氰 基 硼 氢 甲 基 咪 唑 合 铜 自 燃 配 合 物 的 合 成 与 性 能 研 究

To develop novel active metal complex fuels，three new types of active metal complexes were synthesized using cyanoborohydride（CBH^-）as the anion，transition metal Cu（Ⅱ）as the central ion，and 1-methylimidazole（1-MIM），2-methylimidazole （2-MIM）and 4-methylimidazole（4-MIM）as ligands. Their structures were accurately characterized via infrared spectroscopy and single-crystal X-ray diffraction，and the corresponding structural formulas are［Cu（1-MIM）₄］（CBH）₂，［Cu（2-MIM）₄］（CBH）₂ and［Cu（4-MIM）₄］（CBH）₂，respectively. The thermal decomposition properties，energy density and mechanical sensitivity of the three novel metal complexes were tested. Their theoretical specific impulse when combined with 90 % H₂O₂ oxidizer was calculated based on NASA-CEA，and the hypergolic ignition performance of the novel active metal complex fuels with 90% H₂O₂ was investigated via high-speed photography. The results show that all three metal complexes exhibit high energy density （26.5-27.3 kJ·g^-1）and low sensitivity，with friction sensitivity >360 N and impact sensitivity >40 J. All three complexes can undergo hypergolic reaction upon contact with 90 % H₂O₂ at room temperature，and the ignition activity follows the order［Cu（2-MIM）₄］（CBH）₂ <［Cu（4-MIM）₄］（CBH）₂ <［Cu（1-MIM）₄］（CBH）₂.