1,1′-二羟基-5,5′-联四唑二羟胺盐(TKX-50)研究进展

Review on Dihydroxylammonium 5,5′-Bistetrazole-1,1′-diolate(TKX-50)

1,1’-二羟基-5,5’-联四唑二羟胺盐(TKX-50)是目前引起广泛关注的新型含能离子盐。综述了TKX-50相关研究进展,包括其分子合成、晶体结构及相变、热力响应特性、爆轰性能、安全性、相容性及毒性。TKX-50因具有易合成、能量高、机械感度低和毒性低的优点而有一定的应用潜质。但是,与传统的CHNO含能材料相比,TKX-50具有不同的晶体组成、晶体中粒子间相互作用、热力性质及其内在本质,其不太理想的热安定性和相容性将限制其应用。这表明,以TKX-50为代表的含能离子盐的热力响应机制和释能机制可能不同于传统CHNO含能材料,有待于进一步研究。

Dihydroxylammonium 5,5’-bistetrazole-1,1’-diolate(TKX-50),as a new energetic ionic salt,is currently attracting considerable attention. The latest progress of the researches on TKX-50 is reviewed in this article,covering molecular synthesis route,crystal structure and phase transition,thermomechanical response characteristic,detonation performance,safety,compatibility and toxicity. TKX-50 possesses an applicable potential due to its advantages of ready synthesis,high energy,low mechanical sensitivity and low toxicity. However,in contrast to the conventional CHNO energetic materials,because of the different composition and inter-particle interaction of TKX-50,it possesses different thermo-mechanical properties and related origins.It is noted that the unsatisfactory thermal stability and compatibility may be an important fact constraining its application;and the thermo-mechanical response mechanism and energy release mechanism of energetic ionic salts like TKX-50 are different from those of traditional energetic materials composed of neutral CHNO molecules. All these require further insights.