HYDRODYNAMIC EFFECTS IN MEASUREMENTS WITH THE DROP VOLUME TECHNIQUE AT SMALL DROP TIMES .2. DROP TIME AND DROP VOLUME BIFURCATIONS

被引：13

作者：

FAINERMAN, VB

MILLER, R

机构：

[1] MAX PLANCK INST KOLLOID & GRENZFLACHENFORSCH,BERLIN,GERMANY

[2] INST TECH ECOL,DONETSK,UKRAINE

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1995年 / 97卷 / 03期

关键词：

DROP TIME; DROP VOLUME BIFURCATIONS; DROP VOLUME TECHNIQUE; HYDRODYNAMIC EFFECTS;

D O I：

10.1016/0927-7757(95)03080-W

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：

Using a specially designed instrument, the formation time of drops at a circular tip of a biconical capillary are measured with high precision. At tip diameters of 5.8 and 7.8 mm and drop formation times lower than 1 s, stable intervals as well as regions of high scattering are observed. At certain liquid flow rates, bifurcations of the measured drop times are observed which are very stable under constant flow conditions. The presence of surfactants (Triton X-165 and sodium dodecyl sulphate) damps the scattering of the data, but bifurcations and splittings of higher order are observed as well. The formation of standing waves between the detaching and residing drop could be a possible qualitative explanation of the data obtained.

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页码：255 / 262

页数：8

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