CN107534067A - Solar cell backboard film and the solar cell backboard and solar cell for having used the solar cell backboard film - Google Patents
Solar cell backboard film and the solar cell backboard and solar cell for having used the solar cell backboard film Download PDFInfo
- Publication number
- CN107534067A CN107534067A CN201680023781.3A CN201680023781A CN107534067A CN 107534067 A CN107534067 A CN 107534067A CN 201680023781 A CN201680023781 A CN 201680023781A CN 107534067 A CN107534067 A CN 107534067A
- Authority
- CN
- China
- Prior art keywords
- film
- solar cell
- cell backboard
- layers
- scs
- 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
- 229920006267 polyester film Polymers 0.000 claims abstract description 63
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 38
- 229920001225 polyester resin Polymers 0.000 claims abstract description 36
- 239000004645 polyester resin Substances 0.000 claims abstract description 35
- 230000011218 segmentation Effects 0.000 claims abstract description 28
- 239000010410 layer Substances 0.000 claims description 181
- 229920005989 resin Polymers 0.000 claims description 59
- 239000011347 resin Substances 0.000 claims description 59
- 239000002346 layers by function Substances 0.000 claims description 56
- -1 polypropylene Polymers 0.000 claims description 51
- 238000003475 lamination Methods 0.000 claims description 34
- 229920000728 polyester Polymers 0.000 claims description 19
- 229920001577 copolymer Polymers 0.000 claims description 13
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 229920000573 polyethylene Polymers 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 9
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical class FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 8
- 239000002033 PVDF binder Substances 0.000 claims description 8
- 150000002484 inorganic compounds Chemical class 0.000 claims description 8
- 229910010272 inorganic material Inorganic materials 0.000 claims description 8
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 8
- 239000010954 inorganic particle Substances 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 abstract description 86
- 230000000694 effects Effects 0.000 abstract description 20
- 210000004027 cell Anatomy 0.000 description 317
- 239000010408 film Substances 0.000 description 288
- 238000000034 method Methods 0.000 description 61
- 229920000139 polyethylene terephthalate Polymers 0.000 description 54
- 239000005020 polyethylene terephthalate Substances 0.000 description 54
- 239000004594 Masterbatch (MB) Substances 0.000 description 36
- 239000000203 mixture Substances 0.000 description 27
- 239000002994 raw material Substances 0.000 description 26
- 206010011732 Cyst Diseases 0.000 description 23
- 208000031513 cyst Diseases 0.000 description 23
- 238000011156 evaluation Methods 0.000 description 21
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 19
- 238000012360 testing method Methods 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 18
- 239000003566 sealing material Substances 0.000 description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 15
- 238000002844 melting Methods 0.000 description 14
- 230000008018 melting Effects 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000006750 UV protection Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- 150000002148 esters Chemical class 0.000 description 12
- 238000002156 mixing Methods 0.000 description 12
- 230000004888 barrier function Effects 0.000 description 11
- 239000007767 bonding agent Substances 0.000 description 11
- 239000011572 manganese Substances 0.000 description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 11
- 150000001336 alkenes Chemical class 0.000 description 10
- 230000008859 change Effects 0.000 description 10
- 239000003973 paint Substances 0.000 description 10
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 10
- 239000002253 acid Substances 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 9
- 239000011521 glass Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 230000032683 aging Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 238000010248 power generation Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 125000005442 diisocyanate group Chemical group 0.000 description 7
- 238000000605 extraction Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 238000002310 reflectometry Methods 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000002585 base Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 230000006911 nucleation Effects 0.000 description 6
- 238000010899 nucleation Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 241000894007 species Species 0.000 description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 5
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-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
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-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
- 230000015572 biosynthetic process Effects 0.000 description 4
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 4
- 238000007766 curtain coating Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 239000000806 elastomer Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- 150000002697 manganese compounds Chemical class 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000007790 solid phase Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- WKBPZYKAUNRMKP-UHFFFAOYSA-N 1-[2-(2,4-dichlorophenyl)pentyl]1,2,4-triazole Chemical compound C=1C=C(Cl)C=C(Cl)C=1C(CCC)CN1C=NC=N1 WKBPZYKAUNRMKP-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 3
- LCJHLOJKAAQLQW-UHFFFAOYSA-N acetic acid;ethane Chemical compound CC.CC(O)=O LCJHLOJKAAQLQW-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 150000002009 diols Chemical class 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000009998 heat setting Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229920000306 polymethylpentene Polymers 0.000 description 3
- 239000011116 polymethylpentene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 241001597008 Nomeidae Species 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- KTSFMFGEAAANTF-UHFFFAOYSA-N [Cu].[Se].[Se].[In] Chemical compound [Cu].[Se].[Se].[In] KTSFMFGEAAANTF-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 150000001339 alkali metal compounds Chemical class 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical compound FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 2
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- CBFCDTFDPHXCNY-UHFFFAOYSA-N icosane Chemical compound CCCCCCCCCCCCCCCCCCCC CBFCDTFDPHXCNY-UHFFFAOYSA-N 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 229940071125 manganese acetate Drugs 0.000 description 2
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000012071 phase Substances 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
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- 150000003609 titanium compounds Chemical class 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229940058015 1,3-butylene glycol Drugs 0.000 description 1
- DBYZNDXPPVJDNG-UHFFFAOYSA-N 1-butyl-1-isocyanatocyclohexane Chemical class CCCCC1(N=C=O)CCCCC1 DBYZNDXPPVJDNG-UHFFFAOYSA-N 0.000 description 1
- UTPYTEWRMXITIN-YDWXAUTNSA-N 1-methyl-3-[(e)-[(3e)-3-(methylcarbamothioylhydrazinylidene)butan-2-ylidene]amino]thiourea Chemical compound CNC(=S)N\N=C(/C)\C(\C)=N\NC(=S)NC UTPYTEWRMXITIN-YDWXAUTNSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- QFGCFKJIPBRJGM-UHFFFAOYSA-N 12-[(2-methylpropan-2-yl)oxy]-12-oxododecanoic acid Chemical compound CC(C)(C)OC(=O)CCCCCCCCCCC(O)=O QFGCFKJIPBRJGM-UHFFFAOYSA-N 0.000 description 1
- GTACSIONMHMRPD-UHFFFAOYSA-N 2-[4-[2-(benzenesulfonamido)ethylsulfanyl]-2,6-difluorophenoxy]acetamide Chemical compound C1=C(F)C(OCC(=O)N)=C(F)C=C1SCCNS(=O)(=O)C1=CC=CC=C1 GTACSIONMHMRPD-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- NEQFBGHQPUXOFH-UHFFFAOYSA-N 4-(4-carboxyphenyl)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1C1=CC=C(C(O)=O)C=C1 NEQFBGHQPUXOFH-UHFFFAOYSA-N 0.000 description 1
- 125000004203 4-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 101710130081 Aspergillopepsin-1 Proteins 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- PWFCXQJXVJZYMH-UHFFFAOYSA-N C(C=1C(C(=O)OCCCCCCCC)=CC=CC1)(=O)OCCCCCCCC.C1(=CC=CC=C1)C1CCC2=CC=CC=C12 Chemical compound C(C=1C(C(=O)OCCCCCCCC)=CC=CC1)(=O)OCCCCCCCC.C1(=CC=CC=C1)C1CCC2=CC=CC=C12 PWFCXQJXVJZYMH-UHFFFAOYSA-N 0.000 description 1
- DPPZSMGCLZOTKW-UHFFFAOYSA-N C(C=1C(C(=O)OCCCCCCCC)=CC=CC1)(=O)OCCCCCCCC.C1=CC=CC2=CC3=CC=CC=C3C=C12 Chemical compound C(C=1C(C(=O)OCCCCCCCC)=CC=CC1)(=O)OCCCCCCCC.C1=CC=CC2=CC3=CC=CC=C3C=C12 DPPZSMGCLZOTKW-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 102100031007 Cytosolic non-specific dipeptidase Human genes 0.000 description 1
- 229920002449 FKM Polymers 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- KLDXJTOLSGUMSJ-JGWLITMVSA-N Isosorbide Chemical compound O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 KLDXJTOLSGUMSJ-JGWLITMVSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920003189 Nylon 4,6 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920000007 Nylon MXD6 Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- BELBBZDIHDAJOR-UHFFFAOYSA-N Phenolsulfonephthalein Chemical group C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2S(=O)(=O)O1 BELBBZDIHDAJOR-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 229920006361 Polyflon Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 1
- URFLCXSTNZSALZ-UHFFFAOYSA-N [F].C(C(=C)C)(=O)O Chemical compound [F].C(C(=C)C)(=O)O URFLCXSTNZSALZ-UHFFFAOYSA-N 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 1
- 150000001399 aluminium compounds Chemical class 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cis-cyclohexene Natural products C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004855 decalinyl group Chemical group C1(CCCC2CCCCC12)* 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Natural products C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- FYIBGDKNYYMMAG-UHFFFAOYSA-N ethane-1,2-diol;terephthalic acid Chemical compound OCCO.OC(=O)C1=CC=C(C(O)=O)C=C1 FYIBGDKNYYMMAG-UHFFFAOYSA-N 0.000 description 1
- 229920006226 ethylene-acrylic acid Polymers 0.000 description 1
- UKFXDFUAPNAMPJ-UHFFFAOYSA-N ethylmalonic acid Chemical compound CCC(C(O)=O)C(O)=O UKFXDFUAPNAMPJ-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000003983 fluorenyl group Chemical class C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002291 germanium compounds Chemical class 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 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
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Natural products OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 229960002479 isosorbide Drugs 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000007759 kiss coating Methods 0.000 description 1
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 1
- 239000011654 magnesium acetate Substances 0.000 description 1
- 235000011285 magnesium acetate Nutrition 0.000 description 1
- 229940069446 magnesium acetate Drugs 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- ZIYVHBGGAOATLY-UHFFFAOYSA-N methylmalonic acid Chemical compound OC(=O)C(C)C(O)=O ZIYVHBGGAOATLY-UHFFFAOYSA-N 0.000 description 1
- 229910021424 microcrystalline silicon Inorganic materials 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- ABMFBCRYHDZLRD-UHFFFAOYSA-N naphthalene-1,4-dicarboxylic acid Chemical class C1=CC=C2C(C(=O)O)=CC=C(C(O)=O)C2=C1 ABMFBCRYHDZLRD-UHFFFAOYSA-N 0.000 description 1
- DFFZOPXDTCDZDP-UHFFFAOYSA-N naphthalene-1,5-dicarboxylic acid Chemical class C1=CC=C2C(C(=O)O)=CC=CC2=C1C(O)=O DFFZOPXDTCDZDP-UHFFFAOYSA-N 0.000 description 1
- HRRDCWDFRIJIQZ-UHFFFAOYSA-N naphthalene-1,8-dicarboxylic acid Chemical compound C1=CC(C(O)=O)=C2C(C(=O)O)=CC=CC2=C1 HRRDCWDFRIJIQZ-UHFFFAOYSA-N 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical class C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229960003531 phenolsulfonphthalein Drugs 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001490 poly(butyl methacrylate) polymer Polymers 0.000 description 1
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 150000003388 sodium compounds Chemical class 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229960005137 succinic acid Drugs 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 239000000326 ultraviolet stabilizing agent Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
-
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/12—Photovoltaic modules
-
- 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
Abstract
A kind of solar cell backboard film, it is the polyester film containing cavity that the overall voidage of film is more than 10%, on the thickness direction section of the polyester film, the line vertical with face direction is drawn from a surface of film to another surface, this is connected into the line on another surface in a thickness direction with following 3 points (film thickness direction central points (C1 points) from a surface, film thickness direction central point and the intermediate point (1 point of C2) on film surface, (2 points of C2)) carry out 4 deciles, respectively the line (segmentation horizontal line) parallel with the face direction of film is drawn by above-mentioned 3 points, will by C1 points segmentation horizontal line present on every 1 empty average area be set to Sc (μm2), will by 1 point of C2 segmentation horizontal line present on every 1 empty average area be set to Scs (μm2), will by 2 points of C2 segmentation horizontal line present on every 1 empty average area be set to Scs ' (μm2) when, at least one of (Sc/Scs), (Sc/Scs ') they are less than more than 1.1 35, form the terminal carboxyl group amount of polyester resin of polyester film as below 35 equivalents/ton.The present invention, which provides, to be had concurrently excellent output and improves the solar cell backboard of effect and adaptation with film and the solar cell backboard and solar cell that are formed using the solar cell backboard with film.
Description
Technical field
The present invention relates to solar cell backboard film and the solar-electricity of the solar cell backboard film is used
Pond backboard and solar cell.
Background technology
In recent years, as the semipermanent and free of contamination follow-on energy, the solar power generation as clean energy resource enjoys
Gaze at, solar cell is promptly popularized.
The representative of common solar cell is formed shown in Figure 1.Solar cell is utilized by generating element 3
On the material that sealing material 2 transparent EVA (vinyl-vinyl acetate copolymer) etc. is sealed, the transparent base such as bonding glass
Plate 4 and it is referred to as the resin sheet of solar cell backboard 1 to form.Sunshine is directed into solar energy through transparency carrier 4
In battery.The sunshine being directed into solar cell is absorbed by generating element 3, and absorbed luminous energy is converted into electric energy.Conversion
The lead (not shown in figure 1) that is connected with generating element 3 of electric energy draw, be used for various electrical equipments.Here, it is so-called too
It is positive can battery back-sheet 1, be disposed on relative to the sun backrest surface side compared with generating element 3, be not directly connected to generating element 3
Sheet element.System, each component on the solar cell, it is proposed that various schemes, but on solar cell backboard 1,
Mainly polyethylene-based, Polyester, the film of the resin-made of fluorine system are used.(with reference to patent document 1~3)
For conventional solar cell backboard, develop by making to have passed through the light between solar battery cell
Reflected with solar cell backboard, and be introduced to unit (cell) to improve the technology of the efficiency of solar module.Specifically
For, it is proposed that following technologies：Reflecting layer is formed by white pearl and white adhesive in substrate surface, improves the skill of module efficiency
Art；By formed comprising cavity layer, so as to provide the technology of the solar cell backboard of high reflection (with reference to patent document 4,
5)。
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 11-261085 publications
Patent document 2：Japanese Unexamined Patent Publication 11-186575 publications
Patent document 3：Japanese Unexamined Patent Publication 2006-270025 publications
Patent document 4：Japanese Unexamined Patent Publication 2012-84670 publications
Patent document 5：No. 4766192 publications of Japanese Patent Publication No.
The content of the invention
Invent problem to be solved
However, as described in Patent Document 4, carrying for reflecting layer is formed by white pearl and white adhesive in substrate surface
In case, there are following problems：Due to the EVA using white pearl, therefore with the sealing material as solar battery cell, backboard system
As when the adaptation of other component films that bonds reduce.In addition, as described in Patent Document 5, the layer in cavity is being included by being formed
To be made in the motion of the backboard of high reflection, although obtaining the effect that certain generating efficiency improves, there is solar energy
The generating efficiency of battery module improves the problem of still insufficient such.
For solving the method for problem
Therefore, the present invention is in view of the background of such prior art, there is provided has excellent output concurrently and improves effect and closely sealed
The solar cell backboard film of property and the solar cell backboard and solar energy for having used the solar cell backboard film
Battery.
That is, it is that film overall voidage is more than 10% to contain the present invention relates to a kind of solar cell backboard film
The polyester film in cavity, on the thickness direction section of the polyester film, drawn and face side from a surface of film to another surface
To vertical line, the line that this is connected to another surface from a surface carries out 4 deciles with following 3 points in a thickness direction, point
Not Jing Guo above-mentioned 3 points draw the line (segmentation horizontal line) parallel with the face direction of film, above-mentioned 3 points are film thickness direction central points
(C1 points), film thickness direction central point and intermediate point (C2-1 points), (the C2-2 points) on film surface, by by the segmentation water of C1 points
Every 1 empty average area present on horizontal line be set to Sc (μm2), by by every present on the segmentation horizontal line of C2-1 points
1 empty average area be set to Scs (μm2), empty it will be averaged by every 1 present on the segmentation horizontal line of C2-2 points
Area be set to Scs ' (μm2) when, at least one of (Sc/Scs), (Sc/Scs ') they are less than more than 1.1 35, form polyester film
Polyester resin terminal carboxyl group amount for below 35 equivalents/ton.
