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Tensile fracture morphology of polysulfone-poly(phenylene sulfide) blends

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Summary

Melt-extruded and subsequently injection molded polysulfone (PSF) and poly(phenylene sulfide) (PPS) blends exhibit very good tensile properties, at least up to 30–50% by weight of PPS. The tensile strength at the lower PPS contents shows additive effect or slightly better and materials fail in ductile mode. Tensile fracture surfaces were investigated using scanning electron microscopy (SEM). The 20% PPS blend shows no apparent voids between phases with some pull-out or elongation of the dispersed phase. At 35% PPS, phase boundaries were not clear and very rough surface profiles were observed. Blends with high PPS content (>50%) usually fail in the brittle mode. The fracture morphology of systems failing with a brittle mode revealed an interfacial debonding phenomenon.

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Authors and Affiliations

  1. Research Staff, Ford Motor Company, P.O. Box 2053, 48121, Dearborn, MI, USA

    M. -F. Cheung & H. K. Plummer Jr.

Authors
  1. M. -F. Cheung
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  2. H. K. Plummer Jr.
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Cheung, M.F., Plummer, H.K. Tensile fracture morphology of polysulfone-poly(phenylene sulfide) blends. Polymer Bulletin 26, 349–356 (1991). https://doi.org/10.1007/BF00587980

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  • DOI: https://doi.org/10.1007/BF00587980

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