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Recoverable and thermally stable superhydrophobic silica coating

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Abstract

A facile route to methyltrimethoxysilane (MTMS) based recoverable superhydrophobic silica coatings with dual-scale roughness obtained through the single step base catalyst sol–gel process. Superhydrophobic silica coatings have shown static water contact angle near about 170 ± 1° and dynamic water contact angle up to 2 ± 1°. Superhydrophobic-superhydrophilic switching feature also achieved by alternating heat treatment and bath surface modification with Trimethylchlorosilane (TMCS) at room temperature (26 °C). Furthermore, the superhydrophobic state could be transformed into superhydrophilic state by slow rate heat treatment. These studies present a very simple strategy for the fabrication of recoverable superhydrophobic surfaces.

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Acknowledgments

Author Satish Mahadik gratefully acknowledge to Department of Atomic Energy (DAE), Board of Research in Atomic Energy (DAE) Board of Research in Nuclear Science (BRNS) Mumbai, Government of India for research fund and University Grant Commission (UGC), New Delhi, Government of India, for providing fellowship under scheme “UGC research fellowship in sciences for meritorious students”.

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Authors and Affiliations

  1. Air Glass Laboratory, Department of Physics, Shivaji University, Kolhapur, 416 004, Maharashtra, India

    Satish A. Mahadik, D. B. Mahadik, V. G. Parale & A. Venkateswara Rao

  2. Applied Physics Division, Bhabha Atomic Research Centre (BARC), Trombay, Mumbai, 400085, India

    P. B. Wagh & Satish Gupta

Authors
  1. Satish A. Mahadik
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  2. D. B. Mahadik
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  3. V. G. Parale
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  4. P. B. Wagh
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  5. Satish Gupta
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  6. A. Venkateswara Rao
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Corresponding author

Correspondence to A. Venkateswara Rao.

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Mahadik, S.A., Mahadik, D.B., Parale, V.G. et al. Recoverable and thermally stable superhydrophobic silica coating. J Sol-Gel Sci Technol 62, 490–494 (2012). https://doi.org/10.1007/s10971-012-2753-3

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  • DOI: https://doi.org/10.1007/s10971-012-2753-3

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