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Preparation and Characterization of Insensitive HMX/Graphene Oxide Composites
Author(s) -
Li Rui,
Wang Jun,
Shen Jin Peng,
Hua Cheng,
Yang Guang Cheng
Publication year - 2013
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.201200199
Subject(s) - graphene , x ray photoelectron spectroscopy , materials science , differential scanning calorimetry , thermogravimetry , thermal decomposition , scanning electron microscope , oxide , thermal stability , decomposition , chemical engineering , composite material , characterization (materials science) , nanotechnology , chemistry , organic chemistry , metallurgy , physics , engineering , thermodynamics
Abstract To improve the safety of HMX, a two‐dimensional (2D) graphene oxide (GO) was introduced to HMX by the solventnonsolvent method. The morphology, composition, thermal decomposition characteristic were characterized by scanning electron microscopy (SEM), X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), thermogravimetry (TG) and differential scanning calorimetry (DSC). Compared to the previous reports, GO sheets exhibited better desensitizing effect than [60]Fullerene and CNTs. When 2.0 wt‐% GO sheets were added, the impact sensitivity of raw HMX decreased from 100 to 10 %, and the friction sensitivity reduced from 100 to 32 %. The DSC results proved that GO sheets were compatible with HMX. In addition, by determining the thermal decomposition kinetic parameters of the samples, it was found that the activation energy (E a ) of HMX with 2.0 wt‐% GO increased by 23.5 kJ mol −1 , suggesting that GO sheets could improve the thermal stability of HMX.