Author(s): da Silva, José Eduardo Estevam [UNESP] ; Alarcon, Rafael Turra [UNESP] ; Gaglieri, Caroline [UNESP] ; Magdalena, Aroldo Geraldo [UNESP] ; da Silva-Filho, Luiz Carlos [UNESP] ; Bannach, Gilbert [UNESP]
Date: 2018
Persistent ID: http://hdl.handle.net/11449/179699
Origin: Oasisbr
Subject(s): Degradation; Methylene diphenyl diisocyanate; Non-isothermal kinetics; Polymerization; Thermal studies
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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.
Chemistry Department School of Sciences São Paulo State University (UNESP)
Chemistry Department School of Sciences São Paulo State University (UNESP)
