CN106206845B - 一种用于太阳能电池背板的氟膜及其制备方法 - Google Patents

一种用于太阳能电池背板的氟膜及其制备方法 Download PDF

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CN106206845B
CN106206845B CN201610609493.8A CN201610609493A CN106206845B CN 106206845 B CN106206845 B CN 106206845B CN 201610609493 A CN201610609493 A CN 201610609493A CN 106206845 B CN106206845 B CN 106206845B
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张思银
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Abstract

本发明公开了一种用于太阳能电池背板的氟膜及其制备方法。该氟膜包括以下原料：聚氟乙烯，聚偏氟乙烯，干冰，碳粉，桐油，聚乙烯醇缩甲醛，聚醚酰亚胺，秸秆粉，防腐剂，分散剂和流平剂。先称取原料；将聚氟乙烯、聚偏氟乙烯、聚醚酰亚胺、聚乙烯醇缩甲醛和桐油混合后用干冰破碎2‑8分钟，转移至反应器中，加入秸秆粉和碳粉，加热至400‑500℃得混合物一；向混合物一种加入防腐剂和分散剂和流平剂，搅拌均匀后超声3‑8分钟得混合物二；将混合物二投入吹膜机中吹膜得成品。本发明氟膜质地均匀，耐候性好，制备方法简单，适合产业化。

Description

一种用于太阳能电池背板的氟膜及其制备方法
技术领域
本发明涉及太阳能电池背板技术领域，具体涉及一种用于太阳能电池背板的氟膜及其制备方法。
背景技术
随着社会的发展，人们对能源的需求量日益增多，而化石能源又日益枯竭，迫切需要开发新兴能源。太阳能作为一种取之不尽用之不竭的能源越来越受到人们的关注。太阳能电池作为有用能源的实际应用取得了进展。太阳能电池包括各种类型，硅基太阳能电池、无机化合物基太阳能电池、有机太阳能电池等被是已知的典型太阳能电池。但由于太阳能组件长期暴露在室外，会受到环境的破坏，所以需要一层起保护作用的太阳能电池背板。所述背板具有各种优异的物理性能如耐侯性、耐水性、耐热性、水分阻隔性和气体阻隔性，以将所述太阳能电池的长期性能退化抑制到最小程度。
目前，背板材料中氟材料是常用的材料，但由于氟材料属于稀缺资源，氟树脂熔点较高，难以加工，所以人们需要一种性能上替代氟材料，价格上更优惠的新材料，满足人们生产生活的需要。
发明内容
针对现有技术的不足，本发明的目的在于提供一种用于太阳能电池背板的氟膜及其制备方法，该太阳能电池背板氟膜经久耐用，有效地保护了太阳能，且制备方法简单易行，成本低廉，适合产业化。
为解决现有技术问题，本发明采取的技术方案为：
一种用于太阳能电池背板的氟膜，包括以下按重量份数计的原料，聚氟乙烯20-35份，聚偏氟乙烯40-48份，干冰0.5-0.8份，碳粉10-15份，桐油3-8份，聚乙烯醇缩甲醛20-24份，聚醚酰亚胺14-24份，秸秆粉2-8份，防腐剂0.6-1.2份，分散剂0.1-0.8份，流平剂0.5-1.3份。
作为优选的是，上述用于太阳能电池背板的氟膜，包括以下按重量份数计的原料：聚氟乙烯20-35份，聚偏氟乙烯45份，干冰0.7份，碳粉15份，桐油3份，聚乙烯醇缩甲醛24份，聚醚酰亚胺18份，秸秆粉5份，防腐剂0.6份，分散剂0.5份，流平剂0.5份。
作为优选的是，所述碳粉的目数为600目。
上述用于太阳能电池背板的氟膜的制备方法，包括以下步骤：
步骤1，按需要称取原料；
步骤2，将聚氟乙烯、聚偏氟乙烯、聚醚酰亚胺、聚乙烯醇缩甲醛和桐油混合后用干冰破碎2-8分钟，转移至反应器中，加入秸秆粉和碳粉，加热至400-500℃得混合物一；
步骤3，向混合物一中加入防腐剂和分散剂和流平剂，搅拌均匀后超声3-8分钟得混合物二；
步骤4，将混合物二投入吹膜机中吹膜得成品。
作为制备方法优选的是，步骤3中超声用的波段是3000-4000Hz。
作为制备方法优选的是，步骤4中吹膜机的温度是480-540℃。
有益效果
本发明氟膜耐候性强，耐水性强，用在太阳能电池背板上，延长了太阳能电池的使用寿命，且制备方法简单易行，产出的氟膜质地均匀，适合产业化。
具体实施方式
实施例1
一种用于太阳能电池背板的氟膜，包括以下按重量份数计的原料，聚氟乙烯20份，聚偏氟乙烯40份，干冰0.5份，碳粉10份，桐油3份，聚乙烯醇缩甲醛20份，聚醚酰亚胺14份，秸秆粉2份，防腐剂0.6份，分散剂0.1份，流平剂0.5份。所述碳粉的目数为600目。
上述用于太阳能电池背板的氟膜的制备方法，包括以下步骤：
步骤1，按需要称取原料；
步骤2，将聚氟乙烯、聚偏氟乙烯、聚醚酰亚胺、聚乙烯醇缩甲醛和桐油混合后用干冰破碎2-8分钟，转移至反应器中，加入秸秆粉和碳粉，加热至400-500℃得混合物一；
步骤3，向混合物一中加入防腐剂和分散剂和流平剂，搅拌均匀后用波段是3000Hz超声8分钟得混合物二；
步骤4，将混合物二投入吹膜机中480℃下吹膜得成品。
实施例2
一种用于太阳能电池背板的氟膜，包括以下按重量份数计的原料，包括以下按重量份数计的原料：聚氟乙烯20-35份，聚偏氟乙烯45份，干冰0.7份，碳粉15份，桐油3份，聚乙烯醇缩甲醛24份，聚醚酰亚胺18份，秸秆粉5份，防腐剂0.6份，分散剂0.5份，流平剂0.5份。
所述碳粉的目数为600目。
上述用于太阳能电池背板的氟膜的制备方法，包括以下步骤：
步骤1，按需要称取原料；
步骤2，将聚氟乙烯、聚偏氟乙烯、聚醚酰亚胺、聚乙烯醇缩甲醛和桐油混合后用干冰破碎2-8分钟，转移至反应器中，加入秸秆粉和碳粉，加热至450℃得混合物一；
步骤3，向混合物一中加入防腐剂和分散剂和流平剂，搅拌均匀后用波段是3500Hz超声5分钟得混合物二；
步骤4，将混合物二投入吹膜机中500℃下吹膜得成品。
实施例3
一种用于太阳能电池背板的氟膜，包括以下按重量份数计的原料，聚氟乙烯35份，聚偏氟乙烯48份，干冰0.8份，碳粉15份，桐油3-8份，聚乙烯醇缩甲醛24份，聚醚酰亚胺24份，秸秆粉8份，防腐剂1.2份，分散剂0.8份，
流平剂1.3份。所述碳粉的目数为600目。
上述用于太阳能电池背板的氟膜的制备方法，包括以下步骤：
步骤1，按需要称取原料；
步骤2，将聚氟乙烯、聚偏氟乙烯、聚醚酰亚胺、聚乙烯醇缩甲醛和桐油混合后用干冰破碎2-8分钟，转移至反应器中，加入秸秆粉和碳粉，加热至500℃得混合物一；
步骤3，向混合物一中加入防腐剂和分散剂和流平剂，搅拌均匀后用波段是4000Hz超声3分钟得混合物二；
步骤4，将混合物二投入吹膜机中于540℃吹膜得成品。
对比例1
一种用于太阳能电池背板的氟膜，包括以下按重量份数计的原料，聚氟乙烯20-35份，聚偏氟乙烯40-48份，干冰0.5-0.8份，碳粉10-15份，桐油3-8份，聚乙烯醇缩甲醛20-24份，聚醚酰亚胺14-24份，秸秆粉2-8份，防腐剂0.6-1.2份，分散剂0.1-0.8份，流平剂0.5-1.3份。所述碳粉的目数为600目。
上述用于太阳能电池背板的氟膜的制备方法，包括以下步骤：
步骤1，按需要称取原料；
步骤2，将聚氟乙烯、聚偏氟乙烯、聚醚酰亚胺、聚乙烯醇缩甲醛和桐油混合转移至反应器中，加入秸秆粉和碳粉，加热至400-500℃得混合物一；
步骤3，向混合物一中加入防腐剂和分散剂和流平剂，搅拌均匀后超声3-8分钟得混合物二；
步骤4，将混合物二投入吹膜机中吹膜得成品。
上述实施例1-3所得的氟膜相对于对比例1而言，质地均匀，耐拉伸能力强，耐候性好，有效地保护了太阳能电池，具有良好的市场前景。

