Dispersion optimization of exfoliated graphene nanoplatelet in polyetherimide nanocomposites: Extrusion, precoating, and solid state ball milling

Huang Wu, Brian Rook, Lawrence T. Drzal

    Research output: Research - peer-reviewArticle

    • 20 Citations

    Abstract

    Polyetherimide (PEId) nanocomposites reinforced with exfoliated graphite (graphene) nanoplatelets (GNP) were fabricated by various processing methods to achieve good dispersion including: melt-extrusion, precoating, solid state ball milling (SSBM) as well as combinations of these methods. As a result of the precoating approach, the electrical conductivity is greatly increased with a percolation threshold as low as 2 wt% as compared to 10 wt% for melt-extrusion, with the cost of lower mechanical properties. SSBM was investigated as an alternative process to enhance dispersion, adhesion and to reduce GNP size. High electrical conductivity and improved modulus were achieved by this approach. Further improvements to the mechanical properties could be made by combining the extrusion and SSBM approaches. Examination of the nanocomposite morphology explains the effect of these combined compounding approaches on GNP particle dispersion and their relation to the improved GNP/PEId nanocomposite performance. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers

    LanguageEnglish (US)
    Pages426-432
    Number of pages7
    JournalPolymer Composites
    Volume34
    Issue number3
    DOIs
    StatePublished - Mar 2013

    Profile

    Polyetherimides
    Ball milling
    Graphene
    Extrusion
    Nanocomposites
    Graphite
    polyetherimide
    Mechanical properties
    Electric Conductivity
    Adhesion
    Plastics
    Engineers
    Processing
    Costs

    ASJC Scopus subject areas

    • Polymers and Plastics
    • Materials Chemistry
    • Ceramics and Composites
    • Chemistry(all)

    Cite this

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    title = "Dispersion optimization of exfoliated graphene nanoplatelet in polyetherimide nanocomposites: Extrusion, precoating, and solid state ball milling",
    abstract = "Polyetherimide (PEId) nanocomposites reinforced with exfoliated graphite (graphene) nanoplatelets (GNP) were fabricated by various processing methods to achieve good dispersion including: melt-extrusion, precoating, solid state ball milling (SSBM) as well as combinations of these methods. As a result of the precoating approach, the electrical conductivity is greatly increased with a percolation threshold as low as 2 wt% as compared to 10 wt% for melt-extrusion, with the cost of lower mechanical properties. SSBM was investigated as an alternative process to enhance dispersion, adhesion and to reduce GNP size. High electrical conductivity and improved modulus were achieved by this approach. Further improvements to the mechanical properties could be made by combining the extrusion and SSBM approaches. Examination of the nanocomposite morphology explains the effect of these combined compounding approaches on GNP particle dispersion and their relation to the improved GNP/PEId nanocomposite performance. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers",
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    AU - Rook,Brian

    AU - Drzal,Lawrence T.

    PY - 2013/3

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    N2 - Polyetherimide (PEId) nanocomposites reinforced with exfoliated graphite (graphene) nanoplatelets (GNP) were fabricated by various processing methods to achieve good dispersion including: melt-extrusion, precoating, solid state ball milling (SSBM) as well as combinations of these methods. As a result of the precoating approach, the electrical conductivity is greatly increased with a percolation threshold as low as 2 wt% as compared to 10 wt% for melt-extrusion, with the cost of lower mechanical properties. SSBM was investigated as an alternative process to enhance dispersion, adhesion and to reduce GNP size. High electrical conductivity and improved modulus were achieved by this approach. Further improvements to the mechanical properties could be made by combining the extrusion and SSBM approaches. Examination of the nanocomposite morphology explains the effect of these combined compounding approaches on GNP particle dispersion and their relation to the improved GNP/PEId nanocomposite performance. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers

    AB - Polyetherimide (PEId) nanocomposites reinforced with exfoliated graphite (graphene) nanoplatelets (GNP) were fabricated by various processing methods to achieve good dispersion including: melt-extrusion, precoating, solid state ball milling (SSBM) as well as combinations of these methods. As a result of the precoating approach, the electrical conductivity is greatly increased with a percolation threshold as low as 2 wt% as compared to 10 wt% for melt-extrusion, with the cost of lower mechanical properties. SSBM was investigated as an alternative process to enhance dispersion, adhesion and to reduce GNP size. High electrical conductivity and improved modulus were achieved by this approach. Further improvements to the mechanical properties could be made by combining the extrusion and SSBM approaches. Examination of the nanocomposite morphology explains the effect of these combined compounding approaches on GNP particle dispersion and their relation to the improved GNP/PEId nanocomposite performance. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers

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