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The effect of spherulite size on the fracture morphology of polypropylene

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Abstract

Tensile tests show that for isotactic polypropylene the graph of yield stress versus spherulite size goes through a maximum at a critical spherulite size. Scanning electron and transmission optical microscopy indicate that this represents a change-over from spherulite yield to boundary yield, caused by an increased segregation of impurities at the boundaries coupled with voidage owing to contraction of the spherulites on cooling.

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References

  1. H. W. Starkweather, Jun. and R. E. Brooks, J. Appl. Polymer Sci. 1 (1959) 236.

    Google Scholar 

  2. R. N. Haward and J. Mann, Proc. Roy. Soc. (Lond.) A, 282 (1964) 120.

    Google Scholar 

  3. M. Leitner, Trans. Faraday Soc. 51 (1955) 1015.

    Google Scholar 

  4. J. M. Greig, Ph.D Thesis, Leeds University (1970).

  5. E. H. Andrews, J. Polymer Sci. A-2, 4 (1966) 668.

    Google Scholar 

  6. J. L. Way and J. R. Atkinson, J. Mater. Sci. 6 (1971) 102.

    Google Scholar 

  7. C. W. Bunn, “Fibres from Synthetic Polymers” (Ed. R. Hill) (Elsevier, Amsterdam, 1953), p. 253.

    Google Scholar 

  8. E. O. Hall, Proc. Physical Soc. B64 (1951) 742 and 747; N. J. Petch, J. Iron and Steel Inst. 173 (1953) 25.

    Google Scholar 

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Authors and Affiliations

  1. Department of Metallurgy, University of Leeds, Leeds, UK

    J. L. Way, J. R. Atkinson & J. Nutting

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  1. J. L. Way
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  2. J. R. Atkinson
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  3. J. Nutting
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Way, J.L., Atkinson, J.R. & Nutting, J. The effect of spherulite size on the fracture morphology of polypropylene. J Mater Sci 9, 293–299 (1974). https://doi.org/10.1007/BF00550954

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  • DOI: https://doi.org/10.1007/BF00550954

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