New thermal study of polymerization and degradation kinetics of methylene diphenyl diisocyanate

作者：Estevam da Silva Jose Eduardo; Alarcon Rafael Turra; Gaglieri Caroline; Magdalena Aroldo Geraldo; da Silva Filho Luiz Carlos; Bannach Gilbert^*

来源：Journal of Thermal Analysis and Calorimetry, 2018, 133(3): 1455-1462.

DOI：10.1007/s10973-018-7211-1

• Polymerization
• Degradation
• Methylene diphenyl diisocyanate
• Non-isothermal kinetics
• Thermal studies

This work investigates the thermal polymerization process of a methylene diphenyl diisocyanate (MDI) monomer as well as its thermal degradation following the ICTAC recommendations. MDI monomer is widely used as a synthetic resin in the production of MDF panels, as it provides compaction of the eucalyptus fibers by polymerization. Thermogravimetry/derivative thermogravimetric-differential thermal analysis (TG/DTG-DTA), differential scanning calorimetry, and mid-infrared spectroscopy were used in this study. The polymerization process (An) and degradation (Fn) process exhibited activation energy equal to 149.70 and 80.22 kJ mol(-1), respectively. The combined the FTIR and kinetic information makes it possible to suggest the mechanism reaction, which is an inedited data in literature.

• 出版日期2018-9