CN114989745A - 一种高透过率的光伏封装胶膜 - Google Patents
一种高透过率的光伏封装胶膜 Download PDFInfo
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- 239000002313 adhesive film Substances 0.000 title claims abstract description 35
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 31
- 238000002834 transmittance Methods 0.000 title claims abstract description 27
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 14
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 230000006911 nucleation Effects 0.000 claims abstract description 7
- 238000010899 nucleation Methods 0.000 claims abstract description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 5
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 5
- 239000003999 initiator Substances 0.000 claims abstract description 5
- 239000004611 light stabiliser Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- -1 1,1,3, 3-tetramethylbutyl Chemical group 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 10
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- 239000008393 encapsulating agent Substances 0.000 claims description 8
- 229940116351 sebacate Drugs 0.000 claims description 7
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- HWSSEYVMGDIFMH-UHFFFAOYSA-N 2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOC(=O)C(C)=C HWSSEYVMGDIFMH-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- FRGPKMWIYVTFIQ-UHFFFAOYSA-N triethoxy(3-isocyanatopropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCN=C=O FRGPKMWIYVTFIQ-UHFFFAOYSA-N 0.000 claims description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 3
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims description 3
- GTELLNMUWNJXMQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO GTELLNMUWNJXMQ-UHFFFAOYSA-N 0.000 claims description 3
- WBJWXIQDBDZMAW-UHFFFAOYSA-N 2-hydroxynaphthalene-1-carbonyl chloride Chemical compound C1=CC=CC2=C(C(Cl)=O)C(O)=CC=C21 WBJWXIQDBDZMAW-UHFFFAOYSA-N 0.000 claims description 3
- MTLPQQABKILLSM-UHFFFAOYSA-N CCCCC(C[Si](OC)(OC)OC)C1CC2OC2CC1 Chemical compound CCCCC(C[Si](OC)(OC)OC)C1CC2OC2CC1 MTLPQQABKILLSM-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 3
- PYHXGXCGESYPCW-UHFFFAOYSA-N alpha-phenylbenzeneacetic acid Natural products C=1C=CC=CC=1C(C(=O)O)C1=CC=CC=C1 PYHXGXCGESYPCW-UHFFFAOYSA-N 0.000 claims description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 3
