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. and pre-exponential factor A of this reaction are 2(1-alpha) [-ln(1-alpha)](1/2), 106.54 kJ.mol(-1) and 10(9.17) s(-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 degreesC at 0.1 MPa, 207.59 and 221.65 degreesC at 2 MPa, respectively.