Multifunctional graphene nanoplatelets/cellulose nanocrystals composite paper

Fuzhong Wang, Lawrence T. Drzal, Yan Qin, Zhixiong Huang

    Research output: Research - peer-reviewArticle

    • 11 Citations

    Abstract

    We demonstrate a water-based method to fabricate strong, electrically and thermally conductive hybrid thin films (papers) made from the combination of graphene nanoplatelets (GnP) and cellulose nanocrystals (CNC). Unpressed and hot-pressed GnP papers containing CNC ranging from 0 wt% to 25 wt% were prepared. It is found that the GnP is well aligned within the hybrid paper, and a higher degree of alignment is induced by the hot-pressing process. The mechanical properties of the resulting papers increased with increasing content of CNC. The hot-pressed 25 wt% CNC hybrid paper showed the best mechanical properties among all the papers studied and improved the tensile strength by 33% and the modulus by 57% compared to neat GnP paper. Both the highest in-plane and though-plane thermal conductivity of 41 W/m K and 1.2 W/m K were measured respectively for the hot-pressed 15 wt% CNC hybrid paper. The electrical conductivity decreased continuously with increasing content of CNC but the thin film was still conductive at the highest CNC content in this study. The low-cost, environmental-friendly, thermally and electrically conductive flexible GnP/CNC hybrid papers have a set of properties making them suitable for many potential applications.

    LanguageEnglish (US)
    Pages521-529
    Number of pages9
    JournalComposites Part B: Engineering
    Volume79
    DOIs
    StatePublished - Jun 2 2015

    Profile

    Graphite
    Cellulose
    Nanocrystals
    Composite materials
    Graphene
    Thin films
    Mechanical properties
    Hot pressing
    Thermal conductivity
    Tensile strength
    Water
    Costs
    Electric Conductivity

    Keywords

    • A. Thin films
    • B. Electrical properties
    • B. Mechanical properties
    • B. Thermal properties

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Mechanics of Materials
    • Industrial and Manufacturing Engineering
    • Mechanical Engineering

    Cite this

    Multifunctional graphene nanoplatelets/cellulose nanocrystals composite paper. / Wang, Fuzhong; Drzal, Lawrence T.; Qin, Yan; Huang, Zhixiong.

    In: Composites Part B: Engineering, Vol. 79, 02.06.2015, p. 521-529.

    Research output: Research - peer-reviewArticle

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