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Investigation of the structuring in the Sol-Gel systems based on tetraethoxysilane

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Abstract

The kinetics of change in the dynamic and structural viscosity of a number of silica sols based on tetraethoxysilane, including sols doped with aluminum and cobalt nitrates, is investigated. The results obtained are analyzed in the framework of the Derjaguin-Landau-Verwey-Overbeek theory. It is revealed that structural forces make a considerable contribution to the stability and structuring processes in these systems. The structuring in a rapidly gelating homogeneous heterophase dispersion formed by finely dispersed α-Al2O3 particles in the silica sol doped with aluminum and cobalt nitrates is examined, and the assumptions regarding the mechanism of the structuring processes occurring in this system are made.

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Authors and Affiliations

  1. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, ul. Odoevskogo 24/2, St. Petersburg, 199155, Russia

    T. V. Khamova, O. A. Shilova & E. V. Golikova

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  1. T. V. Khamova
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  2. O. A. Shilova
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  3. E. V. Golikova
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Original Russian Text © T.V. Khamova, O.A. Shilova, E.V. Golikova, 2006, published in Fizika i Khimiya Stekla.

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Khamova, T.V., Shilova, O.A. & Golikova, E.V. Investigation of the structuring in the Sol-Gel systems based on tetraethoxysilane. Glass Phys Chem 32, 448–459 (2006). https://doi.org/10.1134/S1087659606040092

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