Thermal, morphological, and electrical characterization of microwave processed natural fiber composites

Nikki Sgriccia, M. C. Hawley

    Research output: Research - peer-reviewArticle

    • 56 Citations

    Abstract

    Experiments to investigate the effectiveness of microwave curing of natural fiber reinforced composites have been performed. Hemp, flax, kenaf, henequen and glass (15 wt.%) reinforced epoxy composed of diglycidyl ether of bisphenol-A (DGEBA) and diaminodiphenyl sulfone (DDS) composites were studied. Differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), environmental scanning electron microscopy (ESEM), and swept frequency diagnostic method were used to investigate material properties. Samples were processed using both microwave and thermal curing. Glass and flax composites reached a higher final extent of cure with microwave curing than with thermal curing. Glass, flax, and hemp cured faster in the microwave than their convection oven counterparts. Natural fibers and their composites degraded at lower temperatures than glass and glass fiber composites. ESEM micrographs, used to investigate fiber morphology, indicated a lack of bonding at the interfaces between the fibers, natural and glass, and matrix.

    LanguageEnglish (US)
    Pages1986-1991
    Number of pages6
    JournalComposites Science and Technology
    Volume67
    Issue number9
    DOIs
    StatePublished - Jul 2007

    Profile

    Natural fibers
    Microwaves
    Composite materials
    Hot Temperature
    Curing
    Glass
    Flax
    Cannabis
    Scanning electron microscopy
    Hemp
    Glass fibers
    Sulfones
    Ovens
    Thermogravimetric analysis
    Differential scanning calorimetry
    Materials properties
    Fibers
    Experiments
    Temperature
    Convection

    Keywords

    • A. Polymer-matrix composites
    • B. Electrical properties
    • B. Thermal properties
    • D. Differential scanning calorimetry
    • Microwave

    ASJC Scopus subject areas

    • Engineering(all)
    • Ceramics and Composites

    Cite this

    Thermal, morphological, and electrical characterization of microwave processed natural fiber composites. / Sgriccia, Nikki; Hawley, M. C.

    In: Composites Science and Technology, Vol. 67, No. 9, 07.2007, p. 1986-1991.

    Research output: Research - peer-reviewArticle

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