太阳能电池组件用POE封装胶膜的研制
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摘要
以乙烯-α-烯烃共聚物(POE)为基体、过氧化-2-乙基己酯碳酸叔丁酯为交联剂、三烯丙基异氰脲酸酯为助交联剂、乙烯基三甲氧基硅烷为硅烷偶联剂、马来酸酐(MAH)为改性剂,采用熔融挤出法制得母粒,再采用流延成膜法制备了纯POE胶膜(S1)、MAH改性POE胶膜(S2)和硅烷偶联剂改性POE胶膜(S3)。研究结果表明:S3的交联度(66%)、透光率(89%)、粘接性能(与玻璃、TPT膜的剥离强度分别为130、86 N/cm)和耐湿热老化性能(85℃、相对湿度85%时老化1 000 h后黄变指数变化1.1%、与玻璃的剥离强度降幅15%)相对最好,由S3封装的太阳能电池组件之功率衰减(为5.2%)明显低于传统EVA(乙烯-醋酸乙烯酯共聚物)胶膜封装的太阳能电池组件,有利于改善光伏电站的运营效益。
Firstly,the master batches were made by melt extrusion method,then the pure POE(ethylene-α-olefincopolymer)film(S1),MAH(maleic anhydride)modified POE film(S2)and silane coupler modified POE film(S3)were further prepared by casting film-forming method when POE was used as matrix,peroxide-2-ethyl hexa-estertert-butyl carbonate was used as crosslinker,triallyl isocyanurate was used as assistant crosslinker,vinyl trimethoxysilane was used as silane coupler,and MAH was used as modifier. The research results showed that the S3 canimprove the operation benefit of photovoltaic power station because the S3 had the relatively optimal crosslinkingdegree(66%),light transmittance(89%),bonding properties(peeling strengths between S3 and glass,S3 and TPTfilm at 130,86 N/cm respectively)and wet-heat aging resistance(yellowing index change at 1.1% after aging 1 000 hat 85 ℃ and relative humidity 85%,and the decreasing amplitude of peeling strength betwee S3 and glass at 15%).The power damping(5.2%)of solar cell module encapsulated by S3 was obviously less than that by traditionalEVA(ethylene-vinyl acetate copolymer)film.
Firstly,the master batches were made by melt extrusion method,then the pure POE(ethylene-α-olefincopolymer)film(S1),MAH(maleic anhydride)modified POE film(S2)and silane coupler modified POE film(S3)were further prepared by casting film-forming method when POE was used as matrix,peroxide-2-ethyl hexa-estertert-butyl carbonate was used as crosslinker,triallyl isocyanurate was used as assistant crosslinker,vinyl trimethoxysilane was used as silane coupler,and MAH was used as modifier. The research results showed that the S3 canimprove the operation benefit of photovoltaic power station because the S3 had the relatively optimal crosslinkingdegree(66%),light transmittance(89%),bonding properties(peeling strengths between S3 and glass,S3 and TPTfilm at 130,86 N/cm respectively)and wet-heat aging resistance(yellowing index change at 1.1% after aging 1 000 hat 85 ℃ and relative humidity 85%,and the decreasing amplitude of peeling strength betwee S3 and glass at 15%).The power damping(5.2%)of solar cell module encapsulated by S3 was obviously less than that by traditionalEVA(ethylene-vinyl acetate copolymer)film.
引文
[1]周玉波,张俊林,张发饶.超快固化高性能太阳能电池用EVA封装膜的研制[J].中国胶粘剂,2012,21(2):35-38.
[2]范云峰,高明珠,王艳秋.乙烯-辛烯共聚物(POE)界面粘接性改进[J].信息记录材料,2012,13(4):38-43.
[3]任毅,姚雪容,马蓓蓓,等.太阳能电池封装膜的应用现状及发展趋势[J].石油化工,2014,43(5):481-490.
[4]HACKE P,TERWILLIGER K,SMITH R,et al.Systemvoltage potential-induced degradation mechanisms in PVmodules and methods for test[C]//37th IEEE PhotovoltaicSpecialists Conference.Seattle:IEEE,2011:814-820.
[5]HOFFMANN S,KOEHL M.Effect of humidity and temperatureon the potential-induced degradation[J].Progress in Photo-voltaics:Research and Applications,2014,22(2):173-179.
[6]李民,朱坚武,曹晓东.光伏组件封装材料和PID的关系初探[C]//第八届中国太阳级硅及光伏发电研讨会.上海:中国可再生能源学会、上海市太阳能学会,2012.
[7]徐晓龙,范云峰.光伏用聚烯烃封装胶膜交联体系研究[J].信息记录材料,2013,14(5):11-16.
[8]GB/T 29848—2013,光伏组件封装用乙烯-醋酸乙烯酯(EVA)胶膜[S].
[9]莫海彬,雷彩红,徐睿杰,等.交联剂对乙烯-辛烯共聚物交联与结晶性能的影响[J].塑料,2015,44(4):50-52.
[2]范云峰,高明珠,王艳秋.乙烯-辛烯共聚物(POE)界面粘接性改进[J].信息记录材料,2012,13(4):38-43.
[3]任毅,姚雪容,马蓓蓓,等.太阳能电池封装膜的应用现状及发展趋势[J].石油化工,2014,43(5):481-490.
[4]HACKE P,TERWILLIGER K,SMITH R,et al.Systemvoltage potential-induced degradation mechanisms in PVmodules and methods for test[C]//37th IEEE PhotovoltaicSpecialists Conference.Seattle:IEEE,2011:814-820.
[5]HOFFMANN S,KOEHL M.Effect of humidity and temperatureon the potential-induced degradation[J].Progress in Photo-voltaics:Research and Applications,2014,22(2):173-179.
[6]李民,朱坚武,曹晓东.光伏组件封装材料和PID的关系初探[C]//第八届中国太阳级硅及光伏发电研讨会.上海:中国可再生能源学会、上海市太阳能学会,2012.
[7]徐晓龙,范云峰.光伏用聚烯烃封装胶膜交联体系研究[J].信息记录材料,2013,14(5):11-16.
[8]GB/T 29848—2013,光伏组件封装用乙烯-醋酸乙烯酯(EVA)胶膜[S].
[9]莫海彬,雷彩红,徐睿杰,等.交联剂对乙烯-辛烯共聚物交联与结晶性能的影响[J].塑料,2015,44(4):50-52.