Enhanced charge trapping in bimodal brush functionalized silica-epoxy nanocomposite dielectrics

Author

Krentz, Timothy M. ; Yanhui Huang ; Nelson, J.K. ; Schadler, Linda S. ; Bell, Michael ; Benicewicz, Brian ; Su Zhao ; Hillborg, Henrik

Author_Institution

Dept. of Mater. Sci. & Eng., Rensselaer Polytech. Inst., Troy, NY, USA

fYear

2014

fDate

19-22 Oct. 2014

Firstpage

643

Lastpage

646

Abstract

This manuscript details the processing, and investigates the dielectric properties, of surface ligand engineered epoxy nanocomposites. They display significant improvements in dielectric breakdown strength (DBS). Thermally stimulated depolarization current (TSDC) measurements and pulsed electroacoustic analysis (PEA) results are used to investigate space charge evolution and trapping. These techniques reveal the potential underlying phenomena behind the DBS enhancement.

Keywords

electric breakdown; electric current measurement; electric strength; epoxy insulation; nanocomposites; pulsed electroacoustic methods; DBS enhancement; PEA; TSDC measurements; bimodal brush functionalized silica-epoxy nanocomposite dielectrics; dielectric breakdown strength; enhanced charge trapping; pulsed electroacoustic analysis; surface ligand engineered epoxy nanocomposites; thermally stimulated depolarization current measurements; Dielectrics; Electrodes; Nanoparticles; Polymers; Satellite broadcasting; Silicon compounds; Space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena (CEIDP), 2014 IEEE Conference on

Conference_Location

Des Moines, IA

Type

conf

DOI

10.1109/CEIDP.2014.6995891

Filename

6995891