Adjustment on the combustion performance of low flame temperature and low burning rate double base propellant

To adjust the combustion performances of low flame temperature and low burning rate propellants, some catalysts, shch as lead salts, copper salts, carbon black and assistant plasticizer were appended into four low buring rate formulations, whose theoretical flame temperature ranged from 900K to 1700 K, and the function of the catalysts and their additive amount were tested. The results show that those usual catalysts can also work upon low flame temperature and low burning rate DB propellants. The variety of catalysts have different effects on burning rate and pressure exponent, and the combined catalysts can improve the combustion performance obviously. Besides, assistant plasticizer can also affect the combustion performance.