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 claims description 3
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 3
- NZYMWGXNIUZYRC-UHFFFAOYSA-N hexadecyl 3,5-ditert-butyl-4-hydroxybenzoate Chemical compound CCCCCCCCCCCCCCCCOC(=O)C1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NZYMWGXNIUZYRC-UHFFFAOYSA-N 0.000 claims description 3
- MWHNJARVACPRAF-UHFFFAOYSA-N hydroxy 2-methylbutan-2-yl carbonate Chemical compound CCC(C)(C)OC(=O)OO MWHNJARVACPRAF-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- SWGZAKPJNWCPRY-UHFFFAOYSA-N methyl-bis(trimethylsilyloxy)silicon Chemical compound C[Si](C)(C)O[Si](C)O[Si](C)(C)C SWGZAKPJNWCPRY-UHFFFAOYSA-N 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- OXGOEZHUKDEEKS-UHFFFAOYSA-N 3-tert-butylperoxy-1,1,5-trimethylcyclohexane Chemical compound CC1CC(OOC(C)(C)C)CC(C)(C)C1 OXGOEZHUKDEEKS-UHFFFAOYSA-N 0.000 claims description 2
- UQAMDAUJTXFNAD-UHFFFAOYSA-N 4-(4,6-dichloro-1,3,5-triazin-2-yl)morpholine Chemical compound ClC1=NC(Cl)=NC(N2CCOCC2)=N1 UQAMDAUJTXFNAD-UHFFFAOYSA-N 0.000 claims description 2
- KDVYCTOWXSLNNI-UHFFFAOYSA-N 4-t-Butylbenzoic acid Chemical compound CC(C)(C)C1=CC=C(C(O)=O)C=C1 KDVYCTOWXSLNNI-UHFFFAOYSA-N 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- ZMOHMFDVFGEMSI-UHFFFAOYSA-N butanedioic acid;1-hydroxy-2,2,6,6-tetramethylpiperidin-4-ol Chemical compound OC(=O)CCC(O)=O.CC1(C)CC(O)CC(C)(C)N1O ZMOHMFDVFGEMSI-UHFFFAOYSA-N 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 2
- GSECCTDWEGTEBD-UHFFFAOYSA-N tert-butylperoxycyclohexane Chemical compound CC(C)(C)OOC1CCCCC1 GSECCTDWEGTEBD-UHFFFAOYSA-N 0.000 claims description 2
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 claims description 2
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 claims description 2
- 239000005050 vinyl trichlorosilane Substances 0.000 claims description 2
- KDGNCLDCOVTOCS-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy propan-2-yl carbonate Chemical compound CC(C)OC(=O)OOC(C)(C)C KDGNCLDCOVTOCS-UHFFFAOYSA-N 0.000 claims 1
- FIYMNUNPPYABMU-UHFFFAOYSA-N 2-benzyl-5-chloro-1h-indole Chemical compound C=1C2=CC(Cl)=CC=C2NC=1CC1=CC=CC=C1 FIYMNUNPPYABMU-UHFFFAOYSA-N 0.000 claims 1
- KWUPBWNLCARUJV-UHFFFAOYSA-N 2-tert-butyl-4-hydroxybenzoic acid Chemical compound CC(C)(C)C1=CC(O)=CC=C1C(O)=O KWUPBWNLCARUJV-UHFFFAOYSA-N 0.000 claims 1
