC)=CC=C1OC(=O)C1=CC=CC=C1O VNFXPOAMRORRJJ-UHFFFAOYSA-N 0.000 description 2
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000005749 Copper compound Substances 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 2
- 229920001780 ECTFE Polymers 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 2
- DCBNMBIOGUANTC-UHFFFAOYSA-N [5-[(5-benzoyl-4-hydroxy-2-methoxyphenyl)methyl]-2-hydroxy-4-methoxyphenyl]-phenylmethanone Chemical compound COC1=CC(O)=C(C(=O)C=2C=CC=CC=2)C=C1CC(C(=CC=1O)OC)=CC=1C(=O)C1=CC=CC=C1 DCBNMBIOGUANTC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 229910001508 alkali metal halide Inorganic materials 0.000 description 2
- 150000008045 alkali metal halides Chemical class 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 239000002216 antistatic agent Substances 0.000 description 2
- 238000007611 bar coating method Methods 0.000 description 2
- FLPKSBDJMLUTEX-UHFFFAOYSA-N bis(1,2,2,6,6-pentamethylpiperidin-4-yl) 2-butyl-2-[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]propanedioate Chemical compound C1C(C)(C)N(C)C(C)(C)CC1OC(=O)C(C(=O)OC1CC(C)(C)N(C)C(C)(C)C1)(CCCC)CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 FLPKSBDJMLUTEX-UHFFFAOYSA-N 0.000 description 2
- RSOILICUEWXSLA-UHFFFAOYSA-N bis(1,2,2,6,6-pentamethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)N(C)C(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)N(C)C(C)(C)C1 RSOILICUEWXSLA-UHFFFAOYSA-N 0.000 description 2
- WXNRYSGJLQFHBR-UHFFFAOYSA-N bis(2,4-dihydroxyphenyl)methanone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=C(O)C=C1O WXNRYSGJLQFHBR-UHFFFAOYSA-N 0.000 description 2
- FQUNFJULCYSSOP-UHFFFAOYSA-N bisoctrizole Chemical compound N1=C2C=CC=CC2=NN1C1=CC(C(C)(C)CC(C)(C)C)=CC(CC=2C(=C(C=C(C=2)C(C)(C)CC(C)(C)C)N2N=C3C=CC=CC3=N2)O)=C1O FQUNFJULCYSSOP-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001880 copper compounds Chemical class 0.000 description 2
- VEIOBOXBGYWJIT-UHFFFAOYSA-N cyclohexane;methanol Chemical compound OC.OC.C1CCCCC1 VEIOBOXBGYWJIT-UHFFFAOYSA-N 0.000 description 2
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 2
- 238000007607 die coating method Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 2
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 229910001701 hydrotalcite Inorganic materials 0.000 description 2
- 229960001545 hydrotalcite Drugs 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 2
- 238000001579 optical reflectometry Methods 0.000 description 2
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 150000003018 phosphorus compounds Chemical class 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229960001860 salicylate Drugs 0.000 description 2
- 229940116351 sebacate Drugs 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 description 2
- 239000000429 sodium aluminium silicate Substances 0.000 description 2
- 235000012217 sodium aluminium silicate Nutrition 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- CXVGEDCSTKKODG-UHFFFAOYSA-N sulisobenzone Chemical compound C1=C(S(O)(=O)=O)C(OC)=CC(O)=C1C(=O)C1=CC=CC=C1 CXVGEDCSTKKODG-UHFFFAOYSA-N 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000010456 wollastonite Substances 0.000 description 2
- 229910052882 wollastonite Inorganic materials 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 239000011667 zinc carbonate Substances 0.000 description 2
- 229910000010 zinc carbonate Inorganic materials 0.000 description 2
- 235000004416 zinc carbonate Nutrition 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- WUJZJIIOOUMYGX-UHFFFAOYSA-N 2h-benzotriazole;2-(benzotriazol-2-yl)-4-methylphenol Chemical compound C1=CC=CC2=NNN=C21.CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 WUJZJIIOOUMYGX-UHFFFAOYSA-N 0.000 description 1
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical group C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000007718 adhesive strength test Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- UHPJWJRERDJHOJ-UHFFFAOYSA-N ethene;naphthalene-1-carboxylic acid Chemical group C=C.C1=CC=C2C(C(=O)O)=CC=CC2=C1 UHPJWJRERDJHOJ-UHFFFAOYSA-N 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 239000012939 laminating adhesive Substances 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 229920006381 polylactic acid film Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- ZQZCOBSUOFHDEE-UHFFFAOYSA-N tetrapropyl silicate Chemical compound CCCO[Si](OCCC)(OCCC)OCCC ZQZCOBSUOFHDEE-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
-
- 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
- C09D183/02—Polysilicates
-
- 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
- H01L31/02—Details
- H01L31/0203—Containers; Encapsulations, e.g. encapsulation of photodiodes
-
- 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
-
- 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
Definitions
- the present invention relates to a method for producing a solar cell module that can withstand use in a severe outdoor environment for a long period of time and is excellent in adhesion and weather resistance to a silicone encapsulant, a solar cell backside sealing sheet, and a solar cell module It is.
- Solar cells used for photovoltaic power generation constitute the heart of a photovoltaic power generation system that directly converts sunlight energy into electrical energy, and are made of semiconductors such as silicon.
- solar cell elements hereinafter referred to as cells
- a unit incorporated in this package is called a solar cell module, and generally has a structure in which the surface exposed to sunlight is covered with glass, the gap is filled with a sealing material made of a thermoplastic resin, and the back surface is protected with a sealing sheet. ing. Therefore, the solar cell module is generally configured by laminating glass, a sealing material layer including cells, and a back surface sealing sheet in this order.
- EVA resin ethylene-vinyl acetate copolymer resin
- EVA resin ethylene-vinyl acetate copolymer resin
- silicone resin takes time for thermosetting when sealing cells, and there is a risk of discoloration when exposed to ultraviolet rays for a long time, it is often mixed with an ultraviolet absorber. Since it is limited, there is a problem that power generation efficiency is suppressed.
- Silicone is an example of a sealing material that compensates for such problems. Since silicone has excellent environmental resistance and light transmittance, there is a possibility that power generation efficiency can be improved as compared with the case where EVA resin is used. Further, by using liquid silicone having thermosetting property, it can be thermoset in a shorter time than EVA resin, which contributes to the improvement of productivity of the solar cell module.
- the back side sealing sheet has mechanical strength, heat resistance, water resistance, chemical resistance, light reflectivity, water vapor barrier property, thermal adhesiveness with sealing material, design, and for mounting the outermost terminal box Not only properties such as adhesive strength with silicone resins are required, but also excellent weather resistance is required due to exposure to ultraviolet light.
- a white polyvinyl fluoride film (DuPont, trade name: “Tedlar” (registered trademark)) can be exemplified, and the film is a polyester film.
- a backside sealing sheet having a laminated structure in which sandwiches are sandwiched is widely used in such applications.
- Patent Document 1 a configuration in which a polyester film excellent in weather resistance and gas barrier properties is laminated can be exemplified.
