Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (6): 20250297.doi: 10.7503/cjcu20250297

• Physical Chemistry • Previous Articles     Next Articles

Prediction of Decomposition Temperature of Energetic Materials Based on Machine Learning Methods

GUO Lili1, HU Mengqian1, HUANG Mengmei1, LU Yanhua2, LI Wei2, ZHANG Qingyou1(), GUO Xiang2()   

  1. 1.Henan Engineering Research Center of Industrial Circulating Water Treatment,Henan Joint International Research Laboratory of Environmental Pollution Control Materials,Henan University,Kaifeng 475004,China
    2.Science and Technology on Aerospace Chemical Power Laboratory,Hubei Institute of Aerospace Chemotechnology,Xiangyang 441003,China
  • Received:2025-10-15 Online:2026-06-10 Published:2025-12-24
  • Contact: ZHANG Qingyou, GUO Xiang E-mail:zhqingyou@163.com;guoxiang@casc42.cn
  • Supported by:
    the Open Research Fund of the Science and Technology on Aerospace Chemical Power Laboratory, China(120201B01)

Abstract:

In this study, a novel composite descriptor system was suggested, and a high-performance prediction model for the decomposition temperature of energetic materials was constructed. First, molecular structure descriptors based on group contribution were proposed. Then, bond dissociation energy(BDE) was introduced as a key supplementary parameter to quantify the effect of bond strength on decomposition temperature. Finally, RDKit descriptors were generated using the RDKit software, ultimately integrating them into a multidimensional feature set. This feature set was submitted to random forest(RF), support vector machine(SVM), and partial least squares(PLS) individually to construct multiple prediction models and conduct a systematic comparison. Among them, the best results were obtained using the model built by RF. Its prediction performance was superior to the results reported in the literature, indicating that the proposed composite descriptors can effectively capture the key factors affecting the decomposition temperature. To further interpret the model and identify critical influencing factors, Shapley additive explanations(SHAP) visualization technology was employed to analyze the optimal model, thereby providing valuable data-driven insights into the thermal stability mechanisms of energetic materials.

Key words: Decomposition temperature, Molecular group descriptor, Quantitative structure-property relationship(QSPR), Random forest(RF)

CLC Number: 

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