Abstract
The effect of addition of nano-sized magnesia fillers to epoxy resin on the distribution of space charges is examined at various temperatures from 40 to 200 °C. Although the spatial distribution of space charges in the sample varies depending on temperature and filler content, magnesia nanocomposites exhibit a smaller amount of homocharge near the cathode than the unfilled epoxy resin at 40 and 80 °C. At 120 and 140 °C, although the polarity of space charge in the vicinity of the cathode becomes positive or hetero, its amount becomes smaller with the increase in content of magnesia nanofillers. This finding agrees well with the fact that magnesia nanofillers effectively suppress the formation of space charge in low-density or crosslinked polyethylene. As another distinctive feature, it has become clear that the addition of magnesia nanofillers effectively suppresses carrier transport, especially at high temperatures.
| Original language | English |
|---|---|
| Title of host publication | ICHVE 2016 - 2016 IEEE International Conference on High Voltage Engineering and Application |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781509004966 |
| DOIs | |
| Publication status | Published - 2016 Dec 27 |
| Event | 5th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2016 - Chengdu, China Duration: 2016 Sep 19 → 2016 Sep 22 |
Other
| Other | 5th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2016 |
|---|---|
| Country | China |
| City | Chengdu |
| Period | 16/9/19 → 16/9/22 |
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Keywords
- dielectric peroperty
- electric modulus
- epoxy resin
- magnesium oxide
- nanocomposite
- space charge
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Cite this
Space charge distributions in epoxy/MgO nanocomposites at various temperatures. / Xie, Q.; Cheng, Y. H.; Hirai, Naoshi; Ohki, Yoshimichi.
ICHVE 2016 - 2016 IEEE International Conference on High Voltage Engineering and Application. Institute of Electrical and Electronics Engineers Inc., 2016. 7800636.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Space charge distributions in epoxy/MgO nanocomposites at various temperatures
AU - Xie, Q.
AU - Cheng, Y. H.
AU - Hirai, Naoshi
AU - Ohki, Yoshimichi
PY - 2016/12/27
Y1 - 2016/12/27
N2 - The effect of addition of nano-sized magnesia fillers to epoxy resin on the distribution of space charges is examined at various temperatures from 40 to 200 °C. Although the spatial distribution of space charges in the sample varies depending on temperature and filler content, magnesia nanocomposites exhibit a smaller amount of homocharge near the cathode than the unfilled epoxy resin at 40 and 80 °C. At 120 and 140 °C, although the polarity of space charge in the vicinity of the cathode becomes positive or hetero, its amount becomes smaller with the increase in content of magnesia nanofillers. This finding agrees well with the fact that magnesia nanofillers effectively suppress the formation of space charge in low-density or crosslinked polyethylene. As another distinctive feature, it has become clear that the addition of magnesia nanofillers effectively suppresses carrier transport, especially at high temperatures.
AB - The effect of addition of nano-sized magnesia fillers to epoxy resin on the distribution of space charges is examined at various temperatures from 40 to 200 °C. Although the spatial distribution of space charges in the sample varies depending on temperature and filler content, magnesia nanocomposites exhibit a smaller amount of homocharge near the cathode than the unfilled epoxy resin at 40 and 80 °C. At 120 and 140 °C, although the polarity of space charge in the vicinity of the cathode becomes positive or hetero, its amount becomes smaller with the increase in content of magnesia nanofillers. This finding agrees well with the fact that magnesia nanofillers effectively suppress the formation of space charge in low-density or crosslinked polyethylene. As another distinctive feature, it has become clear that the addition of magnesia nanofillers effectively suppresses carrier transport, especially at high temperatures.
KW - dielectric peroperty
KW - electric modulus
KW - epoxy resin
KW - magnesium oxide
KW - nanocomposite
KW - space charge
UR - http://www.scopus.com/inward/record.url?scp=85010375242&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85010375242&partnerID=8YFLogxK
U2 - 10.1109/ICHVE.2016.7800636
DO - 10.1109/ICHVE.2016.7800636
M3 - Conference contribution
AN - SCOPUS:85010375242
BT - ICHVE 2016 - 2016 IEEE International Conference on High Voltage Engineering and Application
PB - Institute of Electrical and Electronics Engineers Inc.
ER -