Directed Water Shedding on High-Aspect-Ratio Shape Memory Polymer Micropillar Arrays

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 we...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2014-02, Vol.26 (8), p.1283-1288
Main Authors: Chen, Chi-Mon, Yang, Shu
Format: Article
Language:English
Subjects:
Arrays
Deformation
Droplets
high-aspect-ratio pillars
Inclination
Mathematical analysis
Pillars
Shape memory
shape memory polymers
Shredding
water sliding
wettability
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Summary: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201304030