The effect of invention
According to the present invention it is possible to provide compared with conventional solar cell backboard film and solar cell backboard, with
The closely sealed retentivity for other component films that EVA resin, backboard as the sealing material of solar battery cell are bonded when processing
(hereinafter referred to as adaptation) is excellent, is further imitated by carrying the solar cell backboard of the present invention and generating high than ever
The solar cell of rate (hereinafter referred to as output raising property).
Brief description of the drawings
Fig. 1 is the one of the composition for schematically showing the solar cell for having used the solar cell backboard film of the present invention
The sectional view of example.
Fig. 2 is the figure in the thickness direction section for schematically showing solar cell backboard film.
Fig. 3 is one of the composition for schematically showing the solar cell backboard film of the invention that two sides has functional layer
Sectional view.
Fig. 4 for schematically show used the present invention it is solar cell backboard film, simultaneously have via adhesive linkage
The sectional view of one of the composition of the solar cell backboard of active ergosphere.
Fig. 5 has used solar cell backboard film, the two sides of the present invention to have via adhesive linkage to schematically show
The sectional view of one of the composition of the solar cell backboard of active ergosphere.
Embodiment
The solar cell backboard film of the present invention, it is characterised in that meet：It is that the overall voidage of film is more than 10%
Containing cavity polyester film, on the thickness direction section of the polyester film, from a surface of film to another surface draw
The line vertical with face direction, this is connected into the line on another surface in a thickness direction with following 3 points of (film thicknesses from a surface
Direction central point (C1 points), film thickness direction central point and intermediate point (C2-1 points), (the C2-2 points) on film surface) 4 deciles are carried out,
The line (segmentation horizontal line) parallel with the face direction of film is drawn by above-mentioned 3 points respectively, by by the segmentation horizontal line of C1 points
Present on every 1 empty average area be set to Sc (μm2), by by every 1 present on the segmentation horizontal line of C2-1 points
Cavity average area be set to Scs (μm2), by every 1 empty centre plane present on the segmentation horizontal line by C2-2 points
Product be set to Scs ' (μm2) when, at least one of (Sc/Scs), (Sc/Scs ') they are less than more than 1.1 35, form polyester film
The terminal carboxyl group amount of polyester resin is below 35 equivalents/ton.
Hereinafter, the solar cell backboard of the present invention is illustrated with film.
The polyester containing cavity that the solar cell backboard of the present invention is more than 10% with the voidage that film is film entirety
Film, it is using polyester resin as principal component.Here it is so-called using polyester resin as principal component, refer to relative to the composition present invention's
The resin of polyester film, comprise more than 50 mass % polyester resin.
Polyester resin used in the present invention (can below, be collectively referred to as by 1) dicarboxylic acids or its ester formative derivative
" dicarboxylic acid component ") and diol component polycondensation, 2) intramolecular has the compound of carboxylic acid or carboxylic acid derivates and hydroxyl
Polycondensation and 1) combination 2) obtain.In addition, the polymerization of polyester resin can be carried out by conventional method.
In 1), as dicarboxylic acid component, malonic acid, butanedioic acid, glutaric acid, adipic acid, suberic acid, the last of the ten Heavenly stems two can be enumerated
The aliphatic such as acid, dodecanedioic acid, dimeric dibasic acid, eicosane diacid, pimelic acid, azelaic acid, methylmalonic acid, ethyl malonic acid two
The alicyclic dicarboxylic acids such as carboxylic acids, adamantane acid, adipic acid, cyclohexane cyclohexanedimethanodibasic, decahydronaphthalenes dioctyl phthalate,
Terephthalic acid (TPA), M-phthalic acid, phthalic acid, 1,4- naphthalenedicarboxylic acids, 1,5- naphthalenedicarboxylic acids, 2,6- naphthalenedicarboxylic acids, 1,8-
Naphthalenedicarboxylic acid, 4,4 '-biphenyl dicarboxylic acid, 4,4 '-diphenyl ether dioctyl phthalate, 4,4 '-diphenyl sulfone dioctyl phthalate, M-phthalic acid 5-
Sodium sulfonate, phenyl indan dioctyl phthalate (Off ェ ニ Le エ Application ダ Application ジ カ Le ボ Application acid), anthracene dioctyl phthalate, luxuriant and rich with fragrance dioctyl phthalate, 9,9 '-it is bis-
The aromatic dicarboxylic acids or its ester derivant etc. such as (4- carboxyl phenyls) fluorenic acid are as representative examples.In addition, they can individually make
With can also use a variety of.
Further, it is also possible to using make the hydroxyl acids such as l- lactides, d- lactides, hydroxybenzoic acid and its derivative, by
Multiple materials being formed by connecting of the hydroxyl acids etc. and at least one carboxyl terminal of above-mentioned dicarboxylic acid component are condensed two formed
Carboxyl compound.
Next, as diol component, ethylene glycol, 1,2-PD, 1,3-PD, BDO, 1 can be enumerated,
Ester ring type glycol, the bis-phenols such as the aliphatic diols such as 2- butanediols, 1,3 butylene glycol, cyclohexanedimethanol, spiral shell glycol, isobide
A, the aromatic diol such as 1,3- benzene dimethanols, 1,4- benzene dimethanols, 9,9 '-bis- (4- hydroxy phenyls) fluorenes is as representative examples.In addition,
They can be used alone, and can also use as needed a variety of.In addition it is also possible to using making glycols and above-mentioned diol component
At least one C-terminal condensation and formed dihydroxy compounds.
In 2), there is the example of the compound of carboxylic acid or carboxylic acid derivates and hydroxyl as an intramolecular, l- can be enumerated
The carboxylic acids such as lactide, d- lactides, hydroxybenzoic acid and its derivative, hydroxyl acids oligomer, make carboxylic acid and dicarboxyl
Compound that the carboxyl condensation of acid forms etc..
As the polyester resin obtained by above-mentioned 2 composition, it is adapted to use by polyethylene terephthalate, poly- 2,6- naphthalenes
Naphthalate, PTT, polybutylene terephthalate (PBT), the poly- methylene of 1,4- cyclohexene two
The polyester resin that base terephthalate and their mixture are formed, it is highly preferred that going out from the well such viewpoint of Film making properties
Hair, preferably polyethylene terephthalate, poly- NDA glycol ester, from the more excellent sun of adaptation is made
It can be set out in terms of battery back-sheet film, most preferably polyethylene terephthalate.
In the solar cell backboard film of the present invention, the terminal carboxyl group amount for forming the polyester resin of polyester film is worked as 35
It is necessary below amount/ton.Below preferably 30 equivalents/ton, below more preferably 25 equivalents/ton, more preferably 20 work as
Below amount/ton, below particularly preferably 17 equivalents/ton.
In the past, for requiring the purposes with the adaptation of the adherend such as bonding agent, it is known that by the pole for improving closely sealed surface
Property, so as to more improve the compatibility with the energy of the adherend such as bonding agent.That is, for solar cell backboard film
Speech, if improving the terminal carboxyl group amount for the polyester resin for forming film, the polarity for having the polyester resin for forming film uprises, with EVA
The tendency improved Deng the adaptation of sealant.However, the present inventor etc. has made intensive studies, as a result find, if above-mentioned end
End carboxyl amount is more than 35 equivalents/ton, although then excellent adhesion at initial stage, the humidity resistance of polyester film reduces, and as a result exists
In the case of outdoor long-term placement, film is brittle, and closed surface is destroyed, and as a result the adaptation with EVA, other component films reduces.This
It is outer find due to it is damp and hot deterioration and film changes colour, reflectivity is damaged, so as to export raising property also reduce sometimes.The present invention is too
It is positive can battery back-sheet with film as described later, by by the empty size control contained in film in specific size, so as to i.e.
Make the terminal carboxyl group amount of the polyester resin of composition polyester film below 35 equivalents/ton, can also to improve adaptation, can have concurrently with
Toward both with being difficult to, excellent adaptation and humidity resistance and output improve characteristic.
In addition, the lower limit on terminal carboxyl group amount, as long as in the range of the effect of the present invention is not damaged, just without special
Limit, more than more preferably 7 equivalents/ton, more than more preferably 11 amounts/ton.It is less than 7 equivalents/ton in terminal carboxyl group amount
In the case of, the polar terminals base deficiency on surface, the absolute value of dhering strength diminish sometimes, and adaptation of the invention improves effect not
Foot.
In addition, the inherent viscosity IV for forming the polyester resin of polyester film is preferably more than 0.63dl/g below 0.80dl/g,
More preferably more than 0.65dl/g, more preferably more than 0.67dl/g.In above-mentioned inherent viscosity IV less than 0.63dl/g's
In the case of, the dispersiveness for the nucleator for forming cavity reduces, and as a result adaptation reduces sometimes.In addition, polyester film sometimes is resistance to
Humid also reduces.On the other hand, in the case where inherent viscosity IV is more than 0.80dl/g, the extrudability change of polyester resin sometimes
Difference.Therefore, by the way that the inherent viscosity IV for forming the polyester resin of polyester film is set into more than 0.63dl/g below 0.80dl/g, from
And it can be made and have adaptation and humidity resistance, the solar cell backboard film of processability concurrently.
Further, the number-average molecular weight Mn of polyester resin is preferably 8000~40000, and number-average molecular weight Mn is more preferably
9000~30000, more preferably 10000~20000.In the case where above-mentioned number-average molecular weight Mn is less than 8000, sometimes
The durability such as humidity resistance, heat resistance reduce.On the other hand, if number-average molecular weight Mn is more than 40000, polymerization is difficult, i.e.,
Make to polymerize, the extrudability of polyester resin is also deteriorated sometimes.
Further in polyester resin, Mn or Na are preferably comprised as metallic element.It is preferred that models of the Mn in 50~200ppm
In enclosing, Na in the range of 10~80ppm by comprising.More preferably Mn and Na within the above range by comprising.If in polyester tree
In fat Mn or Na within the above range by comprising, then the hydrolysis of film is suppressed, can be made have concurrently excellent humidity resistance with it is close
The solar cell backboard film of conjunction property, output raising property.
The polyester film of the present invention internally has cavity.So-called in the present invention " cavity ", expression use slicer, make film
Do not collapse and vertically cut off relative to film surface direction in a thickness direction, the section of film is observed using electron microscope
When, the sectional area observed by the observation image of acquisition is 0.1 μm2Space above.The space of the polyester film of the present invention
Rate (cavity ratio shared in film section) is for 10% above is necessary.More preferably voidage is more than 15%, further
Preferably more than 20%.The overall voidage of film can be obtained by the area of the hollow sectors in observation image.Voidage
The detailed content of assay method is aftermentioned.If voidage is less than 10%, reflectivity deficiency, output raising property reduces.In addition such as
Fruit space is very few, then stress concentration reduces in the closely sealed interface with other component films, the adaptation of solar cell backboard film.
Polyester film be internally formed cavity method be not particularly limited, preferably by make in polyester film containing cavity into
Stretched after core agent to be formed.Structure is difficult to control come the cavity formed by foaming agent etc., sometimes solar battery back
The adaptation of plate film reduces.
Here as empty nucleator, can enumerate the organic system such as olefin-based resin incompatible with polyester resin nucleator,
Inorganic system's nucleator such as inorganic particulate, bead.From by aftermentioned manufacture method, easily make the shape in cavity in a thickness direction
Inclined aspect is kept to set out, as empty nucleator, preferably organic system nucleator.By making the shape in cavity in thickness side
Keep tilting upwards, so as to improve the adaptation of solar cell backboard film.
As organic system nucleator, olefin-based resin, nylon 6, nylon66 fiber, NYLON610, nylon 11, Buddhist nun can also be used
Polyamide series resin, polystyrene, acrylonitritrile-styrene resin, the propylene such as dragon 12, nylon 46, nylon MXD 6, nylon 6T
The propylene such as the phenylethylene resin series such as nitrile-BS, polymethyl methacrylate, polybutyl methacrylate
Fluorine resin, polyphenylene sulfide, polysulfones, polyether sulfone, polyarylate, the polyethers such as acid system resin, polytetrafluoroethylene (PTFE), poly- 1,1- difluoroethylenes
The special engineering plastics such as acid imide or the different types of polyester tree incompatible with forming the polyester resin of polyester film of the invention
Fat etc..As olefin-based resin, such as polypropylene, polyethylene, high density polyethylene (HDPE), low density polypropylene, ethene-the third can be enumerated
The cyclic polyolefin trees such as the aliphatic poly such as alkene copolymer, polymethylpentene olefin resin, cyclic olefin polymer, cyclic olefine copolymer
Fat etc., wherein, from by forming fine cavity, reflectivity is more improved, so as to which solar cell backboard is carried with the output of film
The high excellent aspect of property is set out, and as organic system nucleator, preferably Vicat softening point is more than 140 DEG C of olefin-based resin, more excellent
Elect more than 180 DEG C of olefin-based resin as.It is nucleated using olefin-based resin of the Vicat softening point less than 140 DEG C as organic system
In the case of agent, empty shape excessively coarsening, solar cell backboard film adaptation, output raising property reduce sometimes.
In addition, dosage is nucleated as the organic system included in polyester film, relative to the gross mass of polyester film, preferably 1
Below the mass % of more than quality % 30, more preferably more than 4 mass % below 15 mass %, more preferably 8 mass % with
Upper below 13 mass %.Here in the case that the organic system nucleation dosage included in polyester film is less than 1 mass %, although too
The excellent adhesion of positive energy battery back-sheet film, but reflectivity reduces sometimes, it is poor so as to export raising property.On the other hand, having
In the case that machine is tied to form core dosage more than 30 mass %, although output raising property is excellent, cavity is excessive sometimes, adaptation
Difference.
Further using in the case of organic system nucleator, preferably simultaneously and dispersing aid is used.It is excellent as dispersing aid
Choosing has the polyester-based elastomer of polyether structure, bending skeleton structure, bulky hexamethylene skeleton structure etc., amorphous using copolymerization
Property polyester resin.From the aspect for more improving dispersiveness, and with the mode of two or more dispersing aid it is also preferred that using.This
The outer dispersing aid amount as included in polyester film, relative to the gross mass of polyester film, 10 matter preferably more than 1 mass %
Below % is measured, more preferably more than 2 mass % below 8 mass %, more preferably more than 3 mass % below 6 mass %.This
In in the case that dispersing aid amount included in polyester film is less than 1 mass %, sometimes as the not sufficiently effective of dispersing aid,
Adaptation reduces.On the other hand, in the case where dispersing aid amount is more than 10 mass %, dispersiveness excessively improves, and has on the contrary
When adaptation reduce.Further as crystalline reduction, the humidity resistance of possible polyester film also reduces.
The solar cell backboard film of the present invention is following polyester films, the observation image in the thickness direction section of polyester film
Interior cavity satisfaction：The line vertical with face direction is drawn from a surface of film to another surface, will be connected from a surface
The line on another surface in a thickness direction with following 3 points (film thickness direction central point (C1 points), film thickness direction central point with
Intermediate point (C2-1 points), (the C2-2 points) on film surface) 4 deciles are carried out, it is parallel with the face direction of film by above-mentioned 3 points extractions respectively
Line (segmentation horizontal line), by by C1 points segmentation horizontal line present on every 1 empty average area be set to Sc (μ
m2), will by C2-1 points segmentation horizontal line present on every 1 empty average area be set to Scs (μm2), C2-2 will be passed through
Point segmentation horizontal line present on every 1 empty average area be set to Scs ' (μm2) when, in (Sc/Scs), (Sc/Scs ')
At least one be less than more than 1.1 35.Preferably less than more than 1.5 20, more preferably less than more than 2.0 15, it is further excellent
Elect less than more than 2.5 10 as.In addition, on Sc (μm2)、Scs(μm2)、Scs’(μm2) the detailed content for seeking method, hereinafter
Description.
