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Ernest Carl McIntyre, Frank E. Filisko
Squeeze Flow Rheology of Zeolite Suspensions
Appl. Rheol. 19:4 (2009) 44322 (8 pages)
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Aggregation, heterogeneous flows, and complex particle geometries all pose challenges in rheology. This paper uses squeeze
flow rheometry techniques to examine a case, where all of these played a role. The applicability of some squeeze theories is
tested, and the ability to predict results based on suspension theories is examined. The squeeze flow data is shown to deviate
from Stefan's Law [Stefan J, Sitz. Kais. Akad. Wiss. Math. Nat. Wien 69 (1874) 713-735].
The suspension rheology deviated from predicted theory, but by taking into account particle effects
such as aggregation the fit to the empirical Maron-Pierce equation [Maron SH and PE Pierce, J.
Coll. Sci. 11 (1956) 80-95] could be understood. The conclusions of this study
show how using only squeeze flow techniques the synergistic nature of these effects can be better understood.
► Cite this publication as follows:
McIntyre EC, Filisko FE: Squeeze Flow Rheology of Zeolite Suspensions, Appl. Rheol. 19 (2009) 44322.
Todd J. Menna, Frank E. Filisko, Rachel A. Lynch
Effect of Electric Fields on the Rheological Properties of the Isotropic Phase of phic/p-Xylene Solutions
Appl. Rheol. 15:3 (2005) 172-176
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The effect of high ac electric fields upon a liquid crystalline polymer solution, poly(n-hexyl isocyanate) in p-xylene,
is examined. The results show that the solutions exhibit an increase in rheological properties proportional
to the strength of the field at concentrations well below those exhibiting liquid crystalline behavior. The effects
of frequency and field strength are examined as a means to explain this previously unreported phenomenon.
► Cite this publication as follows:
Menna TJ, Filisko FE, Lynch RA: Effect of Electric Fields on the Rheological Properties of the Isotropic Phase of phic/p-Xylene Solutions, Appl. Rheol. 15 (2005) 172.
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