Volume 63, Number 1, July 2003
|Page(s)||1 - 7|
|Published online||01 June 2003|
A unifying model for chemical and colloidal gels
Dipartimento di Scienze Fisiche, Università di Napoli “Federico II” Complesso Universitario di Monte Sant'Angelo - via Cintia, 80126 Napoli, Italy
2 INFM Udr di Napoli and Gruppo coordinato SUN - Napoli, Italy
3 Dipartimento di Ingegneria dell'Informazione, Seconda Università di Napoli via Roma 29, 81031 Aversa (Caserta), Italy
Accepted: 8 May 2003
We investigate the slow dynamics in gelling systems by means of Monte Carlo simulations on the cubic lattice of a minimal statistical mechanics model. By opportunely varying some model parameter we are able to describe a crossover from the chemical gelation behaviour to dynamics more typical of colloidal systems. The results suggest a novel connection linking classical gelation, as originally described by Flory, to more recent results on colloidal systems.
PACS: 05.20.-y – Classical statistical mechanics / 82.70.Gg – Gels and sols / 47.50.+d – Non-Newtonian fluid flows
© EDP Sciences, 2003
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