 |
 |
Communication dans un congrès
Evidence of shear-induced polymer release from a swollen gel particle
Abstract : The influence of simple shear flow on the behaviour of an isolated polyelectrolyte hydrogel particle swollen in an aqueous hydroxypropylcellulose solution was studied by rheo-optics. When submitted to a constant shear stress, an initially spherical particle deforms quickly to adopt a stable ellipsoidal form. Upon reaching a first stress threshold, some liquid is released from the particle. This liquid release is determined by a critical deformation value above which the gel cannot retain all of its solvent. At stresses above a second threshold value, small droplets of liquid are secreted from the particle and move away in the flow direction.
https://hal-mines-paristech.archives-ouvertes.fr/hal-00531757
Contributeur : Corinne Matarasso <>
Soumis le : mercredi 3 novembre 2010 - 16:43:04
Dernière modification le : jeudi 24 septembre 2020 - 17:22:54
Contributeur : Corinne Matarasso <>
Soumis le : mercredi 3 novembre 2010 - 16:43:04
Dernière modification le : jeudi 24 septembre 2020 - 17:22:54
Lien texte intégral
