化工廠在日常的生產、貯存、運輸中發生的安全事故主要就是火災和爆炸現象。其中偶氮化合物在化工生產中主要用作聚合物聚合反應的引發劑、催化劑和發泡劑等，普遍應用于有機催化合成和高分子聚合物的聚合反應中。偶氮化合物在隔絕氧氣和水溶劑的條件下也能發生自分解反應，整個反應過程包括產熱和產生氣體等現象。偶氮化合物化學安定性也較差，在室溫條件下有的自反應性化學物質就會漸漸地發生分解，當熱量達到物質分解溫度時，該物質就會加速分解從而產生大量的熱導致燃燒或爆炸等現象。在化學工業生產過程中，雜質，摩擦等因素都有可能引發偶氮化合物的熱分解，所以在安全生產、存儲、運輸等方面都面臨很大的挑戰。 本文選取了偶氮異丁氰基甲醯胺、偶氮二異丁氰、偶氮二甲醯胺作為研究物件，採用兩種熱分析技術：STA聯用熱分析技術和差示掃描量熱法。探究在不同的升溫速率下，三種物質的熱分解特性。

The main causes of dangerous accidents in the daily production, storage and transportation of chemical plants are fire and explosion. Azo compound is a kind of important organic compounds, which is mainly used as the preparation of polymer initiator, catalyst, blowing agent and widely used as polymers, organic synthesis. The autocatalysis reaction can be taken place without oxygen and water solvent, which includes heat and gas products. At ambient temperature, some autocatalysis chemicals will gradually decompose, because the chemical stability of azo compounds is poor. When the heat reaches the decomposition temperature, it will decompose at an accelerated rate, resulting in a large amount of heat leading to combustion or explosion and other phenomena. Impurities, friction and other factors in industrial production may lead to the thermal decomposition of azo compounds, and the safety in production, storage, transportation and other aspects are facing great challenges. This article selects the azo butyl cyano formamide, azo diisobutyl cyanogen, azobisformamide as the research object. STA coupled thermal analysis technology and differential scanning calorimetry respectively are used under different heating rate, the thermogravimetric analysis on them.