Effects of functionalized graphene nanoplatelets on the morphology and properties of epoxy resins

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

    Research output: Contribution to journalArticle

    • 3 Citations

    Abstract

    Graphene nanoplatelets (GnPs) were successfully functionalized with a liquid rubber, amine-terminated poly(butadiene-co-acrylonitrile) (ATBN), and the functionalized GnPs (ATBN-GnP) were characterized by microscopic and spectroscopic techniques. Different amounts of ATBN-GnP and pristine GnP were individually incorporated into an epoxy resin to fabricate epoxy composites. Compared with the pristine GnP, ATBN-GnP demonstrated stronger ameliorating effects due to an enhanced GnP-epoxy interfacial adhesion. At 5.0 wt% GnP content, the flexural modulus of GnP/epoxy composite increased by 18.1%, whereas the ATBN-GnP improved the flexural modulus by 22.1% at the same fraction. A remarkable enhancement of quasi-static fracture toughness was obtained at 5.0 wt% GnP and 5.0 wt% ATBN-GnP with 76.2% and 92.8% increase, respectively. Incorporation of 5.0 wt% ATBN-GnP improved thermal conductivity of the neat epoxy by 133.6%, and the thermal conductivity of 5.0 wt% ATBN-GnP/epoxy is about 16% higher than that of the pristine GnP/epoxy. The superior reinforcement of ATBN-GnP is attributed to the strong interfacial bonding between ATBN-GnP and epoxy matrix as confirmed by microscopic observations.

    Original languageEnglish (US)
    Pages (from-to)525-536
    Number of pages12
    JournalHigh Performance Polymers
    Volume28
    Issue number5
    DOIs
    StatePublished - Jun 1 2016

    Profile

    Graphene
    Epoxy resins
    Thermal conductivity
    Composite materials
    Joint Loose Bodies
    Butadiene
    Fracture toughness
    Amines
    Reinforcement
    Rubber
    Adhesion
    Liquids
    Enzyme Reactivators
    Aldicarb
    Cyanoacrylates
    Birth Certificates
    Aldosterone
    Immunoglobulin A

    Keywords

    • Epoxy resins
    • fracture toughness
    • graphene nanoplatelets
    • mechanical properties
    • nanocomposites
    • thermal properties

    ASJC Scopus subject areas

    • Materials Chemistry
    • Polymers and Plastics
    • Organic Chemistry

    Cite this

    Effects of functionalized graphene nanoplatelets on the morphology and properties of epoxy resins. / Wang, Fuzhong; Drzal, Lawrence T.; Qin, Yan; Huang, Zhixiong.

    In: High Performance Polymers, Vol. 28, No. 5, 01.06.2016, p. 525-536.

    Research output: Contribution to journalArticle

    Wang, Fuzhong; Drzal, Lawrence T.; Qin, Yan; Huang, Zhixiong / Effects of functionalized graphene nanoplatelets on the morphology and properties of epoxy resins.

    In: High Performance Polymers, Vol. 28, No. 5, 01.06.2016, p. 525-536.

    Research output: Contribution to journalArticle

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