CN104409542A - 一种太阳能电池背板用含氟耐候膜及其制备方法 - Google Patents
一种太阳能电池背板用含氟耐候膜及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种太阳能电池背板用含氟耐候膜及其制备方法,该耐候膜包括以下原料:氟碳树脂12-25份,二氧化钛3-8份,聚偏二氟乙烯4-12份,氧化铝5-12份,聚对苯二甲酸乙二醇酯40-55份,甘油1-5份,植物油4-8份,油酸酰胺2-4份。制备方法:按照重量份数称取原料;将氟碳树脂,二氧化钛,聚偏二氟乙烯,氧化铝,聚对苯二甲酸乙二醇酯,油酸酰胺混合后放入球磨机中磨碎,过筛得混合物Ⅰ;向混合物Ⅰ中加入甘油和植物油,搅拌20-28分钟,得混合物Ⅱ;将混合物Ⅱ放入双螺杆挤出机挤出母粒;步骤5,将母粒放入吹膜机中,进行挤出吹膜得耐候膜。本发明耐候膜抗拉伸,不易断裂,高温下收缩率低。
Description
技术领域
本发明涉及太阳能电池领域,具体涉及一种太阳能电池背板用含氟耐候膜及其制备方法。
背景技术
太阳能电池是将太阳能直接转化成电能的装置,是解决生态、环境污染与能源短缺的有效途径之一。太阳能电池是由玻璃、热熔胶膜、电池硅片和背板组成,其中背板位于太阳能电池背面最外层,作用是保证太阳能电池在密闭的条件下运行,减少环境影响的作用,延长太阳能电池的使用寿命,是太阳能电池非常重要的组成部分。
电池背板位于组件背面最外面,在户外环境下保护太阳能电池组不受水汽的侵蚀、阻隔氧气防止氧化,要求耐高温耐低温、绝缘性好、耐老化、耐腐蚀。
目前太阳能电池背板材料主要分为含氟树脂和非含氟树脂两大类,其中含氟类的成本高,并且高温下易收缩,需要研发一种不易收缩的材料。
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太阳能电池背板用含氟耐候膜及其制备方法,延长电池背板的使用寿命,降低了成本。
为解决现有技术问题,本发明所采取的技术方案为:
一种太阳能电池背板用含氟耐候膜,包括以下按重量份数计的原料:氟碳树脂12-25份,二氧化钛3-8份,聚偏二氟乙烯4-12份,氧化铝5-12份,聚对苯二甲酸乙二醇酯40-55份,甘油1-5份,植物油4-8份,油酸酰胺2-4份。
作为太阳能电池背板用含氟耐候膜的优选,包括以下按重量份数计的原料:氟碳树脂12-25份,二氧化钛3-8份,聚偏二氟乙烯4-12份,氧化铝5-12份,聚对苯二甲酸乙二醇酯40-55份,甘油1-5份,植物油4-8份,油酸酰胺2-4份。
上述太阳能电池背板用含氟耐候膜的制备方法,包括以下步骤:
步骤1,按照重量份数称取原料;
步骤2,将氟碳树脂,二氧化钛,聚偏二氟乙烯,氧化铝,聚对苯二甲酸乙二醇酯,油酸酰胺混合后放入球磨机中磨碎,过筛得混合物Ⅰ;
步骤3,向混合物Ⅰ中加入甘油和植物油,搅拌20-28分钟,得混合物Ⅱ;
步骤4,将混合物Ⅱ放入双螺杆挤出机挤出母粒;
步骤5,将母粒放入吹膜机中,进行挤出吹膜得耐候膜。
作为上述太阳能电池背板用含氟耐候膜的制备方法的优选,步骤2,混合物Ⅰ的目数为400-800目。
作为上述太阳能电池背板用含氟耐候膜的制备方法的优选,步骤3,搅拌速度为500-800rpm。
作为上述太阳能电池背板用含氟耐候膜的制备方法的优选,步骤4,挤出机加工温度为200-240℃,螺杆转速为280-350rpm。
作为上述太阳能电池背板用含氟耐候膜的制备方法的优选,步骤5,吹膜机机头温度为200-260℃,耐候膜的厚度为5-8μm。
