溶剂表面侵蚀对硝基胍发射药燃烧性能的影响  

Effect of solvent surface erosion on combustion performance of nitroguanidine propellant

作　　者：张福炀[1] 季丹丹[1] 廖昕[1] 王泽山[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094

出　　处：《南京理工大学学报》2014年第2期299-302,308,共5页Journal of Nanjing University of Science and Technology

摘　　要：为了改善硝基胍发射药的燃烧性能,利用溶剂对其表面进行物理侵蚀处理,在硝基胍发射药表面层100μm深度范围内形成不同的微孔结构表面。采用扫描电镜观察4种发射药样品的表面微观形貌,通过密闭爆发器实验获得4种发射药燃烧的压力-时间曲线,分析了发射药的燃烧性能变化。研究结果表明,经表面物理侵蚀制备的1#发射药样品质量损失为1.94%时,形成的微孔结构有利于提高发射药的综合燃烧性能,表面微孔结构降低了硝基胍发射药的燃速压力指数。In order to improve the combustion performance of nitroguanidine propellants,the physical solvent surface erosion is conducted,and the various micro-porous structures surface are formed in the 100 μm depth range of the nitroguanidine propellant surface layer. The surface micro-structure of four propellant samples are observed by scanning electron microscope,their combustion pressure-time curves are obtained by the closed bomb test,and the combustion performance changes of propellants are analyzed comparatively. The results show that,when the 1#propellant sample through physical solvent surface erosion losses 1. 94% mass,the formed microporous surface structures can improve the comprehensive combustion performance and reduce the burning-rate pressure exponent of nitroguanidine propellants.

关 键 词：硝基胍发射药 微孔结构 燃速压力指数 燃烧性能 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V512[航空宇航科学与技术—航空宇航推进理论与工程]