Abstract
The effects of ammonium perchlorate (AP), hexahydro-1,3,5-trinitro-s-triazine (RDX), aluminum powder (Al) and ammonium dinitramide (ADN) used as solid fillers on energy characteristics of composite PBT (BAMO and tetrahydrofuran (BAMO-THF) copolymers) propellants plasticized with A3 (bis (2,2-dinitropropyl) acetal/bis (2,2-dinitropropyl) formal) and NG/DEGDN (glyceryl trinitrate/diethyleneglycol dinitrate) respectively were investigated using least free energy method. Calculated results indicate that the variation curves of the specific impulse of propellants are characteristics of a parabola with the increasing of RDX content, and there exist optimum content ratios of solid fillers in respective systems. Compared with those plasticized with A3, propellants plasticized with NG/DEGDN show higher specific impulses. The specific impulses are evidently enhanced due to the decreasing in average relative molecular mass of combustion products, caused by the addition of 15% ADN instead of AP into the formulations.
| Original language | English |
|---|---|
| Pages (from-to) | 73-78 |
| Number of pages | 6 |
| Journal | Hanneng Cailiao/Chinese Journal of Energetic Materials |
| Volume | 17 |
| Issue number | 1 |
| Publication status | Published - Feb 2009 |
Keywords
- Ammonium dinitramide(ADN)
- BAMO-THF copolyether
- Composite propellant
- Energy characteristics
- Physical chemistry