Claims (6)

1.一种用于太阳能电池背板的氟膜，其特征在于，包括以下按重量份数计的原料，聚氟乙烯20-35份，聚偏氟乙烯40-48份，干冰0.5-0.8份，碳粉10-15份，桐油3-8份，聚乙烯醇缩甲醛20-24份，聚醚酰亚胺14-24份，秸秆粉2-8份，防腐剂0.6-1.2份，分散剂0.1-0.8份，流平剂0.5-1.3份。
2.根据权利要求1所述的用于太阳能电池背板的氟膜，其特征在于，包括以下按重量份数计的原料：聚氟乙烯20-35份，聚偏氟乙烯45份，干冰0.7份，碳粉15份，桐油3份，聚乙烯醇缩甲醛24份，聚醚酰亚胺18份，秸秆粉5份，防腐剂0.6份，分散剂0.5份，流平剂0.5份。
3.根据权利要求1所述的用于太阳能电池背板的氟膜，其特征在于，所述碳粉的目数为600目。
4.基于权利要求1所述的用于太阳能电池背板的氟膜的制备方法，其特征在于，包括以下步骤：
步骤1，按需要称取原料；
步骤2，将聚氟乙烯、聚偏氟乙烯、聚醚酰亚胺、聚乙烯醇缩甲醛和桐油混合后用干冰破碎2-8分钟，转移至反应器中，加入秸秆粉和碳粉，加热至400-500℃得混合物一；
步骤3，向混合物一中加入防腐剂和分散剂和流平剂，搅拌均匀后超声3-8分钟得混合物二；
步骤4，将混合物二投入吹膜机中吹膜得成品。
5.根据权利要求4所述的用于太阳能电池背板的氟膜的制备方法，其特征在于：步骤3中超声用的波段是3000-4000Hz。
6.根据权利要求4所述的用于太阳能电池背板的氟膜的制备方法，其特征在于：步骤4中吹膜机的温度是480-540℃。
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