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Colloidal fibers as structurant for worm-like micellar solutions

Zanchetta, Giuliano ; Mirzaagha, Shadi ; Guida, Vincenzo ; Zonfrilli, Fabio ; Caggioni, Marco ; Grizzuti, Nino ; Pasquino, Rossana ; Trappe, Veronique

In: Colloid and Polymer Science, 2018, vol. 296, no. 8, p. 1379–1385

We investigate the rheological properties of a simplified version of a liquid detergent composed of an aqueous solution of the linear alkylbenzene sulphonate (LAS) surfactant, in which a small amount of fibers made of hydrogenated castor oil (HCO) is dispersed. At the concentration typically used in detergents, LAS is in a worm-like micellar phase exhibiting a Maxwellian behavior. The...