Competitive adsorption of surfactants at air/water interfaces

被引：14
|
作者：
Graciaa, A
Creux, P
Lachaise, J
Schechter, RS [1 ]
机构：
[1] Univ Texas, Dept Petr & Geosyst Engn, Austin, TX 78712 USA
[2] Grp Syst Disperses, Pau, France
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2003年 / 261卷 / 02期
关键词：
surfactant adsorption; zeta potential; mixed surfactants; air/water interfaces;
D O I：
10.1016/S0021-9797(03)00052-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The zeta potential of an air bubble suspended in an aqueous solution of mixed fluorocarbon and hydrocarbon anionic surfactants is studied over a wide range of concentrations and mixture compositions. The zeta potential is related to surfactant ion adsorption. The two surfactants, which exhibit an antipathy manifested by micellar demixing, compete for surface sites. The total surfactant adsorption is reduced when both surfactants are present. Adsorption phenomena are closely correlated to the micellar phase diagram. (C) 2003 Elsevier Science (USA). All rights reserved.
引用
收藏
页码：233 / 237
页数：5
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