Time: Temperature superposition principle: Application of WLF equation in polymer analysis and composites

Authors

  • Chad Smithson Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada Author
  • Marina Stamenović College of Vocational Studies Belgrade Polytechnic, Belgrade Author
  • Maja Nujkić University of Belgrade, Technical Faculty, Bor, Serbia Author
  • Slaviša Putić University of Belgrade, Faculty of Technology and Metallurgy, Serbia Author

DOI:

https://doi.org/10.5937/ZasMat1404395L

Keywords:

TTS principle, WLF equation, application, polymers, composites, characterization

Abstract

Polymers are the most studied viscoelastic material. The shorter times (high frequencies) corresponding to lower temperatures and long times (low frequencies) to high temperatures. This represents the quantitatively applied time-temperature superposition (TTS). Use of the Williams- Landel-Ferry (WLF) equation and the time-temperature superposition principle enables prediction and modeling of the mechanical and rheological properties of polymeric systems outside the timescale of the experiment. Application and validity of the TTS principle and WLF equation in polymer blends, composites, biopolymers and polymer networks will be discussed in this review.

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Published

15-12-2014

Issue

Vol. 55 No. 4 (2014)

Section

Articles