- Patent Document 2 JP 2002-026354 A (paragraphs [0008] to [0010]) JP 2003-060218 A (paragraphs [0008] to [0010])
- thermo adhesive layer hot melt adhesive layer
- styrene / olefin copolymer resin disclosed in Patent Document 2 is improved in adhesive strength, but it cannot be said that the strength is sufficient. There was also concern about the durability.
- the backside sealing sheet film has poor adhesiveness with silicone, and therefore, it is necessary to develop a new backside sealing sheet suitable for the silicone sealing material.
- the back surface sealing sheet of the structure in which the polyester film is sandwiched between the polyvinyl fluoride films is excellent in weather resistance, it is expensive, so that it is an obstacle in terms of reducing the cost of the solar cell module.
- An object of the present invention is to provide a solar cell module manufacturing method, a solar cell back surface sealing sheet, and a solar cell module, which are capable of overcoming the above problems and having excellent adhesion and weather resistance to a silicone sealing material.
- the manufacturing method of the solar cell module of the present invention has the following configuration in order to solve this problem. That is, A coating containing at least one of a silicate hydrolysis product and silica fine particles is applied to at least one surface of a base film to form a silicon oxide layer, and the silicon oxide layer and the silicone sealing material layer are bonded to each other. A method for manufacturing a solar cell module.
- the solar cell back surface sealing sheet of this invention has the following structure, in order to solve this subject. That is, A solar cell backside sealing sheet having a silicon oxide layer formed by coating a coating containing at least one of a silicate hydrolysis product and silica fine particles on at least one side of a base film.
- the solar cell module of the present invention has the following configuration. That is, A solar cell module in which the silicon oxide layer and the silicone sealing material layer are directly laminated.
- the silicate is preferably butyl silicate.
- the base film contains an inorganic pigment.
- the base film has a resin layer containing an ultraviolet absorber on the surface opposite to the surface on which the silicon oxide layer is formed.
- the base film has a resin layer containing an ultraviolet absorber, and the surface on which the silicon oxide layer is formed is the resin layer side.
- the manufacturing method of a solar cell module excellent in the adhesive force with respect to a silicone sealing material and the weather resistance which can be used in the severe outdoor environment for a long term, a solar cell backside sealing sheet, and a solar cell module Is obtained.
- a coating containing at least one of a silicate hydrolysis product and silica fine particles is applied to at least one surface of a base film to form a silicon oxide layer, The physical layer and the silicone sealing material layer are adhered to each other.
- an excellent adhesive force between the base film and the silicone sealing material layer can be obtained, and further, a solar cell module having excellent weather resistance can be obtained.
- Base film In the solar cell backside sealing sheet of the present invention, various resin films can be used as the base film when forming the silicon oxide layer disposed on the surface in contact with the silicone sealing material layer.
- polyester resin films such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), resin films such as polycarbonate, polymethyl methacrylate, polyacrylate, polypropylene, and polyethylene, and resin films obtained by mixing these resins. It is done. Among them, a polyester resin film is preferable because it is excellent in strength, dimensional stability, and thermal stability, and a polyethylene terephthalate film such as PET or PEN is particularly preferable because it is inexpensive.
- the polyester resin may be a copolymer.
- copolymer component examples include diol components such as propylene glycol, diethylene glycol, neopentyl glycol, and cyclohexane dimethanol, isophthalic acid, adipic acid, azelaic acid, and sebacin.
- diol components such as propylene glycol, diethylene glycol, neopentyl glycol, and cyclohexane dimethanol, isophthalic acid, adipic acid, azelaic acid, and sebacin.
- the dicarboxylic acid component of an acid and its ester-forming derivative can be used.
- the solar cell backside sealing sheet of the present invention is preferably a resin film excellent in hydrolysis resistance, that is, a hydrolysis resistance film as a base film from the viewpoint of being used in an environment where it is directly exposed to the outside air.
- a polyester resin film is formed using a so-called polymer obtained by condensation polymerization of monomers as a raw material, and contains about 1.5 to 2% by mass of an oligomer positioned between the monomer and the polymer.
- a typical oligomer is a cyclic trimer, and a film with a high content of it causes a decrease in mechanical strength, cracks, breakage of materials, etc. due to the progress of hydrolysis due to rainwater, etc. during long-term exposure such as outdoors. .
- a polyester resin film is formed from a polyester resin having a cyclic trimer content obtained by polymerization by a solid phase polymerization method of 1.0% by mass or less.
- the cyclic trimer content is measured by, for example, measuring the content (% by mass) relative to the resin mass by measuring by liquid chromatography using a solution obtained by dissolving 100 mg of a polymer in 2 mL of orthochlorophenol. Is required.
- the resin film constituting the solar cell backside sealing sheet if necessary, for example, an antistatic agent, an ultraviolet absorber, a stabilizer, an antioxidant, a plasticizer, a lubricant, a filler, a coloring pigment, etc.
- an antistatic agent for example, an ultraviolet absorber, a stabilizer, an antioxidant, a plasticizer, a lubricant, a filler, a coloring pigment, etc.
- Resin films and the like in which additives are added within a range not impairing the effects of the present invention can also be used.
- resin films to which additives are added include polyester resins such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), resin films such as polycarbonate, polymethyl methacrylate, polyacrylate, polypropylene, and polyethylene, and the like. And a white film obtained by forming a resin raw material in which a white pigment is kneaded into a resin film in which the above resin is mixed.
- the white pigment inorganic pigments such as titanium oxide and zinc oxide can be preferably used. By kneading, a white film having a whiteness of 80% or more and an opacity of 80% or more can be obtained.
- the white film is used for the purpose of assisting energy conversion in the semiconductor element by reflecting the light incident on the back sheet, and is preferably arranged in a layer close to the cell.
- a white film preferably used as a base film is used for reflecting sunlight to improve power generation efficiency.
- a polyester resin film such as PET or PEN is preferable because of its excellent strength, dimensional stability, and thermal stability, and a polyethylene terephthalate film is particularly preferable because of its low cost.
- the polyester resin constituting the polyester resin film is composed of polyethylene terephthalate in which 80 mol% or more of the structural unit is ethylene terephthalate, polyethylene naphthalate in which 80 mol% or more of the structural unit is ethylene naphthalate, Although represented by a polylactic acid film or the like in which 80 mol% or more of the unit is polylactic acid, it is not particularly limited.
- the polyester resin may be a copolymer.
- the copolymer component include diol components such as propylene glycol, diethylene glycol, neopentyl glycol, and cyclohexane dimethanol, isophthalic acid, adipic acid, azelaic acid, and sebacin.
- the dicarboxylic acid component of an acid and its ester-forming derivative can be used.
- the thickness of the resin film for the solar cell backside sealing sheet is not particularly limited, but is preferably in the range of 1 to 250 ⁇ m in view of the voltage resistance characteristics, cost, etc. of the sealing sheet.
- the base film may be a water vapor barrier film in which at least one inorganic oxide layer is formed by vapor deposition for the purpose of imparting water vapor barrier properties.
- the “water vapor barrier film” in the present invention is a resin film having a water vapor transmission rate of 5 g / (m 2 ⁇ day) or less as measured by the method B described in JIS K 7129 (2000).
- As the water vapor barrier film at least one metal thin film layer or inorganic layer is formed on at least one surface of a polyester resin film such as polyethylene terephthalate (PET) or polyethylene naphthalate (PEN) or an olefin film such as polypropylene by vapor deposition or the like.
