Dielectric properties of biodegradable polylactic acid and starch ester

N. Hirai, Y. Maeno, H. Tamura, D. Kaneko, T. Tanaka, Y. Ohki, Y. Tajitsu, M. Kohtoh, S. Okabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Citations (Scopus)

Abstract

In order to examine the applicability of biodegradable polymers to the fields of electrical insulation, several dielectric properties of two typical biodegradable polymers, polylactic acid (PLA) and starch ester (SE), are examined. A fairly larger amount of space charge is accumulated in both polymers in comparison to low-density polyethylene (LDPE). This seems partly due to the presence of hydroxyl and carbonyl groups in these polymers. Permittivity and conductivity are higher in SE than PLA that has the values close to those of LDPE. The dielectric breakdown strength is lower in SE and is higher in PLA than LDPE. As for the resistance to photodegradation by ultraviolet photons, SE is stronger than PLA, although the two are much inferior to LDPE.

Original languageEnglish
Title of host publicationProceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages87-90
Number of pages4
ISBN (Print)0780383486, 9780780383487
DOIs
Publication statusPublished - 2004 Jan 1
EventProceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004 - Toulouse, France
Duration: 2004 Jul 52004 Jul 9

Publication series

NameProceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004
Volume1

Conference

ConferenceProceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004
CountryFrance
CityToulouse
Period04/7/504/7/9

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Hirai, N., Maeno, Y., Tamura, H., Kaneko, D., Tanaka, T., Ohki, Y., Tajitsu, Y., Kohtoh, M., & Okabe, S. (2004). Dielectric properties of biodegradable polylactic acid and starch ester. In Proceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004 (pp. 87-90). [1P-12] (Proceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004; Vol. 1). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/icsd.2004.1350296