Abstract
Superhydrophobic materials have recently attracted attention from both academic and industrial circles because of their importance in fundamental research and potential industrial applications such as anti-biofouling, transparent, and antireflective superhydrophobic coatings, fluidic drag reduction, controlled transportation of fluids, battery and fuel cell applications, prevention of water corrosion, and oil–water separation. A simple method to fabricate superhydrophobic conductive nanocomposite coatings on the glass, as well as cotton fabric, is presented in this work. The coating is prepared from commercially available carbon black and a fluorosurfactant by a simple spray technique. The conductivity of the coating is measured by the four-point probe method. The coatings showed stable superhydrophobicity in acidic and basic solutions over a wide pH range 1–13. The water immersion test was carried out to determine the stability of the coating underwater. The coating is thermally stable up to 200 °C. The main characterizations include field emission scanning electron microscopy (FESEM), water contact angle (WCA) and sliding angle measurements, 3D-profilometer, and adhesion test. The superhydrophobic carbon black cotton fabric was tested for its efficiency to separate water from water/petroleum ether mixture. This method helps to fabricate an easy-to-repair superhydrophobic coating on glass as well as cotton fabric.
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Acknowledgements
The authors thank Director, NAL and Head, SED for their constant encouragement. The authors thank Mr. Siju and Mr. Praveen for the help received in FESEM and 3D profilometry.
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Richard, E., Aruna, S.T. (2022). Facile Fabrication of Stable Superhydrophobic and Conductive Carbon Black Coating. In: Mudali, U.K., Aruna, S.T., Nagaswarupa, H.P., Rangappa, D. (eds) Recent Trends in Electrochemical Science and Technology. Springer Proceedings in Materials, vol 15. Springer, Singapore. https://doi.org/10.1007/978-981-16-7554-6_19
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DOI: https://doi.org/10.1007/978-981-16-7554-6_19
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