不同铋化合物对双基系推进剂燃烧性能的影响  

Effects of Different Bismuth Compounds on Combustion Properties of DB/CMDB Propellant

作　　者：赵凤起[1] 宋秀铎[1] 高红旭[1] 郝海霞[1] 姚二岗[1] 徐司雨[1] 仪建华[1] 

机构地区：[1]西安近代化学研究所燃烧与爆炸技术重点实验室,陕西西安710065

出　　处：《推进技术》2013年第1期135-139,共5页Journal of Propulsion Technology

基　　金：国家自然科学基金(21173163)

摘　　要：为研究环境友好型非铅类绿色燃烧催化剂的燃烧催化效果,对比5种不同铋化合物对双基系推进剂燃烧性能的影响。结果表明,芳香族的铋化物对双基推进剂有良好的催化作用,S-Gal-Bi对双基推进剂的燃烧催化效率最好,β-Bi可有效降低双基推进剂的压强指数。当含铋化合物双基推进剂中加入少量炭黑(CB)后,各催化剂的燃烧催化效率明显增强。β-Bi和CB复合,既能显著提高低压下的燃烧催化效率,又能降低高压下的压强指数。β-Bi/β-Cu/CB的复合不仅能提高双基推进剂低压下的燃速,而且也能使推进剂在高压区出现平台燃烧效应。S-Gal-Bi/CB的加入大大提高了RDX-CMDB推进剂的燃速,并显著降低了推进剂的压强指数,与少量的铜盐复合后推进剂燃速提高更多。To investigate the combustion catalytic effects of eco-friendly nonlead green combustion cata- lyzers, the effects of five kinds of bismuth compounds on combustion properties of double base （DB） or composite modifiered double base （CMDB） propellant were comparatively studied. The results show that ar- omatic bismuth compounds possess good catalytic effect on combustion of double-base propellant. S-Gal-Bi is among the best in respect of catalytic efficiency for the double-base propellants,β-Bi can effectively reduce the pressure exponent for the double-base propellant. When adding a small amount of carbon black （CB） to the double-base propellants containing bismuth compounds, the catalytic efficiency of every catalyst can be increased significantly. The mixture fl-Bi and CB can not only significantly improve the catalytic efficiency at low pressure, but also reduce the pressure exponent at high pressure range, fl-Bi/fl-Cu/CB composite can not only improve the burning rate of double-base propellant at low pressure range, but also appear the platform burning effect at the high pressure range. Adding S-Gal-Bi/CB can increase burning rate and reduce pressure index of the RDX-CMDB propellant significantly,and when a little copper salt is added, the propellant burning rate becomes higher.

关 键 词：物理化学 铋化合物 燃烧催化剂 双基系推进剂 

分 类 号：V435[航空宇航科学与技术—航空宇航推进理论与工程]