- a film provided with an oxide layer is mentioned, since the solar cell backside sealing sheet is required to have high electrical insulation, it is not an electrically conductive metal thin film layer, but an inorganic oxide layer. Is preferred.
- the gas barrier property of a film provided with an inorganic oxide layer by vapor deposition or the like is caused by at least the thermal dimensional stability of a polyester resin film as a base material. Therefore, a polyester resin film is a film stretched in a biaxial direction. Preferably there is.
- the resin film may be subjected to surface treatment such as discharge treatment such as corona discharge or plasma discharge, or acid treatment, if necessary.
- a weather resistance / ultraviolet blocking resin layer which will be described later, may be laminated on the resin film as necessary.
- a coating containing at least one of a silicate hydrolysis product and silica fine particles is applied to at least one surface of the above-described base film to form a silicon oxide layer.
- the silicate ethyl silicate, propyl silicate, and butyl silicate are preferable, and butyl silicate is more preferable.
- the paint used at this time can be dissolved in a solvent such as isopropyl alcohol, n-butyl alcohol, toluene and the like, and the silicon oxide layer can be formed by coating and drying.
- the silicon oxide layer thus formed functions as an easy adhesion layer for the sealing material.
- the silicon oxide layer is preferably bonded to the silicone encapsulant layer in a thermocompression bonding process when forming the solar cell module, and the adhesive strength is required to be maintained even in an environment where it is exposed outdoors for a long time. Is done. Therefore, the easy-adhesion layer for the sealing material is preferably a weather-resistant material, and a silicon oxide layer is preferably applied from this viewpoint.
- the thickness of the silicon oxide layer in the present invention is not particularly limited, but is preferably in the range of 0.05 to 0.4 ⁇ m in consideration of productivity and cost.
- the method for forming the silicon oxide layer on the base film is not particularly limited, and various known coating techniques can be used. For example, a roll coating method, a dip coating method, a bar coating method, a die coating method, a gravure roll coating method, or a combination of these methods can be used. Among them, the gravure roll coating method is a preferable method because it increases the stability of the coating layer forming composition.
- the coating liquid containing the silicon oxide according to the present invention includes a heat stabilizer, an antioxidant, a strengthening agent, a deterioration preventing agent, a weathering agent, a flame retardant, a plasticizer, and a mold release as long as the characteristics are not impaired. Agents, lubricants, crosslinking aids, pigment dispersants, antifoaming agents, leveling agents, UV absorbers, light stabilizers, thickeners, adhesion improvers, matting agents and the like may be added.
- heat stabilizers, antioxidants and deterioration inhibitors examples include hindered phenols, phosphorus compounds, hindered amines, sulfur compounds, copper compounds, alkali metal halides, and mixtures thereof.
- reinforcing agents examples include clay, talc, calcium carbonate, zinc carbonate, wollastonite, silica, alumina, magnesium oxide, calcium silicate, sodium aluminate, sodium aluminosilicate, magnesium silicate, glass balloon, carbon black, and oxidation.
- examples include zinc, zeolite, hydrotalcite, metal fiber, metal whisker, ceramic whisker, potassium titanate whisker, boron nitride, graphite, glass fiber, and carbon fiber.
- UV absorbers examples include salicylic acid-based, benzophenone-based, benzotriazole-based, and cyanoacrylate-based UV absorbers.
- Examples of the light stabilizer that can be used include hindered amine light stabilizers. Specifically, bis (1,2,2,6,6-pentamethyl-4-piperidyl) [[3,5-bis (1,1-dimethylethyl) -4-hydroxyphenyl] methyl] butyl malonate, Bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, methyl (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, bis (2,2,6) decanedioate , 6-tetramethyl-1-octyloxy] -4-piperidinyl] ester and the like, modified products, polymers and derivatives thereof.
- hindered amine light stabilizers Specifically, bis (1,2,2,6,6-pentamethyl-4-piperidyl) [[3,5-bis (1,1-dimethylethyl) -4-hydroxyphenyl] methyl] butyl malonate, Bis (1,2,2,6,
- seat obtained by forming a silicon oxide layer in a base film is used as a solar cell back surface sealing sheet.
- the solar cell back surface sealing sheet in this invention is good also as a form which laminated
- bonding using a known dry lamination method can be applied.
- an adhesive prepared by diluting two resins of a main agent and a crosslinking agent with a diluting solvent is used.
- polyether polyurethane-based, polyester polyurethane-based, polyester-based, and polyepoxy-based resins are the main ingredients, and the cross-linking agent is rich in reactivity with active hydroxyl groups, and its reaction rate and initial adhesive force are rapidly expressed. It is preferable to use an isocyanate group-containing polymer.
- the adhesive layer formed from these adhesives does not cause delamination due to deterioration of the adhesive strength after long-term outdoor use, and causes yellowing that leads to a decrease in light reflectance. It is required that there is no.
- the resin used for forming the adhesive layer is preferably an aliphatic resin or an alicyclic resin that does not contain an aromatic ring or has a low content.
- the thickness of the adhesive layer is preferably in the range of 1 to 10 ⁇ m. When the thickness of the adhesive layer is within this preferable range, sufficient adhesive strength can be obtained, but the production cost does not increase.
- the solar cell backside sealing sheet is required to have various properties such as water vapor barrier properties, light reflectivity, long-term moisture and weather resistance, adhesion to sealing materials, and electrical insulation.
- various company-specific sheet designs laminate designs are made in combination with various functional films, processing techniques such as vapor deposition and wet coating in accordance with the concept of functional division.
- a substrate film having hydrolysis resistance a white film, a film having an inorganic oxide vapor deposition layer, and an outer layer side weather resistance / ultraviolet blocking resin layer (film, resin coating layer, etc.) It is good also as a solar cell back surface sealing sheet which satisfy
- the base film of the solar cell backside sealing sheet has a weather resistant / ultraviolet blocking resin layer on the surface opposite to the surface on which the silicon oxide layer is formed.
- the base film may have a weather resistance / ultraviolet blocking resin layer, and a silicon oxide layer may be formed on the resin layer side.
- a film having hydrolysis resistance is used as a base film, and the base film is laminated with a hydrolysis resistance / weather resistance film formed with a weather resistance / ultraviolet ray blocking resin layer.
- a design having an ultraviolet blocking resin layer (hereinafter sometimes simply referred to as a resin layer) is preferable.
- the weather resistance / ultraviolet blocking resin layer include a resin layer containing an ultraviolet absorber.
- fluorine-containing resin, acrylic resin, polyester resin, polyolefin resin, polyamide resin, or the like can be used.
- the fluorine-containing resin includes polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF), ethylene-tetrafluoroethylene copolymer resin (ETFE), ethylene-chlorotrifluoroethylene.
- PTFE polytetrafluoroethylene
- PVDF polyvinylidene fluoride
- PVF polyvinyl fluoride
- ETFE ethylene-tetrafluoroethylene copolymer resin
- ECTFE tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resins
- acrylic resins polymethyl methacrylate, polyacrylate, acrylic resins obtained by crosslinking acrylic polyol resins using various crosslinking agents, etc.
- Polyester resins include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polybutylene terephthalate (PBT).
- Polyolefin resins include polypropylene and polyethylene.
- Ethylene - vinyl acetate (EVA) Ethylene - vinyl acetate
- cyclic olefin resins a polyamide resin, nylon 6, nylon 6,6, nylon 11, and nylon 12 can be exemplified.
- an inorganic ultraviolet absorber or an organic ultraviolet absorber is used as the ultraviolet absorber blended in these resins.
- inorganic ultraviolet absorbers include titanium oxide and zinc oxide that can also be used as white pigments, and carbon black that can also be used as black pigments.
- organic ultraviolet absorbers include salicylic acid and benzophenone. Examples thereof include UV absorbers such as benzotriazole and cyanoacrylate.
- organic ultraviolet absorber examples include salicylic acid-based pt-butylphenyl salicylate, p-octylphenyl salicylate, benzophenone-based 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2 -Hydroxy-4-methoxy-5-sulfobenzophenone, 2,2 ′, 4,4′-tetrahydroxybenzophenone, bis (2-methoxy-4-hydroxy-5-benzoylphenyl) methane, benzotriazole 2- ( 2'-hydroxy-5'-methylphenyl) benzotriazole, 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2,2'-methylenebis [4- (1,1,3,3-tetra Methylbutyl) -6- (2Hbenzotriazol-2-yl) phenol], cyanoacrylate Ethyl-2-cyano-3,3′-diphenylacrylate), others, and
- the solar cell module which is the application of the present invention is used outdoors for 20 years, sometimes longer than that, and as an ultraviolet absorber to be used, an inorganic ultraviolet absorber is more durable from the viewpoint of durability. preferable.
- an ultraviolet absorber to be used an inorganic ultraviolet absorber is more durable from the viewpoint of durability. preferable.
- light stabilizers used in weathering and UV blocking resin layers include hindered amine-based light stabilizers.
- an acrylic polyol resin in which a resin layer is copolymerized with an ultraviolet absorber and a light stabilizer. Further, it is more preferable to mix an acrylic polyol-based resin copolymerized with an ultraviolet absorber and a light stabilizer and an inorganic ultraviolet absorber to form a resin layer because the ultraviolet blocking performance is further improved.
- the weather resistance / ultraviolet blocking resin layer may contain additives such as antistatic agents, stabilizers, antioxidants, reinforcing agents, plasticizers, lubricants, fillers, coloring pigments, and the like as necessary.
- heat stabilizers, antioxidants, and deterioration inhibitors include hindered phenols, phosphorus compounds, hindered amines, sulfur compounds, copper compounds, alkali metal halides, or mixtures thereof.
- reinforcing agents include clay, talc, calcium carbonate, zinc carbonate, wollastonite, silica, alumina, magnesium oxide, calcium silicate, sodium aluminate, sodium aluminosilicate, magnesium silicate, glass balloon, carbon black, zinc oxide, Zeolite, hydrotalcite, metal fiber, metal whisker, ceramic whisker, potassium titanate whisker, boron nitride, graphite, glass fiber, carbon fiber and the like can be mentioned.
- Examples of the weather resistant / ultraviolet blocking resin layer include the following films and coating layers.
- Examples of the film include a polyvinyl fluoride film, a polyvinylidene fluoride film, a polyethylene terephthalate film, a polyethylene film, and an ethylene-vinyl acetate film containing titanium oxide or carbon black.
- Examples thereof include a coating layer formed using a tetrafluoroethylene copolymer resin-containing paint containing titanium oxide or carbon black, and a paint containing an acrylic polyol resin and a polyisocyanate resin.
- the solar cell backside sealing sheet contains titanium oxide or a tetrafluoroethylene copolymer resin-containing paint containing carbon black, an acrylic polyol resin and a polyisocyanate resin.
- a coating layer formed using a coating material is preferable.
- the method for laminating the above weather-resistant / ultraviolet-blocking resin layer is not particularly limited. Examples thereof include a coating method and the dry laminating method described above in which a film containing another resin or additive and an adhesive are used for bonding.
- examples of the solvent for the coating solution include toluene, xylene, ethyl acetate, butyl acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, tetrahydrofuran, dimethylformamide, dimethylacetamide, methanol, ethanol, and Water and the like can be exemplified, and the property of the coating liquid may be either an emulsion type or a dissolution type.
- the method for forming the weather resistant / ultraviolet blocking resin layer is not particularly limited, and a known coating method can be used.
- a coating method various methods can be applied.
- a roll coating method, a dip coating method, a bar coating method, a die coating method, a gravure roll coating method, or a combination of these methods can be used. It can.
- the gravure roll coating method is a preferable method for increasing the stability of the coating layer forming composition.
- olar cell module When the solar cell backside sealing sheet produced as described above is used for a solar cell module, the silicon oxide layer of the solar cell backside sealing sheet is adhered to the silicone sealing material layer of the solar cell module. Include in the module.
- the characteristic evaluation method used in the present invention is as follows. (1) Measurement of coating amount The coating amount of the weather resistant / ultraviolet blocking resin layer (resin layer) was measured by the following procedure. After forming the resin layer, it was cut into an area of 500 cm 2 and the mass of the test piece was defined as mass A. Next, the resin layer was dissolved in methyl ethyl ketone from the test piece, peeled off, and the mass of the test piece was measured again to obtain mass B. Subsequently, the coating amount per unit area was calculated based on the following formula. This coating amount measurement was performed on three test pieces, and the average value was taken as the coating amount.
- a pre-calculated diluent was blended so that the mass ratio with respect to the coating was 100/4, and the coating was further calculated to have a solid concentration of 20% by mass (resin solid concentration): n-acetate
- the coating material 3 of solid content concentration 20 mass% (resin solid content concentration) was obtained by measuring propyl and stirring for 15 minutes.
- Example 1 As a base film, a hydrolysis-resistant polyethylene terephthalate film “Lumirror” (registered trademark) X10S (125 ⁇ m) having a cyclic trimer content of 1% by mass or less manufactured by Toray Industries, Inc. was prepared. One side of the base film is subjected to corona treatment, and further, the coating 1 is applied using a wire bar, and dried at 125 ° C. for 60 seconds.
- Limirror registered trademark
- a solar cell back surface sealing sheet 1 (abbreviated as sealing sheet 1 in Tables 3 and 4) was produced.
- a silicone resin tensile elastic modulus 0.09 MPa (based on JIS K 7161 (1994)), tensile strength 0.4 MPa (based on JIS K 7161 (1994)), refraction on a 3 mm thick semi-tempered glass
- Two-part curable resin with a rate of 1.402 (based on JIS K 0062 (1992)) and specific gravity (25 ° C.) 0.97 (based on JIS Z 8807 (1976)
- the inner layer side surface (the surface on which the silicon oxide layer of the base film of the base film is formed) of the stop sheet 1 is stacked and pressed using a vacuum laminator under a heating condition at 120 ° C. for 30 seconds and then pressed for 5 minutes.
- a battery module was produced.
- Example 2 The solar cell backside sealing sheet 2 (Table 3) was applied in the same manner as in Example 1 except that the silicon oxide layer forming paint 2 was applied instead of the silicon oxide layer forming paint 1 and the drying temperature was set to 80 ° C. , 4 is abbreviated as sealing sheet 2).
