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

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Abstract

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.

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Authors and Affiliations

  1. Chemical Safety Department, Industrial Safety Training Institute, Inchon, Korea

    Jong-Han Chun

  2. Department of Chemical Engineering, Chung Nam University, Dae Jeon, Korea

    Ki-Suck Maeng

  3. Department of Materials Science, Korea University, Seoul, Korea

    Kwang S. Suh

Authors
  1. Jong-Han Chun
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  2. Ki-Suck Maeng
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  3. Kwang S. Suh
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Chun, JH., Maeng, KS. & Suh, K.S. Miscibility and synergistic effect of impact strength in polycarbonate/ABS blends. J Mater Sci 26, 5347–5352 (1991). https://doi.org/10.1007/BF01143232

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  • DOI: https://doi.org/10.1007/BF01143232

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