Efficiency enhancement of decontamination gels by a superabsorbent polymer - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Colloids and Surfaces A: Physicochemical and Engineering Aspects Année : 2014

Efficiency enhancement of decontamination gels by a superabsorbent polymer

Résumé

Physical gels have been studied as an advantageous alternative to traditional decontamination techniques, which most often rely on the use of surfactant solutions. Such physical gels consist of colloidal particles suspended in a decontaminating solution. They can be sprayed over the surfaces to be treated, where they dry and form solid disposable residues. In order to improve their efficiency, the formulation of gels containing superabsorbents (such as sodium polyacrylate) has recently been suggested. But the mechanism accounting for the observed efficiency increase has not yet been investigated. These additives have a large swelling potential in aqueous media and the amount of adsorbed water depends on the presence of salts in the medium. We anticipated that specific ion effects on the swelling behavior of superabsorbent polymers were the driving force of efficiency enhancement and confirmed this assumption by rheology and in situ tests.

Domaines

Chimie
Fichier non déposé

Dates et versions

hal-01275123 , version 1 (16-02-2016)

Identifiants

Citer

Romain Castellani, Arnaud Poulesquen, Frédéric Goettmann, Philippe Marchal, Lionel Choplin. Efficiency enhancement of decontamination gels by a superabsorbent polymer. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2014, 454, pp.89-95. ⟨10.1016/j.colsurfa.2014.04.022⟩. ⟨hal-01275123⟩
197 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More