The present inventor etc. has made intensive studies, and as a result finds, if in the polyester film containing cavity, makes contained in film
The empty size that has so that at least one of (Sc/Scs), (Sc/Scs ') be less than more than 1.1 35 mode in thickness side
Keep tilting upwards, then adaptation astoundingly improves.The effect by how the reasons why cause and also imperfectly understand, inventor
It is as follows Deng presumption.If (Sc/Scs), (Sc/Scs ') are both less than 1.1, (contained empty size is in thickness direction in film
Tilt small), then fine cavity has been internally formed even in polyester film, make the present invention solar cell backboard by the use of film and as
When other component films that EVA, the backboard of the sealing material of solar battery cell are bonded when making are closely sealed, closed surface is peeled off
Power is excessively uniformly applied in film surface, therefore the adaptation of solar cell backboard film reduces.On the other hand, if (Sc/
Scs), (Sc/Scs ') is above 35 (contained empty size is big in the inclination of thickness direction in film), then in thickness x cross sectional
Cyst areas deviation become it is too much, be easy to be peeled off from thick hollow sectors, as a result adaptation reduce.Additionally due to
Cavity causes the reflectivity of light to reduce, therefore the solar cell backboard of the present invention is also reduced with the output raising property of film, it is impossible to
Improve the generating output of the solar cell carried.
In the present invention, on (Sc/Scs), (Sc/Scs '), can by the species of above-mentioned empty nucleator, cavity into
The cooling velocity of the polyester resin after melting extrusion when core dosage, dispersion dosage or film manufacture adjusts the shape in cavity.Example
The olefin-based resin that Vicat softening point is more than 140 DEG C is such as used to make cavity nucleation dosage as organic system nucleator and disperse
Amount of auxiliary increases in preferable scope, and so as to empty more uniformly miniaturization, the empty quantitative change in film is more, (Sc/Scs),
(Sc/Scs ') diminishes.On the other hand, by making cavity nucleation dosage diminish with dispersing aid amount in preferable scope, so that
The deviation of cyst areas in thickness x cross sectional becomes big, and (Sc/Scs), (Sc/Scs ') become big.In addition, melting when if film manufactures
The cooling velocity of polyester resin after extrusion is fast, then has what empty size contained in film diminished in the inclination of thickness direction
Tendency, (Sc/Scs), (Sc/Scs ') diminish.In addition, if cooling velocity is slow, there is empty size contained in film to exist
The tendency that the inclination of thickness direction diminishes, (Sc/Scs), (Sc/Scs ') become big.
That is, solar cell backboard film of the invention is by by the species of empty nucleator of inside, empty nucleator
The cooling velocity of the polyester resin after melting extrusion when amount, dispersion dosage or film manufacture is adjusted in preferable scope,
So that at least one of empty (Sc/Scs), (Sc/Scs ') inside polyester film is less than more than 1.1 35, can make
Into the solar cell backboard film for having excellent adaptation and output raising property concurrently.
In addition, different from the value of (Sc/Scs ') at (Sc/Scs), only one is in the feelings of less than more than 1.1 35 scope
, can be with by making (Sc/Scs) or (Sc/Scs ') to be in the face of preferable scope positioned at the surface side for expecting effect of the present invention under condition
More improve adaptation and output raising property.For example, in the case where only (Sc/Scs) is less than more than 1.1 35, so that sealing
The solar cell backboard film that the mode that material is located at the film face side close to Scs configures can have adaptation concurrently and output improves
Property.
Here, if (Sc/Scs) and (Sc/Scs ') all in less than more than 1.1 35 scope, in solar cell
Two surface excellent adhesions of backboard film, thus for example make the present invention solar cell backboard film one side with it is other
Component film bonds, and in making another side and being formed as solar battery cell directly bonding, is obtained on the surface of film two excellent
Adaptation, therefore more preferably.
Light between the solar cell backboard film of the present invention can will pass through solar battery cell by one side is sharp
Spread with solar cell backboard while making its reflection, so as to which light be recycled and raising generating output.Here from raising light
Diffusivity from the viewpoint of, preferably make the mode containing inorganic particulate in the polyester and resin composition of composition polyester film.
As inorganic particulate used herein above, can enumerate for example, calcium carbonate, magnesium carbonate, zinc carbonate, titanium oxide, oxidation
Zinc, cerium oxide, magnesia, barium sulfate, zinc sulphide, calcium phosphate, aluminum oxide, mica (mica), mica (Cloud female), talcum, clay,
Kaolin, lithium fluoride and calcirm-fluoride etc..Further among those, it is excellent from the viewpoint of the handling ease with polyester resin
Calcium carbonate, magnesium carbonate, titanium oxide, zinc oxide, barium sulfate are elected as, from the UV resistant for improving solar cell backboard film simultaneously
From the viewpoint of property, more preferably titanium oxide.In addition titanium oxide is used as, such as anatase-type titanium oxide and rutile-type can be enumerated
The titanium oxide of crystal type as titanium oxide.It is excellent from the viewpoint of the specific refractivity of expansion and used polyester is such
The titanium oxide that refractive index is more than 2.7 is selected, while from the viewpoint of ultra-violet resistance is more excellent, more preferably using rutile-type
Titanium oxide.
That is, solar cell backboard film of the invention is by making above-mentioned composition have the polyester resin of empty polyester film
Contain inorganic particulate in composition, so as to more improve output raising property.
As the mode containing inorganic particulate in the resin combination for making composition polyester film here, it is not particularly limited, it is excellent
Elect the laminated construction for having the above that haves three layers as, and form two top layers and (top layer is set to P2 layers, another top layer is set to
P2 ' layers) the resin combination of at least one of resin combination contain inorganic particulate, the layer without top layer is (by the layer
It is set to P1 layers) structure containing above-mentioned empty nucleator, 3 layers of lamination knot being more preferably made up of P2 layers/P1 layers/P2 ' layers
Structure.
In addition if making to contain inorganic particulate in P2 layers and P2 ' layers, then they turn into empty nucleator, sometimes in top layer
Also a small amount of cavity is contained.Now, the voidage (Ps) of P2 layers and the voidage (Ps ') of P2 ' layers are preferably less than 5.0%, more
Preferably less than 4.0%, more preferably less than 3.5%.In the voidage of P2 layers and P2 ' layers (Ps) and (Ps ') above
In the case of 5.0%, the deviation of the cyst areas of its top layer side becomes unstable, and adaptation reduces sometimes.By in the present invention
Solar cell backboard film in, make P2 layers voidage (Ps) and P2 ' layers voidage (Ps ') be less than 5.0%, so as to
Adaptation can not be reduced, the reflectivity of P1 layers not offset respectively with the diffusivity of P2 layers or P2 ' layers, can be effectively sharp
With, can more improve output improve property.Further in the film of polyester film, it is also prevented from what is brought by empty nucleator
Process pollutes.
In addition, only one meets less than 5.0% in the voidage (Ps ') for the voidage of P2 layers (Ps) and P2 ' layers
In the case of film, the solar battery cell for expecting effect of the present invention is located at by the P2 layers or P2 ' layers that make to meet above range
Side, so as to more improve adaptation.
The present invention solar cell backboard film top layer with containing the above-mentioned inorganic grain with ultra-violet resistance
The P2 layers of son or the structure of P2 ' layers can have output concurrently and improve effect with suppressing the ultraviolet institute by contact solar cell unit
Ultra-violet resistance as the discoloration of the solar cell backboard film brought, it can be said that being preferred mode.In addition
Both laminated construction with inorganic particulate of the resin combination of P2 layers and P2 ' layers are formed even for contact solar cell
The reflected light of the ultraviolet at the back side can also play the effect of the ultra-violet resistance of above-mentioned solar battery cell side, it may be said that be
Preferred mode.
On the principal component of P2 layers and P2 ' layers (following, to be collectively expressed as P2 layers sometimes), as long as not damaging the present invention's
In the range of effect, it is possible to freely select.Such as can by make P2 layers principal component be and P1 layer identical polyester trees
Fat, so as to which P1 layers and the solar cell backboard film of the excellent adhesion of P2 bed boundarys be made.In addition by making the masters of P2 layers
Composition is more highly filled with inorganic particulate using acrylic resin etc. so as to be set by rubbing method on P1 layers
P2 layers, the solar cell backboard film for having excellent adaptation and output raising concurrently is made.
In the case where the solar cell backboard of the present invention uses the structure with above-mentioned P2 layers and/or P2 ' layers with film,
The thickness of P1 layers is being set to T1 (μm), the thickness of P2 layers is set to T2 (μm), the thickness of P2 ' layers is being set to T2 ' (μm), by structure
The inorganic particle concentrations included into the resin combination of P2 layers are set to W2 (quality %), form the resin combination institute of P2 ' layers
Comprising inorganic particle concentrations be set to W2 ' (quality %) when, at least one of (T2/T1) × W2, (T2 '/T1) × W2 ' are preferred
Meet less than more than 0.35 1.50.More preferably less than more than 0.75 1.40, more preferably less than more than 0.90 1.20.
Here, in the case where (T2/T1) × W2, (T2 '/T1) × W2 ' are both less than 0.35, P2 layers and P2 ' layers sometimes
Diffusivity deficiency, any layer is arranged at solar battery cell side, solar cell backboard is all dropped with the output raising property of film
It is low.On the other hand, in the case where (T2/T1) × W2, (T2 '/T1) × W2 ' are above 1.50, P2 layers, the diffusivity of P2 ' layers
It become too strong, reaching the amount of the light of P1 layers can be reduced, therefore on the contrary reduce sometimes output raising property.
In addition, only one film for meeting less than more than 0.35 1.50 in for (T2/T1) × W2, (T2 '/T1) × W2 '
In the case of, the solar battery cell side for expecting effect of the present invention is located at by the P2 layers or P2 ' layers that make to meet above range, from
And it can more improve output raising property.For example, in the case where only (T2/T1) × W2 is less than more than 0.35 1.50, with hair
The solar cell backboard film that the mode that the sealing material of electric unit is located at P2 layers side configures can have adaptation concurrently, output improves
Property.If (T2/T1) × W2, (T2 '/T1) × W2 ' they are less than more than 0.35 1.50, output raising property is especially excellent, because
This is preferred.
In addition, in the case where above-mentioned P1 layers also include inorganic particulate, from the excellent of maintenance solar cell backboard film
Adaptation from the viewpoint of, inorganic particle concentrations are preferably below 10 mass % more preferably 5 relative to the gross mass of P1 layers
Below quality %, more preferably below 3 mass %.If the content of inorganic particles of P1 layers more than 10 mass %, polyester film
(Sc/Scs) or (Sc/Scs ') diminishes, and the adaptation of solar cell backboard film reduces sometimes.
Further, represent P1 layers relative to ratio, the T1/ (T1+T2+T2 ') shared by film integral thickness be preferably 0.6 with
Upper less than 0.99 scope, represent P2 layers, P2 ' layers relative to ratio the, T2/ (T1+T2+T2 ') shared by film integral thickness,
T2 '/(T1+T2+T2 ') is preferably less than more than 0.01 0.2.It is excellent closely sealed so as to have concurrently by meeting above range
Property and output improve.
In the solar cell backboard film of the present invention, in addition to above-mentioned empty nucleator, inorganic particulate, do not damaging
Evil the present invention effect in the range of, can coordinate as needed heat-resisting stabilizing agent, resistance to oxidation stabilizer, ultra-violet absorber,
The easy lubrication prescription of ultra-violet stabilizer, organic system/inorganic system, the organic system/particulate of inorganic system, filler, nucleator, dyestuff, idol
Join the additives such as agent.For example, in the case where selection ultra-violet absorber is as additive, the present invention can be more improved too
The ultra-violet resistance of positive energy battery back-sheet film.Antistatic additive etc. can additionally be added to improve electrical insulating property.
The solar cell backboard of the present invention is preferably less than more than 25 μm 350 μm with the overall thickness of film, more preferably
Less than more than 30 μm 300 μm, more preferably less than more than 50 μm 260 μm.In the solar cell backboard film of the present invention
Thickness be less than 25 μm in the case of, sometimes with other component films be bonded processing when produce fold.On the other hand, it is if thick
Degree is thicker than 350 μm, then windability deterioration sometimes.In addition, if the overall thickness of film is set into more than 45 μm, then significantly obtain by
The raising effect for the adaptation that the deviation of the cyst areas of above-mentioned thickness direction is brought, the reflectivity of light is good in addition, therefore obtains
Raising effect must be exported, therefore preferably.More preferably 48 μm, more preferably more than 50 μm.
Further, solar cell backboard of the invention is preferably below 0.9W/mK with the thermal conductivity of film, more preferably
Below 0.75W/mK.By the present invention solar cell backboard be set to solar cell backboard with film when, sometimes with it is close
Seal the other films of opposing face (hereinafter referred to as air side) lamination in the closely sealed face of material, but by make thermal conductivity for 0.9W/mK with
Under, so as to the heating of blocking unit, suppress and be stacked on air side film adaptation reduction.Raising can be passed through
Solar cell backboard reduces the thermal conductivity of solar cell backboard film with the voidage of film.
(manufacture method of solar cell backboard film)
Next, the manufacture method of the solar cell backboard film for the present invention, enumerates example to illustrate.This
It it is one, the present invention is not only limited to be explained by what these examples obtained.
First, turn into the present invention solar cell backboard film raw material polyester resin can by make dicarboxylic acids or
Its ester derivant carries out ester exchange reaction or esterification to obtain with glycol using known method.As known anti-
Catalyst is answered, alkali metal compound, alkaline earth metal compound, zinc compound, lead compound, manganese compound, cobalt chemical combination can be enumerated
Thing, aluminium compound, antimonial, titanium compound, phosphorus compound etc..Preferably, appointing before common manufacture method terminates
In the meaning stage, preferably addition alkali metal compound, manganese compound, antimonial or germanium compound, titanium compound are as polymerization catalyzed
Agent, from the viewpoint of the adaptation for more improving solar cell backboard film, more preferably add sodium compound, manganese is closed
Thing.As such method, if for example, exemplified by taking manganese compound, manganese compound powder is preferably directly added.
In addition, temperature when the terminal carboxyl group amount of polyester resin can pass through polymerization, polyester resin is polymerize after
190 DEG C~be less than the fusing point of polyester resin at a temperature of added under the circulation of non-active gas as decompression or nitrogen
The time of the so-called solid phase of heat controls.Specifically, if temperature when polymerizeing improves, the increase of terminal carboxyl group amount,
If extending the time of solid phase, terminal carboxyl group quantitative change is low.
The method for making the solar cell backboard film of the present invention contain empty nucleator, inorganic particulate etc. is preferably following
Method：The mother that raw material will be subjected to melting mixing and made using exhaust twin shaft mixing extruder, tandem type extruder in advance
The method that grain is blended.Now, because master batch is through thermal history, therefore the worry for thering are many heat deteriorations to carry out.Therefore, it is more excellent
Elect as and the master batch containing empty nucleator, inorganic particulate is made with higher concentration, by their mixed dilutings come the method that uses.Tool
For body, when the solar cell backboard of the present invention in film with empty nucleator is added, pre-production in polyester film with that will contain
Some cavity nucleation agent contents are mixed the polyester resin of they and the principal component as polyester film compared to the master batch more than content
Close to be adjusted to the content of target.
Next, the film-forming method of the solar cell backboard film of the present invention can use following methods：It will be adjusted
The whole raw material formed with as polyester film heats melting in extruder, from die extrusion to the curtain coating drum cooled, adds
The method (melting the tape casting) of work slabbing.
