光伏组件背板耐磨性能浅析

Analysis of Abrasion Resistance of Backsheets for Photovoltaic Modules

本文根据GB/T 23988-2009《涂料耐磨性测定落砂法》评价聚合物背板材料耐磨性能,并以塔克拉玛干沙漠地区的年输沙量为例,计算组件背板材料的试验面积在25年正常使用过程中风沙流的输沙量,分别选取加速老化试验前后同一型号的背板进行耐磨试验并记录磨料用量,结果显示老化前的背板输沙量高于老化后,同时老化前后均高于塔克拉玛干沙漠地区的年输沙量,提出了在耐磨试验前应增加环境老化等预处理试验。

Discussion in this paper is based on national standard, GB/T 23988-2009, Determination for abrasion resistance of Coatings by falling abrasive, and calculates the total sand flux during 25 years where backsheet will be used, such as Taklimakan Desert. The paper also carries out the abrasion test on different specimens before and after preconditioning, and it is shown that all test results are more than the total sand flux in Taklimakan Desert. Moreover, the study suggests adding aging process before the abrasion test.