Research of Calculating Decomposition Activation Energy of Single-base Propellant with Kissinger Method

摘要

From the TG/DSC testing data, solving the decomposition activation energy of three kinds of single-base propellant with Kissinger method, in the condition of different heating rate and adding in heat preservation stage. The outcome is demonstrated through the Ea value with Ozawa method, and the veracity of Ea value calculated with Kissinger method is discussed. Ea(K) and Ea(O)of three kinds of samples in the condition of adding in heat preservation stage are similar, with a difference of 2-6 kJ/mol which is within allowable error scope of thermal analysis kinetics, and Ea(K)and Ea(O)of three kinds of samples in the condition of removing heat preservation stage are similar, with a difference of 2-4 kJ/mol. The reliability of solving the decomposition activation energy of single-base propellant with Kissinger method gets further verification. The decomposition activation energy without heat preservation stage is more accurate