Thermal Decomposition Kinetics of Triethylene Glycol Dinitrate

Introduction Triethylene glycol dinitrate (TEGDN) is a novel en-ergetic material containing two groups of NO2, which can be used as an energetic plasticizer ingredient in propellants because of its excellent proformance.1 It exhibits lower impact sensitivity, better thermostability, weaker poisonousness and volatility, and stronger effec-tiveness of plasticizing cellulose nitrate than nitroglyc-erine (NG). As a new plasticizer TEGDN has good ap-plication prospects in the near future. The…

Thermal Decomposition Kinetics of Triethylene Glycol Dinitrate

The thermal behavior and kinetic parameters of the decomposition reaction of triethylene glycol dinitrate (TEGDN) in a temperature‐programmed mode at different pressures (0.1, 2, 4 and 6 MPa) have been investigated by means of DSC and TG‐DTG. The results show that the properties of the thermal decomposition of TEGDN are affected by the change of pressure, and the kinetic model function, the apparent activation energy E_a. and pre‐exponential factor A of this reaction are 2(1?α)?ln(1?α)]^1/2, 106.54 kJ·mol^?1 and 10^9.17s^?1 at 0.1 MPa, and 120.82 kJ·mol^?1 and 10^10.56 s^?1 at 2 MPa, respectively. The critical temperature of thermal explosion of TEGDN obtained by the values T_eo and T_po of the onset temperature T_e and the peak temperature T_p when the heating rate tends to zero are 191.05, 209.86 °C at 0.1 MPa, 207.59 and 221.65 °C at 2 MPa, respectively.