A new sulfur-containing laser-sensitive primary explosive based on thiazole-4-carbohydrazide

Chao Zhang, Ting wei Wang, Zu jia Lu, Zhen xin Yi, Mei qi Xu, Yan Li, Qi yao Yu, Zhi min Li, Jian guo Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This study effectively synthesized thiazole-4-carbohydrazide (SZCA) and its ionic salt SZCA·HClO4 and energetic complex Cu(SZCA)2(ClO4)2 (ECC-1). The new compound SZCA, SZCA·HClO4 and ECC-1 were fully characterized through elemental analysis, infrared spectroscopy, 13C NMR spectroscopy and thermal stability analysis. The combustion heat of ECC-1 was measured by oxygen bomb calorimetry, and its detonation performance was predicted by Kamlet-Jacobs formula and EXPLO5, respectively. The mechanical sensitivity of ECC-1 was tested using BAM method. In particular, we comprehensively evaluated the initiation ability of ECC-1 through lead plate destruction experiment and laser initiation experiment. The results show that ECC-1 have a decomposition temperature of 236 °C, exhibits acceptable mechanical sensitivity (impact sensitivity: 3.4 J, friction sensitivity: 4 N), and decent detonation properties (D: 6.6 km s−1, P: 21.3 GPa). And ECC-1 could be initiated by a single-pulse laser (λ: 808 nm, P: 20 W, t: 3 ms), and successfully detonated the next charge, such as RDX and CL-20.

Original languageEnglish
Pages (from-to)191-198
Number of pages8
JournalEnergetic Materials Frontiers
Volume5
Issue number3
DOIs
Publication statusPublished - Sept 2024

Keywords

  • Energetic complex
  • Laser sensitivity
  • Primary explosive
  • Thiazole-4-carbohydrazide

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