摘要
采用吸收-压延方法制备了含4-硝基咪唑铅盐(PNI)的RDX/Al-CMDB推进剂样品,用靶线法测试了其燃速,研究了PNI与炭黑组成的二组元催化剂,PNI、炭黑和安定剂组成的三组元催化剂,PNI与不同种类铅盐组成的多组元催化剂对RDX/Al-CMDB推进剂燃烧性能的影响。结果表明,PNI是一种有效的含能燃烧催化剂;PNI与炭黑或β铅盐的混合物可使推进剂出现平台或麦撒燃烧;当PNI的质量分数为4.0%时,推进剂的压强指数降至0.07;1.0%PNI和2.5%β-Pb的混合物使推进剂的压强指数降至-0.13。含PNI改性双基推进剂的燃速可调,出现平台或麦撒区间。
The RDX/Al-CMDB propellants containing 4-initroimidazole lead salt （PNI）were prepared by an absorp-tion/rolling method.The burning rates of propellants were measured by a target line method.The effect of PNI/carbon,PNI/carbon/stabilizer,PNI/Pb salts on the combustion properties of RDX/Al-CMDB propellants were studied.The results show that PNI is an effective energetic burning catalyst.The combination of PNI with carbon black orβ-Pb salt makes the mesa effect or plateau of CMDB propellant appear.When the mass fraction of PNI is 4. 0%,it makes the pressure exponent of propellant decrease to 0.07.The combination of 1 .0% PNI and 2.5% β-Pb salt makes the pressure exponent of propellant decrease to -0.13.The burning rate of RDX/Al-CMDB propellants containing PNI is adjustable and can appear the plateau or mesa effect.
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2014年第4期70-73,共4页
Chinese Journal of Explosives & Propellants
基金
国家自然科学基金(21173163)
燃烧与爆炸技术重点实验室基金(9140C3503141006)
关键词
物理化学
PNI
固体推进剂
燃烧性能
压强指数
麦撒效应
平台效应
physical chemistry
PNI
solid propellant
combustion property
pressure exponent
mesa effect
plateau effect
