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Rheological characterization of shear-thinning fluids with a novel viscosity equation of a tank-tube viscometer

Authors
Kwon, K.C.Park, Y.K.Floyd, T.Vahdat, N.Jackson, E.Jones, P.
Issue Date
2007
Publisher
Kerschensteiner Verlag GmbH
Keywords
Newtonian viscosity equation for a tank-tube viscometer; Non-Newtonian viscosity equation for a tank-tube viscometer; Polyethylene oxide aqueous solutions; Shear-thinning fluids; Sucrose aqueous solution; Tank-tube viscometer
Citation
Applied Rheology, v.17, no.5, pp.51413 - 1-51413-9
Journal Title
Applied Rheology
Volume
17
Number
5
Start Page
51413
End Page
1-51413-9
URI
https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/24184
DOI
10.1515/arh-2007-0016
ISSN
1430-6395
Abstract
A tank-tube viscometer and its novel viscosity equation were developed to determine flow characteristics of non-Newtonian fluids. The objective of this research is to test capabilities of the tank-tube viscometer and its novel non-Newtonian viscosity equation by characterizing rheological behaviors of well-known polyethylene oxide (MW 8000000) aqueous solutions as non-Newtonian fluids with 60-w% sucrose aqueous solution as a reference calibration fluid. Non-Newtonian characteristics of 0.3-0.7 wt% polyethylene oxide aqueous solutions were extensively investigated with the tank-tube viscometer and its non-Newtonian viscosity equation over the 294-306 K temperature range, and 55-784 s-1 shear rate range. The 60-w% sucrose aqueous solution was used asa reference /calibration fluid for the tank-tube viscometer. Dynamic viscosity values of 60w% sucrose aqueous solution were determined with the calibrated tank-tube viscometer and its Newtonian viscosity equation at 299.15 K, and compared with the literature values. © Appl. Rheol.
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