固化特性对光伏组件用封装胶膜的影响
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摘要
研究过氧化二异丙苯(DCP)、复配交联剂(T-50)两种固化剂与太阳能光伏发电组件用乙烯-醋酸乙烯共聚物(EVA)封装胶膜各项性能的关系。结果表明,工艺条件选取固化温度为120℃,固化时间为16 min,固化压力为5 MPa时,以T-50交联的EVA胶膜的初始流变性无变化;固化后,当T-50加入量为1. 6%时,EVA胶膜交联度增至96. 94%,拉伸强度增至14. 56 MPa,断裂伸长率降至466%。热重分析显示以T-50为交联剂时EVA胶膜的热稳定性略有提高。T-50可替代DCP作为EVA胶膜的固化剂使用,且可降低光伏发电组件的组装温度。
The relationship between the properties of the EVA encapsulated film for solar photovoltaic modules and two curing agents of dicumyl peroxide( DCP) and T-50 was studied. The results show that there is no change in initial rheology of EVA film cross-linked with T-50 when the curing temperature is 120 ℃,the curing time is 16 min and the curing pressure is 5 MPa as process conditions. When the T-50 addition is1. 6%,the degree of cross linking of EVA film increases to 96. 94%,the tensile strength increased to 14. 56 MPa,the elongation at break decreases to 466% after curing. Thermogravimetric analysis show that the heat endurance of EVA film increases slightly when T-50 is used as cross-linking agent. T-50 can replace DCP as a curing agent of EVA film and reduce the assembly temperature of photovoltaic modules.
The relationship between the properties of the EVA encapsulated film for solar photovoltaic modules and two curing agents of dicumyl peroxide( DCP) and T-50 was studied. The results show that there is no change in initial rheology of EVA film cross-linked with T-50 when the curing temperature is 120 ℃,the curing time is 16 min and the curing pressure is 5 MPa as process conditions. When the T-50 addition is1. 6%,the degree of cross linking of EVA film increases to 96. 94%,the tensile strength increased to 14. 56 MPa,the elongation at break decreases to 466% after curing. Thermogravimetric analysis show that the heat endurance of EVA film increases slightly when T-50 is used as cross-linking agent. T-50 can replace DCP as a curing agent of EVA film and reduce the assembly temperature of photovoltaic modules.
引文
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[12]洪利杰,程斌君,张祥洲,等.太阳能电池组件用POE封装胶膜的研制[J].中国胶粘剂,2017,26(5):30-33.
[2]柳青,范云峰,王莉.太阳能EVA胶膜与玻璃界面粘接力的研究[J].中国胶粘剂,2014,23(3):5-9.
[3] MAENGJUN K,LEE S,SANGHO S. Theoretical study of morphologically modified EVA film to minimize metal grid reflection loss[J]. Mol Crystals Liq Crystals, 2013, 585(1):62-67.
[4]唐培,邓清田.三聚氰胺-磷酸-氢氧化铝复合盐与氢氧化镁复配物对EVA的阻燃效果及力学性能影响研究[J].塑料工业,2017,45(10):125-128,95.
[5]罗丹,颜渊巍,杨军.膨胀阻燃EVA的阻燃性能及机理研究[J].塑料工业,2016,44(5):75-79.
[6]麻玉龙,尹晓刚,付海,等. EVA发泡材料吸声性能的研究[J].塑料工业,2016,44(7):122-126.
[7]柳青,高延子,范云峰,等.太阳能电池封装用EVA/CH-SCLCP复合薄膜的制备与性能[J].中国胶粘剂,2013,22(11):25-29,44.
[8]周先国,韩继昌,康裾昆,等. EVA封装胶膜研究进展与发展趋势[J].太阳能,2012(9):16-20.
[9]龚皓,朱晓岗.测试方法对光伏用EVA胶膜交联度的影响[J].太阳能,2012(23):24-25.
[10]李海波,戚嵘嵘,冯杰,等.太阳能电池用EVA封装胶膜的性能研究[J].中国胶粘剂,2016,25(4):22-25.
[11] YUWAWECH K,WOOTTHIKANOKKHAN J. Supachok tanpichai enhancement of thermal,mechanical and barrierproperties of EVA solar cell encapsulating films by reinforcing with esterified cellulose nanofibres[J]. Polym Test,2015,48:12-22.
[12]洪利杰,程斌君,张祥洲,等.太阳能电池组件用POE封装胶膜的研制[J].中国胶粘剂,2017,26(5):30-33.