Conference paper

Adsorption of Surfactants on Mineral Solids

E. D. Goddard ; Union Carbide Corporation, Tarrytown, New York, and Henry Krumb, School of Mines, Columbia University, New York
P. Somasundaran ; Union Carbide Corporation, Tarrytown, New York, and Henry Krumb, School of Mines, Columbia University, New York

Abstract

Factors influendng 1he adsorption of ionic surfactants on solids
are outlined. Emphasis is placed on the role of electrostatic forces
and of lateral association within adsorbed layers. MechanLsms
leading to charge gene.ration on solids are descdbed, and the dependence of adsorption on charge effects i's mustrated by reference to
published data on a number of different solid surfactan:t systems.
It is shown how the electrostatic factor can be strongly modified ·
by the presence of inorganic salts. The importance of chain-chain
interactions is illustrated by the influence of chains length and
composition on adsorption, and also by the pH dependence of the
adsorption of long chain, weak electrolytes. This leads to a discussion
of the possible role of highly surface active long chain
complexes. Lastly, the influence of polymers on the adsorption
of surfactants is discussed.

Keywords

Hrčak ID:

196438

URI

https://hrcak.srce.hr/196438

Publication date:

22.12.1976.

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