TY - GEN
T1 - Surface flashover in vacuum and bulk breakdown in polystyrene nanocomposites
AU - Li, Shengtao
AU - Wang, Weiwang
AU - Ni, Fengyan
AU - Yin, Guilai
PY - 2011
Y1 - 2011
N2 - Nano-sized Al2O3 and TiO2 particles are mixed with polystyrene to prepare specimens, respectively. In this paper, the dielectric relaxation spectroscopy, breakdown strength and surface flashover voltage in vacuum of nanocomposites were investigated. Both breakdown strength and flashover voltage first increase, then decrease with increasing the fillers loading. They are also dependent on applied field waveform. However, permittivity shows a decrease at slight filler loading, and then increases. According to the experimental results, specimens with lower permittivity have higher electric strength. The permittivity, breakdown strength and surface flashover are close related to the interaction zone between nanoparticle and polymeric matrix. Moreover, it should be emphasized that there is a certain relationship between bulk electric strength and surface flashover voltage.
AB - Nano-sized Al2O3 and TiO2 particles are mixed with polystyrene to prepare specimens, respectively. In this paper, the dielectric relaxation spectroscopy, breakdown strength and surface flashover voltage in vacuum of nanocomposites were investigated. Both breakdown strength and flashover voltage first increase, then decrease with increasing the fillers loading. They are also dependent on applied field waveform. However, permittivity shows a decrease at slight filler loading, and then increases. According to the experimental results, specimens with lower permittivity have higher electric strength. The permittivity, breakdown strength and surface flashover are close related to the interaction zone between nanoparticle and polymeric matrix. Moreover, it should be emphasized that there is a certain relationship between bulk electric strength and surface flashover voltage.
KW - breakdown strength
KW - flashover voltage
KW - interaction zone
KW - permittivity
KW - polystyrene nanocomposites
UR - https://www.scopus.com/pages/publications/84903463827
U2 - 10.1109/iseim.2011.6826319
DO - 10.1109/iseim.2011.6826319
M3 - 会议稿件
AN - SCOPUS:84903463827
SN - 9784886860743
SN - 9784886860743
T3 - Proceedings of the International Symposium on Electrical Insulating Materials
SP - 486
EP - 490
BT - Proceedings of 2011 International Conference on Electrical Insulating Materials, ISEIM 2011
PB - Institute of Electrical Engineers of Japan
T2 - 2011 International Conference on Electrical Insulating Materials, ISEIM 2011
Y2 - 6 September 2011 through 11 September 2011
ER -