Structure and properties of NR- and XNBR-toughened polypropylene produced with latex by melt compounding

L. Lendvai, J. Karger-Kocsis

Research output: Contribution to journalConference article

Abstract

Binary blends composed of polypropylene (PP) and natural rubber (NR) or carboxylated acrylonitrile butadiene rubber (XNBR) were produced in batch-type melt compounding process. The rubbers used as toughening agents were introduced into PP in up to 20 wt% in their dry and latex forms. Structure-property relationships of the blends were studied. Both NR and XNBR were homogenously dispersed in the PP matrix: XNBR in microscale, NR in the submicronic scale. Fracture toughness and energy, determined on notched Charpy specimens, were improved by rubber toughening, however, at the cost of stiffness and strength, determined in tensile tests. NR toughened blends were superior to blends containing XNBR with respect to impact resistance. The introduction of rubbers in latex form resulted in slightly better mechanical performance compared to addition in dry form.

Original languageEnglish
Article number012030
JournalIOP Conference Series: Materials Science and Engineering
Volume426
Issue number1
DOIs
Publication statusPublished - Oct 18 2018
Event11th Hungarian Conference on Materials Science, 2017 - Balatonkenese, Hungary
Duration: Oct 15 2017Oct 17 2017

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ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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