Preparation, Structure and Performance of TKX-50/AP/GO Composite

Graphene oxide (GO) is a commonly used energetic additive in explosive and propellants systems. In order to study the effect of GO on the performance of TKX-50/AP blends, TKX-50/GO, AP/GO, TKX-50/AP/GO composites were prepared by solvent method. Then the structure was characterized by scanning electron microscope (SEM), fourier infrared technology (FT-IR), powder X-ray (XRD). Differential scanning calorimetry (DSC) was used to compare and study the thermal performance changes of TKX-50, AP and the two after being loaded by GO. Finally, the mechanical sensitivity of them was tested by the national military standard method. The results show that GO can be better loaded on the surface of TKX-50 and AP, and there is no chemical change during the loading process, only the combination of physical adsorption force. DSC shows that in the two-component system, GO can reduce the thermal decomposition peak temperature of TKX-50 and AP by 8.86℃ and 40.16℃; but in the TKX-50/AP/GO three-component system, GO only significantly reduces the thermal decomposition peak temperature of TKX-50, and hardly changes the decomposition temperature of AP. In addition, after loading GO, the impact and friction sensitivity of TKX-50 and AP have been significantly reduced, and the safety has been improved.