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使用近红外方法评估改性双基推进剂组分在水中连续混合过程中的混合均匀性和终点

Evaluation of Blend Uniformity and Terminal Point during Continuous Mixing in Water for Modified Double-Base Propellant Components Using a Near-Infrared Method.

作者信息

Liu Ben, Xiao Lei, Wu Zongkai, Li Duo, Hu Yubing, Zhang Guangpu, Zhao Fengqi, Song Xiuduo, Jiang Wei, Hao Gazi

机构信息

National Special Superfine Powder Engineering Research Center of China, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

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

出版信息

ACS Omega. 2022 May 13;7(20):17098-17107. doi: 10.1021/acsomega.2c00532. eCollection 2022 May 24.

DOI:10.1021/acsomega.2c00532
PMID:35647447
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9134419/
Abstract

A near-infrared (NIR) spectrometer was used to test the double-base absorbent powder sample and to quantitatively analyze the contents of each component as well as their dispersion uniformity to establish a rapid quantitative test method for blending uniformity of modified double-base (MDB) propellant components. First, the quantitative calibration models of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) were constructed based on sample testing, and the RDX model's correlation coefficient was 0.9929. Then, during the blending process, NIR spectra were continually collected. For the original spectra of samples, the blend uniformity was assessed using the coefficient of moving block standard deviation (MBSD). After 160 min, the sample's MBSD value had reached a steady state of less than 0.003, indicating that the sample's components were distributed uniformly. The findings reveal that NIR spectroscopy can be used to verify the blending uniformity of MDB propellant components.

摘要

采用近红外（NIR）光谱仪对双基吸收药粉末样品进行测试，定量分析各组分含量及其分散均匀性，建立改性双基（MDB）推进剂组分混合均匀性的快速定量测试方法。首先，基于样品测试构建了六氢-1,3,5-三硝基-1,3,5-三嗪（RDX）的定量校准模型，RDX模型的相关系数为0.9929。然后，在混合过程中持续采集近红外光谱。对于样品的原始光谱，采用移动块标准偏差系数（MBSD）评估混合均匀性。160分钟后，样品的MBSD值达到小于0.003的稳定状态，表明样品组分分布均匀。研究结果表明，近红外光谱可用于验证MDB推进剂组分的混合均匀性。

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