2HDNPPb恒容燃烧能的测定及其在RDX-CMDB推进剂中的应用  被引量:6

Determination on constant-volume combustion energy of 2-hydroxy-3,5-dinitropyridine lead salt and its application in RDX-CMDB propellant

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作  者:赵凤起[1] 高红旭[1] 罗阳[1] 宋秀铎[1] 郝海霞[1] 李上文[1] 

机构地区:[1]西安近代化学研究所,西安710065

出  处:《固体火箭技术》2005年第4期280-283,共4页Journal of Solid Rocket Technology

摘  要:利用精密转动弹热量计测定了2-羟基-3,5-二硝基吡啶铅盐(2HDNPPb)的燃烧能ΔcU,其结果为(-7 265.08±3.97)J/g。据此计算的标准摩尔燃烧焓和标准摩尔生成焓分别为(-4 425.81±2.43)kJ/mol和(-870.47±2.76)kJ/mol。利用均匀设计法,研究了2HDNPPb、2-羟基-3,5-二硝基吡啶铜盐(2HDNPCu)和炭黑(CB)在RDX-CMDB推进剂燃烧中的复合催化作用,发现当3种组分的加入量分别为1.0%、0.6%和0.6%时,推进剂在所测压强范围内有最高燃速,并且压强指数较低。The constant-volume combustion energy( Δc U) of 2-hydroxy-3,5-dinitropyfidine lead salt (2HDNPPb) was determined by a precision rotating bomb calorimeter at 298.15K,which is equal to ( - 7 265.08 ± 3.97 ) J/g. Calculation value of its standard molar combustion enthalpy ( ΔcH^θm ) and standard molar formation enthalpy (ΔcH^θm ) were ( -4 425.81±2.43) kJ/mol and ( -870.47± 2.76) kJ/mol respectively. The catalysis of composite catalyst system (2HDNPPb,2HDNPCu and carbon black) in the combustion of RDX-CMDB propellant was investigated by uniform design method. The propellant containing 1.0% 2HDNPPb,0.6% 2HDNPCu and 0. 6% carbon black possesses better combustion performances with-in the certain pressure range, such as the highest burning rate and the lower pressure exponent.

关 键 词:2-羟基-3 5-二硝基吡啶铅盐 含能催化剂 燃烧能 RDX-CMDB推进剂 

分 类 号:V512[航空宇航科学与技术—航空宇航推进理论与工程]

 

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