Here, solar cell backboard of the invention preferably makes casting drum temperature be carried out for less than more than 30 80 DEG C with film
Cooling, more preferably more preferably less than more than 40 DEG C 70 DEG C, less than more than 45 DEG C 60 DEG C.Making, the temperature that curtain coating is roused is small
In the case of 30 DEG C, the cooling velocity of the film of melting extrusion is too fast, and (Sc/Scs) or (Sc/Scs ') of polyester film diminishes, and has
When deviate preferable scope.On the other hand, if the temperature of curtain coating drum is more than 80 DEG C, the crystallization of polyester resin excessively enters
OK, ruptured sometimes in stretching.
Then, the piece of gained is directed into the roller group for the temperature for being heated to be 70~140 DEG C, along its length (longitudinal direction, i.e. piece
Direct of travel) stretched, utilize 20~50 DEG C of temperature roller group cooling.Then, by the both ends of piece while with fixture handle
Hold while being directed into stenter, in 80~150 DEG C of the atmosphere of temperature is heated to, along the direction at a right angle with length direction
(width) is stretched.Now, stretching ratio is preferably calculated as less than more than 2 times 30 times of multiplying power with face multiplying power, more preferably
For less than more than 4 times 25 times, more preferably less than more than 6 times 20 times.By being stretched with above-mentioned multiplying power, so as to the present invention's
Polyester film can form the cavity of the size with appropriateness.In the case where face multiplying power is less than 2 times, cavity diminishes, and exports sometimes
Raising property reduces.On the other hand, if face multiplying power is more than 30 times, cavity becomes too much, and adaptation reduces sometimes.In addition from right
The load of film machinery is not also preferred from the viewpoint of becoming too much.
Further, the difference of the stretching ratio of the width of length direction (moving direction when film is film-made) and film is preferably
Less than 4 times, more preferably less than 2 times, more preferably less than 1 times.If the difference of above-mentioned stretching ratio is gathered more than 4 times
Empty shape inside ester film is inclined to 1 direction, and adaptation reduces sometimes.
That is, solar cell backboard film of the invention is by making polyester film in length direction (mobile side when film is film-made
To) and film width stretching ratio difference be less than 4 times, less than more than 2 times 30 times of multiplying power is calculated as with face multiplying power and is entered
Row stretching, so as to be made have excellent adaptation concurrently, output improves property, humidity resistance, processability also excellent solar energy
Battery back-sheet film.
Then, heat setting is carried out in stenter after the stretch.Design temperature now is preferably more than 150 DEG C 250 DEG C
Hereinafter, more preferably less than more than 170 DEG C 230 DEG C, more preferably less than more than 180 DEG C 220 DEG C.Enter less than 150 DEG C
In the case of row heat setting, the thermal dimensional stability of solar cell backboard film reduces, and backboard may crimp when processing
The problems such as.On the other hand, in the case of carrying out heat setting at a temperature of more than 250 DEG C, the empty nucleator flowing inside film,
Desired reflecting properties may be cannot get.
In addition, in the case where the solar cell backboard film of the present invention has P2 layers, preferably using following methods：Example
Such as the raw material of the raw material for forming P1 layers and composition P2 layers is put into after different two extruderses are melted respectively makes its interflow,
It is coextruded to from mouth mold on the curtain coating drum cooled, processes the method (coetrusion) of slabbing；By the polyester film with P1 layers
Individually after film, the raw material for the composition P2 layers being dissolved in solvent is coated with using roller rubbing method, Dipcoat method, bar type
After method, mould rubbing method and gravure roll rubbing method etc. are coated, make solvent seasoning, so as to form (the coating of the method for P2 layers
Method).
The solar cell backboard film obtained by above-mentioned manufacture method can maintain conventional solar battery back
Possessed by plate film while humidity resistance, heat resistance, ultra-violet resistance, thermal dimensional stability, processability, have concurrently excellent
Adaptation and output raising property.
(solar cell backboard)
Next, the solar cell backboard of the present invention is illustrated.The present invention solar cell backboard be with
The solar cell backboard of the present invention is with film and the solar cell backboard of at least 1 layer function above layer is important.Wherein, lead to
Later the crimp height for stating the solar cell backboard that assay method is obtained is preferably below 10mm, more preferably below 5mm.It is logical
Crossing makes the crimp height of solar cell backboard be below 10mm, so as to the hair of position skew, unit rupture as caused by curling
Raw rate is reduced, it is possible to increase the productivity of solar cell.
In addition, in order that the crimp height of solar cell backboard is below 10mm, preferably make above-mentioned solar battery back
Plate is below 4.0GPa with the Young's modulus of film, and the Young's modulus for making solar cell backboard is below 4.0GPa.It is highly preferred that
More preferably solar cell backboard is below 4.0GPa with the Young's modulus of film, and the Young's modulus of solar cell backboard is
It is 3.0GPa following.On solar cell backboard film and the lower limit of the Young's modulus of solar cell backboard, as long as not
The function of the present invention is damaged, is just not particularly limited, is exactly sufficiently as long as being more than 0.5GPa.
By making the Young's modulus of solar cell backboard be below 4.0GPa, so that when being stacked on solar cell,
Caused winding pleat utilizes solar cell backboard in the case of can preserving solar cell backboard with reeling condition
Conduct oneself with dignity to flatten.
It is not particularly limited in addition, making solar cell backboard be in the method for above range with the Young's modulus of film, can
To be adjusted using following methods etc..If for example, improving the voidage in solar cell backboard polyester film, or reduce system
Stretching ratio during film, the then Young's modulus for having the tendency of solar cell backboard film reduce.If in addition, reduce solar energy
Voidage in battery back-sheet polyester film, or improve stretching ratio when being film-made, then the poplar for having solar cell backboard film
The tendency that family name's modulus improves.If the in addition, Young's modulus of solar cell backboard film used in solar cell backboard
Height, the then tendency that the Young's modulus of solar cell backboard is improved, if solar-electricity used in solar cell backboard
The Young's modulus of pond backboard film is low, then the Young's modulus of solar cell backboard has the tendency of reduction.In addition to these, may be used
To be adjusted by being stacked on solar cell backboard with the Young's modulus of the layer of film.
The functional layer of the solar cell backboard of the present invention is if include polyethylene, polypropylene, ethane-acetic acid ethyenyl ester
At least one of copolymer or the layer of a variety of combinations, then adaptation become good, therefore preferably.Particularly in the present invention
Solar cell backboard in, by having above-mentioned functional layer between solar cell backboard film and sealing material, so as to
Enough good closing forces with sealing material.Wherein, from the viewpoint of against weather, water-vapor barrier, particularly preferably
Use polyethylene.At least one of polyethylene, polypropylene, vinyl-vinyl acetate copolymer or a variety of groups will included
In the case that the layer of conjunction is set to functional layer, the thickness of functional layer is preferably less than more than 30 μm 300 μm, more preferably more than 50 μm
Less than 200 μm.By the way that the thickness of this layer is set into more than 30 μm, so as to which water-vapor barrier, insulating properties improve, by being set to
Less than 300 μm, polluted so as to the process as caused by functional layer B spilling when suppressing solar cell manufacture.
By comprising at least one of polyethylene, polypropylene, vinyl-vinyl acetate copolymer or a variety of combinations
The method that layer carries out lamination as functional layer come the solar cell backboard with the present invention with film is not particularly limited, and can be enumerated straight
Connect be stacked on the solar cell backboard of the present invention with the method for film, in the range of the effect of the present invention is not damaged by the present invention
Solar cell backboard with film and functional layer via bonding agent etc. come the method for lamination.
In addition, the functional layer of the backboard of the present invention is if include polyvinyl fluoride (PVF), poly- vinylidene fluoride
(PVDF), at least one of ethylene-tetrafluoroethylene copolymer (ETFE), tetrafluoroethene-hexafluoro polypropylene copolymer (FEP),
Or the layer of a variety of combinations, then it can make the against weather of backboard become good, therefore preferably.Particularly, if above-mentioned function
Layer laminate in the present invention solar cell backboard film air side, then can suppress the deterioration brought by ultraviolet, because
This is preferred.From the viewpoint of against weather, above-mentioned functional layer preferably comprises at least one of PVF, PVDF.
In the feelings using the layer comprising at least one of PVF, PVDF, ETFE, FEP or a variety of combinations as functional layer
Under condition, the thickness of functional layer is preferably less than more than 25 μm 125 μm, more preferably less than more than 25 μm 75 μm.By making the layer
Thickness be more than 25 μm, so as to against weather improve, by being set to less than 125 μm, thus solar cell backboard processing
Property improve.
Layer comprising at least one of PVF, PVDF, PTFE, ETFE or a variety of combinations is carried out into lamination as functional layer
It is not particularly limited in the solar cell backboard of the present invention with the method for film, the solar energy for being directly stacked on the present invention can be enumerated
Battery back-sheet with the method for film, in the range of the effect of the present invention is not damaged by the solar cell backboard film of the present invention and
The method that functional layer carrys out lamination via bonding agent etc..
If the functional layer of the solar cell backboard of the present invention is the layer comprising polyurethane, adaptation becomes good,
Therefore preferably.Particularly if above-mentioned functional layer positioned at the present invention solar cell backboard film and sealing material between, then with
The closing force of sealing material improves.Here so-called polyurethane, it is by the compound with NCO and the chemical combination with hydroxyl
The general name for the polymer that thing obtains.As the compound with NCO, have the third diisocyanate (TDI), 1,6- oneself two
Isocyanates (HDI), di-2-ethylhexylphosphine oxide (4,1- phenylenes)=diisocyanate (MDI), 3- isocyanatomethyl -3,5,5- front threes
The diisocyanate such as butylcyclohexyl isocyanates (IPDI), XDI (XDI), these diisocyanate
Trimethylolpropane adduction body, the isocyanuric acid ester body of tripolymer as these diisocyanate, these diisocyanate
Biuret combination, polymeric diisocyanate etc., wherein, from the viewpoint of tone, preferably HDI.As with hydroxyl
Compound, there are PEPA, PPG, polyacrylic polyols, fluorine system polyalcohol etc., from humidity resistance, weatherability
From the viewpoint of property, preferably polyacrylic polyols, fluorine system polyalcohol.
In the case of using the layer comprising polyurethane as functional layer, the thickness of functional layer be preferably more than 1 μm 20 μm with
Under, more preferably less than more than 2 μm 10 μm.In the case of using the layer comprising polyurethane as functional layer, by making functional layer
Thickness be more than 1 μm, so as to against weather improve, by being set to less than 20 μm, so as to backboard processability raising.
Come the layer comprising polyurethane as functional layer with the method for the solar cell backboard film lamination of the present invention not
It is particularly limited, can enumerates using rolling method, intaglio plate rolling method, kiss coating and other cladding processes or print process etc. come lamination
Method.
In addition, the functional layer of the solar cell backboard of the present invention preferably comprises inorganic compound.Pass through solar cell
The functional layer of backboard includes inorganic compound, is improved so as to the water-vapor barrier of solar cell backboard.As functional layer institute
Comprising inorganic compound, preferably silica, aluminum oxide are especially excellent from water-vapor barrier, humidity resistance aspect
Elect silica as.
As using the layer comprising inorganic compound as functional layer come with the present invention solar cell backboard film lamination
Method, be not particularly limited, can enumerate：Directly it is stacked on the method for the solar cell backboard film of the present invention；With this
The different polyester film superimposed layer inorganic compound of the solar cell backboard film of invention, in the model for the effect for not damaging the present invention
In enclosing, there is the layer (functional layer) beyond the polyester film of inorganic compound to pass through with lamination the solar cell backboard film of the present invention
The method that lamination is carried out by bonding agent etc..
In addition, the solar cell backboard on the present invention, if by the functional layer comprising polyester via adhesive linkage and this
The solar cell backboard film lamination of invention, is made solar cell backboard, then against weather, excellent in workability, therefore excellent
Choosing.
In the case of using the layer comprising polyester as functional layer, the thickness of functional layer be preferably more than 25 μm 188 μm with
Under, more preferably less than more than 38 μm 125 μm.By making the thickness thickness of above-mentioned layer up to more than 25 μm, so as to improve gasproof
Hou Xing, by making it be as thin as less than 188 μm, so as to improve the processability of backboard.
In addition, in the present invention, the present invention solar cell backboard film via adhesive linkage the active ergosphere of lamination
In the case of, voidage, (Sc/Scs), (Sc/Scs ') do not include adhesive linkage, functional layer and obtain.For example, with bag
In the case of the stack membrane of the structure of functional layer/adhesive linkage containing polyester/polyester film containing cavity, by the polyester containing cavity
The central point of the thickness direction of film is set to C1 points, and C1 points and the intermediate point on the film surface of the polyester film containing cavity are set into (C2-
1 point), (C2-2 points).
(solar cell)
Next, the solar cell of the present invention is illustrated.The present invention solar cell directly carry it is above-mentioned too
Positive energy battery back-sheet film.Or above-mentioned solar cell backboard will be carried as feature.
The configuration example of the solar cell of the present invention is shown in Figure 1.The lead that extraction electricity will be connected to (does not show in Fig. 1
Go out) the material that is sealed with the transparent sealing material 2 such as EVA resin of generating element on, make the transparency carriers such as glass 4 with too
Positive energy battery back-sheet 1 is bonded to form, but is not limited to this, can be used for arbitrarily forming.
Here, in the solar cell of the present invention, solar cell backboard 1 undertakes protection and seals the close of generating element
Seal the effect of the generator unit set by the back side of material 2.Here from improve solar cell generating efficiency aspect, preferably
Solar cell backboard configures in a manner of P2 layers connect with sealing material 2.By the way that for this composition, this is had concurrently so as to be made
The excellent adaptation of solar cell backboard film and the solar cell of generating efficiency of invention.
The luminous energy of sunshine is converted into electric energy by generating element 3, can by crystalline silicon, polycrystalline silicon systems, microcrystalline silicon,
Amorphous silicon systems, CIS (copperindiumdiselenide) system, group compound semiconductor system, dye sensitization system etc. are according to mesh
Any element connected in series or parallel used according to desired voltage or electric current are multiple.Transparent base with translucency
Plate 4 is located at the most top layer of solar cell, therefore use is in addition to high-transmission rate, also resistance to high weather resistance, height
The transparent material of contaminative, high mechanical properties characteristic.In the solar cell of the present invention, there is the transparency carrier 4 of translucency
As long as meet above-mentioned characteristic, it is possible to use any material, as its example, it is common can preferably to enumerate glass, tetrafluoroethylene-Ethylene
Polymers (ETFE), polyfluoroethylene resin (PVF), poly- 1,1- fluoride resins (PVDF), polyflon (TFE), four
The fluorine system trees such as viton copolymers (FEP), daiflon (CTFE), poly- 1,1- fluoride resins
Fat, olefin-based resin, acrylic resin and their mixture etc..In the case of glass, more preferably using enhancing
Glass.In addition in the case of using the transmitting substrate of resin-made, from the viewpoint of mechanical strength, further preferably use will be above-mentioned
The material that resin uniaxially or biaxially has stretched.In addition, in order to be assigned and the encapsulant as generating element to these base materials
EVA resin etc. cementability, further preferably implement sided corona treatment, corona treatment, ozone processing, the processing of easy bonding to surface
Come carry out.
For seal the sealing material 2 of generating element in order to by the bumps on the surface of generating element with resin-coated and fixed,
Protect generating element not by external environment influence, beyond the purpose of electric insulation, in order to be adhered to the base material with translucency, backboard
With generating element, can use with high transparency, high weather resistance, high adhesiveness, the material of high-fire resistance.As its example
Son, preferably using vinyl-vinyl acetate copolymer (EVA), ethylene-methyl acrylate copolymer (EMA), ethylene-acrylic acid
Methacrylate copolymers (EEA) resin, ethylene-methacrylic acid copolymer (EMAA), ionic cross-linked polymer resin, polyvinyl alcohol contracting
Butyral resin and their mixture etc..
