Influence of Graphene Oxide on the Sensitivity Parameters of 1,3,5,7-tetranitro1,3,5,7-tetraazacyclo-octane

Abstract

1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane (HMX) is one of the most powerful energetic materials which has several applications. Decrease the sensitivity of HMX is a goal for the researchers. In this work, the influence of graphene oxide (GO) on the sensitivity parameters of HMX has been studied. Graphene oxide has been prepared in our laboratories and it was used to prepare a composite based on GO-HMX by solvent-antisolvent slurry method. The prepared samples have been studied by X-ray diffractometer (XRD). Scanning electron microscope (SEM) has been used to check the crystal morphology of each sample. Selected types of plastic bonded explosives (PBXs) based on HMX have been studied for comparison. Impact and friction sensitivities of GO-HMX and the selected PBXs were measured, and the ignition temperature was determined by deflagration test. It was concluded that the crystals of HMX have been coated by layers of GO and the shapes of the crystals have been modified. GO-HMX has lower impact sensitivity than the individual HMX and the studied PBXs while the friction sensitivity are in the same level. The GO layers caused accumulation of the heat inside the crystals during the heating process and decreased the ignition temperature of GO-HMX. GO successfully decreased the sensitivity parameters of HMX and its effect on the detonation parameters should be studied.