- a pseudo solar cell module was produced in the same manner as in Example 1 except that the solar cell back surface sealing sheet 2 was used.
- Example 3 Corona treatment is applied to the surface opposite to the surface on which the silicon oxide layer of the solar cell backside sealing sheet 1 produced by the method described in Example 1 is formed, and the paint 3 is applied using a wire bar, Dry at 150 ° C.
- a pseudo solar cell module was produced in the same manner as in Example 1 except that the solar cell back surface sealing sheet 3 was used.
- Example 4 A silicon oxide layer was formed in the same manner as in Example 1 using “Lumirror” (registered trademark) E20 (125 ⁇ m), which is a white polyethylene terephthalate film manufactured by Toray Industries, Inc., as a base film.
- a hydrolysis-resistant polyethylene terephthalate film “Lumirror” (registered trademark) X10S (125 ⁇ m) having a cyclic trimer content of 1% by mass or less was prepared as a laminate film.
- One side of this laminating film is subjected to corona treatment and further coated with a paint 3 using a wire bar and dried at 150 ° C. for 30 seconds so that the coating amount after drying is 3.0 g / m 2.
- a weather resistant / ultraviolet blocking resin layer was provided.
- a dry laminating adhesive is applied using a wire bar, and dried at 80 ° C.
- a dry laminate adhesive layer was formed so that the coating amount after drying was 5.0 g / m 2 (thickness 5 ⁇ m).
- the surface opposite to the surface on which the weather resistance / ultraviolet blocking resin layer of the laminating film is formed is bonded, dry lamination is performed, and the solar cell back surface sealing sheet 4 (in Tables 3 and 4, the sealing sheet 4 and (Abbreviated).
- a pseudo solar cell module was produced in the same manner as in Example 1 except that the solar cell back surface sealing sheet 4 was used. (Example 5) Applying paint 3 instead of silicon oxide layer-forming paint 1, drying at 150 ° C.
- the solar cell back surface sealing sheet 5 (abbreviated as the sealing sheet 5 in Tables 3 and 4) was prepared in the same manner as in Example 1 except that.
- a pseudo solar cell module was produced in the same manner as in Example 1 except that the solar cell back surface sealing sheet 5 was used.
- the method for producing a solar cell module, the solar cell backside sealing sheet, and the solar cell module of the present invention are useful because they are excellent in adhesive strength and weather resistance with respect to a silicone encapsulant.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Photovoltaic Devices (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
Abstract
Description
シリケートの加水分解生成物及びシリカ微粒子の少なくとも一つを含む塗料を基材フィルムの少なくとも片面に塗工してケイ素酸化物層を形成し、該ケイ素酸化物層とシリコーン封止材層とを接着する太陽電池モジュールの製造方法、である。
シリケートの加水分解生成物及びシリカ微粒子の少なくとも一つを含む塗料を基材フィルムの少なくとも片面に塗工して形成したケイ素酸化物層を有する太陽電池裏面封止シート、である。
前記ケイ素酸化物層とシリコーン封止材層が直接積層された太陽電池モジュール、である。
[基材フィルム]
本発明の太陽電池裏面封止シートにおいて、シリコーン封止材層と接する側の面に配するケイ素酸化物層を形成する際の基材フィルムとしては種々の樹脂フィルムを用いることができる。具体的には、ポリエチレンテレフタレート(PET)やポリエチレンナフタレート(PEN)などのポリエステル樹脂フィルムやポリカーボネート、ポリメチルメタクリレート、ポリアクリレート、ポリプロピレン、ポリエチレンなどの樹脂フィルム、これらの樹脂を混合した樹脂フィルムが挙げられる。中でも強度、寸法安定性、熱安定性に優れていることからポリエステル樹脂フィルムが好ましく、さらに安価であることからPETやPEN等のポリエチレンテレフタレートフィルムが特に好ましい。また、ポリエステル系樹脂は共重合体であっても良く、共重合成分としては、例えば、プロピレングリコール、ジエチレングリコール、ネオペンチルグリコール、シクロヘキサンジメタノール等のジオール成分、イソフタル酸、アジピン酸、アゼライン酸、セバシン酸およびそのエステル形成性誘導体のジカルボン酸成分などを使用することができる。
[ケイ素酸化物層]
本発明の太陽電池モジュールの製造方法において、シリケートの加水分解生成物及びシリカ微粒子の少なくとも一つを含む塗料を前述した基材フィルムの少なくとも片面に塗工してケイ素酸化物層を形成する。シリケートとしては、エチルシリケート、プロピルシリケート、ブチルシリケートが好ましく、ブチルシリケートがより好ましい。
このとき使用する塗料は、イソプロピルアルコール、n-ブチルアルコール、トルエン等の溶剤に溶解し、これを塗工乾燥することによりケイ素酸化物層を形成できる。
[その他添加剤]
さらに、本発明にかかるケイ素酸化物を含むコーティング液には、その特性を損なわない限りにおいて、熱安定剤、酸化防止剤、強化剤、劣化防止剤、耐候剤、難燃剤、可塑剤、離型剤、滑剤、架橋助剤、顔料分散剤、消泡剤、レベリング剤、紫外線吸収剤、光安定剤、増粘剤、接着改良剤、つや消し剤などを添加してもよい。
[太陽電池裏面封止シート]
