Fog collecting biomimetic surfaces: Influence of microstructure and wettability
Fog collecting biomimetic surfaces: Influence of microstructure and wettability
复制标题
DOI：
10.1088/1748-3190/10/1/016004
复制
发表时间：
2015-02-01
影响因子：
3.4
通讯作者：
Koch, K.
中科院分区：
文献类型：
--
作者：
Azad, M. A. K.;Ellerbrok, D.;Koch, K.
我们分析了三组不同样品的集雾效率：复制品（有和没有微观结构），铜线（光滑和微槽）和聚烯烃网（亲水，超亲水和疏水）。在每组中分别比较样品的收集效率，以研究微结构和/或表面的润湿性对雾收集的影响。基于这里选择的控制实验条件，发现效率上的巨大差异。我们发现微结构植物复制品样品收集的水量是非结构化（光滑）样品的2-3倍。铜线样品显示出类似的结果。此外，微槽线比光滑线具有更快的水滴滴落。这里测试的超亲水网被证明比具有不同润湿性的任何其他网样品更有效。通过超亲水性网收集的雾的量比亲水性（未处理的）网高约5倍，并且比疏水性网高约2倍。
We analyzed the fog collection efficiency of three different sets of samples: replica (with and without microstructures), copper wire (smooth and microgrooved) and polyolefin mesh (hydrophilic, superhydrophilic and hydrophobic). The collection efficiency of the samples was compared in each set separately to investigate the influence of microstructures and/or the wettability of the surfaces on fog collection. Based on the controlled experimental conditions chosen here large differences in the efficiency were found. We found that microstructured plant replica samples collected 2-3 times higher amounts of water than that of unstructured (smooth) samples. Copper wire samples showed similar results. Moreover, microgrooved wires had a faster dripping of water droplets than that of smooth wires. The superhydrophilic mesh tested here was proved more efficient than any other mesh samples with different wettability. The amount of collected fog by superhydrophilic mesh was about 5 times higher than that of hydrophilic (untreated) mesh and was about 2 times higher than that of hydrophobic mesh.