NDLI: Wetting on chemically heterogeneous surfaces: Pseudo-spherical approximation for sessile drops

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Wetting on chemically heterogeneous surfaces: Pseudo-spherical approximation for sessile drops

Content Provider	Scilit
Author	Mittal, Kash L.
Copyright Year	2006
Description	PEDRO GEA-JODAR, 1 MIGUEL ANGEL RODRIGUEZ-VAL VERDE2 and MIGUEL ANGEL CABRERIZO-VILCHEZ'·* 1Biocolloid and Fluid Physics Group, Department of Applied Physics, Faculty of Sciences, University of Granada, E-18071 Granada, Spain 2Polymers and Composites Laboratory, Department of Materials Engineering and Industrial Technologies, University ofTrento, I-38050 Trento, Italy Abstract-In this work, wetting on rigid, flat and chemically heterogeneous solid surfaces is studied theoretically. For this purpose two different methods have been employed: (i) computer calculations performed with the public-domain software Surface Evolver and (ii) an approximation to describe the sessile drops on non-ideal solid surfaces, called pseudo-spherical caps in this study. The use of these two methods was complementary and allowed us to interpret the behavior of a drop on a heterogeneously patterned surface, besides predicting the values of contact parameters, such as contact angle, contact area, etc. Two different chemical heterogeneity patterns have been analyzed: a striped pattern and a chessboard pattern. The results are also compared with the values expected from the Cassie equation. The good agreement obtained using these two methods allows us to extend the pseudo-spherical approximation to more complex surfaces. Book Name: Contact Angle, Wettability and Adhesion, Volume 4
Related Links	https://content.taylorfrancis.com/books/download?dac=C2012-0-01938-1&isbn=9780429087684&doi=10.1201/b12166-14&format=pdf
Ending Page	214
Page Count	20
Starting Page	195
DOI	10.1201/b12166-14
Language	English
Publisher	Informa UK Limited
Publisher Date	2006-06-01
Access Restriction	Open
Subject Keyword	Book Name: Contact Angle, Wettability and Adhesion, Volume 4 Polymer Science Behavior Approximation Drops Spherical Angel Miguel Granada Pseudo Chemically Heterogeneous
Content Type	Text
Resource Type	Chapter

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