Article
  • Properties of Poly(vinyl chloride)/PB-g-PMMA Composites
  • Wu G, Zhang H, Zhang H
  • 폴리염화비닐/PB-g-PMMA 복합재의 특징
  • Wu G, Zhang H, Zhang H
Abstract
To improve the mechanical properties of poly(vinyl chloride) (PVC), the characters of combining PVC with elastomers were considered. Polybutadiene grafted poly(methyl methacrylate) (PB-g-PMMA, MB) core-shell particles were prepared by emulsion polymerization, and were used as an impact modifier for PVC. The impact resistance, fracture, brittle-ductile transition and the morphology of PVC/MB blends were investigated. It was found that MB particles had a high toughening efficiency for PVC resin, the impact strength was more than 1100 J·m-1 when MB was 8 phr. Two factors influence the impact strength and brittle-ductile transition, one is the modifier content, and the other is core-shell weight ratio. The impact curves are Ω-like shape, the impact strength value is the highest at the middle part and the PVC/MB blends show ductile break behaviors. The core shell ratio of ductile areas are limited from 80/20 to 90/10 for PVC/MB=100/8, and 70/30 to 93/7 for PVC/MB=100/10.

Keywords: polymer composite; toughened; brittle-ductile transition; core-shell particles

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2015; 39(5): 809-813

    Published online Sep 25, 2015

  • 10.7317/pk.2015.39.5.809
  • Received on Mar 11, 2015
  • Accepted on May 18, 2015