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.
- Manufacturing Engineering Division
Superoleophobic Surfaces on Al and Mg Alloy Substrates Through Rapid Surface Micro/Nanometer-Scale Structuring
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Song, J, Huang, S, Liu, X, & Xu, W. "Superoleophobic Surfaces on Al and Mg Alloy Substrates Through Rapid Surface Micro/Nanometer-Scale Structuring." Proceedings of the 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. V001T03A007. ASME. https://doi.org/10.1115/MSEC2014-3990
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