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Fracture toughness of polybutadiene at cryogenic temperatures

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Abstract

An estimate of fracture toughness of crosslinked polybutadiene rubber at — 180° C has been made using the double torsion method. By using suitable specimen dimensions and strain rates, controlled crack propagation can be achieved, together with a constant compliance to crack length ratio. Strain energy release rates for this polymer, crosslinked with either dicumyl peroxide or sulphur, were found to be an order of magnitude higher than for linear, glassy thermoplastics. Crazing is considered to contribute to the high toughness observed.

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Authors and Affiliations

  1. School of Chemical Engineering and Industrial Chemistry, University of New South Wales, 2033, Kensington, NSW, Australia

    R. P. Burford

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  1. R. P. Burford
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Additional information

Work conducted whilst on leave at the Institute of Polymer Science, University of Akron, Akron, Ohio, February–July 1982.

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Burford, R.P. Fracture toughness of polybutadiene at cryogenic temperatures. J Mater Sci 18, 3756–3764 (1983). https://doi.org/10.1007/BF00540750

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  • DOI: https://doi.org/10.1007/BF00540750

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