An Investigation of the Effect of the Addition of Hydrophobic Silica Nanoparticles on the Colloidal Stability of Inverse Emulsions

The results of experimental studies of the effect of the addition of silica nanoparticles on the stability of inverse emulsions based on mineral oils have been presented. The concentration of nanoparticles in the emulsion varied from 0.25 to 2 wt %. The ratios of the volume fractions of the hydrocar...

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Bibliographic Details
Published inTechnical physics letters Vol. 47; no. 10; pp. 766 - 769
Main Authors Mikhienkova, E. I., Minakov, A. V., Lysakov, S. V., Neverov, A. L., Pryazhnikov, M. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.10.2021
Springer Nature B.V
Subjects
Classical and Continuum Physics
Destabilization
Emulsions
Fractions
Hydrophobicity
Mineral oils
Nanoparticles
Physics
Physics and Astronomy
Silicon dioxide
Stability
colloidal stability
emulsion
nanoparticles
stability
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Summary:The results of experimental studies of the effect of the addition of silica nanoparticles on the stability of inverse emulsions based on mineral oils have been presented. The concentration of nanoparticles in the emulsion varied from 0.25 to 2 wt %. The ratios of the volume fractions of the hydrocarbon phase and water 70/30, 80/20, and 90/10 have been studied. Several types of emulsifiers have been considered. It has been shown that hydrophobic SiO 2 nanoparticles significantly improve the stability of inverse emulsions even in small concentrations. The rate of destabilization of the emulsion has been reduced by 1.7 times by the addition of 2 wt % of nanoparticles.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785021080095