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Electrorheology of Amine Dispersant Coated Chitosan Phosphate Suspension  

Choi, Ung-su (Tribology center, Korea Institute of Science and Technoloty)
Ko, Young-gun (Tribology center, Korea Institute of Science and Technoloty)
Publication Information
KSTLE International Journal / v.3, no.1, 2002 , pp. 23-25 More about this Journal
Abstract
The electrorheological (ER) behavior of amino coated chitosan phosphate suspension in silicone oil is investigated. Amino coated chitosan phosphate suspension shows a typical ER response (Bingham flow behavior) upon application of an electric field due to the polarizability of phosphoryl polar group. The shear stress for the suspension exhibits a linear dependence on an electric field power of 1.94. The values of structure factors $A_s$obtains 2 far mine coated chitosan phosphate suspension and it may be due to the formation of multiple chains upon application of the electric field. Throughtout the experimental results, amino coated chitosan phosphate suspension shows good dispersion stability and found to be an anhydrous ER fluid.
Keywords
Electrorheological fluid; amine coated chitosan phosphate; structure factor;
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