The effect of mixing particles of different size on the electrorheological response under steady shear flow |
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| Authors: | Howard See Akiko Kawai Fumikazu Ikazaki |
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| Affiliation: | (1) Department of Chemical Engineering (Bldg. Jo1) The University of Sydney NSW 2006, Australia e-mail: howards@chem.eng.usyd.edu.au, AU;(2) Department of Chemical Systems National Institute of Materials and Chemical Research, 1-1 Higashi Tsukuba, Ibaraki 305-8565, Japan, JP |
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| Abstract: | The effect of mixing particles of different sizes on the electrorheological response of suspensions under steady shear flow was investigated. Two sizes, 15 μm and 50 μm, of monodisperse spherical sulfonated poly(styrene-co-divinylbenzene) particles were used. Several electrorheological fluids were made containing different proportions of small and large particles dispersed in silicone oil, but with constant overall particulate concentration. It was found that the mixed size system produced the highest electrorheological response under the shear rates used (10 s−1 to 500 s−1), which is the opposite trend to previous studies of bimodal systems with larger size ratios. Received: 21 December 2000 Accepted: 29 March 2001 |
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| Keywords: | Electrorheological fluid ERF Particle size distribution |
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