Title :
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
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;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2014 IEEE Conference on
Conference_Location :
Des Moines, IA
DOI :
10.1109/CEIDP.2014.6995891
