Abstract
AbstractPartial 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. © 2009 Wiley Periodicals, Inc. Electr Eng Jpn, 168(2): 1–10, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20807
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
