物理化学学报2009，Vol.25Issue(5)：981-986,6.
六硝基六氮杂异伍兹烷及其残余物的热分解
Thermal Decomposition of Hexanitrohexaazaisowurtzitane and Its Residues
摘要
Abstract
Hexanitrohexaazaisowurtzitane(HNIW)particles were heated isothermally at(204.0±0.5),(208.0±0.5),(212.0±0.5),and(216.0±0.5)℃for 10,20,30,40,50,and 60 min under(2.0±0.1)MPa pressure in an argon atmosphere.Residues obtained at(208.0±0.5)℃ were studied by elemental analysis,scanning electron microscopy(SEM),Fourier transform infrared (FTIR)spectroscopy,differential scanning calorimetry(DSC),thermogravimetry-differential scanning calorimetry-mass spectrometry (TG-DSC-MS)and thermogravimetry-Fourier transform infrared (TG-FTIR)spectroscopy.Results showed that after isothermal decomposition of HNIW crystals at about 210.0 ℃ for 60 min residues were formed with an average molecular formula of C2H2N2O.Unreacted HNIW is present in the residue and is more thermally unstable than the original HNIW.We confirmed that HNIW crystals decomposed stepwise under isothermal conditions.Three stages were found to exist during the thermal decomposition of HNIW residues.The first decomposition stage consists of an initial decomposition of unreacted HNIW,the second stage comprises an elimination reaction of five-membered ring amides and nitrogen hemrocyclic compounds and in the third stage five-membered ring amides are degraded and secondary reactions involving NO2 occur.The main gaseous products in every stage are discussed.关键词
六硝基六氮杂异伍兹烷/热分解/残余物/TG-DSC-MS/TG-FTIR/FTIRKey words
Hexanitrohexaazaisowurtzitane/Thermal decomposition/Residue/TG-DSC-MS/TG-FTIR/FTIR分类
化学化工引用本文复制引用
董林茂,李晓东,杨荣杰..六硝基六氮杂异伍兹烷及其残余物的热分解[J].物理化学学报,2009,25(5):981-986,6.基金项目
总装备部预研项目(41328030403)资助 （41328030403）
