BEHAVIOR OF ANIONIC SURFACTANT MICELLES IN THE PRESENCE OF Al3+AND Ca2+
作者:
FedericoI. Talens-Alesson,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 1999)
卷期:
Volume 20,
issue 7
页码: 1861-1871
ISSN:0193-2691
年代: 1999
DOI:10.1080/01932699908943895
出版商: Taylor & Francis Group
关键词: micelle;ζ-potential;adsorption;Schulze-Hardy;flocculation
数据来源: Taylor
摘要:
The estimation of the C-potential of ionic surfactant micelles may be useful for the study of adsorption of solutes onto the micellar surface, which causes a reduction of the net electrostatic charge. This work presents results on the variation of ζ-potential of alkylsulfate and fatty carboxylate micelles with the bulk concentrations of Al3+and Ca2+cations. Combined with results from the literature about the effect of micellar surfactant concentration on reducing surfactant precipitation in the presence of polyvalent cations, these allow to conclude that micelles of anionic surfactants will have a higher chance of electroneutralization of their surface charge by adsorbing cations if the end functional group of the surfactant is smaller.
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