CN107337848A - 太阳能电池板封装材料 - Google Patents
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Abstract
本发明提出一套太阳能电池板封装材料,包括封装膜与封装胶,其中封装膜有分为上层封装膜与下层封装膜,所述上层封装膜粘合在太阳能电池上表面,顶部与玻璃粘合,所述下层封装膜粘合在太阳能电池下表面,底部粘合在TPT背板上,所述封装胶填充在太阳能电池组件四周,用于将太阳能电池组件固定在铝合金边框;封装膜通过选用VA(醋酸乙烯)含量为30%的EVA作为主体材料,并添加改性添加剂使得封装膜具有高透光率、高折射指数和良好的耐高温性及抗紫外老化性能,封装胶通过选用有机硅胶,使的封装胶具有有优异的热稳定性、耐候性、耐高低温性、高透光性、低吸湿性和绝缘性,进而使太阳能电池组件达到更好的使用性能。
Description
技术领域
本发明涉及封装材料,特别涉及该封装材料在太阳能电池封装模块的应用。
背景技术
近年来,我国太阳能电池的生产量以非常惊人的数量增长,使相关封装材料和技术的研究与开发显得越来越重要。由于太阳能电池片不能直接暴露在阳光、雨水等自然条件下,因此,要实现太阳能发电的实际应用,就要对其进行保护性封装,并形成电池组件。特别是聚合物太阳能电池对于氧气、水极其敏感,要求封装材料良好的水氧阻隔性能;太阳能电池板封装材料按用途主要分为封装膜与封装胶,封装膜主要用于将保护基材(玻璃、TPT背板)与太阳能电池相互粘合在一起,封装胶主要用于将层压后的太阳能电池固定在在铝合金边框内。因此封装膜应具有优良的柔韧性、耐冲击性、弹性、光学透明性(透过率≥91%)、粘着性、耐腐蚀性、热密封性以及电绝缘性能,封装胶具有有优异的热稳定性、耐候性、耐高低温性、高透光性、低吸湿性和绝缘性。
发明内容
本发明在于提出一套太阳能电池板封装材料,旨在提高太阳能电池板所用封装材料的使用性能。
为了实现本发明,本发明通过以下技术方案实现:
本发明提出一套太阳能电池板封装材料,包括封装膜与封装胶,其中封装膜有分为上层封装膜与下层封装膜,所述上层封装膜粘合在太阳能电池上表面,顶部与玻璃粘合,所述下层封装膜粘合在太阳能电池下表面,底部粘合在TPT背板上,所述封装胶填充在太阳能电池组件四周,用于将太阳能电池组件固定在铝合金边框内。
优选的,所述上层封装膜按质量划分由以下物质构成:100份乙烯-醋酸乙烯共聚物、1-3份交联固化剂、0.3-0.5交联固化促进剂、0.02-1份抗氧化剂,2-5份增粘剂。
优选的,所述上层封装膜中乙烯-醋酸乙烯共聚物选用VA(醋酸乙烯))含量为30%的EVA(乙烯-醋酸乙烯共聚物),交联固化剂选用过氧化二异丙苯、交联固化剂选用三羟甲基丙烷三甲基丙烯酸酯,抗氧化剂选用2,6-二叔丁基苯酚,增粘剂选用203酚醛树脂。
优选的,所述下层封装膜按质量划分由以下物质构成:100份EVA、1-3份交联固化剂、0.3-0.5交联固化促进剂、0.02-1份抗氧化剂,0.01-0.5份增粘剂与0、01-1份紫外线吸收剂。
优选的,所述下层封装膜中乙烯-醋酸乙烯共聚物选用VA(醋酸乙烯))含量为30%的EVA,交联固化剂选用过氧化二异丙苯、交联固化剂选用三羟甲基丙烷三甲基丙烯酸酯,抗氧化剂选用2,6-二叔丁基苯酚,增粘剂选用203酚醛树脂,紫外线吸收剂选用2-羟基-4-正辛氧基二苯甲酮。
优选的,所述封装胶选用有机硅胶IVS4542、IVS4622、IVS5332、IVS5022中的一种。
本发明有益效果:封装膜通过选用VA(醋酸乙烯)含量为30%的EVA作为主体材料,并添加改性添加剂使得封装膜具有高透光率、高折射指数和良好的耐高温性及抗紫外老化性能,封装胶通过选用有机硅胶,使的封装胶具有有优异的热稳定性、耐候性、耐高低温性、高透光性、低吸湿性和绝缘性,进而使太阳能电池组件达到更好的使用性能。
具体实施方式
本发明提出一套太阳能电池板封装材料,包括封装膜与封装胶,其中封装膜有分为上层封装膜与下层封装膜,所述上层封装膜粘合在太阳能电池上表面,顶部与玻璃粘合,所述下层封装膜粘合在太阳能电池下表面,底部粘合在TPT背板上,所述封装胶填充在太阳能电池组件四周,用于将太阳能电池组件固定在铝合金边框内
实施例1
所述上层封装膜按质量划分由以下物质构成:100份VA(醋酸乙烯)含量为30%的EVA,1份过氧化二异丙苯、0.3份三羟甲基丙烷三甲基丙烯酸酯,0.02份2,6-二叔丁基苯酚,2份203酚醛树脂;所述下层封装膜按质量划分由以下物质构成:100份VA(醋酸乙烯)含量为30%的EVA,1份过氧化二异丙苯、0.3份三羟甲基丙烷三甲基丙烯酸酯,0.02份2,6-二叔丁基苯酚,2份203酚醛树脂,0.05份2-羟基-4-正辛氧基二苯甲酮,所述有机硅胶选用IVS4542。
实施例2
