Abstract
Partial discharge (PD) resistance was examined by applying a constant voltage to four different biodegradable polymers-poly-L-lactic acid (PLLA), polyethylene terephthalate succinate (PETS), poly ε-caprolactone butylene succinate (PCL-BS), and polybutylene succinate (PBS)-and the results were compared with those of low-density polyethylene (LDPE) and crosslinked low-density polyethylene (XLPE). The PD resistance is determined by the erosion depth and the surface roughness caused by PDs, and is ranked as LDPE ≈?XLPE > PLLA ≈?PETS > PBS > PCL-BS. This means that the sample with a lower permittivity has better PD resistance. Furthermore, examination of the sample surfaces by a polarization microscope and a laser confocal microscope reveals that the PD resistance of crystalline regions with spherulites is higher than that of amorphous regions. Therefore, good PD resistance can be achieved by the sample with a high crystallinity and a low permittivity.
| Original language | English |
|---|---|
| Pages (from-to) | 1-10 |
| Number of pages | 10 |
| Journal | Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi) |
| Volume | 168 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2009 Jul 30 |
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Keywords
- Biodegradable polymer
- Dielectric aging
- Electrical insulation
- Partial discharge
- Surface degradation
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Energy Engineering and Power Technology
Cite this
Partial discharge degradation of several biodegradable polymers. / Fuse, Norikazu; Fujita, Shinjiro; Hirai, Naoshi; Tanaka, Toshikatsu; Kozako, Masahiro; Kohtoh, Masanori; Okabe, Shigemitsu; Ohki, Yoshimichi.
In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi), Vol. 168, No. 2, 30.07.2009, p. 1-10.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Partial discharge degradation of several biodegradable polymers
AU - Fuse, Norikazu
AU - Fujita, Shinjiro
AU - Hirai, Naoshi
AU - Tanaka, Toshikatsu
AU - Kozako, Masahiro
AU - Kohtoh, Masanori
AU - Okabe, Shigemitsu
AU - Ohki, Yoshimichi
PY - 2009/7/30
Y1 - 2009/7/30
N2 - Partial discharge (PD) resistance was examined by applying a constant voltage to four different biodegradable polymers-poly-L-lactic acid (PLLA), polyethylene terephthalate succinate (PETS), poly ε-caprolactone butylene succinate (PCL-BS), and polybutylene succinate (PBS)-and the results were compared with those of low-density polyethylene (LDPE) and crosslinked low-density polyethylene (XLPE). The PD resistance is determined by the erosion depth and the surface roughness caused by PDs, and is ranked as LDPE ≈?XLPE > PLLA ≈?PETS > PBS > PCL-BS. This means that the sample with a lower permittivity has better PD resistance. Furthermore, examination of the sample surfaces by a polarization microscope and a laser confocal microscope reveals that the PD resistance of crystalline regions with spherulites is higher than that of amorphous regions. Therefore, good PD resistance can be achieved by the sample with a high crystallinity and a low permittivity.
AB - Partial discharge (PD) resistance was examined by applying a constant voltage to four different biodegradable polymers-poly-L-lactic acid (PLLA), polyethylene terephthalate succinate (PETS), poly ε-caprolactone butylene succinate (PCL-BS), and polybutylene succinate (PBS)-and the results were compared with those of low-density polyethylene (LDPE) and crosslinked low-density polyethylene (XLPE). The PD resistance is determined by the erosion depth and the surface roughness caused by PDs, and is ranked as LDPE ≈?XLPE > PLLA ≈?PETS > PBS > PCL-BS. This means that the sample with a lower permittivity has better PD resistance. Furthermore, examination of the sample surfaces by a polarization microscope and a laser confocal microscope reveals that the PD resistance of crystalline regions with spherulites is higher than that of amorphous regions. Therefore, good PD resistance can be achieved by the sample with a high crystallinity and a low permittivity.
KW - Biodegradable polymer
KW - Dielectric aging
KW - Electrical insulation
KW - Partial discharge
KW - Surface degradation
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UR - http://www.scopus.com/inward/citedby.url?scp=68149131312&partnerID=8YFLogxK
U2 - 10.1002/eej.20807
DO - 10.1002/eej.20807
M3 - Article
VL - 168
SP - 1
EP - 10
JO - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
JF - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
SN - 0424-7760
IS - 2
ER -