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Brittle-ductile transition in polypropylene filled with glass beads

  • Ji-Zhao Liang
  • , R. K Y Li

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

    Abstract

    The effect of surface treatment of glass beads with a silane coupling agent and the filler content on the notched Izod impact properties of the filled polypropylene (PP) composites has been investigated. It was found that the impact fracture energy of the composites, E(IC), increased with increasing the volume fraction of glass beads, φ(f); the influence of surface treatment of glass beads on E(IC) was insignificant; the brittle- ductile transition (BDT) phenomenon occurred when φ(f) was about 10%. A modified percolation model for BDT in thermoplastic-rigid particle blends is proposed under the basis of predecessors' work. The results show that the BDT of the composites in impact can be considered as a percolation process. (C) 1999 Elsevier Science Ltd.
    Original languageEnglish
    Pages (from-to)3191-3195
    JournalPolymer
    Volume40
    Issue number11
    DOIs
    Publication statusPublished - May 1999

    Research Keywords

    • Composite
    • Glass bead
    • Polypropylene

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