Anti-splashing properties of sticky superhydrophobic surfaces
SCIE
SCOPUS
- Title
- Anti-splashing properties of sticky superhydrophobic surfaces
- Authors
- KIM, WUSEOK; EUN, JA KYUNG; JEON, SANGMIN
- Date Issued
- 2021-03
- Publisher
- ELSEVIER
- Abstract
- We used a high-speed camera to investigate the effect of pore structures on the anti-splashing properties of superhydrophobic surfaces. Zinc oxide (ZnO) nanowires with open air pockets and anodic aluminum oxide (AAO) with sealed air pockets were synthesized and subsequently treated with a low-energy self-assembled monolayer to render their surfaces superhydrophobic. The water contact angle of the superhydrophobic ZnO surface (SH-ZnO) was almost identical to that of the superhydrophobic AAO surface (SH-AAO); however, SH-AAO exhibited greater adhesion than SH-ZnO, which we attributed to the difference in the structures of air pockets. In addition, when a water droplet impacted SH-AAO, the surface effectively suppressed droplet splashing because of high adhesion; by contrast, the conventional superhydrophobic surface (i.e., SH-ZnO) promoted droplet splashing because of the presence of an air layer between the impacting water and the solid surface. The anti-splashing behavior of SH-AAO was observed not only for the impact of a water droplet but also for the impact of a water jet on the surface.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/106689
- DOI
- 10.1016/j.apsusc.2020.148617
- ISSN
- 0169-4332
- Article Type
- Article
- Citation
- APPLIED SURFACE SCIENCE, vol. 542, 2021-03
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.