Title :
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
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;
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
DOI :
10.1109/ICDL.1999.798962
