CN110126408B - 一种透明背板的硬化方法 - Google Patents
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Abstract
本发明涉及一种透明背板的硬化方法,在80~120℃下对透明背板的氟膜面进行压制。本发明通过对透明背板的氟膜面进行高温压制处理,从而起到提高氟膜面硬度和耐磨性的作用,与此同时兼顾了透明背板的透明度及其他性能,本发的制备方法简单,易于大规模生产。
Description
技术领域
本发明涉及一种透明背板的硬化方法。
背景技术
光伏背板位于电池的背面,对电池片起保护和支撑作用,因此必须要具有良好的绝缘性、阻水性和耐老化性。作为光伏的一个重要组成部分,近两年,双面发电组件发展迅猛。
目前,市面上已经开始出现可用于双面发电的双玻组件。双玻组件虽可以进行双面发电,但同时也存在一些弊端,例如组件整体重量过重,运输中组件损毁率高和安装难度大等问题,因此透明背板进入了人们的视野。但透明背板为高分子材料,故其本身的耐磨损性要劣于玻璃基材,故传统的透明背板在长时间户外使用后,会出现刮伤和磨损,因而会降低透明背板本身的透明度,从而引起组件功率的降低。为了保证组件的正常工作功率,如何提高透明背板的耐磨性便显得尤为重要。而在现有背板的基础上,如果能够直接进行改进,不增加额外的材料,便进一步降低出现的问题风险,如何能达到这个效果,是十分值得进行探究的方向。
发明内容
本发明所要解决的技术问题是提供一种兼顾透明度、硬度和耐磨性的透明背板的硬化方法。
为解决以上技术问题,本发明采取如下技术方案:
本发明的一个目的是提供一种透明背板的硬化方法,在80~120℃下对透明背板的氟膜面进行压制。
本发明中,若压制的温度过低,则无法起到改善透明背板的硬度和耐磨性的作用,若压制的温度过高,则会引起氟膜面的软化,从而影响透明背板的性能。
优选地,所述的氟膜面的材质为透明聚偏氟乙烯膜。
优选地,控制所述的压制的压力为0.5~1.5atm,若压制的压力过低,则无法起到改善透明背板的硬度和耐磨性的作用,若压制的压力过高,则会导致透明背板的断裂。
进一步优选地,控制所述的压制的压力为0.8~1.2atm。
更为优选地,控制所述的压制的压力为0.9~1.1atm。
优选地,采用滚动的方式进行所述的压制。
优选地,所述的透明背板为KPf型透明背板或KPK型透明背板,其中,K膜为上述的氟膜,P膜为透明PET薄膜,f涂层为含氟树脂透明涂层。该KPf型透明背板或KPK型透明背板可以市购获得。
本发明中,可以采用常规的加压机器进行压制,例如辊压机、轧花机等。
本发明的另一个目的是提供一种所述的硬化方法制得的透明背板。
由于以上技术方案的实施,本发明与现有技术相比具有如下优点:
本发明通过对透明背板的氟膜面进行高温压制处理,从而起到提高氟膜面硬度和耐磨性的作用,与此同时兼顾了透明背板的透明度及其他性能,本发的制备方法简单,易于大规模生产。
具体实施方式
下面结合具体实施例对本发明做进一步详细的说明,但本发明并不限于以下实施例。实施例中采用的实施条件可以根据具体使用的不同要求做进一步调整,未注明的实施条件为本行业中的常规条件。本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
实施例1:
选用KPK型透明背板,在80℃、1atm条件下,对K膜面进行滚动加压30s。
实施例2:
选用KPK型透明背板,在120℃、1atm条件下,对K膜面进行滚动加压20s。
实施例3:
选用KPf型透明背板,在100℃、1atm条件下,对K膜面进行滚动加压25s。
实施例4:
选用KPf型透明背板,在80℃、1atm条件下,对K膜面进行滚动加压28s。
对比例1:KPf型透明背板。
对比例2:KPK型透明背板。
将实施例1至4、对比例1和2的透明背板进行如下测试,测试结果见表1。透光率使用721紫外分光光度计进行测量,测量波段400~1000nm。耐摩擦次数使用耐摩擦实验机339进行测试,#0000钢丝棉,每分钟往复60次。硬度使用铅笔硬度测试设备进行测试。机械性能通过MD和TD方向拉伸强度和断裂拉伸率来进行衡量,测试机械性能所使用的仪器为为电子万能试验机AGS-X岛津。
表1
以上对本发明做了详尽的描述,其目的在于让熟悉此领域技术的人士能够了解本发明的内容并加以实施,并不能以此限制本发明的保护范围,凡根据本发明的精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围内。
Claims (5)
1.一种透明背板的硬化方法,其特征在于:在80~120℃下对透明背板的氟膜面进行压制,控制所述的压制的压力为0.5~1.5atm,其中,所述的透明背板为KPf型透明背板或KPK型透明背板,所述KPf型透明背板或所述KPK型透明背板市售获得,采用滚动的方式进行所述的压制。
2.根据权利要求1所述的透明背板的硬化方法,其特征在于:所述的氟膜面的材质为透明聚偏氟乙烯膜。
3.根据权利要求1所述的透明背板的硬化方法,其特征在于:控制所述的压制的压力为0.8~1.2atm。
4.根据权利要求3所述的透明背板的硬化方法,其特征在于:控制所述的压制的压力为0.9~1.1atm。
5.一种如权利要求1至4中任一项所述的硬化方法制得的透明背板。
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CN102208458A (zh) * | 2011-04-11 | 2011-10-05 | 北京精诚铂阳光电设备有限公司 | 大面积柔性薄膜太阳能电池及其制造方法 |
CN102922843A (zh) * | 2012-11-26 | 2013-02-13 | 山东东岳高分子材料有限公司 | 一种高粘结强度的太阳能电池背板膜及其制备方法 |
CN203055940U (zh) * | 2012-12-07 | 2013-07-10 | 李民 | 两层结构的太阳能电池背板 |
CN104253170A (zh) * | 2013-06-25 | 2014-12-31 | 明冠能源(江西)有限公司 | 一种高集成太阳能光伏组件封装背板及其制备方法 |
CN107611199A (zh) * | 2017-08-03 | 2018-01-19 | 浙江帆度光伏材料有限公司 | 一种覆膜型太阳能电池背板 |
CN108767042A (zh) * | 2018-05-24 | 2018-11-06 | 苏州中来光伏新材股份有限公司 | 一种反射增益型高透过率太阳能电池背膜及其制备方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN102208458A (zh) * | 2011-04-11 | 2011-10-05 | 北京精诚铂阳光电设备有限公司 | 大面积柔性薄膜太阳能电池及其制造方法 |
CN102922843A (zh) * | 2012-11-26 | 2013-02-13 | 山东东岳高分子材料有限公司 | 一种高粘结强度的太阳能电池背板膜及其制备方法 |
CN203055940U (zh) * | 2012-12-07 | 2013-07-10 | 李民 | 两层结构的太阳能电池背板 |
CN104253170A (zh) * | 2013-06-25 | 2014-12-31 | 明冠能源(江西)有限公司 | 一种高集成太阳能光伏组件封装背板及其制备方法 |
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CN108767042A (zh) * | 2018-05-24 | 2018-11-06 | 苏州中来光伏新材股份有限公司 | 一种反射增益型高透过率太阳能电池背膜及其制备方法 |
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