Effect of the adsorption component of the disjoining pressure on foam film drainage

Karakashev, Stoyan I., Nguyen, Anh V. and Tsekov, Roumen (2013) Effect of the adsorption component of the disjoining pressure on foam film drainage. Colloid Journal, 75 2: 176-180. doi:10.1134/S1061933X13020099


Author Karakashev, Stoyan I.
Nguyen, Anh V.
Tsekov, Roumen
Title Effect of the adsorption component of the disjoining pressure on foam film drainage
Journal name Colloid Journal   Check publisher's open access policy
ISSN 1061-933X
1608-3067
Publication date 2013-04
Sub-type Article (original research)
DOI 10.1134/S1061933X13020099
Volume 75
Issue 2
Start page 176
End page 180
Total pages 5
Place of publication Moscow, Russian Federation
Publisher M A I K Nauka - Interperiodica
Collection year 2014
Language eng
Abstract The present work is trying to explain a discrepancy between experimental observations of the drainage of foam films from aqueous solutions of sodium dodecylsulfate and the theoretical DLVO-accomplished Reynolds model. It is shown that, due to overlap of the film adsorption layers, an adsorption component of the disjoining pressure is important for the present system. The pre-exponential factor of this adsorption component was obtained by fitting to the experimental drainage curves. It corresponds to a slight repulsion, which reduces not only the thinning velocity as observed experimentally but corrects also the film equilibrium thickness.
Keyword Foam films
Aqueous solutions
Sodium dodecylsulfate
Repulsion
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2014 Collection
 
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