Department of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA, 19104, USA.
Adv Mater. 2014 Feb 26;26(8):1283-8. doi: 10.1002/adma.201304030. Epub 2013 Nov 29.
A reconfigurable, droplet-directing surface is developed based on high-aspect-ratio shape-memory polymer (SMP) pillars. The water droplet on the original or recovered SMP pillars can slide off the surface at a finite angle of inclination while being fully pinned on the deformed pillar array. This wettability contrast allows directed water shredding from the straight pillars to the deformed ones.
基于高纵横比形状记忆聚合物（SMP）支柱，开发了一种可重构的液滴导向表面。原始或恢复的 SMP 支柱上的水滴可以在有限的倾斜角度下从表面滑下，同时完全固定在变形的支柱阵列上。这种润湿性对比允许从直支柱到变形支柱的定向水碎。
