A solvable interaction site model for lamellar colloids
Department of Chemistry, University of Cambridge
Lensfield Road, Cambridge CB2 1EW, UK
2 INFM and Dipartimento di Fisica, Università di Messina Contrada Papardo, C.P. 50, 98166 Messina, Italy
Accepted: 17 January 2001
Analytic and numerical solutions of a simple interaction site model for uncharged and charged non-intersecting platelets are used to analyze experimental data for the structure factor and the equation of state of Laponite clay suspensions. The model allows for orientational ordering of the platelets. Good agreement with experimental and simulation data is found.
PACS: 61.20.Gy – Theory and models of liquid structure / 82.70.Dd – Colloids / 83.70.Hq – Hetrogeneous liquids: suspensions, dispersions, emulsions, pastes, slurries, foams, block copolymers, etc
© EDP Sciences, 2001