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关于BGAP粘合剂及其推进剂的风湿性质的研究

Yubao Shao¹, Siyu Xu¹, Huixiang Xu¹

¹Xi'an Modern Chemistry Research Institute, Xi'an 710065, China.

Molecules (Basel, Switzerland)

|May 14, 2025

概括

这项研究研究了利用化学风学对分支聚化甘乙烯 (BGAP) 粘合剂和推进剂泥的固化过程. 较小的粉颗粒大小减少了泥流的激活能量,但增加了固化反应的激活能量.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
聚合物化学聚合物化学

背景情况:

分支聚酸甘乙烯 (BGAP) 是一种用于推进剂泥的粘合剂.
了解BGAP及其泥的固化过程和质性质对于优化推进剂性能和安全至关重要.

研究的目的:

研究BGAP粘合剂及其推进剂泥在高温 (50-70°C) 下的风湿性质和固化动力学.
为了确定 (Al) 粉末颗粒大小对基于BGAP的推进剂泥固化过程的影响.

主要方法:

化学风湿学被用来研究BGAP粘合剂和推进剂泥的粘度变化随时间和温度的变化.
固化反应动力学是使用从表面粘度测量得出的双阿雷尼乌斯方程来建模的.
研究了不同的Al粉粒大小 (5微米,15微米,29微米) 对泥风学和固化的影响.

主要成果:

未化BGAP的粘度随着温度的增加而降低;塑化比率影响粘度的降低.
为BGAP固化建立了一个动力方程: η(T,t) = 10.16 exp (-1.72/T) exp [17.27 t exp (-5.21/T) ].
较小的Al粉粒大小 (5微米,15微米,29微米) 导致粘性流动激活能量较低,泥的固化反应激活能量更高.

结论:

这项研究提供了关于BGAP粘合剂及其推进剂泥的固化行为的见解.
粉颗粒大小显著影响推进剂泥的质性和固化动力学.
这些发现对于配制和加工具有受控固化特征的高能材料具有价值.

关键词:

艾尔粉末是一种粉.表面粘度表面粘度表面粘度有分支的聚化糖基乙烯 (BGAP)化学转化学方法的化学转化学方法.治疗治疗治疗治疗治疗治疗

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