As described above, by the way that the solar cell backboard of the present invention is equipped on too by the use of film as solar cell backboard
It is positive can battery, so as to compared with conventional solar cell, even in it is long-term be positioned over outdoor in the case of, also keep and the sun
The adaptation of energy battery back-sheet, it is further able to improve generating efficiency.The solar cell of the present invention is not limited to sunshine hair
Electric system, outdoor application, the indoor purposes such as power supply of small-sized electronic part, can be suitable for various uses.
(assay method and evaluation method of characteristic)
(1) polymer property
(1-1) terminal carboxyl group amount (is COOH amounts described in table.)
On terminal carboxyl group amount, according to Maulice method, it is determined using following methods.(document：
M.J.Maulice, F.Huizinga, Anal.Chim.Acta, 22 363 (1960))
In temperature, 80 DEG C are dissolved in measure sample 2g in orthoresol/chloroform (mass ratio 7/3) 50mL, utilize 0.05N's
KOH/ methanol solutions are titrated, and determine end carboxy concentration, are represented with equivalent/polyester 1t value.In addition, finger during titration
It is phenol red to show that agent uses, the terminal of titration will be set at the time of being changed into light red from yellow green.In addition, dissolved with measure sample
In the case of there is the insoluble matters such as inorganic particulate in solution, implement following corrections：Solution is filtered to carry out insoluble matter
Quality determination, the quality of insoluble matter is subtracted from measure sample mass, using the value of gained as measure sample mass.
(1-2) inherent viscosity IV
In o-chlorphenol 100ml, dissolving measure sample (solution concentration C (measure sample mass/liquor capacity)=
1.2g/ml), viscosity of the solution at 25 DEG C is determined using Ostwald viscometer.In addition, similarly determine solvent
Viscosity.Using the solution viscosity of acquisition, solvent viscosity, by following formula (4), [η] is calculated, inherent viscosity is used as using the value of acquisition
(IV)。
η sp/C=[η]+K [η]2·C···(4)
(here, η sp=(solution viscosity/solvent viscosity) -1, K is Huggins constant (for 0.343).)
In addition, in the case of there is the insoluble matters such as inorganic particulate in the solution dissolved with measure sample, use with lower section
Method is measured.
(i) the dissolving measure sample in o-chlorphenol 100mL, is made the solution that solution concentration is higher than 1.2g/mL.Here,
Quality for the measure sample of o-chlorphenol is set to determine sample mass.
(ii) next, the solution comprising insoluble matter is filtered, after the quality determination and filtering that carry out insoluble matter
The stereometry of filtrate.
(iii) additional o-chlorphenol in filtrate after filtration, is adjusted so that (measure sample mass (g)-insoluble matter
Quality (g))/(volume (mL) of the o-chlorphenol of the volume (mL) of the filtrate after filtering+addition) be 1.2g/100mL.
(for example, when measure sample mass 2.0g/ liquor capacities 100mL concentrated solution is made, when filtering the solution not
The quality of molten thing is 0.2g, in the case that the volume of the filtrate after filtering is 99mL, implements additional o-chlorphenol 51mL adjustment.
((2.0g-0.2g)/(99mL+51mL)=1.2g/mL))
(iv) using the solution obtained by (iii), the viscosity at 25 DEG C is determined using Ostwald viscometer, is made
With the solution viscosity of acquisition, solvent viscosity, by above-mentioned formula (C), [η] is calculated, inherent viscosity (IV) is used as using the value of acquisition.
(1-3) metal element content
On Mg, Mn, Sb metallic element amount, fluorescent x-ary analysis (motor (strain) of science fluorescent X-ray processed point is utilized
Analysis apparatus (model：3270)) quantified, on Na metallic elements, utilize atomic absorption analysis (Hitachi's system：Partially
Light Zeeman atomic absorption photometer 180-80.Flame：Acetylene-air) quantified.
(2) cyst areas ratio
The observation in (2-1) film section
Processed using slicer, CP (Cross section polishing instrument) section, make the solar cell backboard film of the present invention in thickness
Vertically cut off relative to film surface direction under conditions of not collapsed on degree direction, Formation cross-section.Then, using sweep type electricity
Sub- microscope (SEM) (JEOL (strain) field-emission scanning type electron microscope " JSM-6700F "), obtain observation sample
Image obtained by section.
The measure of the overall voidage of (2-2) film
On the method by (2-1), arbitrarily selected in membrane sample at different place total 5, in the length side of film
Cut off to width at total the 10 of film section, the thickness direction for the maximum multiplying power observation film for preparing to observe is whole
Image obtained by body.Then, describe on the transparent film of each only hollow sectors, calculate using image dissector (ニ レ U strains
Formula commercial firm system：ル ー ゼ ッ Network ス IID) measure cyst areas and the ratio between overall film sectional area in observation image, at 10
Average value be set to the overall voidage of film.
Voidage (Ps), the measure of (Ps ') on (2-3) film top layer
On more than 3 layers stack membranes, the voidage on film top layer (Ps), (Ps ') are determined by the following method.I.e. on
Observation section at total 10 made in the same manner as (2-2), the maximum multiplying power observation film table for preparing to observe in visual field
The image that the top layer of layer (P2 layers and P2 ' layers) integrally obtains, similarly calculates area ratio, at 10 using image dissector
Average value is set to the voidage on film top layer.
The measure of empty cyst areas present on (2-4) each horizontal line
On the observation section at total 10 with being made in the same manner as (2-2), the maximum multiplying power for preparing to observe is seen
Examine the image that the thickness direction of film integrally obtains.Then, on each observation image, draw vertical with the thickness direction of film
Line, by the line with following 3 points (film thickness direction central point (C1 points), film thickness direction central point and film surface intermediate points
(C2-1 points), (C2-2 points)) 4 deciles are carried out, draw the line parallel with the thickness direction of film (segmentation water by above-mentioned 3 points respectively
Horizontal line).Then, only described present on segmentation horizontal line on the transparent film of hollow sectors, asked using image dissector
Go out average area empty present on each horizontal line.
In addition, the empty number on description, cavity present on the segmentation horizontal line in observation image is less than 20
In the case of individual, describe for the cavity of whole, in the case of the cavity of more than 20 being present, select the center of gravity in cavity to connect
Nearly C1 points, C2-1 points, 20, the cavity of C2-2 points are described.
(2-5) average hole area ratio (Sc/Scs), (Sc/Scs ') are calculated
It is empty by every 1 present on the segmentation horizontal line by C1 points on the average area obtained by (2-4)
Average area be set to Sc (μm2), it will be set to by every 1 empty average area present on the segmentation horizontal line of C2-1 points
Scs(μm2), will by C2-2 points segmentation horizontal line present on every 1 empty average area be set to Scs ' (μm2), calculate
Cyst areas ratio (Sc/Scs) or (Sc/Scs '), the average value at total 10 is set to average hole area ratio of the invention
(Sc/Scs)、(Sc/Scs’)。
(3) adaptation is evaluated
(3-1) is bonded the making of sample
Make 125 μm of biaxially stretched polyesters of thickness on solar cell backboard film, solar cell backboard in the present invention
" Le ミ ラ ー " (registration mark) X10S (eastern レ (strain) system) is using bonding agent (by " タ ケ ラ ッ Network " (registration mark) A310 for film
(three well force field ケ ミ カ Le (strain) system) 90 mass parts, " タ ケ ネ ー ト " (registration mark) A3 (three well force field ケ ミ カ Le (strain)
System) 10 mass parts mix) after fitting, be adjusted to carry out 48hr agings in 40 DEG C of thermostat in temperature.
(3-2) adaptation is evaluated
On the sample obtained by (3-1), height accelerated life test device pressure cooker (エ ス ペ ッ Network is utilized
(strain) makes), carry out handling for 48 hours under conditions of 120 DEG C of temperature, relative humidity 100%, then by the solar energy of the present invention
Battery back-sheet is flatly fixed with film side, and the part being bonded is implemented with 180 ° of strippings of speed of 200mm/ minutes, measure
Peel strength during disbonded test, solar cell backboard is carried out as follows judgement with the adaptation of film.
Peel strength is more than 6N/15mm situation：A
Peel strength is situations of the 4N/15mm less than 6N/15mm：B
Peel strength is situations of the 2N/15mm less than 4N/15mm：C
Peel strength is situations of the 1N/15mm less than 2N/15mm：D
Peel strength is less than 1N/15mm situation：E
On adaptation, A~D is good, wherein, A is most excellent.
(4) humidity resistance is evaluated
By the present invention solar cell backboard with film, solar cell backboard cut out into measure piece shape 10mm ×
After 200mm, using height accelerated life test device pressure cooker (エ ス ペ ッ Network (strain) system), in 125 DEG C of temperature, phase
Handle carrying out 48 hours under conditions of humidity 100%RH, then, elongation at break is determined based on ASTM-D882 (1997).Separately
Outside, measure is set to 50mm between chuck, draw speed 300mm/min, frequency n=5 is determined, in addition, length direction, width for piece
After degree direction determines respectively, the elongation at break that value is set to after damp heat test is averaged.By after the damp heat test that obtains
Elongation at break, humidity resistance is judged as follows.
Elongation at break after damp heat test is more than 60% situation of the elongation at break before damp heat test：A
Elongation at break after damp heat test is the elongation at break before damp heat test 40% less than 60%
Situation：B
Elongation at break after damp heat test is the elongation at break before damp heat test 20% less than 40%
Situation：C
Elongation at break after damp heat test is the elongation at break before damp heat test 10% less than 20%
In the case of：D
Elongation at break after damp heat test is less than 10% situation of the elongation at break before damp heat test：E
On humidity resistance, A~D is good, wherein, A is most excellent.
(5) ultra-violet resistance (tone variations when UV treatment is tested)
(5-1) tone (b values) determines
Based on JIS-Z-8722 (2000), using beam splitting type colour difference meter SE-2000, (Japan's electric color industrial (strain) makes, light source
Halogen lamp 12V4A, 0 °~-45 ° light splitting afterwards modes), solar cell backboard film, solar energy are determined with n=3 by bounce technique
The tone (b values) of battery back-sheet, is obtained as its average value.
(5-2) tone variations Δ b
Solar cell backboard film, solar cell backboard to the present invention, according to above-mentioned (5-1) item, are surpassed using eye
Level UV test machine S-W151 (rugged electrically (strain) system of rock), is determined in temperature 60 C, relative humidity 60%, illumination 100mW/
cm2(light source：Metal halide lamp, wave-length coverage：295~450nm, spike length：Before and after being irradiated 48 hours under conditions of 365nm)
Tone (b values), by following (α) formula calculate ultraviolet irradiation after tone variations (Δ b).In addition, in the solar energy of the present invention
In the case that battery back-sheet is with the structure that film is that one side has P2 layers, so that the side of the surface contact UV test light of P2 layers side
Formula is tested.In addition, in the case of solar cell backboard, in embodiment 32~37,45~46,50~53, with
The mode of the opposing face in face of the UV test light contact with functional layer B is tested, in embodiment 38~44,47~49
In, tested in a manner of surface of the UV test light contact with functional layer B, in 54~56, tried with ultraviolet
The mode on surface of the optometry contact with functional layer B ' is tested.
Tone variations (Δ b)=b1-b0 (α) after ultraviolet irradiation
b0：The tone (b values) of ultraviolet pre-irradiation
b1：Tone (b values) after ultraviolet irradiation
By the front and rear tone variations of the UV treatment experiment obtained, (Δ b), judges ultra-violet resistance as follows.
(Δ b) is less than 3 situation to the front and rear tone variations of ultraviolet treatment with irradiation experiment：A
The front and rear tone variations of ultraviolet treatment with irradiation experiment (Δ b) be 3 less than 6 situation：B
The front and rear tone variations of ultraviolet treatment with irradiation experiment (Δ b) be 6 less than 10 situation：C
The front and rear tone variations of ultraviolet treatment with irradiation experiment (Δ b) be 10 less than 20 situation：D
(Δ b) is more than 20 situation to the front and rear tone variations of ultraviolet treatment with irradiation experiment：E
On ultra-violet resistance, A~D is good, wherein, A is most excellent.
(6) thermal conductivity is evaluated
As the thermal conductivity evaluation of the solar cell backboard film of the present invention, tested based on ATSM E1530.
Lower heater is set as 30 DEG C, upper portion heater is set as 80 DEG C, is measured with n=3, value is averaged and is set to heat
Conductance, judgement is carried out as follows by the thermal conductivity obtained.
Thermal conductivity is below 0.08W/mK：A
Thermal conductivity is more than 0.08W/mK and is below 0.12W/mK：B
Thermal conductivity is more than 0.12W/mK and is below 0.14W/mK：C
Thermal conductivity is more than 0.14W/mK：D
On thermal conductivity, A~B is good, wherein, A is most excellent.
(7) characteristic of solar cell is evaluated
The output of (7-1) solar cell raising property evaluation
In polycrystalline silicon type solar battery cell " ジ ンテック society G156M3 " surface and the silver electrode portion at the back side
Point, " HOZAN societies H722 ", in the silver electrode at surface and the back side, 155mm length will be cut into using distributor coating solder flux
With wire rod " Hitachi's electric wire society copper foil SSA-SPS0.2 × 1.5 (20) " using one end of the range cell of face side as 10mm's
Place turns into the end with wire rod and rear side loads with face side as symmetrical mode, using welding gun, makes welding gun from list
First back side side contacts, surface is welded simultaneously with the back side, produce 1 unit string (strings).
Next, so that the above-mentioned length direction with wire rod exposed from the unit of 1 unit string of making is with cutting into
180mm extraction electrode " length direction of Hitachi's electric wire society copper foil A-SPS0.23 × 6.0 " is placed as vertical mode,
Above-mentioned solder flux is coated with to be welded in the above-mentioned part overlapped with wire rod with extraction electrode, is produced with extraction electrode
String.At the moment, according to JISC8914：2005 normal condition implements the measure of short circuit current, the generating as individually unit
Performance.
Next, using as 190mm × 190mm of covering material glass, (Asahi Glass society system 3.2mm used for solar batteries is thick
Blank heat-treated glass), as the 190mm × 190mm ethane-acetic acid ethyenyl ester of table side sealing material, (サ ンビック societies system is close
Envelope material 0.5mm is thick), implement individually unit power generation performance evaluation the string with extraction electrode, as dorsal part sealing material
190mm × 190mm ethane-acetic acid ethyenyl ester (サ ンビック societies sealing material 0.5mm is thick), cut into 190mm × 190mm
Solar cell backboard of the invention it is overlapping and fixed successively with film so that what the glass contacted with the hot plate of vacuum laminator
Mode is set, and in 145 DEG C of hot plate temperature, is vacuumized 4 minutes, and compacting is carried out very for 1 minute with conditions of 10 minutes retention times
Dead level pressure, produce the solar cell of evaluation.Now, the string with extraction electrode is so that glass surface turns into cell list surface side
Mode set.In addition, in the case where the solar cell backboard of the present invention is structure of the one side with P2 layers with film, so that
P2 layers side is set to the mode of generator unit side.
For the solar module of acquisition, implement according to JIS C8914：The short circuit electricity of 2005 normal condition measure
The measure of stream, it is set to be equipped with the power generation performance of the solar cell of the solar cell backboard of the present invention.
By the individually unit being achieved in that power generation performance and be equipped with the present invention solar cell backboard solar energy
The power generation performance of battery, according to following (β) formula, calculate the hair for the solar cell for being equipped with the solar cell backboard of the present invention
Electric increase rate.
The generating increase rate (%) brought by modularization=(power generation performance of power generation performance/individually unit after modularization-
1) × 100 (%) (β)
It is following to judge output raising property by the generating increase rate obtained.
