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首页> 外文会议>AIAA SciTech forum;AIAA Aerospace Sciences Meeting >Thermogravimetric Analysis of the Decomposition of a Paraffin Particle/HTPB Fuel Grain for Hybrid Rocket Motors
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Thermogravimetric Analysis of the Decomposition of a Paraffin Particle/HTPB Fuel Grain for Hybrid Rocket Motors

机译：混合火箭发动机石蜡颗粒/ HTPB燃料颗粒分解的热重分析

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摘要

Paraffin has been identified as a promising alternative for use in propellant grains for hybrid rocket motors. Studies have been conducted using grain as fuel paraffin or liquid hidroxylated polybutadiene polymer (HTPB) due to the high thrust generated during firing. However, in consequences the low mechanical properties of pure paraffin, this study aims to evaluate the kinetics of degradation of a mixture composed of paraffin particles (PP) and HTPB compared with grain fuel pure paraffin and pure HTPB. For this we used a thermal analysis technique thermogravimetric in conjunction with the application of kinetic methods based on ASTM E1641 and Vyazovkin theory. Based on these results we can say the activation energy results are in agreement with the literature and the mixture PP / HTPB presents intermediate activation energy values as expected.
机译：石蜡已被认为是用于混合火箭发动机推进剂谷物的有前途的替代品。由于在燃烧过程中产生的高推力，已经使用谷物作为燃料石蜡或液态羟化聚丁二烯聚合物（HTPB）进行了研究。但是，鉴于纯石蜡的低机械性能，该研究旨在评估与谷物燃料纯石蜡和纯HTPB相比，由石蜡颗粒（PP）和HTPB组成的混合物的降解动力学。为此，我们结合了基于ASTM E1641和Vyazovkin理论的动力学方法，采用了热重分析技术。基于这些结果，我们可以说活化能结果与文献一致，并且PP / HTPB混合物呈现出预期的中间活化能值。

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