含能材料2022，Vol.30Issue(7)：694-702,9.DOI:10.11943/CJEM2022022
DAAzF对DAAF热性能的影响
Effect of DAAzF on the Thermal Performance of DAAF
摘要
Abstract
3,3'-Diamino-4,4'-azofurazan(DAAzF)is one of the main impurities that produced during the synthesis of 3,3'-di-amino-4,4'-azoxyfurazan(DAAF). However,the effect of DAAzF on the thermal performance of DAAF remains unclear in the past. To this end,a doping strategy based on the dissolution-precipitation method was developed to prepare DAAF@DAAzF ex-plosives by uniformly doping 0.5％-10％ DAAzF into DAAF, and the effect of DAAzF on the thermal performance of DAAF@DAAzF explosives was investigated by using simultaneous thermogravimetry and differential scanning calorimetry. The doping of DAAzF decreases the melting point of DAAF-based explosives,with the greatest decrease from 246.4 ℃ to 239.3 ℃occurring at 10％ DAAzF content. For the first time,it is found that the eutectic mixture can be formed when the mass ratio of DAAzF/DAAF is 5/95. Further, the presence of DAAzF decreases the activation energies and pre-exponential factors of DAAF-based explosives during the initial decomposition. Therefore,DAAzF as an impurity accelerates the thermal decomposi-tion of DAAF@DAAzF explosives and reduces their thermal stability.关键词
DAAF/DAAzF/热性能/DAAF@DAAzF炸药/杂质Key words
3,3'-diamino-4,4'-azoxyfurazan(DAAF)/3,3'-diamino-4,4'-azofurazan(DAAzF)/thermal performance/DAAF@DAAzF explosives/the impurity分类
军事科技引用本文复制引用
庄思琪,付小林,于谦,陈建波,刘渝,金波,黄辉..DAAzF对DAAF热性能的影响[J].含能材料,2022,30(7):694-702,9.基金项目
National Natural Science Foundation of China(No.21975235) （No.21975235）
