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The use of DMTA for predicting standard mechanical properties of developmental polyolefins

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Abstract

The correlation of linear data from dynamic-mechanical testing (DMTA) to nonlinear data from standard mechanical testing was attempted for a number of quite different polypropylene-based compositions. For limited composition ranges, correlations between storage modulus and stiffness as well as between loss angle integrals and impact strength could be achieved. Challenges in trying to correlate DMTA tests to standard mechanics clearly result from morphology effects at different scales, both in crystallinity and flow-induced superstructures (orientation) and in multiphase impact copolymers or composites. While a relative scaling turned out to be easy, absolute prediction is difficult.

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Authors and Affiliations

  1. Borealis Polyolefine GmbH, St. Peterstr. 25, 4021, Linz, Austria

    M. Gahleitner, C. Grein, K. Bernreitner, B. Knogler & E. Hebesberger

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  1. M. Gahleitner
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  2. C. Grein
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  3. K. Bernreitner
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  4. B. Knogler
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  5. E. Hebesberger
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Correspondence to M. Gahleitner.

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Gahleitner, M., Grein, C., Bernreitner, K. et al. The use of DMTA for predicting standard mechanical properties of developmental polyolefins. J Therm Anal Calorim 98, 623–628 (2009). https://doi.org/10.1007/s10973-009-0506-5

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