The electrical and electrorheological properties of grafted polyacene quinone radical polymers dispersed in silicone oil

Author

Yong, Fan ; Xiaoqing, Zhang ; Weiguo, Zhang ; Qingquan, Lei

Author_Institution

Harbin Univ. of Sci. & Technol., China

fYear

1999

fDate

1999

Firstpage

423

Lastpage

425

Abstract

We have reported the electrical and electrorheological (ER) behaviors of before and after grafted polyacene quinone radical (PAQR) polymer-silicone oil composites and found experimentally that the conduction and polarization mechanisms of PAQR is the same before and after being grafted. Also their electrorheological characteristics have no marked change, such as both current-voltage and torque-voltage dependence following a power law. However, the current of ER fluid for grafted PAQR reduces, and the mean shear stress increases. In the temperature ranging from 10°C to 100°C, ER activity of ER fluid for non-grafted PAQR has maximum at certain temperature, while for grafted PAQR it keeps on rising

Keywords

electrorheology; free radicals; insulating oils; non-Newtonian fluids; organic compounds; polymers; silicone insulation; 10 to 100 C; conduction; current-voltage dependence; electrical properties; electrorheological activity; electrorheological characteristics; electrorheological fluid; electrorheological properties; grafted polyacene quinone radical; grafted polyacene quinone radical polymer-silicone oil composites; grafted polyacene quinone radical polymers; mean shear stress; nongrafted polyacene quinone radical; polarization mechanisms; power law; silicone oil; temperature; torque-voltage dependence; Conductivity; Electrodes; Erbium; Permittivity; Petroleum; Polymers; Silicon; Stress; Temperature distribution; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids, 1999. (ICDL '99) Proceedings of the 1999 IEEE 13th International Conference on

Conference_Location

Nara

Print_ISBN

0-7803-4759-5

Type

conf

DOI

10.1109/ICDL.1999.798962

Filename

798962