Document Detail

Foam film permeability: theory and experiment.
MedLine Citation:
PMID:  17905142     Owner:  NLM     Status:  PubMed-not-MEDLINE    
The mass transfer of gas through foam films is a prototype of various industrial and biological processes. The aim of this paper is to give a perspective and critical overview of studies carried out to date on the mass transfer of gas through foam films. Contemporary experimental data are summarized, and a comprehensive overview of the theoretical models used to explain the observed effects is given. A detailed description of the processes that occur when a gas molecule passes through each layer that forms a foam film is shown. The permeability of the film-building surfactant monolayers plays an important role for the whole permeability process. It can be successfully described by the models used to explain the permeability of surfactant monolayers on aqueous sub-phase. For this reason, the present paper briefly discusses the surfactant-induced resistance to mass transfer of gases through gas-liquid interface. One part of the paper discusses the experimental and theoretical aspects of the foam film permeability in a train of foam films in a matrix or a cylinder. This special case is important to explain the gas transfer in porous media or in foams. Finally, this paper will highlight the gaps and challenges and sketch possible directions for future research.
R Farajzadeh; R Krastev; Pacelli L J Zitha
Publication Detail:
Type:  Journal Article     Date:  2007-09-05
Journal Detail:
Title:  Advances in colloid and interface science     Volume:  137     ISSN:  0001-8686     ISO Abbreviation:  Adv Colloid Interface Sci     Publication Date:  2008 Feb 
Date Detail:
Created Date:  2008-01-28     Completed Date:  2008-06-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8706645     Medline TA:  Adv Colloid Interface Sci     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  27-44     Citation Subset:  -    
Delft University of Technology, Department of Geotechnology, Stevinweg 1, 2628 CN Delft, The Netherlands.
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