Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2001-10-15
Physics
Condensed Matter
Statistical Mechanics
9 pages, 2 figures (included), Physica A (2001) to appear
Scientific paper
10.1016/S0378-4371(01)00526-X
We investigate polydispersity effects on the average structure factor of colloidal suspensions of neutral particles with surface adhesion. A sticky hard sphere model alternative to Baxter's one is considered. The choice of factorizable stickiness parameters in the potential allows a simple analytic solution, within the ``mean spherical approximation'', for any number of components and arbitrary stickiness distribution. Two particular cases are discussed: i) all particles have different sizes but equal stickiness (Model I), and ii) each particle has a stickiness proportional to its size (Model II). The interplay between attraction and polydispersity yields a markedly different behaviour for the two Models in regimes of strong coupling (i.e. strong adhesive forces and low temperature) and large polydispersity. These results are then exploited to reanalyze experimental scattering data on sterically stabilized silica particles.
Gazzillo Domenico
Giacometti Achille
No associations
LandOfFree
Polydisperse fluid mixtures of adhesive colloidal particles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Polydisperse fluid mixtures of adhesive colloidal particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polydisperse fluid mixtures of adhesive colloidal particles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-621619