TY - GEN
T1 - Effect of nano-AlO and micro-Al(OH) co-doping on epoxy resin properties
AU - Yu, Shihu
AU - Yu, Xin
AU - Lian, Ze
AU - Wang, Shihang
AU - Nie, Yongjie
AU - Li, Shengtao
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9/6
Y1 - 2020/9/6
N2 - Several abnormal sound or flashover on epoxy tri-post insulator had caused failures of 500kV GIL in Guangdong Power Grid during 2019-2020. Epoxy based inorganic nanocomposites have drawn much interest in the field of electrical equipment. After filling in nanoparticles, the electrical, thermal and mechanical properties of epoxy resin will be increased apparently. With micron fillers in nanocomposites, the interfacial defects of composites could be reduced and thus improve the properties further. In this paper, tensile strength, thermal decomposition, and AC electrical strength of epoxy co-doping composites with different content and size of nano-AlO and micro-Al(OH) fillers were analyzed. The effects of both fillers and co-doping ratio in composites were discussed. It was found that low content of nanoparticles could improve the thermal, mechanical and electrical properties of epoxy. With 10 wt% micron particles, the positive effects of nanoparticles were enhanced, while more micron particles would depress the properties. Smaller micron particles had better effects on micro/nano-composites.
AB - Several abnormal sound or flashover on epoxy tri-post insulator had caused failures of 500kV GIL in Guangdong Power Grid during 2019-2020. Epoxy based inorganic nanocomposites have drawn much interest in the field of electrical equipment. After filling in nanoparticles, the electrical, thermal and mechanical properties of epoxy resin will be increased apparently. With micron fillers in nanocomposites, the interfacial defects of composites could be reduced and thus improve the properties further. In this paper, tensile strength, thermal decomposition, and AC electrical strength of epoxy co-doping composites with different content and size of nano-AlO and micro-Al(OH) fillers were analyzed. The effects of both fillers and co-doping ratio in composites were discussed. It was found that low content of nanoparticles could improve the thermal, mechanical and electrical properties of epoxy. With 10 wt% micron particles, the positive effects of nanoparticles were enhanced, while more micron particles would depress the properties. Smaller micron particles had better effects on micro/nano-composites.
KW - Nanocomposites
KW - co-doping
KW - electrical strength
KW - epoxy resin
KW - tensile strength
UR - https://www.scopus.com/pages/publications/85099399339
U2 - 10.1109/ICHVE49031.2020.9279611
DO - 10.1109/ICHVE49031.2020.9279611
M3 - 会议稿件
AN - SCOPUS:85099399339
T3 - 7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Proceedings
BT - 7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020
Y2 - 6 September 2020 through 10 September 2020
ER -