有益效果
本发明耐候膜原料低廉,细腻,抗拉伸,不易断裂,并且在高温下,收缩率低,非常适合作为太阳能背板的材料。
具体实施方式
实施例1
一种太阳能电池背板用含氟耐候膜,包括以下按重量份数计的原料:氟碳树脂12份,二氧化钛3-份,聚偏二氟乙烯4份,氧化铝5份,聚对苯二甲酸乙二醇酯40份,甘油1份,植物油4份,油酸酰胺2份。
上述太阳能电池背板用含氟耐候膜的制备方法,包括以下步骤:
步骤1,按照重量份数称取原料;
步骤2,将氟碳树脂,二氧化钛,聚偏二氟乙烯,氧化铝,聚对苯二甲酸乙二醇酯,油酸酰胺混合后放入球磨机中磨碎,过400目筛得混合物Ⅰ;
步骤3,向混合物Ⅰ中加入甘油和植物油,以500rpm搅拌20分钟,得混合物Ⅱ;
步骤4,将混合物Ⅱ放入双螺杆挤出机挤出母粒,其中挤出机加工温度为200℃,螺杆转速为280rpm;
步骤5,将母粒放入吹膜机中,机头温度为200℃进行挤出吹膜得5μm耐候膜。
实施例2
一种太阳能电池背板用含氟耐候膜,包括以下按重量份数计的原料:氟碳树脂12份,二氧化钛3份,聚偏二氟乙烯4份,氧化铝5份,聚对苯二甲酸乙二醇酯40份,甘油1-5份,植物油4份,油酸酰胺2份。
上述太阳能电池背板用含氟耐候膜的制备方法,包括以下步骤:
步骤1,按照重量份数称取原料;
步骤2,将氟碳树脂,二氧化钛,聚偏二氟乙烯,氧化铝,聚对苯二甲酸乙二醇酯,油酸酰胺混合后放入球磨机中磨碎,过600目筛得混合物Ⅰ;
步骤3,向混合物Ⅰ中加入甘油和植物油,以580rpm搅拌24分钟,得混合物Ⅱ;
步骤4,将混合物Ⅱ放入双螺杆挤出机挤出母粒,其中加工温度为210℃,螺杆转速为300rpm;
步骤5,将母粒放入吹膜机中,机头温度为220℃进行挤出吹膜得6μm耐候膜。
实施例3
一种太阳能电池背板用含氟耐候膜,包括以下按重量份数计的原料:氟碳树脂25份,二氧化钛8份,聚偏二氟乙烯12份,氧化铝12份,聚对苯二甲酸乙二醇酯55份,甘油5份,植物油8份,油酸酰胺3份。
上述太阳能电池背板用含氟耐候膜的制备方法,包括以下步骤:
步骤1,按照重量份数称取原料;
步骤2,将氟碳树脂,二氧化钛,聚偏二氟乙烯,氧化铝,聚对苯二甲酸乙二醇酯,油酸酰胺混合后放入球磨机中磨碎,过680目筛得混合物Ⅰ;
步骤3,向混合物Ⅰ中加入甘油和植物油,以600rpm搅拌26分钟,得混合物Ⅱ;
步骤4,将混合物Ⅱ放入双螺杆挤出机挤出母粒,其中加工温度为230℃,螺杆转速为300rpm;
步骤5,将母粒放入吹膜机中,机头温度为240℃进行挤出吹膜得7μm耐候膜。
实施例4
一种太阳能电池背板用含氟耐候膜,包括以下按重量份数计的原料:氟碳树脂25份,聚偏二氟乙烯12份,氧化铝12份,聚对苯二甲酸乙二醇酯55份,甘油5份,植物油8份,油酸酰胺4份。
上述太阳能电池背板用含氟耐候膜的制备方法,包括以下步骤:
步骤1,按照重量份数称取原料;
步骤2,将氟碳树脂,聚偏二氟乙烯,氧化铝,聚对苯二甲酸乙二醇酯,油酸酰胺混合后放入球磨机中磨碎,过800目筛得混合物Ⅰ;
步骤3,向混合物Ⅰ中加入甘油和植物油,以800rpm搅拌28分钟,得混合物Ⅱ;
步骤4,将混合物Ⅱ放入双螺杆挤出机挤出母粒,加工温度为240℃,螺杆转速为350rpm;
步骤5,将母粒放入吹膜机中,机头温度为260℃进行挤出吹膜得8μm耐候膜。
对比例1
一种太阳能电池背板用含氟耐候膜,包括以下按重量份数计的原料:氟碳树脂12份,二氧化钛3-份,聚偏二氟乙烯4份,聚对苯二甲酸乙二醇酯40份,甘油1份,植物油4份,油酸酰胺2份。
