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在(2.0±0.1)MPa氩气氛围下六硝基六氮杂异伍兹烷(HNIW)在(204.0±0.5)、(208.0±0.5)、(212.0±0.5)和(216.0±0.5)℃下分别加热10、20、30、40、50和60min.采用元素分析、扫描电子显微镜(SEM)、傅立叶变换红外(FTIR)光谱仪、差示扫描量热(DSC)仪、热重-差示扫描量热仪-质谱(TG-DSC-MS)仪和热重-红外(TG-FTIR)仪对(208.0±0.5)℃下得到的残余物进行研究.结果表明,HNIW离子在210.0℃左右恒温热解60min后,残余物的组成为C2H2N2O.残余物中未分解的HNIW比初始HNIW稳定性差.在等温条件下,HNIW是逐步分解的.HNIW残余物的热分解分为三个阶段,第一个分解阶段主要为未分解的HNIW的热分解,第二阶段主要为五员环硝铵和碳氮杂环化合物的分解反应,第三阶段主要为五员环硝铵的分解反应和NO2的二次反应,并获得了每一个阶段的热分解产物.
HNIW at (2.0 ± 0.1) MPa was (204.0 ± 0.5), (208.0 ± 0.5), (212.0 ± 0.5) and Heated for 10, 20, 30, 40, 50 and 60 min.Using elemental analysis, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) (208.0 ± 0.5) ℃ were studied by TG-DSC-TG and TG-FTIR.The results showed that the HNIW ions were pyrolyzed at 210.0 ℃ for 60min The composition of the residue was C2H2N2O.The undecomposed HNIW in the residue was less stable than the initial HNIW.The HNIW was gradually decomposed under isothermal conditions.The thermal decomposition of theHNIW residue was divided into three phases, the first decomposition phase Mainly for the thermal decomposition of undissociated HNIW, the second phase is mainly the decomposition reaction of 5-membered ring ammonium nitrate and carbon nitrogen heterocyclic compounds, the third phase is the decomposition reaction of 5-membered ammonium nitrate and the secondary reaction of NO2, And obtained the thermal decomposition products of each stage.