Modifying the carbon fiber-epoxy matrix interphase with silicon dioxide nanoparticles

Wenzhen Qin, Frederic Vautard, Per Askeland, Junrong Yu, Lawrence Drzal

    Research output: Contribution to journalArticle

    • 12 Citations

    Abstract

    Nanoparticle modification of the carbon fiber-epoxy interface was investigated by depositing silicon dioxide (SiO2) nanoparticles on the surface of carbon fibers (CFs) using a conventional sizing process by immersing CFs tows in a SiO2 nanoparticle suspension. The surface density of the nanoparticles and the uniformity of their dispersion were characterized by scanning electron microscopy. CF-epoxy composites were fabricated to study the effect of the SiO2 nanoparticle coating on the CF-epoxy composite interfacial properties. Interfacial adhesion was assessed by measuring the interfacial shear strength (IFSS) with the single fiber fragmentation test. A 44% improvement of the IFSS was obtained with a SiO2 relative concentration of 1.3 wt%, compared with non-coated CFs. This increase was the result of an increase of the shear modulus of the matrix in the interphase region caused by the presence of the SiO2 nanoparticles. Coating CFs with SiO2 nanoparticles has been shown to be a simple, scalable, and cost effective method to increase the interfacial mechanical properties in CF-epoxy composites.

    Original languageEnglish (US)
    Pages (from-to)2457-2465
    Number of pages9
    JournalRSC Advances
    Volume5
    Issue number4
    DOIs
    StatePublished - 2015

    Profile

    Carbon fibers
    Nanoparticles
    Myosins
    Composite materials
    Shear strength
    Silica
    Coatings
    Enzyme Reactivators
    Edema Disease of Swine
    Acetabularia
    Histone Deacetylases
    Adhesion
    Elastic moduli
    Mechanical properties
    Scanning electron microscopy
    Fibers
    Costs
    Abnormal Erythrocytes
    Coccidiostats
    Aldicarb

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)

    Cite this

    Modifying the carbon fiber-epoxy matrix interphase with silicon dioxide nanoparticles. / Qin, Wenzhen; Vautard, Frederic; Askeland, Per; Yu, Junrong; Drzal, Lawrence.

    In: RSC Advances, Vol. 5, No. 4, 2015, p. 2457-2465.

    Research output: Contribution to journalArticle

    Qin, W, Vautard, F, Askeland, P, Yu, J & Drzal, L 2015, 'Modifying the carbon fiber-epoxy matrix interphase with silicon dioxide nanoparticles' RSC Advances, vol 5, no. 4, pp. 2457-2465. DOI: 10.1039/c4ra11878b

    Qin, Wenzhen; Vautard, Frederic; Askeland, Per; Yu, Junrong; Drzal, Lawrence / Modifying the carbon fiber-epoxy matrix interphase with silicon dioxide nanoparticles.

    In: RSC Advances, Vol. 5, No. 4, 2015, p. 2457-2465.

    Research output: Contribution to journalArticle

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