重结晶工艺对1,1'-二羟基-5,5'-联四唑二羟胺盐热性能和机械感度的影响  

Influence of Recrystallization Process on the Thermal Properties and Mechanical Sensitivity of Dihydroxylammonium 5,5'-Bistetrazole-1,1'-diolate(HATO)

作　　者：许诚[1] 张敏[1] 赵娟[1] 毕福强[1] 王克勇[1] 祝艳龙 崔荣[1] 葛忠学[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《含能材料》2017年第5期409-412,共4页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金资助(21503162)

摘　　要：为了研究不同重结晶工艺对1,1'-二羟基-5,5'-联四唑二羟胺盐(HATO,TKX-50)热性能和机械感度的影响,分别采用降温法、溶剂-非溶剂法,制备了6种不同粒径和晶体形貌的HATO样品。利用激光粒度仪和扫描电镜对不同重结晶工艺所得HATO样品的粒度和形貌进行了表征。利用差示扫描量热仪(DSC)对其热分解性能进行了分析。按GJB772A-1997方法对其撞击、摩擦感度进行了测试。结果表明,不添加表面活性剂,利用降温重结晶制备的HATO样品其粒度最大(d50=196.5μm)且晶体表面光滑、形状规则,表现出最高的分解温度及较低的机械感度,其分解峰温为249.1℃,撞击感度、摩擦感度分别为8%、20%。To study the effect of recrystallization process on fhe thermal properties and mechanical sensitivity of dihydroxylammonium 5,5′-bistetrazole-1,1′-diolate（HATO, TKX-50）, Six kinds of HATO samples with different particle size and morphology were prepared using falling temperature method and solvent-nonsolvent method respectively. The particle size and morphology of HATO samples obtained by different recrystallization process were characterized by laser granularity instrument and scanning electron microscope（SEM）. The thermal decomposition properties was analyzed by means of differential scanning calorimeter（DSC）. Its impact and friction sensitivities were were measured by GJB772A-97 method. The results show that HATO samples without addition of surfactnt obtained by falling temperature method have maximum particle sizes（d50=196.5 μm）, the crystal surface is smooth and the shape is regular, showing the highest decomposition temperature and the lowest mechanical sensitivity. Its decomposition peak is 249.1 ℃. The impact and friction sensitivities are 8% and 20% respectively.

关 键 词：1 1'-二羟基-5 5'-联四唑二羟胺盐(HATO TKX-50) 粒度 形貌 感度 热性能 

分 类 号：TQ560.6[化学工程—炸药化工]