Effects of Copper Salts on Combustion Characteristics of RDX-CMDB Propellant

The effects of six copper salts,including DBC,CNI,NT-Cu,B-Cu,S-Cu,A-Cu,and the mixture of copper and carbon black on the combustion characteristics of RDX-CMDB propellant were studied in detail.The quenched surfaces for the propellant were analyzed by SEM and elemental analyses.The results show that the copper salts can decrease the combustion pressure exponent of the propellants in the pressure range of 16-22MPa.The copper salts and the mixture of copper and carbon black unobviously affect combustion characteristics of RDX-CMDB propellant in the pressure range of 10-22MPa.Copper salts and the mixtures of copper salts and carbon black can promote RDX-CMDB propellant combustion further.