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A rheological model for iron oxide suspensions
Author(s) -
Lin YihShen,
Liu TaJo,
Chu NingJo
Publication year - 1991
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1991.070420633
Subject(s) - rheology , suspension (topology) , cyclohexanone , materials science , viscometer , viscosity , chemical engineering , composite material , polymer chemistry , chemistry , organic chemistry , mathematics , homotopy , pure mathematics , engineering , catalysis
We have examined the rheological properties of a Co‐adsorbed γ‐Fe 2 O 3 magnetic suspension with polyurethane (PU) as a binder and methyl ethyl ketone (MEK) or cyclohexanone (CH) as a solvent. A Haake RV20 viscometer was used to measure the suspension viscosity and the vane method was adopted to determine the fluid yield stress. A rheological model which can be viewed as a combination of the Casson model and the Bingham model is proposed to describe the suspension viscosity. The effects of temperature, particle content, and binder concentration are included in the model.