- OBNCKNCVKJNDBV-UHFFFAOYSA-N butanoic acid ethyl ester Natural products CCCC(=O)OCC OBNCKNCVKJNDBV-UHFFFAOYSA-N 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000010345 tape casting Methods 0.000 description 8
- 239000013078 crystal Substances 0.000 description 5
- HSLFISVKRDQEBY-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)cyclohexane Chemical compound CC(C)(C)OOC1(OOC(C)(C)C)CCCCC1 HSLFISVKRDQEBY-UHFFFAOYSA-N 0.000 description 3
- CSGAUKGQUCHWDP-UHFFFAOYSA-N 1-hydroxy-2,2,6,6-tetramethylpiperidin-4-ol Chemical compound CC1(C)CC(O)CC(C)(C)N1O CSGAUKGQUCHWDP-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- HARQWLDROVMFJE-UHFFFAOYSA-N ethyl 3,3-bis(tert-butylperoxy)butanoate Chemical compound CCOC(=O)CC(C)(OOC(C)(C)C)OOC(C)(C)C HARQWLDROVMFJE-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- NALFRYPTRXKZPN-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane Chemical compound CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1 NALFRYPTRXKZPN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- IXDAOYYROAXYLL-UHFFFAOYSA-N tert-butyl 2-ethylhexoxy carbonate Chemical compound CCCCC(CC)COOC(=O)OC(C)(C)C IXDAOYYROAXYLL-UHFFFAOYSA-N 0.000 description 1
- BJDLPDPRMYAOCM-UHFFFAOYSA-N triethoxy(propan-2-yl)silane Chemical compound CCO[Si](OCC)(OCC)C(C)C BJDLPDPRMYAOCM-UHFFFAOYSA-N 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- C09J123/04—Homopolymers or copolymers of ethene
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Abstract
本发明涉及光伏胶膜技术领域,尤其是一种高透过率的光伏封装胶膜,所述光伏封装胶膜主要是由质量配比如下的原料制成:乙烯醋酸乙烯共聚物100份,助交联剂含量为0.2~1.5份,光稳定剂含量为0.05~1份,引发剂含量为0.2~2份,硅烷偶联剂含量为0.1~2份,成核增透剂含量为0.01~4份。本发明设计的高透过率光伏封装胶膜增强了对太阳光的利用率,减少光学损失,因此提高了电池组件的光电转换效率,达到降本增效的目的。
Description
技术领域
本发明涉及一种封装胶膜,尤其涉及一种高透过率的光伏封装胶膜。
背景技术
目前,全球气候变暖和能源危机日益加重,太阳能作为一种绿色、可持续能源,可以充分利用来改善全球生态系统、能源消耗等问题。近年来,随着科技日新月异,我国的光伏产业得到快速发展。光伏组件作为核心组件,在太阳能发电系统中扮演着不可替代的作用。
一般来说,常规太阳能光伏组件的结构由上到下5层组成:玻璃、光伏胶膜、电池片、光伏胶膜、玻璃/背板。太阳能电池发电的原理是利用硅等半导体材料的光电效应,将太阳能直接转化为电能。但是,从目前来看,国内太阳能电池的光电转换效率只能达到18%~19%左右,这意味着太阳能电池在能量转换过程中存在大量的光学损失。作为封装硅电池片的光伏胶膜,它的透光率对电池组件的发电效率起到关键性作用。
发明内容
本发明主要是解决现有技术中存在的不足,提供一种降低光学损失,提高电池组件的光电转换效率的角度出发,设计一种高透过率的光伏封装胶膜。
本发明的上述技术问题主要是通过下述技术方案得以解决的:
一种高透过率的光伏封装胶膜,包括以下重量份数配比的原料:乙烯醋酸乙烯共聚物100份,助交联剂含量为0.2~1.5份,光稳定剂含量为0.05~1份,引发剂含量为0.2~2份,硅烷偶联剂含量为0.1~2份,成核增透剂含量为0.01~4份。
作为优选,所述乙烯醋酸乙烯共聚物中醋酸乙烯酯的含量为20%~35%,熔融指数为10~40g/10min。
