Study on the correlation between characteristic peaks of infrared absorption spectra and maximum elongation of HTPB propellant

2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS) Pub Date : 2021-10-01 DOI:10.1109/icmeas54189.2021.00036

Zhihong Yan, X. Sui

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Abstract

In order to explore the correlation between the characteristic peaks of infrared absorption spectrum and the maximum elongation of HTPB propellant, the tensile test and Fourier infrared spectrum test of HTPB propellant after accelerated aging at 50 centigrade,60 centigrade and 70 centigrade were carried out. S-G smoothing filtering method and derivative spectrum method were used to process the infrared spectrum data, and the correlation between the infrared spectrum data and the maximum elongation was analyzed. The results show that the characteristic peak wave number of infrared absorption spectrum is highly related to the maximum elongation, and the fitting formula between the characteristic peak of infrared absorption spectrum and the maximum elongation is established at the wave number 1785cm-l; It was found that the maximum elongation of HTPB propellant decreases first in the aging process, then after a plateau period or rising period, and finally maintains a downward trend.

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HTPB推进剂红外吸收光谱特征峰与最大伸长率的相关性研究

为了探索HTPB推进剂红外吸收光谱特征峰与最大伸长率之间的相关性，对HTPB推进剂在50℃、60℃和70℃加速老化后的拉伸试验和傅里叶红外光谱试验进行了研究。采用S-G平滑滤波法和导数光谱法对红外光谱数据进行处理，分析红外光谱数据与最大伸长率的相关性。结果表明:红外吸收光谱特征峰波数与最大伸长率高度相关，并在波数1785cm-l处建立了红外吸收光谱特征峰与最大伸长率的拟合公式;研究发现，HTPB推进剂的最大伸长率在老化过程中先下降，然后经过一个平台期或上升期，最后保持下降趋势。

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2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)

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