CL-20的催化热分解行为及非等温分解反应动力学  

Thermal Decomposition Behavior and Non-isothermal Decomposition Reaction Kinetics of CL-20 with Leads Salts as Catalyst

作　　者：徐劲祥[1] 

机构地区：[1]北京理工大学宇航科学技术学院,北京100081

出　　处：《火炸药学报》2007年第5期36-41,共6页Chinese Journal of Explosives & Propellants

摘　　要：在程序升温条件下,用DSC、TG研究了CL-20、CL-20/PbCO3、CL-20/邻苯二甲酸铅(φ-Pb)和CL-20/2,4-二羟基苯甲酸铅(β-Pb)体系的热分解行为。采用6种微分、积分动力学分析方法计算了它们的热分解反应动力学参数。结果表明,CL-20、CL-20/φ-Pb、CL-20/β-Pb的热分解机理函数均为Avrami-Erofeev方程,其微分形式为f(α)=4(1-α)[-ln(1-α)]3/4,分解机理是随机成核和随后生长,n=1/4。The thermal behavior and kinetic parameters of the exothermic decomposition reaction of hexanitrohexaazaisowurtzitane （CL-20） and systems CL-20/PbCO3, CL-20/φ-Pb and CL-20/β-Pb in a temperature-programmed mode have been investigated by means of DSC and TG-DTG. In order to obtain their kinetic parameters of the decomposition reaction, the six differential and integral methods were employed. The results show that the kinetic model function in differential form is f（a）= 4 （1- a）[-In （1- a）]^3/4 and the mechanism of the exothermic decomposition reaction of CL-20, CL-20/φ-Pb and CL-20/β-Pb is nucleation and growth mechanism（Avrami-Erofeev equation n=1/4）.

关 键 词：物理化学 CL-20 热分解行为 动力学参数 

分 类 号：TQ564[化学工程—炸药化工]