Origins of Extreme Liquid Repellency on Structured, Flat, and Lubricated Hydrophobic Surfaces

Dan Daniel; Jaakko V.I. Timonen; Ruoping Li; Seneca J. Velling; Michael J. Kreder; Adam Tetreault; Joanna Aizenberg

doi:10.1103/PhysRevLett.120.244503

Origins of Extreme Liquid Repellency on Structured, Flat, and Lubricated Hydrophobic Surfaces

Dan Daniel, Jaakko V.I. Timonen, Ruoping Li, Seneca J. Velling, Michael J. Kreder, Adam Tetreault, Joanna Aizenberg

Research output: Contribution to journal › Article › peer-review

117 Scopus citations

Abstract

There are currently three main classes of liquid-repellent surfaces: micro- or nanostructured superhydrophobic surfaces, flat surfaces grafted with "liquidlike" polymer brushes, and lubricated surfaces. Despite recent progress, the mechanistic explanation for the differences in droplet behavior on such surfaces is still under debate. Here, we measure the dissipative force acting on a droplet moving on representatives of these surfaces at different velocities U=0.01-1 mm/s using a cantilever force sensor with submicronewton accuracy and correlate it to the contact line dynamics observed using optical interferometry at high spatial (micron) and temporal (

Original language	English (US)
Journal	Physical Review Letters
Volume	120
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.120.244503
State	Published - Jun 15 2018
Externally published	Yes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-02-14

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.120.244503

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AU - Daniel, Dan

AU - Timonen, Jaakko V.I.

AU - Li, Ruoping

AU - Velling, Seneca J.

AU - Kreder, Michael J.

AU - Tetreault, Adam

AU - Aizenberg, Joanna

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AB - There are currently three main classes of liquid-repellent surfaces: micro- or nanostructured superhydrophobic surfaces, flat surfaces grafted with "liquidlike" polymer brushes, and lubricated surfaces. Despite recent progress, the mechanistic explanation for the differences in droplet behavior on such surfaces is still under debate. Here, we measure the dissipative force acting on a droplet moving on representatives of these surfaces at different velocities U=0.01-1 mm/s using a cantilever force sensor with submicronewton accuracy and correlate it to the contact line dynamics observed using optical interferometry at high spatial (micron) and temporal (

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Origins of Extreme Liquid Repellency on Structured, Flat, and Lubricated Hydrophobic Surfaces

Abstract

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