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Mechanically stable superhydrophobic nanostructured aluminum mesh with reduced water surface friction

Taghvaei, E ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.1088/1361-6528/abe071
  3. Publisher: IOP Publishing Ltd , 2021
  4. Abstract:
  5. Superhydrophobic surfaces demonstrate significant characteristics which make them suitable for a wide variety of applications. In this study, we propose a facile, one-step, and cost-effective anodizing scheme using aluminum nitrate/stearic acid mixture solution to create a superhydrophobic surface on an aluminum mesh. The surface outperforms the surface anodized by the widely used oxalic acid solution in terms of superhydrophobicity and water-surface friction behavior. The proposed surface reduced the friction by 11% on average respective to the surface prepared by oxalic acid. The durability of the introduced superhydrophobic surface has also been investigated. The proposed surface retained its high water contact angle and showed higher hydrophobicity relative to the surface anodized by oxalic acid after ten abrasion cycles. This method and surface may be used for numerous applications due to its ease of fabrication, low cost, and excellent performance in energy-loss reduction. © 2021 IOP Publishing Ltd Printed in the UK
  6. Keywords:
  7. Aluminum compounds ; Contact angle ; Cost effectiveness ; Energy dissipation ; Friction ; Mesh generation ; Superhydrophobicity ; Surface properties ; Aluminum nitrate ; Cost effective ; Loss reduction ; Mechanically stable ; Nano-structured ; Oxalic acid solution ; Super-hydrophobic surfaces ; Water surface ; Oxalic acid
  8. Source: Nanotechnology ; Volume 32, Issue 19 , 2021 ; 09574484 (ISSN)
  9. URL: https://iopscience.iop.org/article/10.1088/1361-6528/abe071