基材フィルムにケイ素酸化物層を形成して得られるシートは太陽電池裏面封止シートとして用いられる。本発明における太陽電池裏面封止シートは、基材フィルムのケイ素酸化物層を形成した面と反対側の面に他の樹脂フィルムを積層した形態としてもよい。積層した形態とする手法としては、既知のドライラミネート法を用いた貼り合わせが適用できる。ドライラミネート法を用いた貼り合わせには、主剤および架橋剤の2つの樹脂を希釈溶媒で希釈して調合した接着剤が用いられる。具体的には、ポリエーテルポリウレタン系、ポリエステルポリウレタン系、ポリエステル系、ポリエポキシ系樹脂などを主剤とし、架橋剤としては活性水酸基との反応性に富み、その反応速度及び初期接着力の発現が早いイソシアネート基含有ポリマーを用いることが好ましい。ただし、これらの接着剤から形成される接着剤層には、接着強度が長期間の屋外使用で劣化することに起因するデラミネーションなどを生じないこと、光線反射率の低下につながる黄変を生じないことなどが要求される。そのような観点から、接着剤層の形成に用いる樹脂としては芳香環を含有しない、あるいは含有量の少ない脂肪族系樹脂あるいは脂環族系樹脂が好ましい。また、接着剤層の厚みとしては、好ましくは1~10μmの範囲である。接着剤層の厚みがこの好ましい範囲であると十分な接着強度が得られる一方、生産コストが上がることもない。
[耐候・紫外線遮断性樹脂層]
耐候・紫外線遮断性樹脂層としては、紫外線吸収剤を含む樹脂層が挙げられる。紫外線吸収剤を含む樹脂層を形成する樹脂としては、フッ素含有樹脂、アクリル樹脂、ポリエステル樹脂、ポリオレフィン樹脂、ポリアミド樹脂などを用いることができる。具体的には、フッ素含有樹脂としてはポリテトラフルオロエチレン(PTFE)、ポリフッ化ビニリデン(PVDF)、ポリフッ化ビニル(PVF)、エチレンーテトラフルオロエチレン共重合樹脂(ETFE)、エチレンークロロトリフルオロエチレン共重合樹脂(ECTFE)、テトラフルオロエチレンーパーフルオロアルキルビニルエーテル共重合樹脂(PFA)など、アクリル樹脂としてはポリメチルメタクリレート、ポリアクリレート、アクリルポリオール樹脂を各種架橋剤を用いて架橋したアクリル樹脂など、ポリエステル樹脂としては、ポリエチレンテレフタレート(PET)やポリエチレンナフタレート(PEN)、ポリブチレンテレフタレート(PBT)など、ポリオレフィン樹脂としては、ポリプロピレン、ポリエチレン、エチレン-ビニルアセテート(EVA)、環状オレフィン樹脂など、ポリアミド樹脂としては、ナイロン6、ナイロン6,6、ナイロン11、ナイロン12などを例示することができる。
[耐候・紫外線遮断性樹脂層に用いられる光安定化剤]
また、同様に前記耐候・紫外線遮断性樹脂層に好ましく用いられる光安定化剤としては、ヒンダードアミン系等の光安定化剤が挙げられる。具体的には、ビス(1,2,2,6,6-ペンタメチル-4-ピペリジル)〔[3,5-ビス(1,1-ジメチルエチル)-4-ヒドロキシフェニル]メチル〕ブチルマロネート、ビス(1,2,2,6,6-ペンタメチル-4-ピペリジル)セバケート、メチル(1,2,2,6,6-ペンタメチル-4-ピペリジル)セバケート、デカン二酸ビス[2,2,6,6-テトラメチル-1-オクチルオキシ]-4-ピペリジニル]エステルなどやこれらの変性物、重合物、誘導体などが例示できる。
[耐候・紫外線遮断性樹脂層に用い得るその他の添加剤]
また、前記の耐候・紫外線遮断性樹脂層には、必要に応じて、例えば、帯電防止剤、安定剤、酸化防止剤、強化剤、可塑剤、滑剤、充填剤、着色顔料等の添加剤を、本発明の効果を損なわない範囲内で添加することができる。例えば、熱安定剤、酸化防止剤及び劣化防止剤としては、ヒンダードフェノール類、リン化合物、ヒンダードアミン類、硫黄化合物、銅化合物、アルカリ金属のハロゲン化物あるいはこれらの混合物が挙げられる。
[耐候・紫外線遮断性樹脂層の製造方法]
前記の耐候・紫外線遮断性樹脂層を積層する方法は特に問わないが、溶融押出し積層する方法やその他の樹脂や添加剤を含有する液状塗料を塗布し、熱、光、電子線などにより硬化させるコーティング法や、その他の樹脂や添加剤を含むフィルムと接着剤を用いて貼り合せる前述したドライラミネート法などが例示できる。
[太陽電池モジュール]
上記のようにして作製した太陽電池裏面封止シートを太陽電池モジュールに使用するに際し、太陽電池裏面封止シートのケイ素酸化物層を太陽電池モジュールのシリコーン封止材層に接着させて、太陽電池モジュールに組み込む。
<特性の評価方法>
本発明で用いた特性の評価方法は、下記の通りである。
(1)塗布量測定
耐候・紫外線遮断性樹脂層(樹脂層)の塗布量は、以下の手順で測定した。樹脂層形成後に500cm2の面積に切り出し、その試験片の質量を質量Aとした。次に、その試験片から樹脂層をメチルエチルケトンに溶解させ、剥がし取り、再び試験片の質量を測定し、質量Bとした。続いて、下式に基づき、単位面積当たりの塗布量を算出した。この塗布量測定を3つの試験片について行い、その平均値を塗布量とした。
(2)封止材層との接着強度の測定
JIS K 6854-2 (1999)に基づいて、各例で作製した疑似太陽電池モジュールサンプルのシリコーン封止材層と基材フィルムとの接着力を測定した。接着強度試験の試験片の幅は10mmとし、2つの試験片について各々測定を1回行い、2つの測定値の平均値を接着強度の値とした。
(3)耐湿熱性評価
エスペック(株)製恒温恒湿オーブンを用いて、85℃、85%RHの環境下で1,000時間の湿熱処理を擬似太陽電池モジュールに施した。その後、封止材層と裏面封止シート間の接着強度測定を実施した。
(4)耐紫外線性評価
岩崎電気(株)製アイスーパーUVテスターSUV-W151を用いて、60℃×50%RH雰囲気にて紫外線強度160mW/cm2で240時間、擬似太陽電池モジュールにガラス面側からあるいは外層面(裏面封止シート)側から紫外線照射を行った。その前後の表色系b値の測定を行った。
[ケイ素酸化物層形成用塗料(塗料1)の調製]
表1の調合液1の欄に示す配合にて、n-ブチルシリケートとエタノールを混合し20分間撹拌後、25℃以下を保つように0.1N塩酸を少しずつ滴下後2時間撹拌し、その後12~24時間容器に蓋をして保管・熟成させ調合液1を得た。次に、別の容器で表1の調合液2の欄に示す配合にて、イソプロピルアルコール、n-ブチルアルコール、トルエンを混合し15分間撹拌後、東レ・ダウコーニング(株)製“トーレシリコーン”(登録商標)SH190を混合し30分間撹拌し調合液2を得た。調合液1と2を混合し、30分間撹拌して固形分濃度1質量%の塗料1を得た。
(株)菱和製のポリシリケート系コート剤DM-30(固形分濃度:1質量%)を塗料2とした。
[耐候性コート層形成用塗料(塗料3)の調製]
(i)主剤の調製
表2の主剤の欄に示す配合にて、(株)日本触媒製の、紫外線吸収剤及び光安定化剤(HALS)がアクリルポリオール樹脂に架橋されたコーティング剤である“ハルスハイブリットポリマー”(登録商標)BK1(固形分濃度:40質量%)に着色顔料および溶剤を一括混合し、ビーズミル機を用いて分散した。その後、可塑剤を添加して、固形分濃度が51質量%である耐候・紫外線遮断性樹脂層形成用の塗料の主剤を得た。
(ii)塗料3の調製
上記主剤にヌレート型ヘキサメチレンジイソシアネート樹脂である住化バイエルウレタン(株)製“デスモジュール”(登録商標)N3300(固形分濃度:100質量%)を樹脂層形成用主剤塗料との質量比が100/4の比になるように予め計算した量配合し、さらに固形分濃度20質量%(樹脂固形分濃度)の塗料となるように予め算出した希釈剤:酢酸n-プロピルを量りとり、15分間攪拌することにより固形分濃度20質量%(樹脂固形分濃度)の塗料3を得た。
可塑剤:DIC(株)製ポリエステル系可塑剤“ポリサイザー”(登録商標)W-220EL
硬化剤との反応部位として水酸基を構造中に含む樹脂を主成分とするDIC(株)製の耐湿熱性を有するドライラミネート剤“ディックドライ”(登録商標)TAF-300を36部、硬化剤としてヘキサメチレンジイソシアネート系樹脂を主成分とするDIC(株)製TAFハードナーAH-3を3部、および酢酸エチルを30質量部量りとり、15分間攪拌することにより固形分濃度30質量%のドライラミネート用接着剤を得た。本接着剤を用いてフィルムをドライラミネート法で貼り合わせた後、実施例に記載の通り、エージングを施すことで、水酸基とイソシアネート基が架橋反応し、ウレタン結合を形成した。
(実施例1)
