Titre :

Fabric Softener–Cellulose Nanocrystal Interaction: A Model for Assessing Surfactant Deposition on Cotton

Auteur(s) :

Oikonomou, E. [Auteur]
Mousseau, F. [Auteur]
Matière et Systèmes Complexes [MSC]
Christov, N. [Auteur]
Systèmes Non Linéaires et à Retards [SyNeR]
Cristobal, G. [Auteur]
Vacher, A. [Auteur]
Airiau, M. [Auteur]
Bourgaux, C. [Auteur]
Institut Galien Paris-Sud [IGPS]
Heux, L. [Auteur]
Centre de Recherches sur les Macromolécules Végétales [CERMAV ]
Berret, Jean-Francois [Auteur]
Matière et Systèmes Complexes [MSC]

Titre de la revue :

Journal of Physical Chemistry B

Pagination :

2299-2307

Éditeur :

American Chemical Society

Date de publication :

2017-03-07

ISSN :

1520-6106

Discipline(s) HAL :

Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]

Résumé en anglais : [en]

There is currently a renewed interest for improving household and personal care formulations to provide more environment friendly products. Fabric conditioners used as softeners have to fulfill a number of stability and ...
Lire la suite >There is currently a renewed interest for improving household and personal care formulations to provide more environment friendly products. Fabric conditioners used as softeners have to fulfill a number of stability and biodegradability requirements. They should also display significant adsorption on cotton in the conditions of use. The quantification of surfactant adsorption remains however difficult because the fabric woven structure is complex and deposited amounts are generally small. Here we propose a method to evaluate cellulose/sur-factant interactions with increased detection sensitivity. The method is based on the use of cellulose nanocrystals in lieu of micron-sized fibers or yarns, combined with different techniques including light scattering, optical and electron microscopy, and electrophoretic mobility. Cellulose nanocrystals are rod-shaped nano-particles in the form of 200 nm laths that are negatively charged and can be dispersed in bulk solutions. In this work, we use a double-tailed cationic surfactant present in fabric softener. Results show that the surfactants self-assemble into unilamellar, multivesicular and multilamellar vesicles, and interaction with cellulose nanocrys-tals is driven by electrostatics. Mutual interactions are strong and lead to the formation of large-scale aggregates, where the vesicles remain intact at the cellulose surface. The technique developed here could be exploited to rapidly assess fabric conditioner efficiency obtained by varying the nature and content of their chemical additives.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Projet ANR :

Université Sorbonne Paris Cité
Science and Engineering for Advanced Materials and devices

Collections :

• Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL