Electrical properties of a thermoplastic polyurethane filled with titanium dioxide nanoparticles

G. Polizos, E. Tuncer, H. Koerner, M. K. Kidder, R. A. Vaia, I. Sauers, D. R. James, A. R. Ellis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this study we report a nanodielectric system composed of pre-synthesized nanoparticles embedded in an elastomer. Nanoparticles of titanium dioxide were synthesized in an aqueous solution of titanium chloride and polyethylene glycol. The nanoparticles were blended in a twin screw extruder with a thermoplastic, polyurethane (Morthane PS455-203), to form nanodielectrics at three different weight fractions of titanium dioxide. Impedance spectroscopy was employed to study polymer dynamics and the influence of nanoparticles on relaxation. The segmental relaxation associated with the glass transition of the polyurethane matrix, and the local relaxations associated with short range motions of polar groups were investigated at wide ranges of frequency (20 Hz-1 MHz) and temperature (300-20 K). The dielectric breakdown strength of the nanodielectrics was also measured to characterize their insulating properties and their potential for use in high voltage applications.

Original languageEnglish
Title of host publicationProceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010
Pages460-461
Number of pages2
DOIs
StatePublished - 2010
Event2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010 - Atlanta, GA, United States
Duration: May 23 2010May 27 2010

Publication series

NameProceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010

Conference

Conference2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010
Country/TerritoryUnited States
CityAtlanta, GA
Period05/23/1005/27/10

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