Surfactant mediated particle aggregation in nonpolar solvents

Mojtaba Farrokhbin 1, 2 Biljana Stojimirović 1 Marco Galli 1 Mohsen Khajeh Aminian 2 Yannick Hallez 3 Gregor Trefalt
1 Université de Genève (SWITZERLAND)
2 Yazd Shahid Sadoughi University of Medical Sciences - SSU (IRAN) (1)
3 LGC - Laboratoire de génie chimique [ancien site de Basso-Cambo]
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 surfactant 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.
Keywords : Surfactant Aggregation Colloids nonpolar solvant
Document type :
Journal articles
Complete list of metadatas

Cited literature [66 references]  Display  Hide  Download
https://hal.archives-ouvertes.fr/hal-02354135
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Thursday, November 7, 2019 - 3:52:59 PM
Last modification on : Saturday, November 9, 2019 - 1:33:06 AM

File

Farrrokhbin_24354.pdf
Files produced by the author(s)

Identifiers

Collections

UNIV-TLSE3 | CNRS

Citation

Mojtaba Farrokhbin, Biljana Stojimirović, Marco Galli, Mohsen Khajeh Aminian, Yannick Hallez, et al.. Surfactant mediated particle aggregation in nonpolar solvents. Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2019, 35, pp.18866-18876. ⟨10.1039/c9cp01985e⟩. ⟨hal-02354135⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

6

Files downloads

13

Contact

CCSD