The study of aggregate stability of monodisperse silica sol in NaCl solutions

  • E. Golikova Saint Petersburg State Technological University of Plant Polymers (SPb STUPP) , St. Petersburg
  • N. Novikova Saint Petersburg State Technological University of Plant Polymers (SPb STUPP) , St. Petersburg
  • Yu. Chernoberezhskii Saint Petersburg State University, St. Petersburg
DOI: https://doi.org/10.15328/chemb_2012_3112-117
Keywords: kinetics of aggregation, reversible aggregation, flow ultramicroscopy, monodisperse silica sol

Abstract

By flow ultramicroscopy method the kinetics of aggregation of monodisperse silica sol (with a size 250 nanometers) in aqueous solutions NaCl at pH 6.2, 9.0 and 10.2 has been investigated. It was established that slow coagulation of sol SiO2 proceeds on barrierless mechanism in the distant potential minimum resulting from predominance of structural forces of repulsion on dispersion forces of an attraction.

References

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Published
2012-09-25
How to Cite
Golikova, E., Novikova, N., & Chernoberezhskii, Y. (2012). The study of aggregate stability of monodisperse silica sol in NaCl solutions. Chemical Bulletin of Kazakh National University, 67(3), 112-117. https://doi.org/https://doi.org/10.15328/chemb_2012_3112-117
Issue
Vol 67 No 3 (2012): Chemical Bulletin of Kazakh National University
Section
Colloid and Nano Chemistry
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