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The strain-rate and temperature dependence of the mechanical properties of polyetherketone and polyetheretherketone


Citation

Hamdan, Sinin and Swallowe, G. M. (1996) The strain-rate and temperature dependence of the mechanical properties of polyetherketone and polyetheretherketone. Journal of Materials Science, 31 (6). pp. 1415-1423. ISSN 0022-2461; ESSN: 1573-4803

Abstract / Synopsis

ABSTRACT The mechanical properties of polyetheretherketone and polyetherketone were studied as a function of strain rate and temperature in the ranges 10⁻3 to 103s⁻1 and 20–200°C. At temperatures below the glass transition temperature, Tg, the strain-rate sensitivity of both polymers was found to be almost independent of temperature with a value of ̴4 MPa per decade of strain rate and the behaviour was well described by an Eyring relationship leading to an activation volume of ̴1 nm3. Above Tg, X-ray and differential scanning calorimetry studies show that cold-crystallization phenomena play a very important part in the polymer behaviour, leading to an increase of yield stress with increasing temperature. The crystallization was found to be highly strain-rate dependent with no increase in crystalline content occurring in quasi-static tests and increases of up to 20% in higher rate tests. Much of the data have been gathered using novel test equipment which is described in the paper.


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Additional Metadata

Item Type: Article
Divisions: Universiti Pertanian Malaysia
DOI Number: https://doi.org/10.1007/BF00357847
Publisher: Springer
Keywords: Strain-rate; Temperature; Polyetherketone; Polyetheretherketone
Depositing User: Azhar Abdul Rahman
Date Deposited: 12 Aug 2015 13:44
Last Modified: 13 Jan 2016 14:45
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/BF00357847
URI: http://psasir.upm.edu.my/id/eprint/39688
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