Abstract In this paper, four kinds of guanidinium dicyanamide-based energetic salts were prepared and investigated as energetic additives to hypergolic ionic liquid 1-ethyl-3-methyl imidazolium dicyanamide ([EMIM][DCA]) for the first time. Their densities, viscosities, heat of formation, specific impulse, ignition delay time, melting point, charge distribution, decomposition temperature were tested and calculated. The results showed that these salts possessed high nitrogen content (> 66 wt%), high density and high specific impulse. Their addition can bring significant improvement on density and specific impulse of [EMIM][DCA] and hardly affect its ignition delay time.

中文翻译：

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胍基二氰胺基富氮高能盐作为自燃离子液体的添加剂

摘要 本文首次制备并研究了四种胍基双氰胺含能盐作为自燃离子液体1-乙基-3-甲基咪唑鎓双氰胺([EMIM][DCA])的含能添加剂。测试并计算了它们的密度、粘度、形成热、比冲、点火延迟时间、熔点、电荷分布、分解温度。结果表明，这些盐具有高氮含量（> 66 wt%）、高密度和高比冲。它们的加入可以显着提高[EMIM][DCA]的密度和比冲，并且几乎不影响其点火延迟时间。