CN106328760A - 一种低成本太阳能电池背板的生产工艺 - Google Patents
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Abstract
本发明涉及一种低成本太阳能电池背板的生产工艺,利用本生产工艺制造的太阳能电池背板包括PET基材、聚酯耐候保护层及涂覆层,本发明的太阳能电池背板经2000小时紫外线照射条件下和75℃温度75%湿度的老化后,背板表面颜色无明显变化,背板的物理性能与老化前基本无变化,本发明通过采用聚酯耐候保护层使加工更容易、成本更低。
Description
技术领域
本发明涉及太阳能组件领域,尤其涉及一种低成本太阳能电池背板的生产工艺。
背景技术
太阳能作为一种绿色环保、取之不尽的能源,无疑是取代传统火力发电的最佳选择,由于太阳能电池需要长期暴露在室外实用,所以光伏组件中的电池片需要加以保护,来防止大气中的水汽、氧气、紫外线等环境因素的影响和俯视。太阳能背板是整个太阳能电池的配件之一,主要起力学支撑和保护电池片免受环境因素渗透的作用,目前常规的太阳能背板集中采用氟塑料作为耐候层,氟塑料由于含氟,因此具有较好的耐候性,但由于氟塑料加工非常困难且具有较高的技术门槛,所以供应商少,其应供量少和价格高限制太阳能背板的推广普及。
发明内容
本申请人针对上述现有问题,进行了研究改进,提供一种低成本太阳能电池背板的生产工艺,其具有制造加工简便、成本低的优点。
本发明所采用的技术方案如下:
一种低成本太阳能电池背板的生产工艺,包括以下步骤:
第一步:由放卷机进行PET基材供卷;
第二步:将配比好的粘合剂通过双辊滚涂机均匀的涂覆于PET基材的一侧表面;
第三步:将第二步中带涂覆粘合剂的PET基板输送至烘房中进行烘干固化,烘干温度为70~180℃,烘干时间为5~10分钟;
第四步:在带有粘合剂的PET基材料表面复合一层聚酯耐候保护涂层;所述聚酯耐候保护涂层由氧化钛及氧化锌混合制成;
第五步:将第四步中复合聚酯耐候保护涂层的PET基材卷于纸芯上形成半成品进行晾置,晾置时间为2~7天;
第六步:利用配比好的粘合剂通过双辊滚涂机均匀的涂覆于第五步所得PET基材的另一侧表面;
第七步:将第六步中带涂覆粘合剂的PET基板输送至烘房中进行烘干固化,烘干温度为110~195℃,烘干时间为8~15分钟;
第八步:在带有粘合剂的PET基材料表面复合一层涂覆层;所述涂覆层为三氟氯乙烯或聚偏氟乙烯的微小颗粒与基础树脂混合形成的涂覆材料;
第九步:将第八步所得PET基材卷于纸芯上形成成品背板进行晾置,晾置时间为3~6天;
第十步:将第九步所得背板根据客户需求进行切边、分卷;
第十一步:对第十步所得背板进行抽样检测,检测背板的性能及质量等级。
本发明的有益效果如下:
本发明的太阳能电池背板经2000小时紫外线照射条件下和75℃温度75%湿度的老化后,背板表面颜色无明显变化,背板的物理性能与老化前基本无变化,本发明通过采用聚酯耐候保护层使加工更容易、成本更低。
具体实施方式
下面说明本发明的具体实施方式。
一种低成本太阳能电池背板的生产工艺包括以下步骤:
第一步:由放卷机进行PET基材供卷;
第二步:将配比好的粘合剂通过双辊滚涂机均匀的涂覆于PET基材的一侧表面;
第三步:将第二步中带涂覆粘合剂的PET基板输送至烘房中进行烘干固化,烘干温度为70~180℃,烘干时间为5~10分钟;
第四步:在带有粘合剂的PET基材料表面复合一层聚酯耐候保护涂层;聚酯耐候保护涂层由氧化钛及氧化锌混合制成;
第五步:将第四步中复合聚酯耐候保护涂层的PET基材卷于纸芯上形成半成品进行晾置,晾置时间为2~7天;
第六步:利用配比好的粘合剂通过双辊滚涂机均匀的涂覆于第五步所得PET基材的另一侧表面;
第七步:将第六步中带涂覆粘合剂的PET基板输送至烘房中进行烘干固化,烘干温度为110~195℃,烘干时间为8~15分钟;
