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Computer Modelling of the Influence of Surface Topography on Water Repellency and a Study on Hydrophobic Paper Surfaces with Partly Controlled Roughness
Linköping University, The Department of Physics, Chemistry and Biology.
2003 (Swedish)Independent thesis Basic level (professional degree)Student thesisAlternative title
Datamodellering av yttopografins inverkan på vattenavvisning och en studie på hydrofoba pappersytor med delvis kontrollerad råhet (English)
Abstract [en]

A computer model based on minimization of the free energy, capable to predict contact angles and spreading transitions between Wenzel and Cassie mode for drops placed on surfaces with different topography were implemented in matlab. Simulations were compared with experiments documented in the literature. These showed that reported transitions between Cassie and Wenzel mode can be explained by minimization of the free energy. In this report, a study on the possibility of constructing water repellent paper surfaces with a combination of treatment with octadecyltrichlorosilane and topography changes, is included.

Place, publisher, year, edition, pages
Institutionen för fysik, kemi och biologi , 2003.
Keyword [en]
Physics, Hydrophobic, Surface, Computer Modelling, Water-Repellent, Wetting, Topography, Wenzel, Cassie, Transitions. Paper, Octadecyltrichlorosilane
Keyword [sv]
National Category
Physical Sciences
URN: urn:nbn:se:liu:diva-2614ISRN: LITH-IFM-EX--03/1168--SEOAI: diva2:19950
Available from: 2005-01-25 Created: 2005-01-25

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