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Measurement of dispersion of glass beads in PP matrix

  • J. Z. Liang
  • , R. K Y Li

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

    Abstract

    The dispersion of rigid inorganic particles (RIP) in polymer matrix is discussed and an equation for estimation of the dispersion is proposed. The dispersion of glass beads (GB) in polypropylene (PP) matrix and PP/ethylene-propylene-diene monomer copolymer (EPDM) blend was measured by means of thermogravimetric analysis (TGA). It was found that the effects of the filler surface treatment and modification on the uniformity of the glass beads in the PP matrix was insignificant at low filler concentration. But the dispersion for the PP filled with the small glass beads was better than that of the big GB-filled system. Moreover, the values of the measured weight fraction of the glass beads were somewhat lower than those of the calculations for PP/EPDM/GB hybrid composites. In other words, no obvious cluster or aggregation phenomenon of the glass beads in the matrix occurs for these systems. It suggests that the uniformity of the glass bead dispersion for PP/EPDM/GB systems is relatively better than that of P P/GB systems.
    Original languageEnglish
    Pages (from-to)630-638
    JournalJournal of Reinforced Plastics and Composites
    Volume20
    Issue number8
    DOIs
    Publication statusPublished - 2001

    Research Keywords

    • Composite
    • Dispersion
    • Glass bead
    • Polypropylene

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