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含能材料  2005 

纳米Cu粉对HMX和RDX热分解的催化作用

Keywords: 物理化学,热分解,纳米Cu粉,催化作用

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Abstract:

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1:1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。

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