摘要
采用原位红外光谱研究了炸药1，3，5，7．四硝基．1，3，5，7．四氮杂环辛烷（HMX）在5，10，20，40℃·min^-1四种不同升温速率下的热分解行为。研究结果表明：随着温度的升高，C-N键的断裂速率远高于N-N键的断裂速率，表明C-N键的断裂是HMX的主要断键方式，在C-N键的断裂中伴随着N-N键的断裂。在5℃·min^-1升温速率下，断裂的HMX环发生分子内结合，在10，20，40℃·min^-1升温速率下，断裂的HMX发生分子间成环，重新形成稳定的八元环结构.
Thermal decomposition of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine （ HMX ） in condensed state heated with 5℃·min^-1 ,10 ℃·min^-1 ,20℃·min^-1 and 40℃·min^-1, respectively, was investigated by in-situ FTIR spectroscope. The resuhs show that with increasing temperature, the rupture rate of C-N bond is faster than that of N-N bond, which verifies that the cleavage of C-N bond is dominant rupture form. Intramolecular cyclization occurs in breakage of HMX with heating rate of 5 ℃·min^-1 , and intermolecular cyclization appears with heating rate of 10 ℃·min^-1,20℃·min^-1 and 40℃·min^-1.
出处
《含能材料》
EI
CAS
CSCD
2005年第B12期23-26,共4页
Chinese Journal of Energetic Materials
关键词
分析化学
HMX
凝聚相
升温速率
原位
红外光谱
analytical chemistry
HMX
condensed state
heating rate
in-situ
FTIR spectroscope