第八步:在带有粘合剂的PET基材料表面复合一层涂覆层;涂覆层为三氟氯乙烯或聚偏氟乙烯的微小颗粒与基础树脂混合形成的涂覆材料;
第九步:将第八步所得PET基材卷于纸芯上形成成品背板进行晾置,晾置时间为3~6天;
第十步:将第九步所得背板根据客户需求进行切边、分卷;
第十一步:对第十步所得背板进行抽样检测,检测背板的性能及质量等级。
本发明的太阳能电池背板经2000小时紫外线照射条件下和75℃温度75%湿度的老化后,背板表面颜色无明显变化,背板的物理性能与老化前基本无变化,本发明通过采用聚酯耐候保护层使加工更容易、成本更低。
以上描述是对本发明的解释,不是对发明的限定,本发明所限定的范围参见权利要求,在不违背本发明的基本结构的情况下,本发明可以作任何形式的修改。
Claims (1)
1.一种低成本太阳能电池背板的生产工艺,其特征在于包括以下步骤:
第一步:由放卷机进行PET基材供卷;
第二步:将配比好的粘合剂通过双辊滚涂机均匀的涂覆于PET基材的一侧表面;
第三步:将第二步中带涂覆粘合剂的PET基板输送至烘房中进行烘干固化,烘干温度为70~180℃,烘干时间为5~10分钟;
第四步:在带有粘合剂的PET基材料表面复合一层聚酯耐候保护涂层;所述聚酯耐候保护涂层由氧化钛及氧化锌混合制成;
第五步:将第四步中复合聚酯耐候保护涂层的PET基材卷于纸芯上形成半成品进行晾置,晾置时间为2~7天;
第六步:利用配比好的粘合剂通过双辊滚涂机均匀的涂覆于第五步所得PET基材的另一侧表面;
第七步:将第六步中带涂覆粘合剂的PET基板输送至烘房中进行烘干固化,烘干温度为110~195℃,烘干时间为8~15分钟;
第八步:在带有粘合剂的PET基材料表面复合一层涂覆层;所述涂覆层为三氟氯乙烯或聚偏氟乙烯的微小颗粒与基础树脂混合形成的涂覆材料;
第九步:将第八步所得PET基材卷于纸芯上形成成品背板进行晾置,晾置时间为3~6天;
第十步:将第九步所得背板根据客户需求进行切边、分卷;
第十一步:对第十步所得背板进行抽样检测,检测背板的性能及质量等级。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102110728A (zh) * | 2010-08-11 | 2011-06-29 | 宁波长阳科技有限公司 | 太阳能电池背膜及其制备方法 |
CN103068895A (zh) * | 2010-08-12 | 2013-04-24 | 马迪可公司 | 用于光伏模块的背板 |
CN103928551A (zh) * | 2013-01-10 | 2014-07-16 | 中天光伏材料有限公司 | 一种异质双面含氟型太阳电池背板 |
CN104335360A (zh) * | 2012-05-16 | 2015-02-04 | 圣戈班性能塑料谢纳有限公司 | 光伏背板 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN102110728A (zh) * | 2010-08-11 | 2011-06-29 | 宁波长阳科技有限公司 | 太阳能电池背膜及其制备方法 |
CN103068895A (zh) * | 2010-08-12 | 2013-04-24 | 马迪可公司 | 用于光伏模块的背板 |
CN104335360A (zh) * | 2012-05-16 | 2015-02-04 | 圣戈班性能塑料谢纳有限公司 | 光伏背板 |
CN103928551A (zh) * | 2013-01-10 | 2014-07-16 | 中天光伏材料有限公司 | 一种异质双面含氟型太阳电池背板 |
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