A novel conformal coating process is presented to transform surfaces with micro-morphology into hierarchical superhydrophobic surfaces using one-step, wet chemical spray casting. The nanocomposite coating consists of zinc oxide nanoparticles and organomodified polydimethylsiloxane (PDMS), also known as organosilane quaternary nitrogen compound. The coating is applied to a micro-patterned PDMS substrate of cylindrical microposts to create a stable superhydrophobic state for water droplets. An explanation for the non-wetting performance of the conformal nanocomposite coatings compared to previous non-conformal surfaces is also proposed.
- Fluids Engineering Division
Conformal Nanocomposite Spray Coatings on Micro-Patterned Surfaces for Superhydrophobicity
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Steele, A, Moran, S, Cannon, A, King, W, Bayer, I, & Loth, E. "Conformal Nanocomposite Spray Coatings on Micro-Patterned Surfaces for Superhydrophobicity." Proceedings of the ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. Volume 2: Fora. Jacksonville, Florida, USA. August 10–14, 2008. pp. 561-566. ASME. https://doi.org/10.1115/FEDSM2008-55051
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