上述太阳能电池背板用含氟耐候膜的制备方法,包括以下步骤:
步骤1,按照重量份数称取原料;
步骤2,将氟碳树脂,二氧化钛,聚偏二氟乙烯,聚对苯二甲酸乙二醇酯,油酸酰胺混合后放入球磨机中磨碎,过400目筛得混合物Ⅰ;
步骤3,向混合物Ⅰ中加入甘油和植物油,以500rpm搅拌20分钟,得混合物Ⅱ;
步骤4,将混合物Ⅱ放入双螺杆挤出机挤出母粒,其中,挤出机加工温度为200℃,螺杆转速为280rpm;
步骤5,将母粒放入吹膜机中,机头温度为200℃进行挤出吹膜得5μm耐候膜。
对比例2
一种太阳能电池背板用含氟耐候膜,包括以下按重量份数计的原料:氟碳树脂12份,二氧化钛3-份,聚偏二氟乙烯4份,氧化铝5份,聚对苯二甲酸乙二醇酯40份,甘油1份,植物油4份,油酸酰胺2份。
上述太阳能电池背板用含氟耐候膜的制备方法,包括以下步骤:
步骤1,按照重量份数称取原料;
步骤2,将氟碳树脂,二氧化钛,聚偏二氟乙烯,氧化铝,聚对苯二甲酸乙二醇酯,油酸酰胺混合后放入球磨机中磨碎,过400目筛得混合物Ⅰ;
步骤3,向混合物Ⅰ中加入甘油和植物油,以500rpm搅拌20分钟,得混合物Ⅱ;
步骤4,将混合物Ⅱ放入双螺杆挤出机挤出母粒,其中挤出机加工温度为200℃,螺杆转速为280rpm;
步骤5,将母粒放入吹膜机中,机头温度为200℃进行挤出吹膜得5μm耐候膜。
性能试验
对本发明和对比例1-2耐候膜性能进行对比,所得数据如下表所示。
从上表数据可以看出,本发明耐候膜拉伸强度好,抗拉伸,并且在高温下,收缩率低,适合应用。
Claims (7)
1.一种太阳能电池背板用含氟耐候膜,其特征在于,包括以下按重量份数计的原料:氟碳树脂12-25份,二氧化钛3-8份,聚偏二氟乙烯4-12份,氧化铝5-12份,聚对苯二甲酸乙二醇酯40-55份,甘油1-5份,植物油4-8份,油酸酰胺2-4份。
2.根据权利要求1所述的太阳能电池背板用含氟耐候膜,其特征在于:包括以下按重量份数计的原料:氟碳树脂12-25份,二氧化钛3-8份,聚偏二氟乙烯4-12份,氧化铝5-12份,聚对苯二甲酸乙二醇酯40-55份,甘油1-5份,植物油4-8份,油酸酰胺2-4份。
3.权利要求1所述的太阳能电池背板用含氟耐候膜的制备方法,其特征在于,包括以下步骤:
步骤1,按照重量份数称取原料;
步骤2,将氟碳树脂,二氧化钛,聚偏二氟乙烯,氧化铝,聚对苯二甲酸乙二醇酯,油酸酰胺混合后放入球磨机中磨碎,过筛得混合物Ⅰ;
步骤3,向混合物Ⅰ中加入甘油和植物油,搅拌20-28分钟,得混合物Ⅱ;
步骤4,将混合物Ⅱ放入双螺杆挤出机挤出母粒;
步骤5,将母粒放入吹膜机中,进行挤出吹膜得耐候膜。
4.根据权利要求3所述的太阳能电池背板用含氟耐候膜的制备方法,其特征在于:步骤2,混合物Ⅰ的目数为400-800目。
5.根据权利要求3所述的太阳能电池背板用含氟耐候膜的制备方法,其特征在于:步骤3,搅拌速度为500-800rpm。
6.根据权利要求3所述的太阳能电池背板用含氟耐候膜的制备方法,其特征在于:步骤4,挤出机加工温度为200-240℃,螺杆转速为280-350rpm。
7.根据权利要求3所述的太阳能电池背板用含氟耐候膜的制备方法,其特征在于:步骤5,吹膜机机头温度为200-260℃,耐候膜的厚度为5-8μm。
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