“绿色”火箭推进剂的机械压缩特性

Florin-Marian Dîrloman, T. Rotariu, A. Rotariu, Gabriela Toader, L. Matache, Gabriel F. Noja
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引用次数: 0

摘要

固体火箭推进剂在发射系统的储存或处理过程中可能出现的机械阻力问题被认为直接影响燃烧性能。因此,在本研究中,四种新型复合火箭推进剂,基于环境友好的氧化剂(相稳定的硝酸铵)、金属燃料(铝)和“绿色”聚氨酯基粘合剂(由低聚异氰酸酯和通过催化降解聚对苯二甲酸乙二醇酯获得的聚酯多元醇混合物合成),进行了压缩力学分析,以强调粘合剂对承受压缩载荷的测试材料给出的响应的重要性。样品显示出显著的力学性能,实验还使我们能够确定粘合剂成分和燃料颗粒对复合推进剂力学性能的影响。
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Mechanical Compression Behaviour of "Green" Rocket Propellants
The issues related to mechanical resistance of solid rocket propellants, which can appear during storage or handling of the launching system, are considered to directly influence the burning performance. Thus, in this study, four new types of composite rocket propellants, based on an environmentally friendly oxidizer (phase-stabilized ammonium nitrate), a metallic fuel (aluminium), and a "green" polyurethane-based binder (synthesized from an oligomeric isocyanate and a blend of polyester-polyols obtained through the catalytic degradation of polyethylene terephthalate), were subjected to compression mechanical analysis in order to highlight the importance of the binder on the response given by the tested materials subjected to compressive loads. The samples showed remarkable mechanical performances, the experiments allowing us also to determine the influence of the binder composition and fuel granulation on mechanical properties of the composite propellant.
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审稿时长
53 weeks
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