| DOI | Resolve DOI: https://doi.org/10.1115/IMECE2014-39395 |
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| Author | Search for: Farsinezhad, Samira; Search for: Waghmare, Prashant; Search for: Wiltshire, Benjamin D.; Search for: Amiri, Saeid; Search for: Mitra, Sushanta K.; Search for: Shankar, Karthik1 |
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| Affiliation | - National Research Council of Canada. National Institute for Nanotechnology
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| Format | Text, Article |
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| Conference | ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014, 14 November 2014 through 20 November 2014 |
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| Subject | Contact angle; Liquids; Titanium dioxide; Wetting; Electro-chemical anodization; Functionalized nanotubes; Functionalized tio; Nonpolar liquids; Static contact angle; Surface Functionalization; Transition state; Wetting behavior; Nanotubes |
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| Abstract | A facile electrochemical anodization method was used for producing hierarchically textured surfaces based on TiO2 nanotubes in two different configurations. It was found that perfluoro-functionalized TiO2 nanotubes exhibit high static contact angles for a variety of liquids such as apolar, polar aprotic and polar protic solvents. Wenzel and Cassie-Baxter theories were applied for theoretical contact angle calculations for the present study. By using Cassie theories, it is shown that a drop of polar liquid was in a fakir or Cassie-Baxter (CB) state on perfluoro-functionalized nanotube surfaces. The fakir state prevents spreading of the liquid on the surface. On the other hand, the wetting of non-polar liquids such as hexane is characterized by either Wenzel states or transition states characterized by partial imbibition that lie in between the CB and Wenzel states. |
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| Publication date | 2014-10-14 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21275570 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | c566f8a1-790f-4485-8fe5-00951345e6c9 |
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| Record created | 2015-07-14 |
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| Record modified | 2020-04-22 |
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