关键词: 高能推进剂;高密度推进剂;含能粘合剂;推进剂氧化剂;推进剂能量性能

Abstract: Based on the minimum free energy method, the effects of energetic azido prepolymers and high-energy high-density oxidizers on the energetic characteristics of AP/RDX/A1/HTPB composite propcllant is analyzed, when the standard theoretical specific impulse (i°ss) reaches maximum, RDX content of GAP, AMMO and BAMObased com-posite propellants is higher than that of HTPB due to their higher oxy gen balance. For HTPB, GAP, AMMO and BAMO the maximum of theoritical specific impulse and burned gas temperature occur at the condition of 18% Al content, and the average molecular weight of burned gas increases with the increase of aluminum content. The analysis has shown that substitution of nitroester plasticizer for AP in the GAP-base-d composition significantly enhances its Iss. In comparison with RDX using high-energy high-density oxidizer HMX. HHTD and ONC can increase propellant density, and improve the density-impulse. Compared with NEPE high energy propellant, the standard theoretical spacific impulse of GAP-based propellant increases by 24. 5-34.3N. s/kg at the same binder volume fraction, whereas, the binder volume fraction increases by 50-65%, at the same energy level. Obviously, the use of energetic azido prepolymers and high-energy high-density oxidizers will become the emerging tendency of the next generation of high energy solid pro-pellanls.

Key words: High energy propellant;High density propellant;Energe- tic binder;Propellant oxidizer;propellant energy properties