作为优选,所述助交联剂由三乙二醇二甲基丙烯酸酯、聚乙二醇二甲基丙烯酸酯、三羟甲基丙烷三丙烯酸酯、三烯丙基异氧脲酸酯、乙氧化三羟甲基丙烷三丙烯酸酯、三异丙基异三聚氰酸酯的的一种或多种按照任意配比混合组成。
作为优选,所述光稳定剂由聚丁二酸(4-羟基-2,2,6,6-四甲基-1-哌啶醇)酯、癸二酸双-2,2,6,6-四甲基哌啶醇酯、双-1-癸烷氧基-2,2,6,6-四甲基哌啶-4-醇癸二酸酯、聚-{[6-[(1,1,3,3,-四甲基丁基)-胺基]1,3,5,-三嗪-2,4-二基][(2,2,6,6-四甲基哌啶基)-亚胺基]-1,6-己烷二基-[(2,2,6,6-四甲基哌啶基)-亚胺基]}、3,5-二叔丁基-4-羟基-苯甲酸十六烷基酯、2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪中的一种或多种按照任意配比混合组成。
作为优选,所述引发剂由3,3-二(叔丁基过氧)丁酸乙酯、1,1-双(叔丁基过氧)环己烷、1,1-双(叔丁基过氧)-3,3,5-三甲基环已烷、叔丁基过氧化碳酸异丙酯、过氧化碳酸叔戊酯、过氧化3,3,5三甲基己酸叔丁酯、叔丁基过氧化碳酸-2-乙基已酯中的一种或多种按照任意配比混合组成。
作为优选,所述硅烷偶联剂由3-氨基丙基三乙氧基硅烷、异氰酸丙基三乙氧基硅烷、异丁基三乙氧基硅烷、2-(3,4-环氧环已基)已基三甲氧基硅烷、1,1,1,3,5,5,5-七甲基三硅氧烷、乙烯基三氯硅烷、乙烯基三乙氧基硅烷、乙烯基三(β-甲氧基乙氧基)硅烷、乙烯基三甲氧基硅烷中的一种或多种按照任意配比混合组成。
作为优选,所述成核增透剂由纳米氧化镁、二氧化钛、TM3、4-叔丁基苯甲酸、二苯基乙酸、二环已基-2,6二甲酰胺基奈以及经过接枝改性的高纯纳米二氧化硅中的一种或多种按照任意配比混合组成。
作为优选,混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷工序,制得光伏封装胶膜;所述光伏封装胶膜的厚度为0.1~0.7mm。
采用本发明的技术方案的有益效果是:
1.本发明制备的高透过率的光伏封装胶膜,不仅增加了对可见光的透过性,减少光学损失,而且提高了电池组件的光电效率,降低成本,最大限度地利用了绿色、可持续能源—太阳光。
2.通过在光伏封装胶膜配方中添加成核增透剂,使其结晶部分进一步微细化,晶体尺寸减小,从而晶体小于可见光波长,因此增强了光伏封装胶膜的透光率。
具体实施例
下面通过实施例,对本发明的技术方案作进一步具体的说明。
实施例1:本例中,以质量分数计,100质量份的乙烯-醋酸乙烯酯共聚物、0.6质量份的三乙二醇二甲基丙烯酸酯、0.1质量份的聚丁二酸(4-羟基-2,2,6,6-四甲基-1-哌啶醇)酯、0.8质量份的1,1-双(叔丁基过氧)环己烷、0.6质量份的异氰酸丙基三乙氧基硅烷、0.2质量份的纳米二氧化硅。将上述混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷等工序,制得光伏封装胶膜。
实施例2:本例中,以质量分数计,100质量份的乙烯-醋酸乙烯酯共聚物、0.6质量份的三烯丙基异氧脲酸酯、0.1质量份的癸二酸双-2,2,6,6-四甲基哌啶醇酯、0.8质量份的过氧化碳酸叔戊酯、0.6质量份的乙烯基三甲氧基硅烷、0.2质量份的纳米氧化镁。将上述混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷等工序,制得光伏封装胶膜。
实施例3:本例中,以质量分数计,100质量份的乙烯-醋酸乙烯酯共聚物、0.6质量份的三异丙基异三聚氰酸酯、0.1质量份的双-1-癸烷氧基-2,2,6,6-四甲基哌啶-4-醇癸二酸酯、0.8质量份的3,3-二(叔丁基过氧)丁酸乙酯、0.6质量份的1,1,1,3,5,5,5-七甲基三硅氧烷、0.2质量份的TM3。将上述混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷等工序,制得光伏封装胶膜。
实施例4:本例中,以质量分数计,100质量份的乙烯-醋酸乙烯酯共聚物、0.6质量份的乙氧化三羟甲基丙烷三丙烯酸酯、0.1质量份的癸二酸双-2,2,6,6-四甲基哌啶醇酯、0.8质量份的1,1-双(叔丁基过氧)-3,3,5-三甲基环已烷、0.6质量份的乙烯基三(β-甲氧基乙氧基)硅烷、0.2质量份的二苯基乙酸。将上述混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷等工序,制得光伏封装胶膜。
实施例5:本例中,以质量分数计,100质量份的乙烯-醋酸乙烯酯共聚物、0.6质量份的三羟甲基丙烷三丙烯酸酯、0.1质量份的2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪、0.8质量份的叔丁基过氧化碳酸异丙酯、0.6质量份的2-(3,4-环氧环已基)已基三甲氧基硅烷、0.2质量份的二环已基-2,6二甲酰胺基奈。将上述混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷等工序,制得光伏封装胶膜。
实施例6:本例中,以质量分数计,100质量份的乙烯-醋酸乙烯酯共聚物、0.6质量份的聚乙二醇二甲基丙烯酸酯、0.1质量份的3,5-二叔丁基-4-羟基-苯甲酸十六烷基酯、0.8质量份的叔丁基过氧化碳酸-2-乙基已酯、0.6质量份的3-氨基丙基三乙氧基硅烷、0.2质量份的二氧化钛。将上述混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷等工序,制得光伏封装胶膜。