Generating increase rate is more than 8.0% situation：A
Generating increase rate be 7.5% less than 8.0% situation：B
Generating increase rate be 7.0% less than 7.5% situation：C
Generating increase rate be 6.5% less than 7.0% situation：D
Generating increase rate is less than 6.5% situation：E
On the output raising property of solar cell, A~D is good, wherein, A is most excellent.
The adaptation evaluation of (7-2) solar cell
Prepare 10 solar cells made by (7-1) item, be adjusted to 85 DEG C of 85%RH constant temperature and humidity cabinet (エ ス
ペ ッ Network (strain) make) in processing 4000hr after, visually confirm lamination after solar cell backboard film whether shelled
From.On the adaptation of solar cell, in 10 solar cells, visually confirm that piece peeled off how many,
It is carried out as follows judgement.
The not peeling-off situation in whole solar cells：A
In the solar cell of making, piece is from 1 situation about having been peeled off less than the solar cell of 4：B
In the solar cell of making, piece is from 4 situations about having been peeled off less than the solar cell of 8：C
In the solar cell of making, situation that the piece of more than 8 has been peeled off from solar cell：D
Situation about being peeled off in whole solar cells：E
On the adaptation of solar cell, A~D is good, wherein, A is most excellent.
(8) Young's modulus is evaluated
Young's modulus based on ASTM-D882 (1997) measure solar cell backboards film, solar cell backboard.Separately
Outside, measure is set to 50mm, draw speed 300mm/min, measure frequency n=5 between chuck, in addition, length direction, width for piece
After degree direction determines respectively, it is averaged value and is set to Young's modulus.By the Young's modulus obtained, judgement has been carried out as follows.
Young's modulus is below 2.0GPa situation：A
Young's modulus is more than 2.0GPa and is below 3.0GPa situation：B
Young's modulus is more than 3.0GPa and is below 4.0GPa situation：C
Young's modulus exceedes 4.0GPa situation：D
On Young's modulus, A~C is good, wherein, A is most excellent.
(9) crimp height is evaluated
As the evaluation of solar cell backboard, the evaluation of crimp height (crimpiness) has been followed the steps below.
1. on external diameter 84.2mm paper tube, winding cuts into 200mm × 200mm solar cell backboard and fixation,
Preserved 1 week in 40 DEG C of 50%RH, the film of acquisition is removed from paper tube, obtain crimp height evaluation piece.
2. the crimp height evaluation piece of gained on flat plate, is evaluated in the environment of 25 DEG C with crimp height
Place in the direction contacted with the central portion of piece with plate.
3. utilize 4 angles of slide calliper rule measure crimp height evaluation piece and the distance (crimp height) of plate.
4. take by the average value of 3. 4 crimp heights obtained, by the average value of the crimp height obtained, crimp height
Evaluation has been carried out as follows judgement.
The average value of crimp height is less than 5mm：A
The average value of crimp height is 5mm less than 10mm：B
The average value of crimp height is 10mm less than 15mm：C
The average value of crimp height is more than 15mm：D
On crimp height, A~C is good, wherein, A is most excellent.
(10) water-vapor barrier is evaluated
As the evaluation of the water-vapor barrier of solar cell backboard, passed according to JIS K7129 (2008) infrared ray
Sensor method, determine in measure area 50cm2, moisture-vapor transmission under 40 DEG C of 90%RH environment.It is following to judge by the value obtained
Water-vapor barrier.
Moisture-vapor transmission is less than 0.5g/m2/ day：A
Moisture-vapor transmission is 0.5g/m2/ day is less than 1.0g/m2/ day：B
Moisture-vapor transmission is 1.0g/m2/ day is less than 2.0g/m2/ day：C
Moisture-vapor transmission is 2.0g/m2/ day is less than 3.0g/m2/ day：D
Moisture-vapor transmission is 3.0g/m2It is more than/day：E
On water-vapor barrier, A~D is good, wherein, A is most excellent.
Embodiment
Hereinafter, for the present invention, embodiment is enumerated to illustrate, but the present invention is not necessarily limited to this.
(polyester based resin raw material used in P1 layers)
1.PET raw material As (PET-a)
By the mass parts of dimethyl terephthalate (DMT) 100, the mass parts of ethylene glycol 57.5, the mass parts of 4 hydrate of manganese acetate 0.03,
The mass parts of antimony trioxide 0.03 are melted in a nitrogen atmosphere at 150 DEG C.The fused mass is stirred while small through 3
When be warming up to 230 DEG C, distillate methanol, terminate ester exchange reaction.After ester exchange reaction terminates, add the mass of phosphoric acid 0.005
Part and the mass parts of 2 hydrate of sodium dihydrogen phosphate 0.021 are dissolved in the ethylene glycol solution (pH5.0) of the mass parts of ethylene glycol 0.5.Now
Polymer blend inherent viscosity be less than 0.2.Then, eventually arrive at 285 DEG C of temperature, the support of vacuum 0.1 polymerize it is anti-
Should, obtain inherent viscosity 0.52, the polyethylene terephthalate that terminal carboxyl group amount is 15 equivalents/ton.Make the poly- of acquisition
Ethylene glycol terephthalate is dried 6 hours at 160 DEG C, makes its crystallization.Then, in 220 DEG C, the support of vacuum 0.3,8 are carried out
The solid phase of hour, obtain inherent viscosity 0.82, the polyethylene terephthalate that terminal carboxyl group amount is 10 equivalents/ton
(PET-a).The glass transition temperature of the polyethylene terephthalate composition of acquisition is 82 DEG C, and fusing point is 255 DEG C.
2.PET raw materials B (PET-b)
The time of solid phase is set to 10 hours, in addition, is carried out in the same manner as PET raw material As, obtains characteristic and glue
Degree 0.85, the polyethylene terephthalate (PET-b) that terminal carboxyl group amount is 6 equivalents/ton.
3.PET raw materials C (PET-c)
The temperature that eventually arrives at of polymerisation is set to 290 DEG C, in addition, carried out in the same manner as PET raw material As, is obtained
Inherent viscosity 0.79, the polyethylene terephthalate (PET-c) that terminal carboxyl group amount is 15 equivalents/ton.
4.PET raw materials D (PET-d)
The temperature that eventually arrives at of polymerisation is set to 295 DEG C, in addition, carried out in the same manner as PET raw material As, is obtained
Inherent viscosity 0.77, the polyethylene terephthalate (PET-d) that terminal carboxyl group amount is 20 equivalents/ton.
5.PET raw materials E (PET-e)
The temperature that eventually arrives at of polymerisation is set to 300 DEG C, in addition, carried out in the same manner as PET raw material As, is obtained
Inherent viscosity 0.75, the polyethylene terephthalate (PET-e) that terminal carboxyl group amount is 28 equivalents/ton.
6.PET raw materials F (PET-f)
As catalysts, the mass parts of 2 hydrate of magnesium acetate 0.03 are added instead of manganese acetate, ester exchange reaction terminates
Afterwards, the mass parts of phosphoric acid 0.005 are only added, in addition, are carried out in the same manner as PET raw material As, obtain inherent viscosity 0.80, end
End carboxyl amount is the polyethylene terephthalate (PET-f) of 10 equivalents/ton.
7.PET raw materials G (PET-g)
The temperature that eventually arrives at of polymerisation is set to 297 DEG C, in addition, carried out in the same manner as PET raw material As, is obtained
Inherent viscosity 0.76, the polyethylene terephthalate (PET-g) that terminal carboxyl group amount is 24 equivalents/ton.
8.PET raw materials H (PET-h)
The temperature that eventually arrives at of polymerisation is set to 305 DEG C, in addition, carried out in the same manner as PET raw material As, is obtained
Inherent viscosity 0.65, the polyethylene terephthalate (PET-h) that terminal carboxyl group amount is 34 equivalents/ton.
9. empty nucleator master batch A
By by the mass parts of PET resin A (PET-a) 42 of above-mentioned 1. acquisitions, Port リ プ ラ ス チ ッ Network ス Co. Ltd. systems
Cyclic olefine copolymer (COC) " TOPAS " (registration mark) 6018 (Vicat softening point=188 DEG C) 40 mass parts, eastern レ デ ュ Port
Application Co. Ltd. system polyester-based elastomer (TPE) " Ha イ ト レ Le " (registration mark) 7,247 18 mass parts are in 290 be vented
DEG C extruder in carry out melting mixing, produce empty nucleator master batch A.
10. empty nucleator mother particle B
Instead of PET resin A using the PET resin B by above-mentioned 2. acquisitions, in addition, the cavity with 7. is utilized
Composition and method same nucleator master batch A produces empty nucleator mother particle B.
11. empty nucleator master batch C
Instead of PET resin A using the PET resin C by above-mentioned 3. acquisitions, in addition, the cavity with 7. is utilized
Composition and method same nucleator master batch A produces empty nucleator master batch C.
12. empty nucleator master batch D
Instead of PET resin A using the PET resin D by above-mentioned 4. acquisitions, in addition, the cavity with 7. is utilized
Composition and method same nucleator master batch A produces empty nucleator master batch D.
13. empty nucleator master batch F
Instead of PET resin A using the PET resin F by above-mentioned 5. acquisitions, in addition, the cavity with 7. is utilized
Composition and method same nucleator master batch A produces empty nucleator master batch F.
14. empty nucleator master batch G
By by the mass parts of PET resin A (PET-a) 26.3 of above-mentioned 1. acquisitions, Port リ プ ラ ス チ ッ Network ス Co., Ltd.
(Vicat softening point=188 DEG C) 40 mass parts of cyclic olefine copolymer " TOPAS " (registration mark) 6018 processed, eastern レ デ ュ Port Application strains
The mass parts, イ ー ス ト マ Application ケ ミ カ of formula commercial firm polyester-based elastomer (TPE) " Ha イ ト レ Le " (registration mark) 7,247 18
The mass parts of Le society amorphism PET resin (PET-G) Copolyester GN071 15.3 are in 290 DEG C of extruder being vented
Interior carry out melting mixing, produce empty nucleator master batch G.
15. empty nucleator master batch H
By by the mass parts of PET resin A (PET-a) 60 of above-mentioned 1. acquisitions, Port リ プ ラ ス チ ッ Network ス Co. Ltd. systems
(Vicat softening point=188 DEG C) 40 mass parts of cyclic olefine copolymer " TOPAS " (registration mark) 6018 are in 290 DEG C be vented
Melting mixing is carried out in extruder, produces empty nucleator master batch H.
16. empty nucleator master batch I
By by the mass parts of PET resin A (PET-a) 42 of above-mentioned 1. acquisitions, the poly- methylpent of Mitsui Chemicals, Inc's system
Alkene (PMP) " TPX " (registration mark) DX820 (Vicat softening point=172 DEG C) 40 mass parts, eastern レ デ ュ Port Application Co. Ltd. systems
Polyester-based elastomer (TPE) " Ha イ ト レ Le " (registration mark) 7,247 18 mass parts are in 290 DEG C be vented of extruder
Melting mixing is carried out, produces empty nucleator master batch I.
17. empty nucleator master batch J
By by the mass parts of PET resin A (PET-a) 56 of above-mentioned 1. acquisitions, Sumitomo Chemical Co's polypropylene
(PP) " ノ ー Block レ Application " 40 mass parts of (registration mark) FLX80E4 (Vicat softening point=135 DEG C), Sanyo's chemical conversion industry strain formula
(sour mass parts of MODIFIED PP) " ユ ー メ ッ Network ス " (registration mark) PP1010 4 are being vented commercial firm's relieving haperacidity modified polypropene
Melting mixing is carried out in 290 DEG C of extruder, produces empty nucleator master batch J.
18. titanium oxide master batch
By by the rutile-type oxygen of the mass parts of PET resin A (PET-a) 100 of above-mentioned 1. acquisitions, average grain diameter 210nm
Change titanium particle (TiO2) 100 mass parts carry out melting mixing in 290 DEG C be vented of extruder, produce titanium oxide mother
Grain.
19. barium sulfate master batch
By by the barium sulfate particles of the mass parts of PET resin A (PET-a) 100 of above-mentioned 1. acquisitions, 1.5 μm of average grain diameter
(BaSO4) 100 mass parts carry out melting mixing in 290 DEG C be vented of extruder, produce barium sulfate master batch.
(film, smears used in functional layer B)
20. polyethylene film
Eastern レ Off ィ Le system processing (strain) white polyethylene film " 4807W " processed is used.
21. polyethylene vinyl acetate co-polymer membrane
Using polyethylene vinyl acetate (the mass % of the vinyl acetate content 5) mass parts of pellet 50, make as inorganic grain
The dispersed polyethylene master batches of the mass % of titanium dioxide 30 of 0.25 μm of the equal aggregate particle size of number of son (contain relative to master batch total amount
The mass % of titanium dioxide 30) 50 mass parts supply into the extruder for the temperature for being heated to 190 DEG C, have used and extruded by T-shaped mould
Polyethylene vinyl acetate film.
22. polypropylene screen
Eastern レ Off ィ Le system processing (strain) white polypropylene film processed " B011W " is used.
23.PVF films
デ ュ ポン societies system " テ De ラ ー " (registration mark) are used.
24.PVDF films
ア Le ケ マ societies system " カ イ ナ ー " (registration mark) are used.
25.ETFE films
ダ イ キ Application industrial (strain) system " ネ オ Off ロ Application " (registration mark) EF series is used.
26. paint (paint a, paint b) are used in carbamate coating
As paint a blending, by the cooperation shown in the column of host one of table 9, in the conduct third of (strain) Japanese catalyst
" Ha Le ス Ha イ Block リ ッ ト " (registration mark) polymer UV-G301 (solid component concentrations of olefin(e) acid system smears：40 mass %)
In, テ イ カ (strain) the oxygenerating titanium particle JR-709 and solvent of coloring pigment are mixed in the lump, make these mixing using ball mill
Thing disperses.Then, DIC (strain) polyester plasticizer processed " Port リ サ イ ザ ー " (registration mark) W- of addition as plasticizer
220EL, obtain the paint a for the resin bed formation that solid component concentration is 51 mass % host.
In the host for operating as explained above and obtaining, using shown in table 10 as urea groups (nurate) type 1,6- oneself two
Isocyanate resin lives to change バ イ エ Le ウ レ タ Application (strain) system " デ ス モ ジ ュ ー Le " (registration mark) N3300 (solids
Constituent concentration：100 mass %) counted in advance in a manner of turning into 100/4 ratio with the mass ratio of host with above-mentioned resin bed formation
The amount be gone is coordinated, and is further measured shown in the table 9 calculated in advance in a manner of solid component concentration turns into 20 mass %
Diluent:N-propyl acetate, stir 15 minutes, obtain the mass % of solid component concentration 20 paint a.
As paint b blending, using the Mitsui Chemicals as hydrogenation XDI shown in table 11
(strain) society system " タ ケ ネ ー ト " (registration mark) D120N and ダ イ キ Application industry (strain) system " ゼ ッ Off Le " (registration mark)
The amount that GK570 is pre-calculated in a manner of turning into 65/12 with the mass ratio of host with above-mentioned resin bed formation is coordinated, and is entered
One step measures the diluent shown in the table 10 that solid component concentration calculates in advance as 20 mass % mode:N-butyl acetate,
Stirring 15 minutes, obtain the mass % of solid component concentration 20 paint b.
27. inorganic compound film
Mitsubishi Chemical's (strain) has been used to make " テ ッ Network バ リ ア " (registration mark) LX.
28. polyester film
As polyester film, eastern レ (strain) has been used to make " Le ミ ラ ー " (registration mark) MX11.
29. lamination bonding agent (paint c)
As lamination bonding agent, 36 mass parts DIC (strain) dry lamination agent processed " デ ィ ッ Network De ラ イ " (registrars are measured
Mark) DIC (strain) systems using hexamethylene diisocyanate system resin as principal component of TAF-300,3 mass parts as curing agent
TAF ハ ー ド ナ ー AH-3 and 30 mass parts ethyl acetate, stir 15 minutes, obtain the mass %'s of solid component concentration 30
Paint c as lamination bonding agent.
