Copper azide nanowires@rgo energetic composite with low electrostatic sensitivity

Abstract

A novel energetic composite with low electrostatic sensitivity was successfully synthesised in this work. Copper nanowires decorated reduced graphene oxide (CuNW@rGO) precursor was prepared through a facile one-pot hydrothermal approach. Then the precursor was deposited on silicon substrate by electrophoretic deposition, which greatly reduced the security risks of directly handling of powder sample. Copper azide nanowires(CANW)@rGO was in-situ fabricated by reaction of copper nanowire (CuNW ) @rGO with HN3 gas. The materias were characterized by SEM-EDS, TEM, XRD, DSC and Raman spectroscopy. The electrostatic sensitivity of CANW@rGO composite was investigated by electrostatic sensitivity tester JGY-50III. The discharge energy at 50%(E50%) of CANW@rGO composites with rGO contents of 15 and 25 wt% were 0.92mJ and 1.43mJ, respectively. The results indicate that the electrostatic sensitivity of the as-prepared CANW@rGO energetic composite was highly reduced with the addition of rGO.