Effect of Humidity on the Thermal Stability of Red Pyrotechnic Composition

• DOI: 10.4028/www.scientific.net/amr.1030-1032.52
• Publication Date: 2014-09-22T11:54:29Z
• Authors: Shuo Shi; Lin Shuang Zhao
• Keywords: 01 natural sciences; 0104 chemical sciences

pyrotechnic mixtures are sensitivity with the influence of humidity and are susceptible to explosive decompositions. The aim of this paper is to provide thermal decomposition data under different humidity conditions. The method of TG-DSC simultaneous analysis has been used to study the thermal decomposition mechanism of a typical red pyrotechnic mixture. The kinetic parameters were calculated by kissinger method. The thermal stability is evaluated by decomposition peak temperature (Tm), mass loss (△m) and activation energy (E), which shows that the decomposition peak temperature and activation energy decreased obviously. Therefore, the thermal safety under humidity atmosphere become lower.