Long-range ordered straight holes manufacturing in polyimide for proton exchange membrane fuel cells

Long-range ordered straight holes manufacturing in polyimide for proton exchange membrane fuel cells
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用于质子交换膜燃料电池的聚酰亚胺远程有序直孔制造

DOI:
10.1016/j.optlastec.2013.06.033
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发表时间:
2013-12
影响因子:
5
通讯作者:
Xiaoyan Zeng
Xiaoyan Zeng
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Huan Yang;Leimin Deng;Wei Guo;Fei Zhang;Jun Duan;Haolin Tang;Xiaoyan Zeng

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在这项研究中,使用 355 nm Nd:YVO4 紫外线激光器制造了具有可定义开放图案和直径 100-200 μm 的长程有序直孔,以维持 Nafion 树脂的耐用质子交换膜。由直孔聚酰亚胺支撑体制备的复合质子交换膜成功地降低了质子交换膜在不同湿度下的尺寸膨胀和湿度引起的应力。研究了激光注量和重叠率对直孔尺寸精度和质量的影响。还测定了复合质子交换膜的热力学机械性能和单电池性能。实验结果表明,采用合适的扫描速度、高重复频率和合适的激光能量密度进行激光套孔,可以实现精度高、质量好的长程有序直孔。
In this study, long-range ordered straight holes with definable open pattern and diameter of 100–200 μm were manufactured using a 355 nm Nd:YVO4ultraviolet laser to sustain Nafion resin for durable proton exchange membranes. Composite proton exchange membrane prepared from the straight-hole polyimide support successfully reduced the dimensional swelling and humidity-induced stress of the proton exchange membrane under variable humidities. The effect of laser fluence and overlap rate on the size precision and quality of the straight holes were investigated. The thermodynamic mechanical capacity of composite proton exchange membrane and the single cell performance were also determined. The experimental results showed that long-range ordered straight holes with high precision and good quality could be achieved by laser trepanning with appropriate scanning speed, high repetition frequency and suitable laser fluence.
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