纳米金属粉对HMX热分解特性的影响  

Effect of nano metal powder on the thermal decomposition characteristics of HMX

作　　者：江治[1] 李疏芬[1] 赵凤起[2] 陈沛[2] 阴翠梅[2] 李上文[2] 

机构地区：[1]中国科学技术大学化学物理系,安徽合肥230026 [2]西安近代化学所,陕西西安710065

出　　处：《推进技术》2002年第3期258-261,共4页Journal of Propulsion Technology

基　　金：国家自然科学基金 (5 9986 0 0 3);国家重点实验室基金

摘　　要：运用高压差示扫描量热法和热重法研究了普通级以及纳米级的铝、镍、铜金属粉对于HMX热分解特性的影响 ,结果表明 ,纳米铜对于HMX的凝聚相分解作用最明显 ,且这种催化作用会由于纳米铜含量的减少或体系压强的增大而变弱。基于恒温DSC实验数据计算得到的活化能结果 ,提出了纳米铜对于HMX热分解的一次催化 。The thermal decomposition characteristics of HMX influenced by the addition of aluminum, nickel, copper with different particle size (general and nano) were studied by PDSC and TG. The result shows that the nano copper have the greatest influence on the properties of condensed-phase decomposition of HMX among the metal powders. Such catalysis effect of nano copper will be weakened by the decrease of the content of nano copper or the increase of the system pressure. Based on the kinetics result inferred from the isothermal DSC data, these catalysis mechanisms are described to the efficacy of first catalysis, secondary catalysis and reaction site effect of nano copper on HMX.

关 键 词：固体火箭推进剂 纳米金属粉 奥克托今 燃烧催化剂 热分解 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]