Abstract In this study, thermal characterisation of stoichiometric azodicarbonamide/potassium periodate (C2H4O2N4/KIO4) fuel/oxidizer mixtures were systematically carried out for potential application as non azide non-toxic airbag gas generants. The onset temperature of the mixture was found to be 190 °C. The thermo-kinetic studies of the mixture and pure azodicarbonamide compositions at different heating rates were also carried out using Ozawa and Kissinger method and the Arrhenius parameters were computed. The activation energy of the C2H4O2N4/KIO4 mixture by Ozawa method was found to be 81.5 kJ mol−1 and 78.9 kJ mol−1 by Kissinger method. It was found that the activation energy of the pure azodicarbonamide was higher compared to the mixture. Ballistic tank tests to obtain the pressure Vs time plots were also done and the mixture gave time response of 45.2 ms and 55.54 ms to peak pressure. The experimental results have shown that C2H4O2N4/KIO4 mixture can be used as a replacement to existing azide based airbag gas generant compositions. Thus, the paper attempts to thermally characterize a non-toxic C2H4O2N4/KIO4 airbag gas generant mixture which can replace toxic azide based airbag gas generants and thereby facilitate safer driving.

中文翻译：

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偶氮二甲酰胺/高碘酸钾气囊气体发生剂的热动力学研究

摘要 在这项研究中，系统地进行了化学计量偶氮二甲酰胺/高碘酸钾 (C2H4O2N4/KIO4) 燃料/氧化剂混合物的热表征，以作为非叠氮化物无毒气囊气体发生剂的潜在应用。发现混合物的起始温度为190°C。还使用 Ozawa 和 Kissinger 方法进行了混合物和纯偶氮二甲酰胺组合物在不同加热速率下的热动力学研究，并计算了 Arrhenius 参数。通过 Ozawa 方法发现 C2H4O2N4/KIO4 混合物的活化能为 81.5 kJ mol-1，通过 Kissinger 方法发现为 78.9 kJ mol-1。发现纯偶氮二甲酰胺的活化能高于混合物。还进行了获得压力与时间图的弹道罐测试，混合物对峰值压力的时间响应分别为 45.2 毫秒和 55.54 毫秒。实验结果表明，C 2 H 4 O 2 N 4 /KIO 4 混合物可用作现有叠氮化物基气囊气体发生剂组合物的替代物。因此，本文试图对一种无毒的 C2H4O2N4/KIO4 气囊气体发生剂混合物进行热表征，该混合物可以替代有毒的叠氮化物基气囊气体发生剂，从而促进更安全的驾驶。