比较例1:本例中,以质量分数计,100质量份的乙烯-醋酸乙烯酯共聚物、0.6质量份的三乙二醇二甲基丙烯酸酯、0.1质量份的聚丁二酸(4-羟基-2,2,6,6-四甲基-1-哌啶醇)酯、0.8质量份的1,1-双(叔丁基过氧)环己烷、0.6质量份的异氰酸丙基三乙氧基硅烷。将上述混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷等工序,制得光伏封装胶膜。
比较例2:本例中,以质量分数计,100质量份的乙烯-醋酸乙烯酯共聚物、0.6质量份的三乙二醇二甲基丙烯酸酯、0.1质量份的聚丁二酸(4-羟基-2,2,6,6-四甲基-1-哌啶醇)酯、0.8质量份的1,1-双(叔丁基过氧)环己烷、0.6质量份的异氰酸丙基三乙氧基硅烷、0.2质量份的二环已基-2,6二甲酰胺基奈。将上述混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷等工序,制得光伏封装胶膜。
比较例3:本对比例的封装胶膜为市面上销售量前三的普通高透EVA封装胶膜。
性能测试:
通过将上述实施例和对比例得到的光伏封装胶膜层压后,用紫外-可见分光光度计测光伏封装胶膜的透光率。
表1实施例1-6和对比例1-3的光伏封装胶膜透过率测试结果
封装材料 | 透光率/% |
实施例1 | 92.75 |
实施例2 | 92.45 |
实施例3 | 92.61 |
实施例4 | 92.37 |
实施例5 | 92.84 |
实施例6 | 92.49 |
对比例1 | 91.51 |
对比例2 | 92.39 |
对比例3 | 92.24 |
从上述透光率的对比数据可以看出,使用本发明制备的光伏封装胶膜具有较高的透光率,透光率几乎都在92.3%以上。通过上述实施例可知,通过在光伏封装胶膜体系中加入成核增透剂,可以使其结晶部分进一步微细化,结果使晶体小于可见光波长,进而使透光率增强。这样可以提高电池组件的光电转换效率,起到降本增效的目的。
上述实施方式仅为本发明专利的优选实施方式,不能以此来限定本发明专利保护的范围,本领域的技术人员在本发明专利的基础上所做的任何非实质性的变化及替换,都应涵盖在本发明专利所要求保护范围之内。
Claims (8)
1.一种高透过率的光伏封装胶膜,其特征在于包括以下重量份数配比的原料:乙烯醋酸乙烯共聚物100份,助交联剂含量为0.2~1.5份,光稳定剂含量为0.05~1份,引发剂含量为0.2~2份,硅烷偶联剂含量为0.1~2份,成核增透剂含量为0.01~4份。
2.根据权利要求书1所述的一种高透过率的光伏封装胶膜,其特征在于:所述乙烯醋酸乙烯共聚物中醋酸乙烯酯的含量为20%~35%,熔融指数为10~40g/10min。
3.根据权利要求书1所述的一种高透过率的光伏封装胶膜,其特征在于:所述助交联剂由三乙二醇二甲基丙烯酸酯、聚乙二醇二甲基丙烯酸酯、三羟甲基丙烷三丙烯酸酯、三烯丙基异氧脲酸酯、乙氧化三羟甲基丙烷三丙烯酸酯、三异丙基异三聚氰酸酯的的一种或多种按照任意配比混合组成。
4.根据权利要求书1所述的一种高透过率的光伏封装胶膜,其特征在于:所述光稳定剂由聚丁二酸(4-羟基-2,2,6,6-四甲基-1-哌啶醇)酯、癸二酸双-2,2,6,6-四甲基哌啶醇酯、双-1-癸烷氧基-2,2,6,6-四甲基哌啶-4-醇癸二酸酯、聚-{[6-[(1,1,3,3,-四甲基丁基)-胺基]1,3,5,-三嗪-2,4-二基][(2,2,6,6-四甲基哌啶基)-亚胺基]-1,6-己烷二基-[(2,2,6,6-四甲基哌啶基)-亚胺基]}、3,5-二叔丁基-4-羟基-苯甲酸十六烷基酯、2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪中的一种或多种按照任意配比混合组成。
5.根据权利要求书1所述的一种高透过率的光伏封装胶膜,其特征在于:所述引发剂由3,3-二(叔丁基过氧)丁酸乙酯、1,1-双(叔丁基过氧)环己烷、1,1-双(叔丁基过氧)-3,3,5-三甲基环已烷、叔丁基过氧化碳酸异丙酯、过氧化碳酸叔戊酯、过氧化3,3,5三甲基己酸叔丁酯、叔丁基过氧化碳酸-2-乙基已酯中的一种或多种按照任意配比混合组成。
6.根据权利要求书1所述的一种高透过率的光伏封装胶膜,其特征在于:所述硅烷偶联剂由3-氨基丙基三乙氧基硅烷、异氰酸丙基三乙氧基硅烷、异丁基三乙氧基硅烷、2-(3,4-环氧环已基)已基三甲氧基硅烷、1,1,1,3,5,5,5-七甲基三硅氧烷、乙烯基三氯硅烷、乙烯基三乙氧基硅烷、乙烯基三(β-甲氧基乙氧基)硅烷、乙烯基三甲氧基硅烷中的一种或多种按照任意配比混合组成。
7.根据权利要求书1所述的一种高透过率的光伏封装胶膜,其特征在于:所述成核增透剂由纳米氧化镁、二氧化钛、TM3、4-叔丁基苯甲酸、二苯基乙酸、二环已基-2,6二甲酰胺基奈以及经过接枝改性的高纯纳米二氧化硅中的一种或多种按照任意配比混合组成。
8.根据权利要求书1-7任一项所述的一种高透过率的光伏封装胶膜,其特征在于:混合物经预混合、熔融挤出、流延成膜、经冷却定型后分切和收卷工序,制得光伏封装胶膜;所述光伏封装胶膜的厚度为0.1~0.7mm。
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