HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Effect of particle interactions on sedimentation field-flow fractionation of a binary suspension

Abstract : The effect of particle interactions on sedimentation field-flow fractionation of a binary suspension is studied on the basis of a phenomenological model. The solvent fluid is regarded as a background medium mediating the effective interactions between solute particles. A binary suspension with large and small particles is considered. Equilibrium profiles of both species are calculated from an approximate expression for the Helmholtz free energy of a hard sphere mixture. The effect of solute particles on suspension viscosity is taken into account via a semi-empirical relationship. It is found that retention factors of both species depend strongly on the two mean volume fractions. The ratio of the two retention factors is nearly independent of the concentration of the large particles and first decreases, but then increases significantly with the concentration of the small ones.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03607714
Contributor : La. Bibliotheque Connect in order to contact the contributor
Submitted on : Monday, March 14, 2022 - 11:00:13 AM
Last modification on : Thursday, April 7, 2022 - 1:58:16 PM

Identifiers

Citation

B. U. Felderhof, M. Martin. Effect of particle interactions on sedimentation field-flow fractionation of a binary suspension. Journal of Chemical Physics, 2003, 119, pp.12011-12016. ⟨10.1063/1.1624824⟩. ⟨insu-03607714⟩

Share

Metrics

Record views

6