Electrorheology of cellulose phosphate ester suspension as a new anhydrousER fluid

The electrorheological (ER) behaviour of the cellulose phosphate ester susp ension in silicone oil was investigated. Cellulose phosphate ester suspensi on showed a typical ER response (Bingham flow behaviour) upon application o f an electric field. The shear stress for the cellulose phosphate ester sus pension exhibited a linear dependence on the volume fraction of particles a nd the dependence with a factor equal to 1.41 power on the electric field. The experimental results for the cellulose phosphate ester suspension corre lated with the conduction model of Tang et al., and this suspension behaved as an ER fluid. (C) 2000 Elsevier Science B.V. All rights reserved.