Effects of carbon nanofibers on the fracture, mechanical, and thermal properties of PP/SEBS-g-MA blends

Cheng Zhu Liao, Sie Chin Tjong

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    28 Citations (Scopus)

    Abstract

    Polypropylene/maleated (styrene-ethylene-butadiene-styrene) (PP/SEBS-g-MA) blends reinforced with 0.2-2.5 wt% carbon nanofibers (CNFs) were prepared by injection molding. The structure, thermal, mechanical, and fracture behaviors of PP/SEBS-g-MA blends and their nanocomposites were studied. Wide-angle X-ray diffraction (WAXD) results showed that the SEBS-g-MA and/or CNF additions do not induce a structural change of PP. Tensile measurements showed that the Young's modulus and tensile yield strength increase with the increasing filler content. Izod impact and essential work of fracture test results demonstrated that CNFs are beneficial to improve the impact strength and specific essential work of fracture of PP/SEBS-g-MA blends. Therefore, tough PP-nanocomposites can be achieved by melt-blending low fractions of CNFs and appropriate elastomer contents. © 2011 Society of Plastics Engineers.
    Original languageEnglish
    Pages (from-to)948-958
    JournalPolymer Engineering and Science
    Volume51
    Issue number5
    DOIs
    Publication statusPublished - May 2011

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