Effect of endothermic reaction associated with glass transition on the breakdown strength of biodegradable polymer films

F. Kato, M. Matsushita, S. Omori, Yoshimichi Ohki

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

    1 Citation (Scopus)

    Abstract

    Effect of endothermic reaction associated with glass transition on the dc and impulse breakdown strength of poly-L-lactic acid (PLLA) and polyethylene terephthalate succinate (PETS) was studied experimentally. Impulse breakdown strength decreases monotonically with an increase in temperature for both PLLA and PETS. However, it increases and shows a hump when the temperature approaches a certain temperature that is slightly lower than the glass transition temperature. Then it decreases again. Moreover, the degree of increment in impulse breakdown strength at this hump depends on the crystallinity of PLLA. In the case of dc breakdown, a similar local maximum as seen in impulse breakdown is not observed. Three possibilities, namely energy absorption and structural change both due to glass transition, and space charge formation, are discussed to explain the experimental results.

    Original languageEnglish
    Title of host publicationAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
    Pages241-244
    Number of pages4
    DOIs
    Publication statusPublished - 2006
    Event2006 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP - Kansas City, MO
    Duration: 2006 Oct 152006 Oct 18

    Other

    Other2006 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
    CityKansas City, MO
    Period06/10/1506/10/18

    Fingerprint

    Biodegradable polymers
    Lactic acid
    Polymer films
    Glass transition
    Polyethylene terephthalates
    Energy absorption
    Electric space charge
    Temperature

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Kato, F., Matsushita, M., Omori, S., & Ohki, Y. (2006). Effect of endothermic reaction associated with glass transition on the breakdown strength of biodegradable polymer films. In Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP (pp. 241-244). [4105414] https://doi.org/10.1109/CEIDP.2006.312106

    Effect of endothermic reaction associated with glass transition on the breakdown strength of biodegradable polymer films. / Kato, F.; Matsushita, M.; Omori, S.; Ohki, Yoshimichi.

    Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2006. p. 241-244 4105414.

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

    Kato, F, Matsushita, M, Omori, S & Ohki, Y 2006, Effect of endothermic reaction associated with glass transition on the breakdown strength of biodegradable polymer films. in Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP., 4105414, pp. 241-244, 2006 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP, Kansas City, MO, 06/10/15. https://doi.org/10.1109/CEIDP.2006.312106
    Kato F, Matsushita M, Omori S, Ohki Y. Effect of endothermic reaction associated with glass transition on the breakdown strength of biodegradable polymer films. In Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2006. p. 241-244. 4105414 https://doi.org/10.1109/CEIDP.2006.312106
    Kato, F. ; Matsushita, M. ; Omori, S. ; Ohki, Yoshimichi. / Effect of endothermic reaction associated with glass transition on the breakdown strength of biodegradable polymer films. Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2006. pp. 241-244
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