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The impact strength of polycarbonate

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Abstract

Measurements of the Charpy notched impact strength of polydiancarbonate indicate that the polymer can exist in one of two modifications A and B. There is a temperature (below room temperature) above which the A form is unusually tough; the B modification is comparatively brittle at all temperatures. The A form can be converted to the B form by an annealing process which proceeds rapidly above 80°C. We have not been able to determine the precise morphological difference between the A and B forms but most of the data can be explained by making a hypothesis about the yield behaviour of the A form.

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Authors and Affiliations

  1. Chemistry Department, University of Manchester, UK

    G. Allen

  2. ICI Corporate Laboratory, Runcorn, Cheshire, UK

    D. C. W. Morley & T. Williams

Authors
  1. G. Allen
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  2. D. C. W. Morley
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  3. T. Williams
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Allen, G., Morley, D.C.W. & Williams, T. The impact strength of polycarbonate. J Mater Sci 8, 1449–1452 (1973). https://doi.org/10.1007/BF00551669

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  • DOI: https://doi.org/10.1007/BF00551669

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