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Superoleophobic Surfaces on Al and Mg Alloy Substrates Through Rapid Surface Micro/Nanometer-Scale Structuring

[+] Author Affiliations
Jinlong Song, Shuai Huang, Xin Liu, Wenji Xu

Dalian University of Technology, Dalian, Liaoning, China

Paper No. MSEC2014-3990, pp. V001T03A007; 7 pages
doi:10.1115/MSEC2014-3990
From:
  • ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference
  • Volume 1: Materials; Micro and Nano Technologies; Properties, Applications and Systems; Sustainable Manufacturing
  • Detroit, Michigan, USA, June 9–13, 2014
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-4580-6
  • Copyright © 2014 by ASME

abstract

A facile and highly efficient electroless deposition method to rapidly fabricate superoleophobic surfaces on Al and Mg alloy substrates is described herein. Hierarchical micro/nanometer-scale rough Cu structures required by superoleophobic surfaces were fabricated on Al substrates via immersing Al plates in the mixed solution containing CuSO4 and NaCl. Hierarchical micro/nanometer-scale rough Ag structures were fabricated on Mg alloy substrates via immersing Mg alloy plates in the aqueous AgNO3 solution. After perfluorooctanoic acid modification, in-air superoleophobic Al and Mg alloy surfaces were obtained. The contact angles of peanut oil on superoleophobic Al and Mg alloy surfaces are 156.5 ± 2.5° and 150.5 ± 1°, respectively. The sliding angles of peanut oil on the aforementioned two surfaces are 4° and 50°, respectively. The shortest times for the fabrication of superoleophobic Al and Mg alloy surfaces are no more than 60 s and 20 min, respectively. Applications of such surfaces are envisioned in the fields of industrial processing of low-surface tension liquids such as distilling and pipe-line transport of petroleum products or where surfaces are exposed to dirty oil/water environments.

Copyright © 2014 by ASME

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