| Issue |
Europhys. Lett.
Volume 40, Number 6, December II 1997
|
|
|---|---|---|
| Page(s) | 691 - 696 | |
| Section | Cross-disciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i1997-00524-7 | |
| Published online | 01 September 2002 | |
Simple salts effects on the characteristics of the shear thickening exhibited by an aqueous micellar solution of CTAB/NaSal
Laboratoire de Physique des Liquides et des Interfaces,
Groupe Rhéophysique des Colloïdes
Université de Metz, 1 Bd. F. Arago, 57070 Metz, France
Corresponding author: Cressely@lpli.univ-metz.fr
Received:
5
May
1997
Accepted:
30
October
1997
In this experimental work we investigate the effect of the
addition of simple salts such as 
, NaBr, NaCl, NaF on the
rheological behaviour of an aqueous micellar solution of CTAB 0.1 M with NaSal
at the concentration of 0.019 M. Experimental results indicate that the
rheological characteristics of the solution CTAB/NaSal exhibiting shear
thickening (critical shear rate corresponding to the occurrence of the shear-induced
structure, amplitude of the phenomenon, slope corresponding to the
shear thinning evolution following the maximum viscosity) are progressively,
but differently affected by the addition of the inorganic salts. The effect of
only a simple screening of electrostatic interactions is shown by the addition
of small amounts of NaF.
PACS: 82.70.Dd – Colloids / 83.85.Cg – Rheological measurements / 83.50.Qm – Thixotropy; thickening flows
© EDP Sciences, 1997
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