| DOI | Resolve DOI: https://doi.org/10.1016/j.apsusc.2011.12.100 |
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| Author | Search for: Yin, Long; Search for: Wang, Yuanyi; Search for: Ding, Jianfu1; Search for: Wang, Qingjun; Search for: Chen, Qingmin |
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| Affiliation | - National Research Council of Canada. NRC Institute for Chemical Process and Environmental Technology
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| Format | Text, Article |
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| Subject | Superhydrophobic; Condensation; Contact angle; Sliding angle; Surface temperature; Relative humidity |
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| Abstract | In this work, we have fabricated superhydrophobic aluminum surfaces by a facile chemical etching method. Surface morphology and composition were studied by using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). To comparatively investigate the effect of environmental factors on superhydrophobic behaviors of surfaces with different low-surface-energy coatings under controllable condensation conditions, contact and sliding angles were measured from −10 °C to 30 °C under relative humidity (RH) of 30, 60 and 90%, respectively. The calculation of the solid–liquid contact area fraction quantitatively explained the increased wettability characterized by descending contact angle and ascending sliding angle under low temperature and high humidity, and indicated a transition of the equilibrium state from Cassie–Baxter to Wenzel on rough surfaces. The wettability restoration test showed that the loss of superhydrophobicity during condensation could be recovered completely after a drying process at room temperature. |
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| Publication date | 2012-02-01 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | S0169433211020162 |
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| NPARC number | 21268665 |
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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 | 0589fe57-d356-4287-98fa-fc98ab40400c |
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| Record created | 2013-11-06 |
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| Record modified | 2020-04-21 |
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