铜盐对RDX-CMDB推进剂燃烧性能的影响

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

研究了6种铜盐(DBC、CNI、NT-Cu、B-Cu、S-Cu、A-Cu)以及铜盐/炭黑复配体系对RDX-CMDB推进剂燃烧性能的影响,用扫描电镜和元素分析测试了推进剂的熄火表面。结果表明,铜盐可降低RDX-CMDB推进剂在16～22MPa的压强指数;在10～22MPa,铜盐和铜/炭黑混合物对RDX-CMDB推进剂燃烧特性的影响不显著。铜盐催化剂以及铜盐和炭黑复配催化剂对推进剂的燃烧反应有一定的促进作用。

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.