Croatica Chemica Acta, Vol. 52 No. 2, 1979.
Conference paper
On the Stabilizing Effect of Surfactants Adsorption Layers
E. A. Amelina
; Moscow Lomonosov State University, Moscow, USSR
A. M. Parfenova
; Moscow Lomonosov State University, Moscow, USSR
V. V. Yaminskiy
; Moscow Lomonosov State University, Moscow, USSR
E. D. Shchukin
; Moscow Lomonosov State University, Moscow, USSR
Abstract
Cohesion forces in contacts of discrete spherical particles
(having either hydrophilic or hydrophobic surface) were measured
directly in aqueous or heptane solutions. It is shown that the stabilizing
action of tensides in the hydrophobic particle system was
brought about by a two-dimensional pressure of the adsorbed
tenside which is easily removed · from the contact zone of the
particle. The stabilizing action of tensides in the hydrophilic particle
systems is a consequence of the formation of a mechanical barrier
which has a high apparent strength due to the adsorbed layer on the
solid surface.
Keywords
Hrčak ID:
195904
URI
Publication date:
25.6.1979.
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