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Simple process to fabricate a superhydrophobic coating

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2 Author(s)
Momen, G. ; Dept. of Atmos. Icing Eng. of Power Networks (INGIVRE), Univ. du Quebec a Chicoutimi, Chicoutimi, QC, Canada ; Farzaneh, M.

The present study investigates a very simple and inexpensive superhydrophobic coating preparation by spray-coating a silicone rubber/stearic acid mixture on a flat surface using a one-step process. The wettability of the coatings was found to be dependent on the surface morphology that was governed by the stearic acid concentration. A water static contact angle of 160° ± 3 and low contact angle hysteresis of 4° ± 1 was obtained for the surface coated with 43 wt% of stearic acid, on which water droplet easily roll off and bounce. At supercooled temperature (-15°C) the fabricated superhydrophobic coating showed an important delayed freezing time and icephobic behaviour.

Published in:

Micro & Nano Letters, IET  (Volume:6 ,  Issue: 6 )