Shear thinning in ternary bicontinuous and water‐in‐oil microemulsions

Mark R. Anklam, Robert K. Prud'Homme, Gregory G. Warr

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Shear thinning of ternary microemulsions of didodecyldimethylammonium bromide (DDAB), water, and dodecane in the range 103 to 106 s−1 is documented over a wide range of compositions. A marked transition in the characteristic shear rate is observed accompanying the structural transition from bicontinuous to water‐in‐oil (w/o) droplets as previously reported from diffusion and small‐angle scattering techniques. Results in the w/o region are consistent with those for a dispersion of hard spheres. The shear thinning of the bicontinuous structure, however, occurs at much higher shear rates, implying a shorter time and length scale for disruption of the equilibrium liquid structure by the flow field.

Original languageEnglish (US)
Pages (from-to)677-682
Number of pages6
JournalAIChE Journal
Volume41
Issue number3
DOIs
StatePublished - Mar 1995

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Environmental Engineering
  • Chemical Engineering(all)

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