抄録
A new layer-by-layer coating method to prepare triaminotrinitrobenzene/cyclotetramethylenetetranitramine (TATB/HMX) composite materials has been developed. By using fluoroelastomer as the binder, a TATB/HMX composite, which exhibited significantly lower mechanical sensitivity than that of raw HMX, was obtained. Scanning electron microscopy, energy-dispersive spectrometer, differential scanning calorimetry and fourier-transform infrared spectroscopy were utilized to investigate the structure of the composite particles. The results indicated that the surface of the raw HMX particles is tightly covered with TATB, and a hydrogen bonding force is formed inside the composite particles. The characterization of differential scanning calorimetry, before and after coating, shows that the TATB/HMX composite maintains good thermal stability. Moreover, the theoretical density of the TATB/HMX composite reaches 1.91 g･cm-3, and the theoretical explosion velocity is 8965 m･s-1.
