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Correlation between PVT behavior and the zero‐shear viscosity of liquid mixtures

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1122/1.549911
AuthorSearch for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
Abstract
Simha's statistical thermodynamics theory, based on the cell/hole model, provides an excellent description of liquid properties in the full range of reduced variables P̃, Ṽ, and T̃. In addition, it provides the occupied site fraction y as a function of these reduced variables. Recently, the theory was rigorously extended to homogeneous liquid mixtures. During the last few years, an attempt was made to correlate the zero‐shear viscosity η with Y≡1/(1−y). Y≡1/(1−y). The Y as a function of temperature T and pressure P was computed from Simha's theory for n‐paraffins (C ₅ to C ₁ ₈), oligomers (polybutene‐1 and silicone oils), and polymers (poly(dimethyl siloxane), polystyrene, poly(methyl methacrylate), polyethylenes, polypropylene, etc.). It was found that the temperature‐ and pressure‐dependent zero‐shear viscosity η of these liquids is a function of Y(T,P). In the present work the method is being extended to mixtures of n‐paraffins.
Publication date
PublisherAIP
In
  • Journal of Rheology 30, no. 4: 829–841.
LanguageEnglish
Peer reviewedYes
NRC numberCNRC 25401
NRC-IGM 86-502-272
NPARC number23004047
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Record identifier1acc1b77-047c-4ad8-9ed7-9d9d1da415f7
Record created2018-09-19
Record modified2020-03-17
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