7-氨基-6-硝基-4,5-二氧化呋咱的热分解特性

推进技术 ›› 2004, Vol. 25 ›› Issue (1): 89-92.

7-氨基-6-硝基-4,5-二氧化呋咱的热分解特性

张维,王建龙,李杰,罗运军,谭惠民

北京理工大学材料科学与工程学院北京100081;北京理工大学材料科学与工程学院北京100081;北京理工大学材料科学与工程学院北京100081;北京理工大学材料科学与工程学院北京100081;北京理工大学材料科学与工程学院北京100081

发布日期:2021-08-15

Thermal decomposition of aminonitrobenzodifuroxan

Coll. of Materials Science and Engineering, Beijing Inst. of Technology, Beijing 100081, China;Coll. of Materials Science and Engineering, Beijing Inst. of Technology, Beijing 100081, China;Coll. of Materials Science and Engineering, Beijing Inst. of Technology, Beijing 100081, China;Coll. of Materials Science and Engineering, Beijing Inst. of Technology, Beijing 100081, China;Coll. of Materials Science and Engineering, Beijing Inst. of Technology, Beijing 100081, China

Published:2021-08-15

摘要/Abstract

摘要： 利用差示扫描量热法(DSC)、热失重法(TG)和傅里叶变换红外光谱法(FTIR)研究了7 氨基 6 硝基 4,5 二氧化呋咱(CL 18)的热分解性能。结果发现CL 18在分解之前无熔融转变,属于固态分解。在低升温速率下整个反应分两步进行,首先是不稳定的硝基和一个呋咱环的自由基分解,然后是相对较稳定的苯并氧化呋咱环的受热分解,两步反应的活化能分别为167 68kJ/mol和204 55kJ/mol,分解产物二氧化氮在整个分解过程中都起着氧化和催化作用。在高升温速率下仅仅表现为一步放热反应。最终固态分解产物主要为碳,其中含有少量氮、氢等。

关键词: 高能燃料;氧化剂;热分解

Abstract: The thermal decomposition behavior of aminonitrobenzodifuroxan (CL-18) was studied by DSC, TG and FTIR. The results show that CL-18 does not fuse before its decomposition. Its decomposition takes place in solid state. At lower heating rate, the thermal decomposition of CL-18 consists of two exothermal reactions: (1) the decomposition reaction of nitro group and the ring opening reaction of one furoxan circle is at 198.1℃, and (2) the decomposition of relatively stable benzofuroxan circle residues is at 199.1℃. The activation energy of the two reactions is about 167.68 kJ/mol and 204.55 kJ/mol respectively. In the whole decomposition, nitrogen dioxide produced in decomposition takes oxidation and catalysis. Only one exothermic reaction takes place at higher heating rate.

Key words: High energy fuel;Oxidizer;Thermal decomposition

张维,王建龙,李杰,罗运军,谭惠民. 7-氨基-6-硝基-4,5-二氧化呋咱的热分解特性[J]. 推进技术, 2004, 25(1): 89-92.