Phase diagrams of polydisperse van der Waals fluids

被引:50
作者
Bellier-Castella, L [1 ]
Xu, H
Baus, M
机构
[1] Univ Lyon 1, Dept Phys Mat, CNRS, UMR 5586, F-69622 Villeurbanne, France
[2] Free Univ Brussels, B-1050 Brussels, Belgium
关键词
D O I
10.1063/1.1316007
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The phase behavior of a system composed of spherical particles with a monomodal size distribution is investigated theoretically within the context of the van der Waals approximation for polydisperse fluids. It is shown how the binodals, spinodals, cloud-point and shadow curves as well as all the (polydispersity induced) critical points can be obtained for a variety of interaction potentials. The polydispersity induced modifications of the phase diagram (even for a polydispersity index I as small as I approximate to1.01) should be observable in some colloidal dispersions. (C) 2000 American Institute of Physics. [S0021-9606(00)51842-X].
引用
收藏
页码:8337 / 8347
页数:11
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