TY - GEN
T1 - AC breakdown strength and glass transition temperature of mesoporous silica/EP composite
AU - Luo, Pan
AU - Wang, Shaohui
AU - Feng, Bing
AU - Mu, Qiulin
AU - Xu, Man
AU - Xu, Yang
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/12/27
Y1 - 2016/12/27
N2 - Epoxy (EP) and EP-based composites are used as insulating materials in several electrical applications. In this work, the mesoporous silica-epoxy (SBA-15/EP) nanocomposite was prepared after surface modification of SBA-15 with a silane coupling agent KH550. Then, SBA-15/EP composite with different weight percentage of SBA-15 was prepared by using the in situ polymerization. Transmission electron microscopy of ultrathin section of the nanocomposites confirmed that some EP molecules were introduced into and partly occupying the nanopores in SBA-15. Subsequently, the dynamic thermomechanical analysis and AC breakdown were employed to research the glass transition and electric property of nanocomposite. Moreover, the dielectric property and space charge of the SBA-15/EP composites was investigated. And the effect of nanopores on the property of composite was discussed. The results confirmed that the glass transition temperature and electrical breakdown strength of the nanocomposite were significantly improved at a low SBA-15 content while the dielectric and space charge property remained comparable with that of pure EP.
AB - Epoxy (EP) and EP-based composites are used as insulating materials in several electrical applications. In this work, the mesoporous silica-epoxy (SBA-15/EP) nanocomposite was prepared after surface modification of SBA-15 with a silane coupling agent KH550. Then, SBA-15/EP composite with different weight percentage of SBA-15 was prepared by using the in situ polymerization. Transmission electron microscopy of ultrathin section of the nanocomposites confirmed that some EP molecules were introduced into and partly occupying the nanopores in SBA-15. Subsequently, the dynamic thermomechanical analysis and AC breakdown were employed to research the glass transition and electric property of nanocomposite. Moreover, the dielectric property and space charge of the SBA-15/EP composites was investigated. And the effect of nanopores on the property of composite was discussed. The results confirmed that the glass transition temperature and electrical breakdown strength of the nanocomposite were significantly improved at a low SBA-15 content while the dielectric and space charge property remained comparable with that of pure EP.
KW - AC breakdown strength
KW - epoxy resin
KW - glass transition temperature
KW - mesoporous silica
UR - https://www.scopus.com/pages/publications/85010378498
U2 - 10.1109/ICHVE.2016.7800792
DO - 10.1109/ICHVE.2016.7800792
M3 - 会议稿件
AN - SCOPUS:85010378498
T3 - ICHVE 2016 - 2016 IEEE International Conference on High Voltage Engineering and Application
BT - ICHVE 2016 - 2016 IEEE International Conference on High Voltage Engineering and Application
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2016
Y2 - 19 September 2016 through 22 September 2016
ER -