The effect of multi-wall carbon nanotube morphology on electrical and mechanical properties of polyurethane nanocomposites

Jatin Sethi, Essi Sarlin, Seyyed Shayan Meysami, Reija Suihkonen, Arunjunai Raja Shankar Santha Kumar, Mari Honkanen, Pasi Keinänen, Nicole Grobert, Jyrki Vuorinen

    Tutkimustuotos: ArtikkeliTieteellinenvertaisarvioitu

    34 Sitaatiot (Scopus)

    Abstrakti

    In this study, we examine the effect of multi-wall carbon nanotubes (MWCNT) morphology on electrical and mechanical properties of MWCNT-filled polyurethane (PU) nanocomposites. The main objective of this study is to understand the role of aspect ratio and length of MWCNTs in determining the performance of nanocomposites. Highly aligned MWCNTs were prepared by aerosol-assisted chemical vapour deposition method and compared to commercially available MWCNTs in PU matrix for ease of dispersibility and performance. We observed opposing influence of the MWCNT on electrical and mechanical behaviour of the nanocomposites. The electrical properties were proportional to length of the MWCNTs whereas the mechanical properties were dependent on the aspect ratio of the MWCNTs. Moreover, thicker nanotubes (approximately 40 nm) with a higher aspect ratio (approximately 225) are less prone to shortening and impart better tensile and storage modulus along with improved electrical and therefore are more suitable for the MWCNT nanocomposites.

    AlkuperäiskieliEnglanti
    Sivut305-313
    Sivumäärä9
    JulkaisuComposites Part A: Applied Science and Manufacturing
    Vuosikerta102
    DOI - pysyväislinkit
    TilaJulkaistu - 1 marrask. 2017
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    Julkaisufoorumi-taso

    • Jufo-taso 2

    !!ASJC Scopus subject areas

    • Ceramics and Composites
    • Mechanics of Materials

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