纳米Cu粉对HMX和RDX热分解的催化作用  

Catalysis of Nano Cu Powder on the Thermal Decomposition of HMX and RDX

作　　者：范夕萍[1] 王霞 刘子如[3] 谭惠民[1] 

机构地区：[1]北京理工大学材料科学与工程学院,北京100081 [2]济南外国语学校化学组,山东济南250001 [3]西安近代化学研究所,陕西西安710065

出　　处：《含能材料》2005年第5期284-287,共4页Chinese Journal of Energetic Materials

摘　　要：采用DSC、PDSC、TG-DTG探讨了纳米金属Cu粉对HMX、RDX热分解的催化作用。结果表明,纳米Cu粉对HMX的固相分解和RDX液相分解的加速作用明显。随着纳米金属Cu粉含量的增加,HMX的固相分解逐渐提前,当HMX与纳米Cu粉的质量比为11时,HMX固相分解的开始温度提前25.5℃;常压下纳米金属Cu粉使RDX的液相分解的分解峰温从239.1℃提前到220.9℃。Cu粉的稀释和分散(或散热)作用使放热焓下降。The catalysis of nano Cu powder on the thermal decomposition of HMX and RDX was investigated by using DSC,PDSC and TG-DTG. The results show that thermal decomposition of solid phase for HMX and liquid phase for RDX is accelerated appar- ently due to the nano Cu powder. The solid phase thermal decomposition temperature of HMX decreases 25.5 ℃ when the mass ratio of HMX with nano Cu is 1 ： 1. The liquid phase decomposition temperature of RDX accelerates from 239.1 ℃ to 220.9 ℃. The decrease of exothermic enthalpy is due to the dilution and dispersion function of the nano Cu powder.

关 键 词：物理化学 热分解 纳米Cu粉 催化作用 纳米金属 催化作用 HMX RDX 热分解 Cu 液相分解 TG-DTG PDSC 

分 类 号：TB383[一般工业技术—材料科学与工程]