| 摘要: |
| 采用热重实验(TG)、差示扫描量热实验(DSC)和气体(固体)原位反应池/快速扫描傅里叶变换红外光谱(RSFTIR)联用技术,研究了3,3′-二硝基-4,4′-氧化偶氮呋咱(DNOAF)的热分解特性。结果表明:DNOAF的热分解特性对压强敏感,随着压强的升高,DNOAF的热分解放热峰温呈降低趋势。其热分解气体中具有红外活性的有CO2,N2O,NO,NO2,CO和DNOAF蒸汽;凝聚相热分解产物主要为碳,其中还含有少量的氰酸酯基-O-C≡N。在实验基础上提出了DNOAF的热分解历程,DNOAF的热分解首先发生在呋咱环间的C-N键,然后是呋咱环的开环分解。 |
| 关键词: 固体推进剂 呋咱+ 热分解 高能燃料 |
| DOI： |
| 分类号:V512 |
| 基金项目:国家自然科学基金委员会—中国工程物理研究院“NSAF”联合基金(10376042);火炸药燃烧国防科技重点实验室基金(51455010104KG0101);教育部博士点基金(2006998005) |
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| Thermal decomposition of 3,3′-diamino-4,4′-azoxyfurazan (DNOAF) |
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ZHANG Xing-gao1, ZHANG Wei2, ZHU Hui3, YANG Shi-qing4, WANG Chun-hua5, ZHANG Jun-qi6, ZHAO Feng-qi7, XU Si-yu8
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1.Inst.of Aeronautic and Material Engineering,National Univ.of Defence Technology,Changsha 410073,China;2.Inst.of Aeronautic and Material Engineering,National Univ.of Defence Technology,Changsha 410074,China;3.Inst.of Aeronautic and Material Engineering,National Univ.of Defence Technology,Changsha 410075,China;4.Inst.of Aeronautic and Material Engineering,National Univ.of Defence Technology,Changsha 410076,China;5.Inst.of Aeronautic and Material Engineering,National Univ.of Defence Technology,Changsha 410077,China;6.Inst.of Aeronautic and Material Engineering,National Univ.of Defence Technology,Changsha 410078,China;7.Xi’an Modern Chemistry Research Inst.,Xi’an 710065,China;8.Xi’an Modern Chemistry Research Inst.,Xi’an 710066,China
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| Abstract: |
| The thermal decomposition characteristics of 3,3′-dinitro-4,4′-azoxyfurazan（DNOAF） were investigated by using themogravimetry（TG）,differential scanning calorimetry（DSC） and gas（solid） in-situ thermolysis rapid scanning fourier transform infrared spectrascopy（RSFTIR） coupling technique.The results show that the thermal decomposition characteristics of DNOAF is sensitive to pressure.The thermal decomposition peak temperature of DNOAF is reduced as the increase of the pressure.The IR active gas products of DNOAF are CO2,N2O,NO,NO2,CO and DNOAF.The solid prodoucts are mainly carbon,with small amount of-O-C≡N.The possible thermal decomposition mechanism of DNOAF is presented based on the experiments.The primary step in the thermal decomposition of DNOAF is the disconnection of C-N bond between the furazan rings,followed by the step for the opening of the furazan rings. |
| Key words: Solid propellant Furazan+ Thermal decomposition High energy fuel |
