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W. Karalus, J. R. Dąbrowski, M. Auguścik, J. Ryszkowska

Tribological properties of biodegradable polyurethanes of various structure and content of rigid elements

Polimery 2016, No 7-8, 509


DOI: dx.doi.org/10.14314/polimery.2016.509

Summary

Five polyurethanes (PUR) of different chemical structure and variable content of rigid elements have been synthesized using 4,4'-dicyclohexylmethane diisocyanate (HMDI), polycaprolactone diol (PCL) as well as ethylene glycol (GE) and glycerol (G) as chain extenders. The physicochemical properties of the obtained PUR have been investigated with the aid of infrared spectroscopy, differential scanning calorimetry (DSC) and thermogravimetry (TG). The mechanical properties (Shore hardness and tensile strength) and tribological characteristics (pin-on-disc tribometer) of PUR have been determined. The results of the study confirm the influence of structure and rigid segment content on the properties of PUR macromolecules, particularly their tribological characteristics.
Keywords: polyester urethanes, tribology, structure, rigid segments
e-mail: w.karalus@doktoranci.pb.edu.pl
W. Karalus, J. R. Dąbrowski, M. Auguścik, J. Ryszkowska (1.02 MB)
Tribological properties of biodegradable polyurethanes of various structure and content of rigid elements