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• Mauermann, M
• Bellmann, C
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• Mauermann, M
• Bellmann, C

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Materials 2012, 5(12), 2773-2787; doi:10.3390/ma5122773

Article

Topographical Anisotropy and Wetting of Ground Stainless Steel Surfaces

Alfredo Calvimontes ^1,* , Marc Mauermann ²  and Cornelia Bellmann ¹

¹ Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden, Germany ² Fraunhofer Application Centre for Processing Machines and Packaging Technology, Heidelberger Strasse 20, 01189 Dresden, Germany

* Author to whom correspondence should be addressed.

Received: 27 September 2012; in revised form: 14 November 2012 / Accepted: 4 December 2012 / Published: 12 December 2012

Download PDF Full-Text [1338 KB, uploaded 12 December 2012 09:40 CET]

Abstract: Microscopic and physico-chemical methods were used for a comprehensive surface characterization of different mechanically modified stainless steel surfaces. The surfaces were analyzed using high-resolution confocal microscopy, resulting in detailed information about the topographic properties. In addition, static water contact angle measurements were carried out to characterize the surface heterogeneity of the samples. The effect of morphological anisotropy on water contact angle anisotropy was investigated. The correlation between topography and wetting was studied by means of a model of wetting proposed in the present work, that allows quantifying the air volume of the interface water drop-stainless steel surface.

Keywords: topographical anisotropy; wetting; stainless steel surfaces; wetting regimes

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