Process induced orientation of nanolayers in polyolefin nanocomposites

Sharad Kumar, K. Jayaraman

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

    • 1 Citations

    Abstract

    Polypropylene nanocomposites with layered silicates have been prepared with and without edge functionalization by melt processing. The resulting composites were subjected to uniaxial extensional flow in the core of axisymmetric converging dies at strain rates of up to 5 s -1 and a Hencky strain of about 5. The edge treated clay led to a much greater level of exfoliation as determined by XRD, TEM and dynamic viscosity measurements. We observe that at the high strains, the nanolayers are predominantly oriented parallel to the flow direction in the core, in contrast to the perpendicular orientation reported by Okamoto et al. for uniaxial extension of nanocomposite strips to a strain of 1.3.

    Original languageEnglish (US)
    Title of host publicationAnnual Technical Conference - ANTEC, Conference Proceedings
    Pages1498-1502
    Number of pages5
    Volume2
    StatePublished - 2004
    EventANTEC 2004 - Annual Technical Conference Proceedings - Chicago, IL., United States

    Other

    OtherANTEC 2004 - Annual Technical Conference Proceedings
    CountryUnited States
    CityChicago, IL.
    Period5/16/045/20/04

    Profile

    Nanocomposites
    Viscosity measurement
    Polyolefins
    Silicates
    Strain rate
    Polypropylenes
    Clay
    Transmission electron microscopy
    Composite materials

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Kumar, S., & Jayaraman, K. (2004). Process induced orientation of nanolayers in polyolefin nanocomposites. In Annual Technical Conference - ANTEC, Conference Proceedings (Vol. 2, pp. 1498-1502)

    Process induced orientation of nanolayers in polyolefin nanocomposites. / Kumar, Sharad; Jayaraman, K.

    Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 2 2004. p. 1498-1502.

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

    Kumar, S & Jayaraman, K 2004, Process induced orientation of nanolayers in polyolefin nanocomposites. in Annual Technical Conference - ANTEC, Conference Proceedings. vol. 2, pp. 1498-1502, ANTEC 2004 - Annual Technical Conference Proceedings, Chicago, IL., United States, 16-20 May.
    Kumar S, Jayaraman K. Process induced orientation of nanolayers in polyolefin nanocomposites. In Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 2. 2004. p. 1498-1502.

    Kumar, Sharad; Jayaraman, K. / Process induced orientation of nanolayers in polyolefin nanocomposites.

    Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 2 2004. p. 1498-1502.

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

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