活性金属配合物燃料的制备与性能研究

In order to obtain novel active fuels, six active metal complexes were prepared based on the highly reducing dicyandiamide anion, which was constructed from the nitrogen-containing ligand 1-methyl-1, 2, 4 triazole and the transition metal center Mn, Co, Ni, Cu, Zn, Cd. Infrared spectroscopy, X-ray single-crystal diffraction and powder diffraction were used to characterize their structure. The thermal decomposition process of these complexes was analyzed by using DSC and TGA, and mechanical sensitivity tests were also carried out, and an oxygen bomb calorimeter was used to measure the heat of combustion and calculate the enthalpy of formation. Six kinds of active metal complexes and ammonium perchlorate (AP) with the mass ratio of 1:4 were mixed to prepare mixed energetic materials. DSC was used for thermal analysis of the mixture and EXPLO5 was used to calculate detonation parameters of the mixture. The results show that the decomposition peak temperatures of Mn, Zn and Cd complexes range from 210.9 to 395.1℃, the impact sensitivities are all greater than 40J, and the friction sensitivities are greater than 360N, indicating that these three complexes are insensitive to machinery. Among the six complexes, the Co complex has the largest heat of combustion (9623.2kJ/mol), and the Cu complex has the largest enthalpy of formation (1731.9kJ/mol). The decomposition temperatures of these six mixtures are in the range of 295.9-384.1℃, and the minimum impact sensitivity and friction sensitivity are 34J and 288N, respectively. The detonation performance is better than TNT, and the burning rate is 18.5mm/s. The theoretical maximum gas production is 3.37mol per 100 grams. The results show that the active metal complexes have the potential to be used as fuel components of some composite energetic materials.