Prepartion And Characterization Of HMX/TATB Co-crystal Explosive

In order to obtain the high explosive performance and low impact sensitivity, a cocrystal explosive (CCE) consisting of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) and 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) has been prepared, and it provides the methods of characterization in structure and performance in this paper. The main contents are as follows:(1) On the basis of Molecular Dynamics (MD) Simulation, the optimized structure of the HMX/TATB cocrystal model (molar ratio 8:1) is designed. According to the hydrogen-bond rules, there are three patterns hydrogen bonds in the HMX/TATB super cell. And the three patterns have graph sets 1: R₁²(4), 2: R₂²(6) and 3: R₂¹(4).(2) Based on the theory of crystal growth in solvent, the HMX/TATB CCE was prepared by a solvent/non-solvent (S/NS) process at room temperature.(3) As to the?difficultness of characterization in structure and performance ,and characteristics of HMX and TATB, several methods of characterization were chosen, including SEM, Micro- Raman spectra, THz-TDS and XPS, which confirmed the formation of HMX/TATB CCE each other.(4) The impact sensitivity of HMX/TATB CCE was tested by height of dropping hammer. And compared with HMX, there are obvious insensitization effects.The HMX/TATB CCE is relative insensitive and simple in the process. It is hopeful to provide a new and more effective way for preparing insensitive high explosives. The chosen methods for the characterization of HMX/TATB CCE can also be used for the other CCE.