Effect of plasma polymer coating on the dielectric strength of polyethylene

T. Nakano, T. Kihira, Yoshimichi Ohki

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

    1 Citation (Scopus)

    Abstract

    The authors have shown previously (1987) that a thin layer of plasma-polymerized ethylene deposited on the surface of high-density polyethylene suppresses the injection of carriers from the electrodes. Here they report the effect of this coating on the dielectric strength of high-density polyethylene. The polyethylene used is additive-free blown film with a density of 0.950 g/cm3 and a melt flow rate of 0.9 g/10 min. The plasma-polymer coated sample studied is shown to have a higher breakdown strength than one without plasma-coating. The plasma-polymerized ethylene is amorphous, with many localized states in the forbidden band. These states act as trapping sites for electrons injected from the cathode. The trapped electrons, in turn, suppress the succeeding carrier injection from the cathode. The trapping centers seem to have an injection-suppressing effect even for the application of short-duration voltages such as impulse voltages. It is concluded that the suppression of electron injection by the coating brings about an increase in breakdown voltage.

    Original languageEnglish
    Title of host publicationProc 3rd Int Conf Conduct Breakdown Solid Dielectr
    Editors Anon
    Place of PublicationPiscataway, NJ, United States
    PublisherPubl by IEEE
    Pages374-376
    Number of pages3
    Publication statusPublished - 1989
    EventProceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics - Trondheim, Norway
    Duration: 1989 Jul 31989 Jul 6

    Other

    OtherProceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics
    CityTrondheim, Norway
    Period89/7/389/7/6

    Fingerprint

    Polyethylenes
    Plasmas
    Coatings
    Polymers
    High density polyethylenes
    Ethylene
    Cathodes
    Electron injection
    Electrons
    Electric potential
    Electric breakdown
    Flow rate
    Electrodes

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Nakano, T., Kihira, T., & Ohki, Y. (1989). Effect of plasma polymer coating on the dielectric strength of polyethylene. In Anon (Ed.), Proc 3rd Int Conf Conduct Breakdown Solid Dielectr (pp. 374-376). Piscataway, NJ, United States: Publ by IEEE.

    Effect of plasma polymer coating on the dielectric strength of polyethylene. / Nakano, T.; Kihira, T.; Ohki, Yoshimichi.

    Proc 3rd Int Conf Conduct Breakdown Solid Dielectr. ed. / Anon. Piscataway, NJ, United States : Publ by IEEE, 1989. p. 374-376.

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

    Nakano, T, Kihira, T & Ohki, Y 1989, Effect of plasma polymer coating on the dielectric strength of polyethylene. in Anon (ed.), Proc 3rd Int Conf Conduct Breakdown Solid Dielectr. Publ by IEEE, Piscataway, NJ, United States, pp. 374-376, Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics, Trondheim, Norway, 89/7/3.
    Nakano T, Kihira T, Ohki Y. Effect of plasma polymer coating on the dielectric strength of polyethylene. In Anon, editor, Proc 3rd Int Conf Conduct Breakdown Solid Dielectr. Piscataway, NJ, United States: Publ by IEEE. 1989. p. 374-376
    Nakano, T. ; Kihira, T. ; Ohki, Yoshimichi. / Effect of plasma polymer coating on the dielectric strength of polyethylene. Proc 3rd Int Conf Conduct Breakdown Solid Dielectr. editor / Anon. Piscataway, NJ, United States : Publ by IEEE, 1989. pp. 374-376
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