摘要: Effects of diammonium phosphate (DAP) on pyrolysis behaviour of paper-making reconstituted tobacco (PRT) were investigated by thermogravimetric-differential scanning calorimeter (TG/DSC) and thermogravimetric-Fourier transform infrared spectroscopy (TG/FTIR) in order to understand the role of DAP in PRT. TG/DSC results showed that the inclusion of DAP in PRT mainly affected the 3rd thermal decomposition process, by significantly promoting char formation and an increase in the heat release end temperature whereas the total heat release was markedly inhibited. DAP reduced significantly the deliveries of both carbonyl compounds and CH₃OH while CO level was increased sharply, especially at a higher temperature. The profile of NH₃ evolution was modified by DAP although the total peak area of NH₃ was not changed significantly. However, other gaseous products, including CO₂ and H₂O, remained almost constant. These findings agree with previous reports, which suggest that the inclusion of DAP in PRT enhanced the thermal stability of char and modified the evolution of the volatile products, especially carbonyl compounds. The information in this paper helps to understand the role of DAP in PRT, which could be useful to consider the application of DAP in PRT manufacture for quality improvement.