Miscibility and synergistic effect of impact strength in polycarbonate/ABS blends

Jong Han Chun, Ki Suck Maeng, Kwang S. Suh

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Miscibility and mechanical properties of polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) blends prepared by a continuous kneader-type extruder were investigated. It was found that the PC/ABS blend consists of the miscible PC/SAN phases and immiscible PC/PB phases, which agrees well with that predicted by the group contribution method of solubility parameters. Differences in calculated solubility parameter (Δδ) are 0.20 (cal cm-3)1/2 for the PC/SAN pair and 1.85 (cal cm-3)1/2 for the PC/PB pair. Interestingly, the impact strength of the present PC/ABS blends exhibits a synergistic effect over a much wider range of polycarbonate content, i.e. 20%-80%, than that of the previously reported ones. This may be attributed to the enhanced mixing and low butadiene content. However, further work on the relationship with the rubber particle size is required to understand fully this observation.

Original languageEnglish
Pages (from-to)5347-5352
Number of pages6
JournalJournal of Materials Science
Issue number19
Publication statusPublished - 1991 Oct

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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