Russian Journal of Applied Chemistry

, Volume 90, Issue 10, pp 1592–1597 | Cite as

Control over Rheological Properties of Powdered Formulations Based on Phosphate-Ammonium Salts and Hydrophobized Silicon Oxide

  • N. B. Kondrashova
  • I. V. Val’tsifer
  • A. Sh. Shamsutdinov
  • A. S. Starostin
  • V. A. Val’tsifer
Inorganic Synthesis and Industrial Inorganic Chemistry

Abstract

Surface of silicon oxide (white black BS-120) was hydrophobized with a polymethylhydrosiloxane solution. IR spectroscopy demonstrated that the hydrophobization process involves free silanol groups of the silicon oxide surface. It was found that a stable superhydrophobic state of the surface is observed upon hydrophobization of silicon oxide, with the wetting angle exceeding 150°. Introduction of hydrophobized silicon oxide into a fire-extinguishing powdered formulation based on ammonium phosphates can improve its rheological characteristics. The influence exerted by the fraction composition of dispersed systems based on phosphorus-ammonium salts on their rheological properties was examined.

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • N. B. Kondrashova
    • 1
  • I. V. Val’tsifer
    • 1
  • A. Sh. Shamsutdinov
    • 1
  • A. S. Starostin
    • 1
  • V. A. Val’tsifer
    • 1
  1. 1.Institute of Technical Chemistry, Ural BranchRussian Academy of SciencesPermRussia

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