Document Detail


The Effect of Evaporation on Wilhelmy-Type Measurements of Wetting Tension: Is Wetting Equilibrium Reached for Cationic Surfactant Adsorption on Mica?
MedLine Citation:
PMID:  9241227     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The effect of lowering of the liquid level by evaporation on the measured values of the advancing wetting tension is calculated and is shown to be able to account for most of the change with time of the advancing wetting tension in an earlier paper (L. G. T. Eriksson et al., J. Colloid Interface Sci. 181, 476 (1996)) concerned with the adsorption of hexadecyltrimethylammonium bromide (CTAB) on mica, using rates of evaporation ( approximately 0.07 mm/h) measured for that setup. With stricter evaporation control, the wetting tension hysteresis is still large after 15 h of equilibration, and it is not possible, on that time scale, to record the approach to equilibrium of the advancing contact angle for the system CTAB/mica.
Authors:
Eriksson
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Publication Detail:
Type:  JOURNAL ARTICLE; JOURNAL ARTICLE    
Journal Detail:
Title:  Journal of colloid and interface science     Volume:  191     ISSN:  1095-7103     ISO Abbreviation:  J Colloid Interface Sci     Publication Date:  1997 Jul 
Date Detail:
Created Date:  1997-08-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0043125     Medline TA:  J Colloid Interface Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  264-7     Citation Subset:  -    
Affiliation:
Department of Chemistry, Royal Institute of Technology, Stockholm, SE-100 44, Sweden
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