当前位置: X-MOL 学术J. Supercrit. Fluids › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
CO2 absorption into a polymer within a multilayer structure: The case of poly(ethylene-co-vinyl acetate) in photovoltaic modules
The Journal of Supercritical Fluids ( IF 3.4 ) Pub Date : 2021-08-12 , DOI: 10.1016/j.supflu.2021.105380
Axel Briand 1, 2 , Antoine Leybros 1 , Claire Audoin 2 , Jean Christophe Ruiz 1 , Fabrice Lamadie 1 , Agnès Grandjean 1
Affiliation  

The delamination of photovoltaic modules with supercritical CO2 is an interesting approach to integrate photovoltaics into a circular economy. This article describes the first phase of this process: the absorption of CO2 into poly(ethylene-co-vinyl acetate) (EVA-28), one of the layers in a photovoltaic module. The swelling of the polymer, determined by an on-line coupling between high pressure cell and an optical method using digital camera, under 60–200 bar at 60, 75 and 90 °C, was well reproduced by a modified Sanchez-Lacombe equation of state. The diffusion coefficient of CO2 into EVA-28 was determined using the same approach and was found to range, at 130 bar, from 1.1 × 10−9 m2·s−1 at 60 °C to 1.8 × 10−9 m2·s−1 at 90 °C. A preferential CO2 diffusion at the rear side of the cell, due to a high porosity, and at the “backsheet” interface was highlighted.



中文翻译:

多层结构内的聚合物吸收二氧化碳:光伏组件中的聚(乙烯-共-醋酸乙烯酯)案例

使用超临界 CO 2对光伏模块进行分层是将光伏技术整合到循环经济中的一种有趣方法。本文介绍了该过程的第一阶段:将 CO 2吸收到聚(乙烯-共-醋酸乙烯酯)(EVA-28)中,这是光伏模块中的一层。聚合物的溶胀,由高压电池和使用数码相机的光学方法之间的在线耦合确定,在 60-200 bar、60、75 和 90 °C 下,通过改进的 Sanchez-Lacombe 方程很好地再现了状态。CO 2进入 EVA-28的扩散系数使用相同的方法确定,发现在 130 bar 下的范围为 1.1 × 10 -9 m 2 ·s -1在 60 °C 到 1.8 × 10 -9 m 2 ·s -1在 90 °C。由于高孔隙率,电池背面和“背板”界面的CO 2优先扩散被突出显示。

更新日期:2021-09-27
down
wechat
bug