1. Facile Fabrication of a Superhydrophobic Surface with Robust Micro-/Nanoscale Hierarchical Structures on Titanium Substrate.
- Author
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Dong, Shuliang, Wang, Zhenlong, An, Libao, Li, Yaogang, Wang, Baozhong, Ji, Hongchao, and Wang, Han
- Subjects
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SUPERHYDROPHOBIC surfaces , *HYDROPHOBIC surfaces , *TITANIUM , *CONTACT angle , *ELECTROCHEMICAL cutting , *SURFACE structure , *METALLIC surfaces , *COPPER surfaces - Abstract
A superhydrophobic surface with robust structures on a metallic surface could improve its application in various harsh conditions. Herein, we developed a new strategy to fabricate robust micro-/nanoscale hierarchical structures with electrical discharge machining and electrochemical etching on a titanium substrate. After modification by fluorinated silane, the static water contact angle and slide angle of the surface could reach 162 ± 2° and 4 ± 1°, respectively. The superhydrophobic surfaces showed good corrosion resistance and mechanical stability after scratching with sandpapers. In addition, the superhydrophobic surfaces had good self-cleaning performance even in an acidic environment as well as the potential to be used as guiding tracks in droplet microfluidics and lab-on-a-chip systems. These results are expected to be helpful in designing the surface of liquid float gyroscope parts. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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