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燃烧型催泪弹主装药热解特性及动力学研究
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TJ55;TQ560.7

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Study on Pyrolysis Characteristics and Kinetics of Main Charge of Combustion Tear Gas Bomb
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    摘要:

    为研究某燃烧型催泪弹主装药的热解特性及相关动力学参数,通过利用热重-差示扫描量热分析(TG-DSC)等分析测试手段,对燃烧型催泪弹主装药的热解特性进行研究。运用Starink法、Flynn-Wall-Ozawa法,对各阶段的动力学参数进行计算,确定了不同升温速率下的反应动力学参数。通过采用Coasts-Redfern法计算对比各反应机理函数线性拟合的相关系数,对各阶段的最可能的反应模型进行了预测。研究表明,催泪弹主装药热解过程中各阶段发生的反应分别符合成核模型和反应级数模型,热解的第1至4阶段分别对应的反应模型为A3、F2、F3和F1。该模型为进一步探究该类催泪弹主装药剂的热解机理、深入研究改良配方奠定了一定的理论基础。

    Abstract:

    In order to study the pyrolysis characteristics and related kinetic parameters of the main charge of a combustion tear gas bomb, the pyrolysis characteristics of the main charge of a combustion tear gas bomb were studied by means of thermogravimetry differential scanning calorimetry (TG-DSC). Starink method and Flynn-Wall-Ozawa method were used to calculate the kinetic parameters of each stage, and the reaction kinetic parameters at different heating rates were determined. The most likely reaction model of each stage was predicted by calculating and comparing the correlation coefficients of linear fitting of reaction mechanism functions by Coasts-Redfern method. The research shows that the reactions in each stage of the pyrolysis process of the main charge of tear gas bomb accord with the nucleation model and the reaction order model respectively. The reaction models corresponding to the first to fourth stages of pyrolysis are A3, F2, F3 and F1 respectively. This model lays a certain theoretical foundation for further exploring the pyrolysis mechanism of this kind of main charge of tear gas bomb and further studying the improved formula.

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  • 在线发布日期: 2022-09-16
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