A superhydrophobic surface patterned with hydrophilic channels for directional sliding control and manipulation of droplets
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 126836 |
Journal / Publication | Surface and Coatings Technology |
Volume | 409 |
Online published | 13 Jan 2021 |
Publication status | Published - 15 Mar 2021 |
Link(s)
Abstract
Rapid and controllable sliding of droplets on anisotropic superhydrophobic surface has significant meaning in advanced science and technologies, thus being widely studied in recent years. Herewith, we reported a fabrication of micro- and nano- fractal superhydrophobic surface patterned with micro hydrophilic channels using laser direct writing method. The sliding angle of droplets in the direction parallel to the channels is as low as 8°. While, in the perpendicular direction, droplets exhibit rather high sliding angle, even being pinned to the surface that is tilted to fully upright (sliding angle to be 90°). Such significant anisotropic property enables droplets slide along the pre-assigned stripe-shaped patterns rapidly and steadily, when a droplet is released on a slope. The guidance action still works even when the surface is inverted. Consequently, the patterned surface is suitably designed as a novel droplet manipulate device, which easily achieves effective weight lossless transportation of droplets.
Research Area(s)
- Control, Sliding, Superhydrophobic, Water droplet
Citation Format(s)
A superhydrophobic surface patterned with hydrophilic channels for directional sliding control and manipulation of droplets. / Zhang, Hui; Liu, Yang; Zhang, Zhiwei et al.
In: Surface and Coatings Technology, Vol. 409, 126836, 15.03.2021.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review