A Simple Method to Estimate the Critical Temperature of Thermal Explosion for Energetic Materials Using Nonisothermal DSC

A method for estimating critical temperature (T b) of thermal explosion for energetic materials was derived from Semenov's [9 Semenov , N. N. 1958 . On Some Problems of Chemical Kinetics and Reactivity . Moscow : Ind AN SSSR . [Google Scholar]] thermal explosion theory and the nonisothermal kinetic equation based on Berthelot's expression using reasonable hypotheses. The final formula is , which is simple. We can easily obtain the onset temperature (T ei) from the nonisothermal DSC curves, the value of T e0 from the equation , the values of b from the equation , and then calculate the value of T b. The result obtained with this method coincides completely with the value of T b obtained by Zhang et al.'s [4 Zhang , T. L. , R. Z. Hu , Y. Xie , and F. P. Li . 1994 . The estimation of critical temperature of thermal explosion for energetic materials using non-isothermal DSC . Thermochimica Acta , 244 ( 2 ): 171 – 176 . [Google Scholar]] method.