Preparation and Characterization of TATB based Nanocomposites

The preparation of energetic nanocomposites attracts considerable interests due to the unique structure and properties. In order to obtain a novel energetic nanocomposite system, the high-energy impacting method was used to fabricate TATB-F2311 and TATB-HMX nanocomposites, the scanning electron microscopy (SEM), differential scanning calorimetric (DSC) and impact sensitivity tests were conducted to characterize the structure and performance of the composites obtained. SEM images reveal that the particle size of most TATB-F2311 composites is nanometer-sized and almost all TATB-HMX particles are at nanometer scale, with the nano-sized TATB coating compactly on the surface of HMX particles. DSC results show that there are two main thermal decomposition peaks corresponding to the two components of HMX and TATB. It is found that the decomposition temperature of TATB and HMX in such nanocomposites is lower than the original materials. The impact sensitivity of TATB-HMX nanocomposites is visibly reduced compared with the physical mixture with the same composition.