Mechanical properties of thermoplastic polyurethanes prepared by reactivemixing with various polyester polyols and diisocyantes

The reactive mixing of thermoplastic polyurethane (TPU) has attracted lots of attentions due to the reaction at hightemperature, better mixing of the components, easier control of the reaction, as well as increasing the reaction speedand the elimination of the long reaction stage. In this study various methylene diphenyl diisocyanates (MDI),different polyester polyols and butandiol (BDO) chain extender and dibutyltin dilaurate (DBTDL) catalyst wereused to synthesize TPUs in an reactive internal mixer. Fourier transform infrared (FTIR) spectroscopy was used tochemical analysis of synthesized of TPUs. The mechanical properties of TPUs were examined using the tensiletesting method.

کلیدواژه ها:

Polyester polyol ، Methylene diphenyl diisocyanate ، (MDI) ، Reactive mixing ، Mecanical properties