TY - GEN
T1 - Effect of Na+on Molecular Relaxation of Epoxy/Alumina Resin Composites
AU - Gao, Yafang
AU - Li, Mingru
AU - Li, Shengtao
AU - Kun, Wang
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - Epoxy resin is an insulating material widely used in high-voltage electrical equipment, and Na+ is one of the main impurity ions in epoxy resin. In this research, we added different mass fraction Na+ into epoxy/alumina composites. After that, we measured the gel time, glass transition temperature and broadband dielectric spectrum. Besides, we used H-N function to fit the data of dielectric spectrum,used VFT function to calculate the activation energy of macromolecular chains. The gel time data showed that Na+ can promote the gelation of epoxy composite castables. The glass transition temperature proved that Na+ can promote crosslinking. The calculation results of dielectric fitting showed that Na+ can increase the activation energy of macromolecular chains and increases the intensity of ion ionization. This research reveal the effect of Na+ on molecular relaxation in epoxy composites and provide reference for the control of Na+ content in epoxy composites.
AB - Epoxy resin is an insulating material widely used in high-voltage electrical equipment, and Na+ is one of the main impurity ions in epoxy resin. In this research, we added different mass fraction Na+ into epoxy/alumina composites. After that, we measured the gel time, glass transition temperature and broadband dielectric spectrum. Besides, we used H-N function to fit the data of dielectric spectrum,used VFT function to calculate the activation energy of macromolecular chains. The gel time data showed that Na+ can promote the gelation of epoxy composite castables. The glass transition temperature proved that Na+ can promote crosslinking. The calculation results of dielectric fitting showed that Na+ can increase the activation energy of macromolecular chains and increases the intensity of ion ionization. This research reveal the effect of Na+ on molecular relaxation in epoxy composites and provide reference for the control of Na+ content in epoxy composites.
KW - Molecular chain
KW - composite insulation materials
KW - dielectric properties
KW - epoxy resin
KW - impurity ions
UR - https://www.scopus.com/pages/publications/85125108360
U2 - 10.1109/CIYCEE53554.2021.9676937
DO - 10.1109/CIYCEE53554.2021.9676937
M3 - 会议稿件
AN - SCOPUS:85125108360
T3 - 2021 IEEE 2nd China International Youth Conference on Electrical Engineering, CIYCEE 2021
BT - 2021 IEEE 2nd China International Youth Conference on Electrical Engineering, CIYCEE 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE China International Youth Conference on Electrical Engineering, CIYCEE 2021
Y2 - 15 December 2021 through 17 December 2021
ER -