Effects of mica nanofillers on the complex permittivity of polyamide nanocomposites

N. Fuse, H. Sato, T. Tanaka, Yoshimichi Ohki

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

    5 Citations (Scopus)

    Abstract

    Effects of nanofiller loading on the carrier transport and molecular motion in polyamide-6/mica nanocomposites were discussed by analyzing their complex permittivity spectra. As a result, the following four dielectric polarization processes were observed; space charge polarization, a relaxation due to dipolar orientation, and ß relaxation due to rotation of amide groups bonded with water molecules, in addition to interfacial polarization at crystalline/ amorphous boundaries. The enhancement of dielectric constant and that of loss factor due to abundance of mobile charge carriers are suppressed by the nanofiller loading. These results suggest that carrier transport is suppressed by the nanofillers. Furthermore, it was found that relaxation time becomes longer by the mica nanofiller loading both for the dipolar orientation and for the rotation of amide groups. Molecular motion is considered to be restricted in nano-composites, which indicates a strong interaction between the resin and filler.

    Original languageEnglish
    Title of host publicationAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
    Pages540-543
    Number of pages4
    DOIs
    Publication statusPublished - 2008
    Event2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2008 - Quebec City, QC
    Duration: 2008 Oct 262008 Oct 29

    Other

    Other2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2008
    CityQuebec City, QC
    Period08/10/2608/10/29

    Fingerprint

    Nylons
    Mica
    Polyamides
    Nanocomposites
    Permittivity
    Carrier transport
    Polarization
    Amides
    Charge carriers
    Electric space charge
    Relaxation time
    Fillers
    Resins
    Crystalline materials
    Molecules
    Water
    Composite materials
    mica

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

    Cite this

    Fuse, N., Sato, H., Tanaka, T., & Ohki, Y. (2008). Effects of mica nanofillers on the complex permittivity of polyamide nanocomposites. In Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP (pp. 540-543). [4772784] https://doi.org/10.1109/CEIDP.2008.4772784

    Effects of mica nanofillers on the complex permittivity of polyamide nanocomposites. / Fuse, N.; Sato, H.; Tanaka, T.; Ohki, Yoshimichi.

    Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2008. p. 540-543 4772784.

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

    Fuse, N, Sato, H, Tanaka, T & Ohki, Y 2008, Effects of mica nanofillers on the complex permittivity of polyamide nanocomposites. in Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP., 4772784, pp. 540-543, 2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2008, Quebec City, QC, 08/10/26. https://doi.org/10.1109/CEIDP.2008.4772784
    Fuse N, Sato H, Tanaka T, Ohki Y. Effects of mica nanofillers on the complex permittivity of polyamide nanocomposites. In Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2008. p. 540-543. 4772784 https://doi.org/10.1109/CEIDP.2008.4772784
    Fuse, N. ; Sato, H. ; Tanaka, T. ; Ohki, Yoshimichi. / Effects of mica nanofillers on the complex permittivity of polyamide nanocomposites. Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2008. pp. 540-543
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    abstract = "Effects of nanofiller loading on the carrier transport and molecular motion in polyamide-6/mica nanocomposites were discussed by analyzing their complex permittivity spectra. As a result, the following four dielectric polarization processes were observed; space charge polarization, a relaxation due to dipolar orientation, and {\ss} relaxation due to rotation of amide groups bonded with water molecules, in addition to interfacial polarization at crystalline/ amorphous boundaries. The enhancement of dielectric constant and that of loss factor due to abundance of mobile charge carriers are suppressed by the nanofiller loading. These results suggest that carrier transport is suppressed by the nanofillers. Furthermore, it was found that relaxation time becomes longer by the mica nanofiller loading both for the dipolar orientation and for the rotation of amide groups. Molecular motion is considered to be restricted in nano-composites, which indicates a strong interaction between the resin and filler.",
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