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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2018022517
pages 321-328

INSENSITIVE CL-20/CYCLOTETRAMETHYLENETETRANITRAMINE (HMX) CO-CRYSTALS WITH HIGH PERFORMANCE BY ULTRASONIC IN SOLVENT

Changkun Song
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China
Chongwei An
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China
Yuruo Zhang
The 213th Research Institute of China Ordnance Industry, Xi'an, Shaixi China, 710061, P.R. China
Baoyun Ye
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China
Hequn Li
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China
Jingyu Wang
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China

RÉSUMÉ

CL-20/cyclotetramethylenetetranitramine (HMX) co-crystal explosive in a 2:1 molar ratio was prepared by liquid-phase ultrasonic method. A polarized optical microscope (POM) was used to characterize the particle size and morphology. X-ray diffraction (XRD) and differential scanning calorimetry (DSC) were utilized to determine whether the co-crystal explosive was prepared. Furthermore, the impact sensitivity of co-crystal explosive was tested and analyzed. The results show that the prepared sample is not the mix of CL-20 and HMX but rather CL-20/HMX co-crystal explosive. The particle size of co-crystal explosive is about 20 μm and it exhibits a plate-like morphology. The peak decomposition temperature of co-crystal explosive is 246.31°C, which is 4.53°C lower than that of CL-20. Its thermal decomposition enthalpy is 151 J/g less than CL-20. It can be concluded that its thermal security is approximately the same as CL-20. The characteristic height of CL-20/HMX co-crystal explosive is 32.8 cm, which increases by 19.7 cm and 13.2 cm compared with CL-20 and HMX, respectively. Its impact sensitivity is superior to HMX.