Effect of sodium dodecyl sulfate on flow and electrokinetic properties of Na-activated bentonite dispersions

E. Günister, S. Işçi, A. Alemdar, N. Güngör*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

The present study reports the effect of anionic surfactant sodium dodecyl sulfate (SDS, C12H25 OSO3Na) upon the electrokinetic (electrophoretic mobility, zeta potential) and rheological (viscosity, yield value) properties of the Ca-bentonitic clay found in Turkey and its Na-activated form. The SDS dispersant was added in different concentrations in the range of 1 × 10-5-5 × 10 -2 mol/l. The results show that the viscosity and zeta potential values of bentonite dispersion are affected by the addition of anionic surfactant. The obtained data are analysed by considering the kind of exchangeable cations. Thixotropic property effect was observed in bentonite dispersions.

Original languageEnglish
Pages (from-to)317-322
Number of pages6
JournalBulletin of Materials Science
Volume27
Issue number3
DOIs
Publication statusPublished - Jun 2004

Keywords

  • Anionic surfactant
  • Bentonite
  • Rheology
  • Sodium dodecyl sulfate
  • Zeta potential

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