[KSCI] Korea Science Citation Index Service

Electrical and Rheological Properties of Chitosan Malonate Suspension

Choi, Ung-su (Tribology Center KIST)

Publication Information

KSTLE International Journal / v.4, no.1, 2003 , pp. 14-17 More about this Journal

Abstract

The electrical and rheological properties of a chitosan malonate suspension in silicone oil was investigated by varying the electric fields, volume fractions of particles, and shear rates, respectively, The chitosan malonate susepnsion showed a typical electrorheological (ER) response caused by the polarizability of an amide polar group and shear yield stress due to the formation of multiple chains upon application of an electric field. The shear stress fur the suspension exhibited a linear dependence on the volume fraction and an electric field power of 1.88. On the basis of the experimental results, the newly synthesized chitosan malonate suspension was found to be an anhydrous ER fluid.

Keywords

ER fluid; chitosan malonate; amide group; polarization model;

Citations & Related Records

Reference

1	Conrad, H. and Chen, Y., Electrorheological properties and the Strength of Electrorheological Fluids, Progress in Electrorheology, edited by K. O. Havelka and F. E. Filisko (Plenum Press, New York), pp. 55-65, 1995
2	Choi, U. S., Electrorheological Properties of Chitosan Suspension, Colloids and Surfaces, Vol. 157, pp. 193-202, 1999 DOI ScienceOn
3	Jee, H. S., Ko, Y. K., Lee, S. S. and Choi, U. S., Electrorheological Properties of Chitosan Phosphate Suspension, J. Ind. Eng. Chem., Vol. 11, pp. 605-609, 2000
4	Winslow, W. M., Induced Fibration of Suspension, J. Appl. Phys., Vol. 20, pp. 1137-1140, 1949 DOI
5	Klingberg, D. J. and Zukoski, C. F., Studies on the SteadyShear Behavior of Electrorheological Suspensions, Langmuir, Vol. 6, pp. 15-24, 1990 DOI
6	Uejima, H., Dielectric Mechanism and Rheological Properties of Electro-Fluids, Jpn. J. Appl. Phys., Vol.11, pp. 319-326, 1972 DOI
7	Gow, C. J. and Zukoski, C. F., The Electrorheological Properties of Polyaniline Suspension, J. Colloid Interface Sci., Vol. 136, pp. 175-188, 1990 DOI ScienceOn
8	Block, H. and Kelly, J. P., Materials and Mechanism In Elecrrorheology, Langmuir, Vol. 6, pp. 6-14, 1990 DOI
9	Davis, L. C., Polarization forces and conductivity effects in electrorheological fluids, J. Appl, Phys. Vol. 72, pp. 1334-1340, 1992 DOI
10	Conrad, H., Chen, Y. and Sprecher, A., The strength of electrorheological fluids, J. of Modn. Phys. B, Vol. 16, pp. 2575-2583, 1992
11	Bloodworth, R. and Wendt, E., Electrorheological Effect of Polyurethan Suspension, Progress in Electrorheology, edited by K.O. Havelka and F. E. Filisko (Plenum Press, New York), pp. 185-192, 1995
12	Block, H. and Kelly, J. P., Electrorheology, J. Phys. D: Appl. Phys., Vol. 21, pp. 1661-1667, 1988 DOI ScienceOn
13	Li, Y., Chen, Y. and Conrad, H., Effect of Strain Rate in the Quas-Static Regime on the Strength of Electrorheological Fluids, ASME, Vol. 235, pp. 29-36, 1995