Dielectric properties of biodegradable polylactic acid and starch ester

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

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

13 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
Pages87-90
Number of pages4
Volume1
Publication statusPublished - 2004
EventProceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004 - Toulouse
Duration: 2004 Jul 52004 Jul 9

Other

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

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ASJC Scopus subject areas

  • Engineering(all)

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 (Vol. 1, pp. 87-90)