Phase Separation in Bimodal Dispersions of Sterically Stabilized Silica Particles
J. S. van Duijneveldt; A. W. Heinen; H. N. W. Lekkerkerker; J. S. van Duijneveldt; Van't Hoff Laboratorium, Rijksuniversiteit Utrecht, Padualaan 8, NL-3584 CH Utrecht, The Netherlands; A. W. Heinen; Van't Hoff Laboratorium, Rijksuniversiteit Utrecht, Padualaan 8, NL-3584 CH Utrecht, The Netherlands; H. N. W. Lekkerkerker; Van't Hoff Laboratorium, Rijksuniversiteit Utrecht, Padualaan 8, NL-3584 CH Utrecht, The Netherlands
Журнал:
EPL (Europhysics Letters)
Дата:
1993-01-20
Аннотация:
Binary mixtures of suspended, nearly hard-sphere, sterically stabilized colloidal silica particles of diameter ratio 6 were observed to phase-separate at comparable volume fractions of the two particle species. The occurrence of phase separation as a function of the particle concentrations was studied visually and by small-angle light scattering. The results support recent predictions by Biben and Hansen.
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