Study of the Environmental Humidity Influence on the Thermal Safety of the Pyrotechnic Compositions

In order to study the influence of the environmental humidity on thermal decomposition of pyrotechnic compositions, this experiment has been set up with artificial simulation environment of high humidity. The thermal analysis experiments have been done by using the integrated thermal analyzer. Thermal decomposition curves in the high humidity environmental conditions and the normal environmental conditions have been obtained. And the starting temperature, peak temperature, as well as the change rules of the activation energy in the decomposition reaction have been gotten, which shows that the thermal safety of the pyrotechnic compositions in the high humidity environment is lower.