基材フィルムとして東レ(株)製の環状三量体の含有量が1質量%以下である耐加水分解性ポリエチレンテレフタレートフィルム“ルミラー”(登録商標)X10S(125μm)を準備した。この基材フィルムの一方の面に、コロナ処理を施し、さらにワイヤーバーを用いて塗料1を塗布し、125℃で60秒間乾燥し、乾燥後塗布量が0.1g/m2(厚み0.1μm)となるようにケイ素酸化物層を形成した。このようにして太陽電池裏面封止シート1(表3,4中では封止シート1と略記する)を作製した。次に、厚さ3mmの半強化ガラスの上にシリコーン樹脂(引張り弾性率0.09MPa(JIS K 7161(1994)に基づく)、引張り強度0.4MPa(JIS K 7161(1994)に基づく)、屈折率1.402(JIS K 0062(1992)に基づく)、比重(25℃)0.97(JIS Z 8807(1976)に基づく)の2液硬化型樹脂)を積層し、作製した太陽電池裏面封止シート1の内層側面(基材フィルムのケイ素酸化物層を形成した面)が接するように重ね、真空ラミネーターを用いて120℃加熱条件下、30秒真空引き後5分プレス処理し、疑似太陽電池モジュールを作製した。
(実施例2)
ケイ素酸化物層形成用塗料1の代わりにケイ素酸化物層形成用塗料2を塗布し、乾燥温度を80℃とした他は、実施例1と同様にして太陽電池裏面封止シート2(表3,4中では封止シート2と略記する)を作製した。太陽電池裏面封止シート2を用いた他は、実施例1と同様にして疑似太陽電池モジュールを作製した。
(実施例3)
実施例1に記載の方法で作製した太陽電池裏面封止シート1のケイ素酸化物層を形成した面とは反対側の面にコロナ処理を施し、さらにワイヤーバーを用いて塗料3を塗布し、150℃で30秒間乾燥し、乾燥後塗布量が3.0g/m2となるように耐候・紫外線遮断性樹脂層を設け、太陽電池裏面封止シート3(表3,4中では封止シート3と略記する)を作製した。太陽電池裏面封止シート3を用いた他は、実施例1と同様にして疑似太陽電池モジュールを作製した。
(実施例4)
基材フィルムとして東レ(株)製白色ポリエチレンテレフタレートフィルムである“ルミラー”(登録商標)E20(125μm)を用いて、実施例1と同様にしてケイ素酸化物層を形成した。次に、別途、ラミネート用フィルムとして東レ(株)製の環状三量体の含有量が1質量%以下である耐加水分解性ポリエチレンテレフタレートフィルム“ルミラー”(登録商標)X10S(125μm)を準備した。このラミネート用フィルムの一方の面に、コロナ処理を施し、さらにワイヤーバーを用いて塗料3を塗布し、150℃で30秒間乾燥し、乾燥後塗布量が3.0g/m2となるように耐候・紫外線遮断性樹脂層を設けた。次にケイ素酸化物層を形成した白色フィルムのケイ素酸化物層を形成した面とは反対側の面に、ワイヤーバーを用いてドライラミネート用接着剤を塗布し、80℃で45秒間乾燥し、乾燥後塗布量が5.0g/m2(厚み5μm)となるようにドライラミネート接着剤層を形成した。次にラミネート用フィルムの耐候・紫外線遮断性樹脂層を形成した面と反対側の面を貼り合わせ、ドライラミネートを行い、太陽電池裏面封止シート4(表3,4中では封止シート4と略記する)を作製した。太陽電池裏面封止シート4を用いた他は、実施例1と同様にして疑似太陽電池モジュールを作製した。
(実施例5)
ケイ素酸化物層形成用塗料1の代わりに塗料3を塗布し、150℃で30秒間乾燥し、乾燥後塗布量が3.0g/m2となるように耐候・紫外線遮断性樹脂層を設け、さらにその樹脂層上にワイヤーバーを用いて塗料1を塗布し、125℃で60秒間乾燥し、乾燥後塗布量が0.1g/m2(厚み0.1μm)となるようにケイ素酸化物層を形成した他は、実施例1と同様にして太陽電池裏面封止シート5(表3,4中では封止シート5と略記する)を作製した。太陽電池裏面封止シート5を用いた他は、実施例1と同様にして疑似太陽電池モジュールを作製した。
(比較例1)
ケイ素酸化物層を形成しないで、“ルミラー”(登録商標)X10S(東レ(株)製、125μm)を太陽電池裏面封止シート6(表3,4中では封止シート5と略記する)とした他は、実施例1と同様にして、疑似太陽電池モジュールを作製した。
Claims (7)
- シリケートの加水分解生成物及びシリカ微粒子の少なくとも一つを含む塗料を基材フィルムの少なくとも片面に塗工してケイ素酸化物層を形成し、該ケイ素酸化物層とシリコーン封止材層とを接着する太陽電池モジュールの製造方法。
- 前記シリケートがブチルシリケートである請求項1に記載の太陽電池モジュールの製造方法。
- 前記基材フィルムが無機系顔料を含む請求項1又は2に記載の太陽電池モジュールの製造方法。
- 前記基材フィルムが前記ケイ素酸化物層を形成した面とは反対側の面に紫外線吸収剤を含む樹脂層を有する請求項1~3のいずれかに記載の太陽電池モジュールの製造方法。
- 前記基材フィルムが紫外線吸収剤を含む樹脂層を有し、前記ケイ素酸化物層を形成した面が該樹脂層側である請求項1~4のいずれかに記載の太陽電池モジュールの製造方法。
- シリケートの加水分解生成物及びシリカ微粒子の少なくとも一つを含む塗料を基材フィルムの少なくとも片面に塗工して形成したケイ素酸化物層を有する太陽電池裏面封止シート。
- 請求項6に記載のケイ素酸化物層とシリコーン封止材層が直接積層された太陽電池モジュール。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280041452.3A CN103765611A (zh) | 2011-08-30 | 2012-08-28 | 太阳能电池模块的制造方法、太阳能电池背面密封片和太阳能电池模块 |
KR1020147003863A KR20140059197A (ko) | 2011-08-30 | 2012-08-28 | 태양 전지 모듈의 제조 방법, 태양 전지 이면 밀봉 시트 및 태양 전지 모듈 |
US14/238,608 US20140190557A1 (en) | 2011-08-30 | 2012-08-28 | Method for producing solar cell module, solar cell backside sealing sheet, and solar cell module |
IN2271CHN2014 IN2014CN02271A (ja) | 2011-08-30 | 2012-08-28 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-187249 | 2011-08-30 | ||
JP2011187249 | 2011-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013031752A1 true WO2013031752A1 (ja) | 2013-03-07 |
Family
ID=47756237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/071650 WO2013031752A1 (ja) | 2011-08-30 | 2012-08-28 | 太陽電池モジュールの製造方法、太陽電池裏面封止シートおよび太陽電池モジュール |
Country Status (6)
Country | Link |
---|---|
US (1) | US20140190557A1 (ja) |
JP (1) | JPWO2013031752A1 (ja) |
KR (1) | KR20140059197A (ja) |
CN (1) | CN103765611A (ja) |
IN (1) | IN2014CN02271A (ja) |
WO (1) | WO2013031752A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR112016019705B1 (pt) * | 2014-02-27 | 2022-03-22 | Chemetall Gmbh | Método de revestimento de superfícies metálicas de substratos com composições aquosas na forma de dispersão e/ou suspensão |
KR20180017894A (ko) * | 2016-08-11 | 2018-02-21 | 엘지전자 주식회사 | 태양광 발전 모듈 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH026625B2 (ja) * | 1983-12-28 | 1990-02-13 | Toyo Boseki | |
JPH07205359A (ja) * | 1994-01-07 | 1995-08-08 | Teijin Ltd | 複合フイルム |
JP2002134770A (ja) * | 2000-10-23 | 2002-05-10 | Toppan Printing Co Ltd | 太陽電池用裏面保護シート |
JP2007109696A (ja) * | 2005-10-11 | 2007-04-26 | Toppan Printing Co Ltd | 太陽電池用裏面保護シート及び太陽電池モジュール |
