Meniscus deformation and dynamics of moving contact line between poly(ethylene terephthalate) surface and glycerol-water mixtures

Karakashev, S. I. and Nguyen, A. V. (2009) Meniscus deformation and dynamics of moving contact line between poly(ethylene terephthalate) surface and glycerol-water mixtures. ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING, 4 2: 204-210. doi:10.1002/apj.222


Author Karakashev, S. I.
Nguyen, A. V.
Title Meniscus deformation and dynamics of moving contact line between poly(ethylene terephthalate) surface and glycerol-water mixtures
Journal name ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING   Check publisher's open access policy
ISSN 1932-2143
Publication date 2009-03-01
Year available 2009
Sub-type Article (original research)
DOI 10.1002/apj.222
Open Access Status
Volume 4
Issue 2
Start page 204
End page 210
Total pages 7
Editor Yao, H. M
Tade, M. O.
Place of publication United Kingdom
Publisher Wiley & Sons
Language eng
Subject C1
030603 Colloid and Surface Chemistry
970103 Expanding Knowledge in the Chemical Sciences
Abstract The microscopic hydrodynamic (HD) and macroscopic theories for describing the meniscus deformation and dynamics of a moving contact line have been analyzed and compared by using the extrapolated dynamic contact angles between a poly(ethylene terephthalate) (PET) surface and glycerol-water mixtures. The analysis showed that the microscopic theory is confined by the microscopic length scale and small capillary number. The macroscopic theory is not subjected to any restrictions. Three (inner, intermediate and outer) regions of the dynamic meniscus have been combined by using the contact molecular kinetics and hydrodynamics. The combined molecular-HD theory has been validated using the experimental data for the extrapolated dynamic contact angles between a PET surface and glycerol-water mixtures. The analysis showed that the combined theory describes the phenomenon of wetting qualitatively. It was found that the contradiction within the theoretical framework of the molecular kinetics and hydrodynamics hinders the exact description of the wetting phenomenon. (c) 2009 Curtin University of Technology and John Wiley & Soils, Ltd.
Keyword gas-liquid interface
ANGLES
KINETICS
LIQUIDS
SOLIDS
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Chemical Engineering Publications
 
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Created: Thu, 03 Sep 2009, 18:14:58 EST by Mr Andrew Martlew on behalf of School of Chemical Engineering