Rheological properties of structured fluids

Polymer Engineering and Science - Tập 34 Số 5 - Trang 438-445 - 1994
D. De Kée1, C. F. Chan Man Fong1
1Department of Chemical Engineering, University of Sherbrooke, Sherbrooke, Quebec, J1K 2R1, Canada

Tóm tắt

AbstractThe kinetic theory proposed by Soong and Liu for describing the rheological properties of structured fluids has been extended to predict shear‐thinning, shear‐thickening, thixotropy, and antithixotropy in different ranges of shear rates. Viscoelastic properties, as given by the Gordon‐Schowalter Maxwell model, with a non‐constant modulus, have also been considered. The theoretical predictions are compared with the predictions of a model used by Ait‐Kadi, et al. (1988), for a hydrolyzed polyacrylamide solution containing 20 g/1 of NaCl. the predictions and experimental data for the viscosity and primary normal stress coefficient are in reasonably good agreement. The stress growth functions have also been calculated and have been found to be consistent with experimental observations.

Từ khóa


Tài liệu tham khảo

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Thông tin
Thông tin xuất bản

Polymer Engineering and Science

Tập 34 Số 5

438-445

Thông tin tác giả