Effect of the flow field on the rheological behavior of aqueous cetyltrimethylammonium p-toluenesulfonate solutions

A. J. Müller, M. F. Torres, Avelino E Saez

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

It is well-known that solutions of cetyltrimethylammonium p-toluenesulfonate in water exhibit a pronounced shear-thickening phenomenon in a specific concentration range (0.1-0.8%) when they are subjected to simple-shear flows, as a consequence of flow-induced self-assembly of wormlike micelles. This work shows that a strong elongational flow field (opposed-jets flow), applied to the same solutions, does not lead to extension thickening because the extensional flow prevents or destroys micellar association. In flow through a porous medium, a substantial increase in apparent viscosity is observed beyond a critical apparent shear rate, which surpasses increases observed in simple-shear flows. This is explained as the result of a synergistic effect of shear and relatively weak elongation on the solution microstructure.

Original languageEnglish (US)
Pages (from-to)3838-3841
Number of pages4
JournalLangmuir
Volume20
Issue number10
DOIs
StatePublished - May 11 2004

Fingerprint

Flow fields
flow distribution
Shear flow
shear
shear flow
jet flow
Micelles
Shear deformation
Self assembly
elongation
Porous materials
self assembly
Elongation
micelles
Viscosity
viscosity
microstructure
Microstructure
Water
water

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Effect of the flow field on the rheological behavior of aqueous cetyltrimethylammonium p-toluenesulfonate solutions. / Müller, A. J.; Torres, M. F.; Saez, Avelino E.

In: Langmuir, Vol. 20, No. 10, 11.05.2004, p. 3838-3841.

Research output: Contribution to journalArticle

@article{91de331131254dbf891e769d639c158c,
title = "Effect of the flow field on the rheological behavior of aqueous cetyltrimethylammonium p-toluenesulfonate solutions",
abstract = "It is well-known that solutions of cetyltrimethylammonium p-toluenesulfonate in water exhibit a pronounced shear-thickening phenomenon in a specific concentration range (0.1-0.8{\%}) when they are subjected to simple-shear flows, as a consequence of flow-induced self-assembly of wormlike micelles. This work shows that a strong elongational flow field (opposed-jets flow), applied to the same solutions, does not lead to extension thickening because the extensional flow prevents or destroys micellar association. In flow through a porous medium, a substantial increase in apparent viscosity is observed beyond a critical apparent shear rate, which surpasses increases observed in simple-shear flows. This is explained as the result of a synergistic effect of shear and relatively weak elongation on the solution microstructure.",
author = "M{\"u}ller, {A. J.} and Torres, {M. F.} and Saez, {Avelino E}",
year = "2004",
month = "5",
day = "11",
doi = "10.1021/la0499517",
language = "English (US)",
volume = "20",
pages = "3838--3841",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "10",

}

TY - JOUR

T1 - Effect of the flow field on the rheological behavior of aqueous cetyltrimethylammonium p-toluenesulfonate solutions

AU - Müller, A. J.

AU - Torres, M. F.

AU - Saez, Avelino E

PY - 2004/5/11

Y1 - 2004/5/11

N2 - It is well-known that solutions of cetyltrimethylammonium p-toluenesulfonate in water exhibit a pronounced shear-thickening phenomenon in a specific concentration range (0.1-0.8%) when they are subjected to simple-shear flows, as a consequence of flow-induced self-assembly of wormlike micelles. This work shows that a strong elongational flow field (opposed-jets flow), applied to the same solutions, does not lead to extension thickening because the extensional flow prevents or destroys micellar association. In flow through a porous medium, a substantial increase in apparent viscosity is observed beyond a critical apparent shear rate, which surpasses increases observed in simple-shear flows. This is explained as the result of a synergistic effect of shear and relatively weak elongation on the solution microstructure.

AB - It is well-known that solutions of cetyltrimethylammonium p-toluenesulfonate in water exhibit a pronounced shear-thickening phenomenon in a specific concentration range (0.1-0.8%) when they are subjected to simple-shear flows, as a consequence of flow-induced self-assembly of wormlike micelles. This work shows that a strong elongational flow field (opposed-jets flow), applied to the same solutions, does not lead to extension thickening because the extensional flow prevents or destroys micellar association. In flow through a porous medium, a substantial increase in apparent viscosity is observed beyond a critical apparent shear rate, which surpasses increases observed in simple-shear flows. This is explained as the result of a synergistic effect of shear and relatively weak elongation on the solution microstructure.

UR - http://www.scopus.com/inward/record.url?scp=17144471515&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17144471515&partnerID=8YFLogxK

U2 - 10.1021/la0499517

DO - 10.1021/la0499517

M3 - Article

VL - 20

SP - 3838

EP - 3841

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 10

ER -