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Scientific article
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English

Surfactant mediated particle aggregation in nonpolar solvents

Published inPhysical Chemistry Chemical Physics, vol. 21, no. 35, p. 18866-18876
Publication date2019
Abstract

The aggregation behavior of particles in nonpolar media is studied with time-resolved light scattering. At low surfactant concentrations particles are weakly charged and suspensions are not stable. The suspensions become progressively more stable with increasing urfactant concentration as particles become more highly charged. At high concentrations the particles become neutralized and aggregation is again fast. The theory of Derjaguin, Landau, Verwey, and Overbeek (DLVO) is able to predict the stability ratios quantitatively by using the experimentally measured surface charges, screening lengths and van der Waals forces.

Research group
Funding
  • Swiss National Science Foundation - 162420
Citation (ISO format)
FARROKHBIN, Mojtaba et al. Surfactant mediated particle aggregation in nonpolar solvents. In: Physical Chemistry Chemical Physics, 2019, vol. 21, n° 35, p. 18866–18876. doi: 10.1039/C9CP01985E
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Article (Accepted version)
Identifiers
ISSN of the journal1463-9076
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Technical informations

Creation10/11/2019 9:45:00 AM
First validation10/11/2019 9:45:00 AM
Update time03/15/2023 6:09:07 PM
Status update03/15/2023 6:09:06 PM
Last indexation02/12/2024 11:43:35 AM
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