有机铋铜复盐对DNTF/HMX-CMDB推进剂燃烧性能的影响

Effect of Organic Bismuth-copper Compound on Combustion Performances of DNTF/HMX-CMDB Propellants

研究了有机铋铜复盐（Gal-BiCu）与炭黑、不同芳香族铜盐（Cu1和Cu2）及金属燃烧功能助剂（NB）复配对DNTF/HMX-CMDB推进剂燃烧性能的影响。分析了Gal-BiCu与其他催化剂复配后影响DNTF/HMX-CMDB推进剂燃烧行为的原因。结果表明,Gal-BiCu能有效调节DNTF/HMX-CMDB推进剂的燃烧性能,提高推进剂燃速,显著降低压强指数;当Gal-BiCu与炭黑、Cu1、NB复合时,催化性能更佳;NB质量分数为0.5%时,推进剂在8~20MPa较宽区间内出现平台燃烧,压强指数n≤0.2;8~15MPa区间内压强指数降至0.11。

The effect of combination of organic bismuth-copper compound(Gal-BiCu)with carbon black,different aromatic copper salts(Cu1and Cu2)and metal combustion functional additive(NB)on the combustion performances of DNTF/HMX-CMDB propellants was studied.The causes affecting the combustion behaviors of DNTF/HMXCMDB propellants after the combination of organic bismuth-copper compound(Gal-BiCu)with other catalysts were analyzed.The results show that Gal-BiCu can effectively regulate the combustion performance of the DNTF/HMXCMDB propellant,increase burning rates and significantly decrease the pressure exponent(n)of DNTF/HMX-CMDB propellants.When Gal-BiCu is combined with carbon black,Cu1 and NB,the catalytic performance is better.Plateau burning region with n≤0.2appears in the pressure range of 8-20 MPa when the mass fraction of NB is0.5% and the pressure exponent is reduced to 0.11 at 8-15 MPa.