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在使用Al/Mg颗粒添加剂的固体推进剂中研究聚合特性

Linqing Zhang^1,2, Jiangbao Zeng³, Xiang Li²

¹School of Energy Seience and Engineering, Harbin Institute of Technology, Harbin, 150000, PR China.

Scientific reports

|July 6, 2025

概括

这项研究揭示了在推进剂燃烧期间和之后发生的颗粒聚合. 增加的含量增加了燃烧速度,并影响了聚合物大小,从而导致了一个新的预测模型.

科学领域:

材料科学材料科学材料科学
燃烧科学燃烧科学
化学工程是化学工程的重要组成部分.

背景情况:

了解金属颗粒的行为对于推进剂的性能至关重要.
(Al) 和 (Mg) 颗粒是常见的推进剂添加剂.
聚合物显著影响燃烧效率和安全.

研究的目的:

研究推进剂中Al/Mg颗粒的点火,燃烧和聚合行为.
分析在燃烧表面脱离后和脱离后的聚合过程.
开发一个预测聚合物规模的预测模型.

主要方法:

使用小型密封激光点火装置.
使用扫描电子显微镜 (SEM) 进行粒子分析.
集成的光学可视化用于实验观测.

主要成果:

颗粒聚合发生在燃烧表面和脱离后.
分离的聚合物经历凝聚,扩张,喷射和碎片化.
增加含量 (从20%增加到35%,占金属总量的40%) 将燃烧速度提高了7.7%.
金属颗粒含量显著影响燃烧和聚合性质.

结论:

聚合是一种复杂的过程,涉及多个阶段.
推进剂的组成,特别是含量,极大地影响着燃烧速度和聚合.
一个新的模型成功地根据组成和燃烧速度预测了聚合物大小.

关键词:

聚合聚合聚合聚合聚合 Al/Mg颗粒添加剂的添加剂微观形态学微观形态学固体喷气机燃料是固体的.

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