Extension of the working temperature range of magnetic fluid susceptibility measurements

被引：2
|
作者：
Lebedev, A., V [1 ]
Lysenko, S. N. [2 ]
机构：
[1] UB RAS, Inst Continuous Media Mech, Korolev Str 1, Perm 614013, Russia
[2] UB RAS, Inst Tech Chem, Perm 614013, Russia
来源：
MAGNETISM AND MAGNETIC MATERIALS V | 2012年 / 190卷
基金：
俄罗斯基础研究基金会;
关键词：
Magnetic fluid; Low Temperatures; Susceptibility; Fractionation; Coagulation;
D O I：
10.4028/www.scientific.net/SSP.190.649
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Tests have been carried out to measure the temperature dependence of static susceptibility of a magnetic fluid stabilized with polypropylene glycol (PPG) in propanol, ethyl ether and propylene oxide. The use of propylene oxide provides the widest temperature range for measurements of fluid susceptibility. The coagulation stability of the PPG-stabilized magnetic fluid against ethylene glycol and 1,4-butylene glycol is investigated. It has been shown that ethylene glycol can be used to separate PPG magnetic fluid into fractions. The fluid separation begins as soon as the volumetric fraction of ethylene glycol exceeds 30%. Butylene glycol is unsuitable for fractionation but can be used to remove excess surfactant - PPG.
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页码：649 / +
页数：2
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