| 摘要: |
| 研究了低铝含量(5%)的NA(硝胺)/AP/HTPB推进剂高压(15MPa～22MPa)燃烧特性。结果表明:二茂铁衍生物(RMT)能大幅提高推进剂燃速和降低高压燃速压强指数。随着RDX含量(15%～35%)增加,推进剂燃速基本不变;而HMX(15%～30%)含量增加,燃速呈降低趋势。提高配方中RMT含量、细AP的含量或采用RMT/铬酸盐组合催化剂的方法都可将NA/AP/HTPB推进剂高压压强指数降低到0 45以下。 |
| 关键词: 端羟基聚丁二烯推进剂 硝胺推进剂 推进剂燃速 燃烧性能 |
| DOI： |
| 分类号:V512 |
| 基金项目:九五国家重大跨行业预研课题 (1 2 0 60 3 3 41 1 7)。 |
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| Combustion property of Nitramine/AP/HTPB propellant under high pressures |
|
LU Guo-lin
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Hubei Inst. of Aerospace Chemotechnology, Xiangfan 441003, China
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| Abstract: |
| The combustion property of Nitramine (NA)/AP/HTPB propellant containing aluminium (5%) is investigated under high pressures (15MPa～22MPa). The results show that ferrocene derivant (RMT) can effectively enhance burn rate of propellants and reduce its pressure exponent under high pressures; The propellant burn rates maintain constant with raising the content of RDX; But burn rates of HMX propellant decrease. The pressure exponent of NA/AP/HTPB propellant is reduced to 0.45 under high pressures by means of raising the content of RMT, the fine particle AP or using RMT/chromic acid salt composite catalysts. |
| Key words: Hydroxy terminated polybutadiene propellant Nitramine propellant Propellant burning rate Combustion property |
