期刊
AIP ADVANCES
卷 1, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3662046
关键词
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资金
- National Research Foundation [NRF2010-0009545, NRF2010-0015975]
- Korean Research Foundation
- Korean Government (MOEHRD) [KRF-2008-005-J00501]
We have investigated the influence of impact velocity and intrinsic surface wettability of nanostructures on the impact dynamic behaviors of water droplets on nanostructure surfaces. Nanowires array surfaces with tunable wettabilities ranging from superhydrophilic to superhydrophobic were fabricated by the deposition of surface modifiers differing in alkyl chain length. The transition criteria of rebound/wetting state and rebound/splashing state based on the relationship between the Webber (We) number and the surface free energy were determined. We have confirmed that the critical We number that determines the transition of the rebound/wetting increased as surface energy decreased. Additionally, the We number at which fragmentation occurred on our superhydrophobic surface was relatively low compared to previously reported values. Copyright 2011 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [doi: 10.1063/1.3662046]
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