所述上层封装膜按质量划分由以下物质构成:100份VA(醋酸乙烯)含量为30%的EVA,2份过氧化二异丙苯、0.4份三羟甲基丙烷三甲基丙烯酸酯,0.06份2,6-二叔丁基苯酚,3份203酚醛树脂;所述下层封装膜按质量划分由以下物质构成:100份VA(醋酸乙烯)含量为30%EVA,2份过氧化二异丙苯、0.4份三羟甲基丙烷三甲基丙烯酸酯,0.06份2,6-二叔丁基苯酚,3份203酚醛树脂,0.08份2-羟基-4-正辛氧基二苯甲酮,所述有机硅胶选用IVS4622
实施例3
所述上层封装膜按质量划分由以下物质构成:100份VA(醋酸乙烯)含量为30%的EVA,3份过氧化二异丙苯、0.5份三羟甲基丙烷三甲基丙烯酸酯,1份2,6-二叔丁基苯酚,5份203酚醛树脂;所述下层封装膜按质量划分由以下物质构成:100份VA(醋酸乙烯)含量为30%的EVA,3份过氧化二异丙苯、0.5份三羟甲基丙烷三甲基丙烯酸酯,1份2,6-二叔丁基苯酚,5份203酚醛树脂,1份2-羟基-4-正辛氧基二苯甲酮,所述有机硅胶选用IVS5332
对比例1
对比例封装膜与封装胶所使用材料为现有技术下封装膜与封装胶所用常见材料,则所述上层封装膜为VA(醋酸乙烯)含量为30%的EVA膜,所述下层封装膜为VA(醋酸乙烯)含量为30%的EVA膜,所述封装胶选取环氧树脂胶。
对各实施例与对比例的太阳能电池封装膜做的部分性能测试,结果见表1与表2。其中粘结性能的测试方法按照国家标准GB/T2790-1995《胶粘剂180剥离强度实验方法绕性材料对刚性材料》。测试条件为:拉伸速度100mm/min。
耐湿热老化性能的测试方法按照国家标准GB/T2423.3-2006《电工电子产品环境试验第2部分:试验方法试验Cab:恒定湿热方法》的规定。测试条件为:温度为85℃,相对湿度85%RH,实验持续时间1000h。
透光率的测试方法按照国家标准GB2410-80《透明塑料透光率和雾度试验方法》。测试条件为:温度23±5℃,相对湿度50±20%RH。
体积电阻率按照GB/T1410-2006《固体绝缘材料体积电阻率和表面电阻率实验方法》。测试条件为:测试电压:DC1000V;电化时间:60S。
表1
表2
对各实施例与对比例的太阳能电池封装胶做的部分性能测试:
热稳定性的测试方法,将封装胶在玻璃板之间固化,测试温度180℃,结果见表3。
紫外线稳定性测试方法,将封装胶在玻璃板之间固化,测试条件;紫外灯强度:100mJ/cm2/min。结果见表4。
最后应说明的是:以上所述仅为本发明专利的优选实施例而已,并不用于限制本发明专利,尽管参照前述实施例对本发明专利进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换,凡在本发明专利的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明专利的保护范围之内。
Claims (6)
1.太阳能电池板封装材料,其特征在于:包括封装膜与封装胶,其中封装膜有分为上层封装膜与下层封装膜,所述上层封装膜粘合在太阳能电池上表面,顶部与玻璃粘合,所述下层封装膜粘合在太阳能电池下表面,底部粘合在TPT背板上,所述封装胶填充在太阳能电池组件四周,用于将太阳能电池组件固定在铝合金边框内。
2.根据权利要求1所述的太阳能电池板封装材料,其特征在于:所述上层封装膜按质量划分由以下物质构成:100份乙烯-醋酸乙烯共聚物、1-3份交联固化剂、0.3-0.5交联固化促进剂、0.02-1份抗氧化剂,2-5份增粘剂。
3.根据权利要求2所述的太阳能电池板封装材料,其特征在于:所述上层封装膜中乙烯-醋酸乙烯共聚物选用VA(醋酸乙烯))含量为30%的EVA(乙烯-醋酸乙烯共聚物),交联固化剂选用过氧化二异丙苯、交联固化剂选用三羟甲基丙烷三甲基丙烯酸酯,抗氧化剂选用2,6-二叔丁基苯酚,增粘剂选用203酚醛树脂。
4.根据权利要求1所述的太阳能电池板封装材料,其特征在于:所述下层封装膜按质量划分由以下物质构成:100份EVA、1-3份交联固化剂、0.3-0.5交联固化促进剂、0.02-1份抗氧化剂,0.01-0.5份增粘剂与0、01-1份紫外线吸收剂。
5.根据权利要求4所述的太阳能电池板封装材料,其特征在于:所述下层封装膜中乙烯-醋酸乙烯共聚物选用VA(醋酸乙烯))含量为30%的EVA,交联固化剂选用过氧化二异丙苯、交联固化剂选用三羟甲基丙烷三甲基丙烯酸酯,抗氧化剂选用2,6-二叔丁基苯酚,增粘剂选用203酚醛树脂,紫外线吸收剂选用2-羟基-4-正辛氧基二苯甲酮。
6.根据权利要求4所述的太阳能电池板封装材料,其特征在于:所述封装胶选用有机硅胶IVS4542、IVS4622、IVS5332、IVS5022中的一种。
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CN112225981A (zh) * | 2020-09-18 | 2021-01-15 | 苏州赛伍应用技术股份有限公司 | 一种焊带载体膜及其制备方法和应用 |
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