太阳能电池背板用PE膜的结构设计与耐老化性能  

Structure Design and Ageing-resistance Properties of PE Film for Solar Battery Back-sheet

作　　者：郭俊杰 张宏元[2,3] 姜磊 龚露露[2,3] 刘明珠 杨柱[2,3] Guo Junjie;Zhang Hongyuan;Jiang Lei;Gong Lulu;Liu Mingzhu;Yang Zhu(School of Physics and Electronic Engineering,Hubei University of Arts and Science,Xiangyang 441021,China;Hubei Institute of Aerospace Chemical Technology,Xiangyang 441003,China;Hubei Province Key Laboratory of Low Dimensional Photoelectric Material and Devices,Xiangyang 441021,China)

机构地区：[1]湖北文理学院物理与电子工程学院,湖北襄阳441021 [2]湖北航天化学技术研究所,湖北襄阳441003 [3]低维光电材料与器件湖北省重点实验室,湖北襄阳441021

出　　处：《工程塑料应用》2019年第11期54-58,共5页Engineering Plastics Application

摘　　要：利用白色母粒和抗老化母粒作为改性母粒,对太阳能电池背板用聚乙烯(PE)膜进行三层结构设计,研究了PE膜结构设计对其力学性能的影响,PE膜内层组分中不同含量的抗老化母粒对PE膜与聚对苯二甲酸乙二酯(PET)膜复合粘接强度的影响,PE膜外层组分中不同含量的抗老化母粒对PE膜与乙烯乙酸乙烯酯塑料(EVAC)胶膜复合粘接强度的影响,PE膜中层组分含量设计对其耐老化性能的影响。结果表明,设计PE膜总厚度为60μm,以正态分布的三层结构可以提高PE膜的力学性能。当PE膜内层厚度为18μm、内层组分中抗老化母粒含量为6%时,PE膜与PET膜复合粘接强度为7.2 N/(10 mm)。当PE膜外层厚度为18μm外层组分中抗老化母粒含量为3%时,PE膜与EVAC胶膜复合粘接强度为70 N/(10 mm)。当PE膜内层、中层、外层厚度分别为18,24,18μm、中层组分中抗老化母粒含量为6%时,PE膜耐紫外辐照能量可以达到105(kW h)/m^2,耐高温高湿老化时间达到2 800 h。White master batch and ageing-resistance functional master batch were used as modification master batch,the three-layer structure design of polyethylene(PE)film used for solar battery back-sheet was carried out.The effects of PE film structure design on its mechanical properties were studied,the effects of different contents of ageing-resistance master batch in PE film inner layer on composite bonding strength of PE film and polyethylene terephthalate(PET)film,the effects of different contents of ageing-resistance master batch in PE film outer layer on the thermo compression composite bonding strength of PE film and ethylene-vinyl acetate plastic(EVAC)film,the effects of medium component content design on ageing-sesistance of PE film.The results show that the designed total thickness of PE film is 60μm,and the three-layer structure with Gaussian distribution can improve the me-chanical properties of PE film.When the inner layer thickness of PE film is 18μm and the ageing-resistance master batch content in the inner layer is 6%,the composite bonding strength between PE film and PET film is 7.2 N/(10 mm).When the outer layer thickness of the PE film is 18μm and the ageing-resistance master batch content in the outer layer is 3%,the thermo compression composite bonding strength between PE film and EVAC film is 70 N/(10 mm).When the thickness of inner layer,middle layer and outer layer of PE film is 18,24,18μm and the content of ageing-resistance master batch in middle layer is 6%,the ultraviolet radiation energy of PE film can reach 105(kW h)/m^2,and the ageing time at high temperature and humidity can reach 2 800 h.

关 键 词：聚乙烯薄膜 耐老化性能 抗老化母粒 太阳能电池背板 结构设计 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]