Filler Dispersion In Polypropylene/Elastomer Blends

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19 Citations (Scopus)


A study, which was carried out on three-component polymer composites prepared from polypropylene having strong tendency to crystallize in the β-form, from either a nonpolar (ethylene-propylene copolymer) or a polar (ethylene-vinylacetate copolymer) elastomer, respectively, and from a filler showing a-nucleation effect (talc), has shown that compared to the nonpolar elastomer, the polar one suppresses significantly the selective a-nucleation effect of the filler and thus composites having a matrix rich in the β modification of PP can be prepared. Changes of the polymorphous composition prove the assumption that the distribution of the filler between the two polymers is primarily determined by the mutual wettability of the components and that the relationships between the structure and properties of the composites are only slightly influenced by the blend preparation technique, i.e. by the sequence of mixing. Modulus, strength, and impact properties of the three-component composites prepared with a polar elastomer are less advantageous than the same characteristics of the composites containing a nonpolar elastomer.

Original languageEnglish
Pages (from-to)231-251
Number of pages21
JournalJournal of Polymer Engineering
Issue number1-3
Publication statusPublished - márc. 1991


ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry

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