Direct measurements of particle-bubble interactions

被引:77
作者
Gillies, G [1 ]
Kappl, M [1 ]
Butt, HJ [1 ]
机构
[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
关键词
interaction force; colloid probe technique; AFM; flotation; surface force;
D O I
10.1016/j.cis.2004.08.003
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 essence of mineral flotation is the formation of strong particle-bubble aggregates. Hydrodynamics and DLVO forces hinder the particle-bubble approach however the presence of a hydrophobic surface results in hydrophobic attraction and strong aggregate formation. In this article we review literature where the colloid probe technique has been used to investigate flotation, primarily particle-bubble interactions in aqueous solution. In some instance particles-bubble interactions have used to quantify the hydrophobic force, whilst hydrophobic forces are crucial for particle-bubble attachment, studies of hydrophobic forces are not the main focus of this article. (c) 2005 Elsevier B.V All rights reserved.
引用
收藏
页码:165 / 172
页数:8
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