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Weibull distribution application on temperature dependence of polyurethane storage modulus

  • Ivan Kopal , Dana Bakošová , Pavel Koštial , Zora Jančíková , Jan Valíček und Marta Harničárová
Veröffentlicht/Copyright: 30. April 2016
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 107 Heft 5

Abstract

In this paper, a stiffness–temperature model based on Weibull statistics was applied to quantitatively describe changes in the storage modulus of thermoplastic polyurethane over a wide range of temperature. The variation of the storage modulus with temperature was obtained from dynamic mechanical analysis tests across transition temperatures. Both the physical and statistical parameters of the applied model were estimated in the process of parametric fitting of the model to the storage modulus versus a temperature curve by using a trust region algorithm for a robust nonlinear least squares method. Good agreement between the modeled and experimental data has been found over the entire investigated temperature range, including all observed relaxation transitions.

Keywords: Stiffness–temperature model for polymers; Weibull distribution; Relaxations of polymers; Dynamic mechanical analysis; Thermoplastic polyurethane
*Correspondence address, Associate Professor, Mgr. Ivan Kopal, PhD., Faculty of Industrial Technologies in Puchov, Alexander Dubcek University of Trencin, I. Krasku 491/30, Puchov 020 01, lovakia. Tel.: +42142 2851839, E-mail:

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Received: 2015-09-23
Accepted: 2015-11-11
Published Online: 2016-04-30
Published in Print: 2016-05-13

© 2016, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructural evolution and creep of Fe–Al–Ta alloys
  5. Creep behaviour characterisation of a ferritic steel alloy based on the modified theta-projection data at an elevated temperature
  6. Facile fabrication, microstructure, and corrosion resistance of high-strength, high-hardness pure bulk aluminum
  7. A method for improving the mechanical properties of a hypereutectic Al–Si alloy by introducing the α-Al phase
  8. Experimental investigation by atomic force microscopy on mechanical and tribological properties of thin films
  9. Influence of ceramic B4C particulate addition on tensile behavior of 6061 aluminum matrix
  10. Role of cerium, lanthanum, and strontium additions in an Al – Si – Mg (A356) alloy
  11. Structural and mechanical study on Mg–xLM (x = 0–5 wt.%, LM = Sn, Ga) alloys
  12. Weibull distribution application on temperature dependence of polyurethane storage modulus
  13. Hierarchical bismuth phosphate microspheres with high photocatalytic performance
  14. Influence of calcination temperature on sol–gel synthesized single-phase bismuth titanate for high dielectric capacitor applications
  15. People
  16. Prof. Dr. Wolfgang Bleck on the occasion of his 65th birthday
  17. DGM News
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https://doi.org/10.3139/146.111359
Schlagwörter für diesen Artikel
Stiffness–temperature model for polymers; Weibull distribution; Relaxations of polymers; Dynamic mechanical analysis; Thermoplastic polyurethane

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructural evolution and creep of Fe–Al–Ta alloys
  5. Creep behaviour characterisation of a ferritic steel alloy based on the modified theta-projection data at an elevated temperature
  6. Facile fabrication, microstructure, and corrosion resistance of high-strength, high-hardness pure bulk aluminum
  7. A method for improving the mechanical properties of a hypereutectic Al–Si alloy by introducing the α-Al phase
  8. Experimental investigation by atomic force microscopy on mechanical and tribological properties of thin films
  9. Influence of ceramic B4C particulate addition on tensile behavior of 6061 aluminum matrix
  10. Role of cerium, lanthanum, and strontium additions in an Al – Si – Mg (A356) alloy
  11. Structural and mechanical study on Mg–xLM (x = 0–5 wt.%, LM = Sn, Ga) alloys
  12. Weibull distribution application on temperature dependence of polyurethane storage modulus
  13. Hierarchical bismuth phosphate microspheres with high photocatalytic performance
  14. Influence of calcination temperature on sol–gel synthesized single-phase bismuth titanate for high dielectric capacitor applications
  15. People
  16. Prof. Dr. Wolfgang Bleck on the occasion of his 65th birthday
  17. DGM News
  18. DGM News
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