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The Instability of Silica Sol in Concentrated Solutions of Triton X100

✍ Scribed by V.L. Alexeev

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
316 KB
Volume
206
Category
Article
ISSN
0021-9797

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✦ Synopsis

An excess of nonionic surfactant, Triton X100, in the continuous phase of silica sol has strong consequences on the stability of silica dispersions. Beyond full coverage, the surfactant may give rise to the formation of either fractal or dense aggregates. The structure of aggregates has been studied through SAXS. It has been demonstrated that hydration of the components is an essential ingredient which influences the interparticle interactions. Some comparisons with current theoretical models developed for depletion flocculation are made. Copyright 1998 Academic Press.

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