Article history: A facile approach to fabricate a stable superhydrophobic composite comprising multi-walled carbon Received 7 September 2015 nanotubes and silicone rubber has been reported. Contact angle of de-ionized water droplets on the Received in revised form 2 February 2016 ◦ prepared surface was measured with the value of near 159 ; while water droplets easily rolled off and Accepted 3 February 2016 bounced on it. Surface free energy of the superhydrophobic coating was examined by three methods Available online 6 February 2016 about 26 mJ/m . The prepared ﬁlm shows good stability under high stress conditions such as ultraviolet exposure, heating, pencil hardness test, attacking with different pH value and ionic-strength solutions. In Keywords: addition, remarkable stability of the coating was observed after soaking in condensed hydrochloric acid, Superhydrophobic 5 wt.% NaCl aqueous solution, boiling water and tape test. Carbon nanotubes © 2016 Elsevier B.V. All rights reserved. Contact angle Silicone rubber Surface free energy 1. Introduction surface [18–20], and vertical alignment of nanotubes or nanoﬁbers [21,22]. Superhydrophobic surfaces are usually observable on plant In recent decade, carbon nanotubes (CNTs) have been leaves in nature. This property of surface is known as the lotus introduced as an appropriate
Applied Surface Science – Elsevier
Published: Apr 30, 2016
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