JP2007150084A (ja) * | 2005-11-29 | 2007-06-14 | Dainippon Printing Co Ltd | 太陽電池モジュール用裏面保護シート、太陽電池モジュール用裏面積層体、および、太陽電池モジュール |
WO2010087461A1 (ja) * | 2009-01-29 | 2010-08-05 | 京セラ株式会社 | 太陽電池モジュールおよびその製造方法 |
JP2011046046A (ja) * | 2009-08-26 | 2011-03-10 | Fujifilm Corp | 積層フィルムおよび複合フィルム |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5286860B2 (ja) * | 2008-03-19 | 2013-09-11 | 凸版印刷株式会社 | ガスバリアフィルムの製造方法 |
EP2110863A1 (de) * | 2008-04-15 | 2009-10-21 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Solarzellenmodul |
-
2012
- 2012-08-28 US US14/238,608 patent/US20140190557A1/en not_active Abandoned
- 2012-08-28 IN IN2271CHN2014 patent/IN2014CN02271A/en unknown
- 2012-08-28 CN CN201280041452.3A patent/CN103765611A/zh active Pending
- 2012-08-28 KR KR1020147003863A patent/KR20140059197A/ko not_active Application Discontinuation
- 2012-08-28 WO PCT/JP2012/071650 patent/WO2013031752A1/ja active Application Filing
- 2012-08-28 JP JP2012540199A patent/JPWO2013031752A1/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH026625B2 (ja) * | 1983-12-28 | 1990-02-13 | Toyo Boseki | |
JPH07205359A (ja) * | 1994-01-07 | 1995-08-08 | Teijin Ltd | 複合フイルム |
JP2002134770A (ja) * | 2000-10-23 | 2002-05-10 | Toppan Printing Co Ltd | 太陽電池用裏面保護シート |
JP2007109696A (ja) * | 2005-10-11 | 2007-04-26 | Toppan Printing Co Ltd | 太陽電池用裏面保護シート及び太陽電池モジュール |
JP2007150084A (ja) * | 2005-11-29 | 2007-06-14 | Dainippon Printing Co Ltd | 太陽電池モジュール用裏面保護シート、太陽電池モジュール用裏面積層体、および、太陽電池モジュール |
WO2010087461A1 (ja) * | 2009-01-29 | 2010-08-05 | 京セラ株式会社 | 太陽電池モジュールおよびその製造方法 |
JP2011046046A (ja) * | 2009-08-26 | 2011-03-10 | Fujifilm Corp | 積層フィルムおよび複合フィルム |
Also Published As
Publication number | Publication date |
---|---|
KR20140059197A (ko) | 2014-05-15 |
IN2014CN02271A (ja) | 2015-06-19 |
JPWO2013031752A1 (ja) | 2015-03-23 |
CN103765611A (zh) | 2014-04-30 |
US20140190557A1 (en) | 2014-07-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5540840B2 (ja) | 太陽電池裏面封止シート | |
JP5609115B2 (ja) | 太陽電池裏面封止材用フィルム、太陽電池裏面封止材および太陽電池モジュール | |
US20110108086A1 (en) | Backing sheet for photovoltaic modules and method for repairing same | |
US20090211631A1 (en) | Photoluminescent backing sheet for photovoltaic modules | |
KR101349734B1 (ko) | 태양전지 모듈용 백 시트 및 이를 포함하는 태양전지 모듈 | |
US10224445B2 (en) | Back sheet, method of manufacturing the same, solar cell module using the same and method of manufacturing solar cell | |
CA2673018A1 (en) | Backing sheet for photovoltaic modules and method for repairing same | |
CN103072349A (zh) | 一种太阳能电池背板复合膜 | |
WO2010061738A1 (ja) | 太陽電池用裏面封止シート用フィルム | |
JP2009200398A (ja) | 太陽電池用裏面封止用シートおよびそれを用いた太陽電池モジュール | |
WO2011068067A1 (ja) | 太陽電池裏面封止シート用フィルム | |
JP2017114937A (ja) | ポリイソシアネート硬化型接着性コーティング剤用ポリオール組成物、接着性コーティング剤、その硬化物、接着性シート、及び太陽電池モジュール | |
JP2013251427A (ja) | 太陽電池モジュール裏面封止シート用フィルム | |
JP5692706B2 (ja) | 太陽電池裏面封止シート用フィルム | |
JP2012186382A (ja) | 太陽電池用保護シートとその製造方法、太陽電池用バックシート部材、太陽電池用バックシート及び太陽電池モジュール | |
WO2013031752A1 (ja) | 太陽電池モジュールの製造方法、太陽電池裏面封止シートおよび太陽電池モジュール | |
JP2018026376A (ja) | 太陽電池モジュール用シート、および太陽電池モジュール | |
JP2014041900A (ja) | 太陽電池用保護材及び太陽電池 | |
JP2017110126A (ja) | ポリイソシアネート硬化型接着性コーティング剤用ポリオール組成物、接着性コーティング剤、その硬化物、接着性シート、及び太陽電池モジュール | |
JP2016175223A (ja) | ガスバリア性積層体、及びそれを用いた太陽電池モジュール並びに画像表示素子 | |
WO2010106907A1 (ja) | 太陽電池裏面封止材用フィルム、それを用いた太陽電池裏面封止材および太陽電池モジュール | |
JP2012104762A (ja) | 太陽電池用バックシート部材及び太陽電池モジュール | |
JP2013207181A (ja) | 太陽電池裏面封止シート及び太陽電池モジュール | |
JP2015149331A (ja) | 太陽電池モジュール | |
JP6596812B2 (ja) | 太陽電池用絶縁シート |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2012540199 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12826999 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14238608 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 20147003863 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12826999 Country of ref document: EP Kind code of ref document: A1 |