摘要
利用DSC、TG和FTIR研究了纳米碳管对7 氨基 6 硝基苯并二氧化呋咱(CL 18)热分解的影响,结果发现,纳米碳管与活性炭对CL 18热分解特性的影响相似,第一分解峰无论是峰温、放热量还是活化能都没有发生改变,而第二分解峰温度值却升高了,活化能从原来的204.553kJ/mol减少到167.478kJ/mol.主要是由于纳米碳管与第一次分解所得的NO2发生了反应,从而减弱了NO2对类似苯环结构的剩余部分的催化作用,同时纳米碳管也稳定了类似苯环的自由基.
The effect of carbon nanotubes on the thermal decomposition of aminonitrobenzodifuroxan was investigated by means of DSC TG and FTIR. The results showed that it is similar to the effect of carbon on CL-18. The temperature and the value of activation energy in the first decomposition do not change. However,in the second decomposition the temperature rises, and the value of activation energy decreases from 204.553 kJ/mol to 167.478 kJ/mol. This is because the carbon nanotubes react with the nitro groups which are decomposed from the molecular structure of CL-18 in the first decomposition, so the catalysis of the nitro groups on the residue decreases, and at the same time they make the radical like benzofuroxan circle more stable.
出处
《燃烧科学与技术》
EI
CAS
CSCD
2004年第1期92-95,共4页
Journal of Combustion Science and Technology
基金
兵器预研基金资助项目(40406030502).
关键词
纳米碳管
苯并氧化呋咱
热分解
carbon nanotubes
benzofuroxan
thermal decomposition
