The examination of nitrocellulose (NC) and polytetrafluoroethylene (PTFE) , and their influences on the combustion characteristics of Ba(NO3)2/Mg were studied experimentally, using IGA-140 non contact far-infrared thermometer and transient intensity testing instrument. The results revealed that the burn temperature, lumionous intensity and burn rate of the pyrotechnic mixtures with NC (1432.6℃, 49140.3cd, 9.0mm/s) were all larger than the PTFE system (1248.4℃ ,32439.8cd, 7.3mm/s), which is due to the differences in the decomposition progress between the two additives, so that led to substantial differences in the loss of reaction energy.
pyrotechnic mixtures, additives, combustion characteristics