| 초록 |
N1,N1,N2,N2-tetramethylethane-1,2-diamine based ionic salts (TMEDA), N1,N1,N1,N2,N2,N2-hexamethylethane-1,2-diaminium dicyanamide (HMEDA-(DCA)2) was prepared following the feasible chemical reaction route. The chemical structure of the HMEDA-(DCA)2 was confirmed using 13C NMR spectrum and elemental analysis. Its viscosity was controlled lower than 5 cP at room temperature, which was critical for propellant application. The ignition delay of 40wt% HMEDA-(DCA)2 solution was decreased to 20-30 msec dramatically using alkali metal salts, Li(CH3COO), Mg(CH3COO)2 and Ca(CH3COO)2 as a co-catalyst when white fume nitric acid was utilized as an oxidizer. |
