THERMAL STABILITY AND DAMPING PROPERTIES OF POLYURETHANE HYBRID MATERIAL BASED ON CASTOR OIL

Authors

  • Jaroslava Budinski Simendić Faculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia
  • Zoran Bjelović Faculty of Technology, Zvornik, University of East Sarajevo, Karakaj bb, 75400 Zvornik, B&H
  • Suzana Samaržija Jovanović 3 Faculty of Natural Science and Mathematics, University of Pristina, Ive Lole Ribara 29, 38220 Kosovska Mitrovica, Serbia
  • Vojislav Aleksić Faculty of Technology, Zvornik, University of East Sarajevo, Karakaj bb, 75400 Zvornik, B&H
  • Helena Valentova Faculty of Natural Science and Mathematics, Charles University, Prague, Czech Republic
  • Katalin Meszaros Szecseny Faculty of Natural Science and Mathematics, Charles University, Prague, Czech Republic
  • Ivan Krakovsky Faculty of Natural Science and Mathematics, Charles University, Prague, Czech Republic

DOI:

https://doi.org/10.7251/COMEN1401064S

Abstract

This study reports the fabrication of environmentally friendly polyurethane materials using either 2,4-toluene diisocyanate or isophorone diisocyanate, castor oil as a polyol component, and TiO2 nanoparticles. Samples were prepared with stoichiometric balance of reactive groups. Dynamic viscoelastic properties of prepared samples were studied. The ratio of the loss component to the storage component (tanδ) was used as a measure of the material damping properties. The glass transition temperature was determined as a position of the tanδ curve maximum. The temperature range with tanδ > 0.3 was used to evaluate damping capacity of elastomers. Thermal stability of prepared samples was estimated by TGA method. It was assessed that PU based on aliphatic diisocyanate have higher thermal stability. Obtained values of the glass transition temperature and the starting degradation temperature are important for the application window of novel materials

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Published

2014-09-24

Issue

Vol. 5 No. 1 (2014): Contemporary Materials V-1

Section

Articles