Journal of Colloid and Interface Science 516 (2018) 182–191 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Regular Article Effect of soluble surfactants on pinch-off of moderately viscous drops and satellite size a,⇑ a,1 b a Nina M. Kovalchuk , Hannah Jenkinson , Reinhard Miller , Mark J.H. Simmons School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, UK Max Planck Institute of Colloids and Interfaces, Potsdam/Golm, Germany graphical a bstract Triton X-100 in water Triton X-100 in 60% Gl_W Triton X-100 in 80 % Gl_W Satellite size increases with concentraon at small viscosies Satellite size decreases with concentraon at large viscosies 0.1 1 10 Concentration, CMC ar ti c l e i nf o ab stra ct Article history: Hypothesis: Surfactant redistribution in a liquid bridge close to drop detachment depends on competition Received 17 November 2017 between the bridge deformation rate and surfactant equilibration rate. Surfactant effect can be different Revised 9 January 2018 in situations when diffusion coefﬁcient changes independently of thinning kinetics or in line with it. Accepted 10 January 2018 Using moderately viscous liquids should allow both situations to be explored experimentally. Available online 11 January 2018 Experiments:
Journal of Colloid and Interface Science – Elsevier
Published: Apr 15, 2018
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