Thin film drainage: hydrodynamic and disjoining pressures determined from experimental measurements of the shape of a fluid drop approaching a solid wall

Langmuir : the ACS Journal of Surfaces and Colloids
Roger G HornJason N Connor

Abstract

Accurate measurements of the shape of a mercury drop separated from a smooth flat solid surface by a thin aqueous film reported recently by Connor and Horn (Faraday Discuss. 2003, 123, 193-206) have been analyzed to calculate the excess pressure in the film. The analysis is based on calculating the local curvature of the mercury/aqueous interface, and relating it via the Young-Laplace equation to the pressure drop across the interface, which is the difference between the aqueous film pressure and the known internal pressure of the mercury drop. For drop shapes measured under quiescent conditions, the only contribution to film pressure is the disjoining pressure arising from double-layer forces acting between the mercury and mica surfaces. Under dynamic conditions, hydrodynamic pressure is also present, and this is calculated by subtracting the disjoining pressure from the total film pressure. The data, which were measured to investigate the thin film drainage during approach of a fluid drop to a solid wall, show a classical dimpling of the mercury drop when it approaches the mica surface. Four data sets are available, corresponding to different magnitudes and signs of disjoining pressure, obtained by controlling the surface pot...Continue Reading

References

Aug 16, 2000·Journal of Colloid and Interface Science·E KlaseboerO Masbernat
Sep 6, 2000·Physical Review Letters·T Pompe, S Herminghaus
Mar 18, 2003·Faraday Discussions·Jason N Connor, Roger G Horn
Mar 23, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Steven L CarnieRaymond R Dagastine

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Citations

Dec 25, 2009·Journal of Colloid and Interface Science·Deniz Z GunesAdam S Burbidge
May 1, 2007·Journal of Biomechanics·Sameer JadhavCharles D Eggleton
Sep 8, 2015·Advances in Colloid and Interface Science·Wei WangJing Gong
Nov 14, 2015·Biomechanics and Modeling in Mechanobiology·Hiren D BalsaraCharles D Eggleton
Feb 13, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Lei XieHongbo Zeng
Jul 9, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Lorena A Del CastilloRoger G Horn
Jun 8, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Christian W J BerendsenAnton A Darhuber
Oct 10, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Kan DuA D Dinsmore
Nov 12, 2016·Soft Matter·Damith P Rozairo, Andrew B Croll
Feb 14, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Lei XieHongbo Zeng
Feb 9, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Lei XieHongbo Zeng
Aug 14, 2020·Soft Matter·Emmanouil ChatzigiannakisJan Vermant
Feb 21, 2008·Soft Matter·Derek Y C ChanRoger G Horn
Dec 6, 2018·Journal of Colloid and Interface Science·S J Miklavcic, C Fung
Jul 28, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Rogério ManicaDerek Y C Chan
Jun 15, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Liraz Chai, Jacob Klein
Feb 12, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Vassili V YaminskyRoger G Horn
May 6, 2021·ACS Applied Materials & Interfaces·Soumyadip SettNenad Miljkovic
Jul 27, 2021·Journal of Colloid and Interface Science·Wenjie LanShaowei Li
Feb 9, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Md Hemayet UddinRaymond R Dagastine
Feb 29, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Chun Yong NgLiguang Wang
Dec 4, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Yunrui HanXiaoming Luo
Jan 11, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Rogério ManicaDerek Y C Chan

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