Nanoparticulates at liquid liquid interfaces

被引:70
作者
Bresme, F [1 ]
Quirke, N [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England
关键词
D O I
10.1039/a901006h
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
We analyse using molecular dynamics simulation the wetting behaviour of a particulate of nanometer size at a liquid/liquid interface. Our study shows that Young's equation provides accurate predictions of the contact angles that the particulate makes with the interface. This is found to be the case even for very small particulates whose size (approximate to 15 Angstrom) is approximately the same as the width of the interface. The Line tension is an approximately linear function of the surface tension of the liquid/liquid interface. For the larger particulates studied here the line tensions are positive and of the order 10(-11) N, similar to values obtained from experiment on colloidal particles in the water/air interface.
引用
收藏
页码:2149 / 2155
页数:7
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