Space charge distributions in epoxy/MgO nanocomposites at various temperatures

Q. Xie; Y. H. Cheng; Naoshi Hirai; Yoshimichi Ohki

doi:10.1109/ICHVE.2016.7800636

Space charge distributions in epoxy/MgO nanocomposites at various temperatures

Q. Xie, Y. H. Cheng, Naoshi Hirai, Yoshimichi Ohki

Kagami Memorial Research Institute for Materials Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

10 Citations (Scopus)

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	https://doi.org/10.1109/ICHVE.2016.7800636
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

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

Access to Document

10.1109/ICHVE.2016.7800636

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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

Xie, Q, Cheng, YH, Hirai, N & Ohki, Y 2016, Space charge distributions in epoxy/MgO nanocomposites at various temperatures. in ICHVE 2016 - 2016 IEEE International Conference on High Voltage Engineering and Application., 7800636, Institute of Electrical and Electronics Engineers Inc., 5th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2016, Chengdu, China, 16/9/19. https://doi.org/10.1109/ICHVE.2016.7800636

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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.",

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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.

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