Quartz crystal microbalance as a device to measure the yield stress of colloidal suspensions

被引：4

作者：

Botha, Johannes A. ^{[1
]}

Ding, Wei ^{[1
]}

Hunter, Timothy N. ^{[1
]}

Biggs, Simon ^{[2
]}

Mackay, Graham A. ^{[3
]}

Cowley, Robin ^{[4
]}

Woodbury, Simon E. ^{[5
]}

Harbottle, David ^{[1
]}

机构：

[1] Univ Leeds, Sch Chem & Proc Engn, Leeds, W Yorkshire, England

[2] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia

[3] NNL Workington Lab, Workington, Cumbria, England

[4] Sellafield Ltd, Analyt Serv, Sellafield, Cumbria, England

[5] NNL Cent Lab, Sellafield, Cumbria, England

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2018年 / 546卷

基金：

英国工程与自然科学研究理事会;

关键词：

Quartz crystal microbalance; Suspension rheology; Colloids; MAGNESIUM-HYDROXIDE; FREQUENCY-SHIFTS; THERMAL-DECOMPOSITION; MINERAL SUSPENSIONS; PARTICLE; LIQUID; VANE; NANOPARTICLES; DEPOSITION; RHEOMETRY;

D O I：

10.1016/j.colsurfa.2018.03.005

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 application of quartz crystal microbalance (QCM) as a device to measure the rheology of colloidal suspensions has been studied. Using a commercial dip-probe QCM, the yield stress of magnesium hydroxide suspensions has been correlated to the resonance properties of a 5 MHz AT-cut quartz sensor. A stable resonance baseline was first established in air before submerging the sensor into the colloidal suspension. The response of the sensor resistance was shown to correlate to changes in the suspension yield stress, while the frequency response was found to result from more complex contact mechanics and suspension viscoelasticity contributions. Since the QCM is a relatively simple technique with no mechanically moving parts, this approach offers the potential for rapid in situ rheology assessment.

引用

页码：179 / 185

页数：7

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