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Synthesis and Characterization of a Novel Explosive HMX/BTNEN (2 : 1) Cocrystal
Author(s) -
Zohari Narges,
Mohammadkhani Faezeh Ghiasvand,
Montazeri Mahnaz,
Roosta Saeed Tavangar,
Hosseini Seyed Ghorban,
Zaree Mohammad Ali
Publication year - 2021
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.202000202
Subject(s) - cocrystal , detonation , explosive material , melting point , detonation velocity , materials science , hydrogen bond , characterization (materials science) , sensitivity (control systems) , powder diffraction , intermolecular force , crystallography , chemical engineering , chemistry , organic chemistry , nanotechnology , composite material , molecule , electronic engineering , engineering
In the field of energetic materials, cocrystallization is a new strategy to modify the properties of existing energetic materials. N,N‐ Bis (Trinitroethyl) nitramine (BTNEN), is a known energetic material which possesses high sensitivity and detonation performance. In order to reduce its sensitivity, a novel cocrystal of BTNEN/HMX was successfully prepared and characterized. The cocrystal has a melting point of 155 °C which is lower than the melting point of HMX (275 °C) and higher than pure BTNEN (94 °C). The SEM images revealed that the cocrystal has got a plate morphology, which is different from its pure components. The shifts in the FT‐IR spectrum of the cocrystal in comparison to the pure substances prove the formation of intermolecular hydrogen bonding. Powder X‐ray diffraction (PXRD) spectra revealed that the cocrystal is different from the raw materials. In addition, impact sensitivity test confirmed that the sensitivity of BTNEN/HMX was effectively decreased in comparison to BTNEN. The density of the product was measured to be 1.93 g cm −3 and based on the density value, the detonation velocity and detonation pressure were calculated to be 9.38 km s −1 and 42.95 GPa, respectively.