(embodiment 1)
In a manner of as being formed table 1 Suo Shi, using being dried in vacuo 2 hours at 180 DEG C as the raw material for forming P1 layers
The mass parts of PET raw material As (PET-a) 77.5 and 22.5 mass parts cavity nucleator master batch A mixed, on the other hand, will make
For form P2 layers raw material in 180 DEG C of mass parts of the PET for being dried in vacuo 2 hours raw material As (PET-a) 72 and 28 mass parts oxygen
Change titanium master batch to be mixed, it is warming up to respectively at different 2 in 280 DEG C of extruder and melt and discharge, utilize charging
Block, after their interflow are made in a manner of lamination is P2/P1/P2, it is coextruded by T-shaped mould.Then, the molten sheet of coextrusion is made to exist
Surface temperature is held on 50 DEG C of drum applies the closely sealed cooling and solidifying of method progress using electrostatic, obtains non-stretched.Then, will
The non-stretched utilization is heated to after the roller group preheating of 80 DEG C of temperature, is being heated to the roller of 88 DEG C of temperature and is being adjusted to 25
DEG C temperature roller between add 3 times of speed difference, (longitudinal direction) is stretched to after 3 times along its length, utilizes 25 DEG C of temperature
Roller group cooled down, obtain uniaxial tension piece.Then, by the both ends of the uniaxial tension piece of acquisition while holding one with fixture
While the preheated zone for 80 DEG C of temperature being directed into stenter, then, continuously be held in 90 DEG C of heating region along with
Length direction direction at a right angle (width) is stretched to 3.5 times.Further, followed by the heat-treatment zone in stenter
Domain, implement the heat treatment of 20 seconds at 220 DEG C, it is equably slow on one side that the further width of an edge 4% carries out relaxation processes
Cooling, it is film-made polyester film.
To utilize the lamination ratio (P2 of the polyester film after above method film:P1:P2 1) is turned into:13:1 mode adjusts crowded
Go out the discharge rate of machine, further adjust linear velocity in a manner of integral thickness is turned into 150 μm, obtain the sun of embodiment 1
Can battery back-sheet film.
Confirm the voidage of solar cell backboard film obtained, as a result overall voidage is 21%, top layer
Ps, Ps in voidage ' all it is 2.5%, it is thus identified that and cyst areas ratio, as a result (Sc/Scs), (Sc/Scs ') they are 3.5.This exterior measuring
Polymer property is determined, fruiting characteristic viscosity IV is 0.70dl/g, and terminal carboxyl group amount is 14 equivalents/ton, as metallic element bag
It is 69ppm, Sb 241ppm, Na 29ppm containing Mn.
In addition, the solar cell backboard film on acquisition, has carried out solar cell backboard evaluating characteristics, as a result may be used
Know that there is very excellent adaptation and humidity resistance, ultra-violet resistance, thermal conductivity.Solar cell spy is further carried out
Property evaluation, as a result understand that there is very excellent output to improve property and adaptation.
(embodiment 2~11)
Using empty nucleator master batch amount and empty nucleator master batch G~I, or oxygen used in P2 layers is mixed in P1 layers
Change titanium master batch, the composition of P1 layers is changed as was the case with table 1, in addition, obtains solar energy similarly to Example 1
Battery back-sheet film.
Confirm the cyst areas ratio of solar cell backboard film obtained, as a result as shown in table 2, (Sc/Scs),
(Sc/Scs ') is changed with cavity nucleation dosage, species or dispersing aid.Specifically, empty nucleator quantitative change
More, in the increased embodiment 2,4~6 of species of dispersing aid, cyst areas ratio is small compared with Example 1.On the other hand confirm
, using polymethylpentene as empty nucleator species, or cavity nucleation dosage is few, the embodiment 3,7 without dispersing aid
In~9, cyst areas ratio is big compared with Example 1.In addition confirm, the embodiment for being added with inorganic particulate in P1 layers
10th, 11, cyst areas is than also slightly smaller compared with Example 1.
On the solar cell backboard film of acquisition, solar cell backboard evaluating characteristics have been carried out, have as a result been understood, such as
It is good scope although part adaptation and thermal conductivity are poor compared with Example 1 shown in table 2.
Further, characteristic of solar cell evaluation has been carried out, has as a result been understood, compared with Example 1, although along with cavity
Area than increase, output improves property and reduced, but is all good scope together with adaptation.
(embodiment 12~16)
Make the PET resin of the principal component as P1 layers and P2 layers as shown in table 3, be changed to PET-b~f, in addition, with
Embodiment 1 similarly obtains solar cell backboard film.
Confirm the cyst areas ratio of solar cell backboard film obtained, as a result as shown in table 4, (Sc/Scs),
(Sc/Scs ') all similarly to Example 1.In addition, polymer property is determined, and as a result in embodiment 12~15, inherent viscosity
IV and terminal carboxyl group amount are changed, and in embodiment 16, the species and content of contained metallic element are changed.
On the solar cell backboard film of acquisition, solar cell backboard evaluating characteristics have been carried out, have as a result been understood, such as
Shown in table 4, embodiment 12~15 is good scope although adaptation is poor compared with Example 1.In addition, humidity resistance
Reduced along with inherent viscosity IV reduction and the increase of terminal carboxyl group amount.In addition understand, thermal conductivity is similarly to Example 1
Ground is excellent.
Further, characteristic of solar cell evaluation has been carried out, has as a result been found, compared with Example 1, although along with end
The increase of carboxyl amount and exporting raising property reduces, but be all good scope together with adaptation.In addition understand, in embodiment
In 16, though inherent viscosity, terminal carboxyl group amount are similarly to Example 1, but the adaptation of solar cell backboard, solar cell
Output to improve property, adaptation poor, but be good scope.
(embodiment 17~25)
The lamination of solar cell backboard is entered as shown in table 3 than, film composition, the inorganic particulate amount of P2 layers, casting temperature
Go change, in addition, obtain solar cell backboard film similarly to Example 1.
Confirm the cyst areas ratio of solar cell backboard film obtained, as a result as shown in table 4, in embodiment 25
In, (Sc/Scs), (Sc/Scs ') are smaller than embodiment 1.In addition on polymer property, similarly to Example 1.
On the solar cell backboard film of acquisition, solar cell backboard evaluating characteristics have been carried out, have as a result been understood, such as
Shown in table 4, in embodiment 17~23, the thickness of P1 layers is set to T1 (μm), the thickness of P2 layers is set to T2 (μm), will be formed
(T1/T2) × W2 when the inorganic particle concentrations that the resin combination of P2 layers is included are set to W2 (quality %) is bigger, then with reality
Apply example 1 to compare, be good scope although adaptation is poor.In addition, ultra-violet resistance is dense along with the inorganic particulate of P2 layers
The reduction of degree and reduce.Thermal conductivity is excellent similarly to Example 1.Characteristic of solar cell evaluation has further been carried out, has been tied
Fruit understands that (T1/T2) × W2 is smaller, and compared with Example 1, output raising property is poorer, and (T1/T2) × W2 is bigger, and adaptation is got over
Difference, but it is good scope.In addition understand, in embodiment 25, although similarly to Example 1 have very it is excellent too
The output of the adaptation and solar cell of positive energy battery back-sheet improves property, adaptation, but when film is film-made, it is attached on engineering roller
Empty nucleator.
(embodiment 26)
As shown in table 3, the film for P1 layer monofilms forms and is added with inorganic particulate in P1 layers middle and high concentration, in addition,
Solar cell backboard film is obtained similarly to Example 1.
Confirm the cyst areas ratio of solar cell backboard film obtained, as a result as shown in table 4, with the phase of embodiment 1
Than (Sc/Scs), (Sc/Scs ') are small.In addition, on polymer property, terminal carboxyl group amount is more compared with Example 1.
On the solar cell backboard film of acquisition, solar cell backboard evaluating characteristics have been carried out, have as a result been understood, with
Embodiment 1 is compared, and is good scope although adaptation is poor, thermal conductivity is excellent similarly to Example 1.Understand, too
It is good scope although output raising property, adaptation are poor in positive energy battery behavior evaluation.In addition understand, with embodiment
25 similarly, adheres to empty nucleator on engineering roller when film is film-made.
(embodiment 27)
As the inorganic particulate of P2 layers, in order that barium sulfate master batch is used with barium sulfate particles, so that polyester film is folded
Layer is than (P2:P1:P2 1) is turned into:1:1 mode have adjusted the discharge rate of extruder, in addition, obtain similarly to Example 3
Obtained solar cell backboard film.Confirm the cyst areas ratio of solar cell backboard film obtained, as a result such as the institute of table 4
Show, compared with Example 3, (Sc/Scs), (Sc/Scs ') are small.
On the solar cell backboard film of acquisition, solar cell backboard evaluating characteristics have been carried out, have as a result been understood, though
It is so poor compared with Example 3, but there is good adaptation.Thermal conductivity is excellent similarly to Example 1.Further carry out
Characteristic of solar cell is evaluated, as a result it is recognized that while poor compared with Example 3, but has good adaptation, on output
Raising property, is the scope having no problem.
(embodiment 28)
Will be as shown in table 3 as the PET resin of P1 layers and the principal component of P2 layers, PET-g is changed to, in addition, with reality
Apply example 1 and similarly obtain solar cell backboard film.
Confirm obtain solar cell backboard film cyst areas ratio, result be (Sc/Scs), (Sc/Scs ') with
Embodiment 1 is equal extent.In addition polymer property is determined, as a result it is as shown in the table, inherent viscosity IV and terminal carboxyl group amount hair
Change is given birth to.
On the solar cell backboard film of acquisition, evaluating characteristics have been carried out, have as a result been understood, it is as shown in the table, adaptation
Well.In addition, humidity resistance slightly lower along with inherent viscosity IV reduction and the increase of terminal carboxyl group amount, but it is
The scope having no problem.In addition understand, thermal conductivity is excellent similarly to Example 1.
Further, characteristic of solar cell evaluation has been carried out, has as a result been understood, it is as shown in the table, compared with Example 1, although
Raising property is exported along with the increase of terminal carboxyl group amount somewhat to be reduced, but is all good scope together with adaptation.
(embodiment 29~31)
Linear velocity is changed in film, the integral thickness of film is changed as table 3, in addition, with implementation
Example 1 similarly obtains solar cell backboard film.
Confirm the cyst areas ratio of solar cell backboard film obtained, as a result (Sc/Scs), (Sc/Scs ') and reality
It is equal extent to apply example 1.
On the solar cell backboard film of acquisition, solar cell backboard evaluating characteristics have been carried out, have as a result been understood, such as
Shown in table 4, for the film of thin film thickness, adaptation somewhat reduces.In addition understand, thermal conductivity compared with Example 1, although somewhat
Reduce, but be good scope.
Characteristic of solar cell evaluation has further been carried out, has as a result been understood, it is as shown in the table, along with the reduction of film thickness,
The adaptation of solar cell somewhat reduces.In addition understand, output raising property compared with Example 1, also somewhat reduces, but be
Good scope.
(embodiment 32~44)
In a face of the P2 layers of the solar cell backboard film obtained by embodiment 1, it is bonded using as lamination
Agent and the coating c prepared, are coated using bar, are dried 45 seconds in 80 DEG C of temperature so that dried coating thickness into
Lamination bond layer is formd for 5.0 μm of modes.
Next, the functional layer B shown in table 5 is stacked on bond layer, aging 3 days, are made at a temperature of 40 DEG C
Solar cell backboard.Adaptation, humidity resistance, the ultra-violet resistance of the solar cell backboard of acquisition are good, at least Young
Any one of modulus, crimp height, water-vapor barrier are excellent.In addition, characteristic of solar cell is excellent.
(embodiment 45~49)
Operate, the functional layer B shown in table 6 is stacked on bond layer, at 40 DEG C in the same manner as embodiment 32~44
At a temperature of aging 3 days, solar cell backboard is made.Solar cell backboard shown in the embodiment 45~49 of acquisition it is closely sealed
Property, humidity resistance, ultra-violet resistance it is good, Young's modulus, crimp height become big, but water-vapor barrier is excellent.In addition, the sun
Energy battery behavior is excellent.
(embodiment 50~53)
In a face of the P2 layers of the solar cell backboard film obtained by embodiment 1, so that dried functional layer B
Thickness turn into table 6 shown in thickness mode, according to table 6, using bar, coating a, coating b are respectively coated, at 100 DEG C
At a temperature of dry 60 seconds, produce solar cell backboard film (in addition, in embodiment 50~53, voidage, (Sc/
Scs), (Sc/Scs ') is obtained based on the stack membrane for including functional layer B).Made using the solar cell backboard of acquisition with film
Carry out implementation evaluation for solar cell backboard, as a result backboard characteristic, characteristic of solar cell are all excellent.
(embodiment 54,55)
In a face of the P2 layers of the solar cell backboard film obtained by embodiment 1, it is bonded using as lamination
Agent and the coating c prepared, are coated using bar, are dried 45 seconds at a temperature of 80 DEG C, so that dried coating thickness
As 5.0 μm of mode, lamination bond layer is formd.
Next, the functional layer B ' shown in table 6 is stacked on bond layer, aging 3 days at a temperature of 40 DEG C.Enter one
Step, the coating c prepared as lamination bonding agent is used on non-lamination functional layer B ' another P2 layer, is entered using bar
Row coating, is dried 45 seconds at a temperature of 80 DEG C, in a manner of dried coating thickness is turned into 5.0 μm, forms lamination
Use bond layer.Lamination with bond layer superimposed layer table 6 shown in functional layer B, aging 3 days, are made at a temperature of 40 DEG C
Solar cell backboard.It is the adaptation of solar cell backboard shown in the embodiment 54,55 of acquisition, humidity resistance, resistance to ultraviolet
Linear good, Young's modulus, crimp height, water-vapor barrier are excellent.In addition, characteristic of solar cell is excellent.
(embodiment 56)
In a face of the P2 layers of the solar cell backboard film obtained by embodiment 1, so that dried functional layer B
Thickness turn into table 6 shown in thickness mode, according to table 6, coating a is coated with using bar, at a temperature of 100 DEG C dry
60 seconds, obtain the solar cell backboard film with functional layer B.Further, in the P2 layers of non-lamination functional layer B side
It is upper to use the coating c prepared as lamination bonding agent, it is coated using bar, is dried 45 seconds at a temperature of 80 DEG C,
In a manner of dried coating thickness is turned into 5.0 μm, lamination bond layer is formd.Folded on lamination bond layer
Functional layer B ' shown in layer table 6, aging 3 days, are made solar cell backboard at a temperature of 40 DEG C.The institute of embodiment 56 of acquisition
The Young's modulus of the solar cell backboard shown, crimp height become big, but water steaming block is excellent.In addition, solar cell is special
Property is also excellent.
(comparative example 1)
The cavity nucleation dosage for making P1 layers is 3 mass %, in addition, obtains solar-electricity similarly to Example 1
Pond backboard film.
Confirming the voidage of solar cell backboard film obtained, as a result understand, the overall voidage of film is 9%,
It deviate from the scope of the present invention.
It is further known that by the solar cell backboard that comparative example 1 obtains with film be adaptation, thermal conductivity difference solar energy
Battery back-sheet.In addition understand, on characteristic of solar cell, and the solar cell of output raising property and adaptation difference.
(comparative example 2~6)
In order that the composition of P1 layers is as table, using empty nucleator master batch amount and empty nucleator master batch G~J, or
In P1 layers, as empty nucleator, in order that barium sulfate master batch has been used with barium sulfate particles, in addition, with implementation
Example 1 similarly obtains solar cell backboard film.
Confirm the cyst areas ratio of solar cell backboard film obtained, as a result understand, (Sc/Scs), (Sc/
Scs ') it all deviate from the scope of the present invention.
