Investigation of reversible Brownian flocculation and intradoublet coalescence in o/w emulsions by means of video enhanced microscopy

被引:18
作者
Holt, O
Saether, O
Sjoblom, J
Dukhin, SS
Mishchuk, NA
机构
[1] Univ Bergen, Dept Chem, N-5007 Bergen, Norway
[2] Natl Acad Sci Ukraine, Inst Colloid & Water Chem, UA-252180 Kiev, Ukraine
关键词
oil-in-water emulsion; dilute emulsion; singlet-doublet system; reversible flocculation; intradoublet coalescence; video enhanced microscopy;
D O I
10.1016/S0927-7757(98)00369-0
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
A theory of reversible flocculation in dilute monodisperse emulsions together with an intradoublet coalescence is proposed and compared with experimental data obtained through video enhanced microscopy. The averaged values of the coalescence time and the doublet disintegration time are obtained by means of this method. The difficulty caused by time variation in the toluene droplet electrokinetic potential is discussed. The perspective to improve both theory and experiment is discussed as well. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:269 / 278
页数:10
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