The multipass rheometer
作者:
M. R. Mackley,
R. T. J. Marshall,
J. B. A. F. Smeulders,
期刊:
Journal of Rheology
(AIP Available online 1995)
卷期:
Volume 39,
issue 6
页码: 1293-1309
ISSN:0148-6055
年代: 1995
DOI:10.1122/1.550637
出版商: The Society of Rheology
关键词: Instrumentation, rheological;Viscoelasticity;Viscometry;Pressure effects, on viscoelastic properties;PISTONS;POLYMERS;SILICONES;SOLUTIONS;VISCOSIMETERS
数据来源: AIP
摘要:
This article describes the technical performance and initial results for a new, two‐piston, ‘‘multipass rheometer.’’ Fluid is contained within a capillary by two servo‐hydraulically controlled pistons. Both steady flow and oscillatory data can be obtained from the device with mean pressure as an independent adjustable variable. Steady and oscillatory data are presented for a silicone oil and a viscoelastic solution and certain data are compared with results obtained from a Rheometrics RDS‐II mechanical spectrometer or with literature data. The results show that the multipass rheometer is capable of extending the experimental ranges of many conventional rheometers, particularly in terms of pressure control, high shear rates, and multiple, successive flow measurements.
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