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Approaching the Thermostability Limit of Nitrogen-Rich Heterocyclic Perchlorate-Based Energetic Materials
Xiue Jiang1, Dangyue Yin1, Mingren Fan1
1School of Astronautics, Northwestern Polytechnical University, Xi'an, Shanxi 710065, China.
Abstract:
In recent years, driven by ever-increasing application of energetic materials in deep-seated mineral resource exploitation and aerospace engineering, the mining of advanced safe energetic materials with significant thermal stability has drawn widespread publicity. Here, a tricyclic bridged energetic compound 2-amino-4,6-bis(3,5-diamino-4-nitropyrazol-1-yl)-1,3,5-triazine (NPX-03) was prepared using simple synthetic route. Furthermore, an interesting highly thermostable nitrogen-rich perchlorate, NPX-03·2HClO, was prepared by the self-assembly reaction of NPX-03 and HClO4, displaying a thermal decomposition peak temperature of 375.9 °C. Moreover, NPX-03·2HClO exhibits good detonation velocity (D = 8187 m s-1) and insensitivity (IS = 50 J, FS > 360 N), thereby being promising candidates for advanced insensitive high-energy materials.
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