It is further known that by comparative example 1~4 obtain solar cell backboard with film be adaptation difference solar cell
Backboard.Understand, comparative example 6 is the solar cell backboard of thermal conductivity difference.In addition understand, on characteristic of solar cell, and
At least any one poor solar cell in output raising property and adaptation.
(comparative example 7)
So that the lamination ratio (P2 of polyester film:P1:P2 1) is turned into:1:1 mode have adjusted the discharge rate of extruder, except this
In addition, solar cell backboard film is obtained similarly to Example 1.
Confirm the cavity of solar cell backboard film obtained, as a result understand, by C2-1 points and C2-2 points
Split and cavity is not present on horizontal line.
It is further known that solar cell backboard with film be adaptation, thermal conductivity difference solar cell backboard.In addition may be used
Know, on characteristic of solar cell, and the solar cell of output raising property and adaptation difference.
(comparative example 8)
PET resin as P1 layers and the principal component of P2 layers is changed to PET-h, in addition, similarly to Example 1
Obtain solar cell backboard film.
Confirm obtain solar cell backboard film cyst areas ratio, as a result (Sc/Scs), (Sc/Scs ') all with
Embodiment 1 is same, but determines polymer property, and as a result terminal carboxyl group amount is reduced to 40 equivalents/ton.
It is further known that by the solar cell backboard that comparative example 8 obtains with film be adaptation and humidity resistance difference too
Positive energy battery back-sheet.In addition understand, on characteristic of solar cell, and the sun poor both output raising property and adaptation
Can battery.
(comparative example 9)
To be formed in film with the monofilm of P1 layers from T-shaped mould extruded, non-stretched utilization being cooled down and obtained adds
After the roller group of heat to 70 DEG C of temperature is preheated, the infrared ray for being arranged at the position that two surfaces away from piece are 15mm is utilized
Heater, heat 0.72 second with 50W/cm output, (longitudinal direction) is stretched to 3 times along its length, in addition, with comparative example 2
Similarly obtain solar cell backboard film.
Confirm the cyst areas ratio of solar cell backboard film obtained, as a result different from comparative example 2, thickness direction
Cyst areas observe deviation.However, from film surface in the range of 10 μm of depth, only every 1 empty centre plane
Product diminishes, and is not having difference relative to the depth that film integral thickness is 25~75%, every 1 empty average area, (Sc/
Scs), (Sc/Scs ') is 1.0.
Understand it in the same manner as comparative example 2, is the poor sun of adaptation by the solar cell backboard film that comparative example 9 obtains
Can battery back-sheet.In addition understand, on characteristic of solar cell, and solar energy poor both output raising property and adaptation
Battery.
(comparative example 10)
Solar cell backboard has used the film of comparative example 6 with film, in addition, is operated in the same manner as embodiment 32, folds
Functional layer B shown in layer table 9, aging 3 days, are made solar cell backboard at a temperature of 40 DEG C.The solar cell of acquisition
The Young's modulus of backboard, crimp height are poor.It is that adaptation improves than comparative example 6 in addition, on characteristic of solar cell, but
It is the solar cell of output raising property difference.
(comparative example 11)
Solar cell backboard has used the film of comparative example 6 with film, in addition, is operated in the same manner as embodiment 42, folds
Functional layer B shown in layer table 9, aging 3 days, are made solar cell backboard at a temperature of 40 DEG C.The solar cell of acquisition
The Young's modulus of backboard, crimp height are poor.It is that adaptation and output raising property are poor too in addition, on characteristic of solar cell
Positive energy battery.
[table 1]
[table 2]
[table 3]
[table 4]
[table 5]
[table 6]
[table 7]
[table 8]
[table 9]
[table 10]
[table 11]
Industry utilizability
By the way that the solar cell backboard of the invention of the present invention is equipped on into the sun by the use of film as solar cell backboard
Can battery, so as to compared with conventional solar cell, though it is long-term be placed in outdoor in the case of, can also keep and solar energy
The adaptation of battery back-sheet, further improves generating efficiency.The present invention solar cell be not limited to photovoltaic power generation system,
The outdoor applications such as the power supply of small-sized electronic part, indoor purposes, can be suitable for various uses.
The explanation of symbol
1：Solar cell backboard
2：Sealing material
3：Generating element
4：Transparency carrier
5：The face of the side of sealing material 2 of solar cell backboard
6：With the face of the 2 opposite side of sealing material of solar cell backboard
7：The thickness direction of film
8：The face direction of film
9：Film thickness direction central point and the intermediate point (C2-1 points) on film surface
10：Film thickness direction central point (C1 points)
11：Film thickness direction central point and the intermediate point (C2-2 points) on film surface
12：By the segmentation horizontal line of C2-1 points
13：By the segmentation horizontal line of C1 points
14：By the segmentation horizontal line of C2-2 points
15：Cavity
16：Functional layer B
17：Solar cell backboard film
18：Functional layer B '
19：Adhesive linkage.
Claims (14)
1. a kind of solar cell backboard film, it is the polyester film containing cavity,
The overall voidage of film is more than 10%,
On the thickness direction section of the polyester film,
The line vertical with face direction is drawn from a surface of film to another surface, this is connected into another table from a surface
The line in face carries out 4 deciles with following 3 points in a thickness direction, draws the line parallel with the face direction of film by above-mentioned 3 points respectively
Split horizontal line, be film thickness direction central point C1 points, film thickness direction central point and the intermediate point on film surface at above-mentioned 3 points
C2-1 points, C2-2 points,
Will by C1 points segmentation horizontal line present on every 1 empty average area be set to Sc (μm2), C2-1 will be passed through
Point segmentation horizontal line present on every 1 empty average area be set to Scs (μm2), will be horizontal by the segmentation of C2-2 points
Every 1 empty average area present on line be set to Scs ' (μm2) when, at least one of (Sc/Scs), (Sc/Scs ') are
Less than more than 1.1 35, the terminal carboxyl group amount of polyester resin of polyester film is formed as below 35 equivalents/ton,
In addition, (Sc/Scs), (Sc/Scs ') are abreast cut off with the length direction of film as by any the 5 of polyester film
The thickness direction section of the film of film and abreast cut off what the thickness direction section of the film of film obtained with the width of film
The average value of value and obtain.
2. solar cell backboard film according to claim 1, it is characterised in that the integral thickness of polyester film is 45 μm
More than.
3. solar cell backboard film according to claim 1 or 2, the polyester film has the lamination knot for the above that haves three layers
Structure, the resin combination for forming at least one of the resin combination on two top layers contain inorganic particulate, the layer without top layer
Containing cavity, wherein a top layer is set into P2 layers, another top layer is set to P2 ' layers, the layer without top layer is set to P1
Layer.
4. solar cell backboard film according to claim 3, it is characterised in that the thickness of P1 layers is being set to T1 (μ
M), the thickness of P2 layers is set to T2 (μm), the thickness of P2 ' layers is set to T2 ' (μm), the resin combination for forming P2 layers is wrapped
The inorganic particle concentrations contained are set to W2 (quality %), and the inorganic particle concentrations that the resin combination for forming P2 ' layers is included are set
For W2 ' (quality %) when,
(T1/T2) at least one of × W2, (T1/T2 ') × W2 ' are less than more than 0.35 1.50.
5. the solar cell backboard film according to claim 3 or 4, the thickness of P1 layers is being set to T1 (μm), by P2
Layer thickness be set to T2 (μm), when the thickness of P2 ' layers is set into T2 ' (μm), T1/ (T1+T2+T2 ') be more than 0.6 0.99 with
Under, T2/ (T1+T2+T2 ') and T2 '/(T1+T2+T2 ') they are less than more than 0.01 0.2.
6. the solar cell backboard film according to any one of claim 3~5, the voidage Ps and P2 ' of P2 layers
The voidage Ps ' of layer is less than 5.0%.
7. the solar cell backboard film according to any one of claim 1~6, thermal conductivity be 0.9W/mK with
Under.
8. a kind of solar cell backboard, it is that there is the solar cell backboard film described in any one of claim 1~7
The solar cell backboard of at least 1 layer function above layer, the solar cell backboard are 4.0GPa with the Young's modulus of film
Hereinafter, the Young's modulus of the solar cell backboard is below 4.0GPa.
9. solar cell backboard according to claim 8, the functional layer includes at least one in the following group 1
Kind or a variety of combinations,
Group 1：Polyethylene, polypropylene, vinyl-vinyl acetate copolymer.
10. solar cell backboard according to claim 8, the functional layer includes at least one in the following group 2
Kind or a variety of combinations,
Group 2：Polyvinyl fluoride (PVF), poly- 1,1- difluoroethylenes (PVDF), ethylene-tetrafluoroethylene copolymer (ETFE), tetrafluoro second
Alkene-hexafluoropropylene copolymer (FEP).
11. solar cell backboard according to claim 8, the functional layer includes polyurethane.
12. solar cell backboard according to claim 8, the functional layer includes inorganic compound.
13. solar cell backboard according to claim 8, the functional layer includes polyester, the solar battery back
Plate is stacked with film and the functional layer via adhesive linkage.
14. a kind of solar cell, it use solar cell backboard film described in any one of claim 1~7,
Or the solar cell backboard described in any one of claim 8~13.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015107210 | 2015-05-27 | ||
| JP2015-107210 | 2015-05-27 | ||
| PCT/JP2016/064417 WO2016190146A1 (en) | 2015-05-27 | 2016-05-16 | Film for solar-cell back sheet, solar-cell back sheet including same, and solar cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107534067A true CN107534067A (en) | 2018-01-02 |
| CN107534067B CN107534067B (en) | 2020-07-07 |
Family
ID=57393281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680023781.3A Active CN107534067B (en) | 2015-05-27 | 2016-05-16 | Film for solar cell back sheet, and solar cell |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6743698B2 (en) |
| KR (1) | KR20180013845A (en) |
| CN (1) | CN107534067B (en) |
| TW (1) | TW201705509A (en) |
| WO (1) | WO2016190146A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079223A (en) * | 2019-05-15 | 2019-08-02 | 王崧 | It is a kind of it is high adherency, low permeable photovoltaic cell component packaging EVA adhesive film |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209440968U (en) * | 2015-12-24 | 2019-09-27 | 株式会社村田制作所 | Resin sheet |
| JP7060921B2 (en) * | 2017-04-18 | 2022-04-27 | キヤノン株式会社 | Electrophotographic photosensitive members, process cartridges and electrophotographic equipment |
| CN107553999A (en) * | 2017-09-08 | 2018-01-09 | 乐凯胶片股份有限公司 | A kind of PET sheet and its application |
| JPWO2019244313A1 (en) * | 2018-06-21 | 2020-12-17 | 三菱電機株式会社 | Data processing equipment, data processing methods and solar cell module manufacturing methods |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002100788A (en) * | 2000-09-20 | 2002-04-05 | Mitsubishi Alum Co Ltd | Back sheet for solar battery cover material, and solar battery module using the same |
| CN102569451A (en) * | 2010-10-20 | 2012-07-11 | 苏州尚善新材料科技有限公司 | Solar module back veneer comprising non-solvent bonding layers and manufacturing method thereof |
| JP2012253203A (en) * | 2011-06-03 | 2012-12-20 | Toray Advanced Film Co Ltd | Rear surface protective sheet for solar cell module and solar cell module using the same |
| JP2013235219A (en) * | 2012-05-11 | 2013-11-21 | Toray Ind Inc | Laminated polyester film |
| CN103493219A (en) * | 2011-04-18 | 2014-01-01 | 阿肯马法国公司 | Bilayer film for a photovoltaic module |
| JP2014058154A (en) * | 2012-08-23 | 2014-04-03 | Toppan Printing Co Ltd | Gas barrier film and protective sheet for solar battery module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003139926A (en) * | 2001-10-31 | 2003-05-14 | Toray Ind Inc | Optical reflection film and backlight device for image display using the same |
| JP2014162107A (en) * | 2013-02-25 | 2014-09-08 | Fujifilm Corp | White multilayer polyester film, laminated film, back sheet for solar cell module and solar cell module |
-
2016
- 2016-05-16 KR KR1020177026257A patent/KR20180013845A/en unknown
- 2016-05-16 JP JP2016537583A patent/JP6743698B2/en active Active
- 2016-05-16 WO PCT/JP2016/064417 patent/WO2016190146A1/en active Application Filing
- 2016-05-16 CN CN201680023781.3A patent/CN107534067B/en active Active
- 2016-05-25 TW TW105116258A patent/TW201705509A/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002100788A (en) * | 2000-09-20 | 2002-04-05 | Mitsubishi Alum Co Ltd | Back sheet for solar battery cover material, and solar battery module using the same |
| CN102569451A (en) * | 2010-10-20 | 2012-07-11 | 苏州尚善新材料科技有限公司 | Solar module back veneer comprising non-solvent bonding layers and manufacturing method thereof |
| CN103493219A (en) * | 2011-04-18 | 2014-01-01 | 阿肯马法国公司 | Bilayer film for a photovoltaic module |
| JP2012253203A (en) * | 2011-06-03 | 2012-12-20 | Toray Advanced Film Co Ltd | Rear surface protective sheet for solar cell module and solar cell module using the same |
| JP2013235219A (en) * | 2012-05-11 | 2013-11-21 | Toray Ind Inc | Laminated polyester film |
| JP2014058154A (en) * | 2012-08-23 | 2014-04-03 | Toppan Printing Co Ltd | Gas barrier film and protective sheet for solar battery module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079223A (en) * | 2019-05-15 | 2019-08-02 | 王崧 | It is a kind of it is high adherency, low permeable photovoltaic cell component packaging EVA adhesive film |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180013845A (en) | 2018-02-07 |
| CN107534067B (en) | 2020-07-07 |
| TW201705509A (en) | 2017-02-01 |
| JPWO2016190146A1 (en) | 2018-04-12 |
| WO2016190146A1 (en) | 2016-12-01 |
| JP6743698B2 (en) | 2020-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107534067A (en) | Solar cell backboard film and the solar cell backboard and solar cell for having used the solar cell backboard film | |
| CN104170098B (en) | Sealing rear surface of solar cell sheet material and solar module | |
| CN102597104B (en) | Biaxially oriented polyester film | |
| JP6051868B2 (en) | Laminated sheet and method for producing the same | |
| CN102037567A (en) | Solar cell back surface protective film, and solar cell module provided with same | |
| JP5276052B2 (en) | Solar cell back surface protective film, method for producing the same, and solar cell module | |
| JP5276049B2 (en) | Solar cell back surface protective film, method for producing the same, and solar cell module | |
| JP2014075508A (en) | Sheet for solar cell back protection | |
| EP2624308A1 (en) | Polyester film for protective material for back surface of solar battery | |
| WO2016052133A1 (en) | Layered product | |
| CN106030828B (en) | Stacked film, solar module backboard and solar module | |
| CN108369966A (en) | Backboard for solar cell module | |
| CN106463558A (en) | Polyester film for solar cell back sheets | |
| JP5869793B2 (en) | Substrate film for solar cell, back sheet for solar cell, and solar cell module | |
| JP2017212438A (en) | Back sheet for solar battery module and solar battery module | |
| WO2015098520A1 (en) | Sheet for solar cell backside protection | |
| JP2013008883A (en) | Polyester film for solar cell backside sealing material | |
| JP2008211158A (en) | Electric-electronic insulating sheet | |
| JP2018083873A (en) | Polyester film, and solar cell back sheet and solar cell comprising the same | |
| JP2013201384A (en) | Backside protective film for solar battery, and solar battery module | |
| JP2018088508A (en) | Solar cell back sheet, solar cell module, and manufacturing method for solar cell module | |
| JP2010177385A (en) | Backsheet for solar cell | |
| JP2014049491A (en) | Back surface protective film for solar cell, and solar cell module | |
| JP2014049490A (en) | Back surface protective film for solar cell, and solar cell module | |
| JP2015044333A (en) | Readily adhesive sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |