Rheological behaviour and shear thickening exhibited by aqueous CTAB micellar solutions

Shear-induced structures formed during thixotropic loops in dilute worm-micelle solutions

“…Micellar solutions were prepared by weight. Measurements were made at least three days after the solution preparation to allow them to reach equilibrium [20]. To assure that the solution was above the critical micelle concentration (CMC), we determined it.…”

Influence of Surfactant Concentration and Counterion to Surfactant Ratio on Rheology of Wormlike Micelles

“…Using small-angle neutron light scattering (SANS) under shear, they saw a nematic phase manifested by the growth of crescent-like scattering patterns in the direction perpendicular to the flow. Rehage and Hoffmann (10), Cressely and Hartmann (11), and Ali and Makhloufi (12) observed that the zero shear viscosity first increased with concentration, reaching a maximum, and then decreased. Other studies, like those of Imae et al (13) and Hu et al (14), have shown the different effects for strongly binding counterions like NaSal and weakly binding counterions like NaBr.…”

Elongational deformation of wormlike micellar solutions

“…A fundamental understanding of material properties as well as the ability to predict changes that occur within the material during processing is extremely important for industrial application. Investigations so far mainly focused on the shear-banding phenomenon [Britton and Callaghan (1997); Britton and Callaghan (1999); Haward and McKinley (2012); Fischer and Challaghan (2001); Salmon et al (2003)], shear-thickening even in dilute solutions [Hu and Matthys (1995); Cappelaere et al (1994); Hartmann and Cressely (1997a); Hartmann and Cressely (1997b); Hartmann and Cressely (1997c); Cressely and Hartmann (1998); Hartmann and Cressely (1998); Wheeler et al (1998); Hu et al (1998); Nowak (2001); Berret and Serero (2001); Azzouzi et al (2005); Vasudevan et al (2008)] and the corresponding shear-induced structure (SIS) [Wheeler et al (1996); Kadoma et al (1997); Ouchi et al (2006a); Ouchi et al (2006b)] using different techniques such as turbidity [Yamamoto and Taniguchi (2012); Schubert et al (2004); Lerouge et al (2008); Herle et al (2005)], flow birefringence [Dehmoune et al (2007); Berret et al (2002); Wunderlich et al (1987); Oda et al (1997); Ouchi et al (2006b)], light scattering [Liu and Pine (1996); Boltenhagen et al (1997)], cryo transmission electron microscopy (cryo-TEM) [Oda et al (1997); Lu et al (1998)], particle image velocimetry …”