CAJ | 학술논문

采用热重分析仪研究了油酸甲酯和硬脂酸甲酯的热解特性，获得了油酸甲酯在不同升温速率（10、15、20、30℃／min－1）下的TG‐DTG、DSC曲线，并通过热分析数学方法获得热解动力学拟合参数。结果表明，油酸甲酯的热解过程为简单的一步分解，相比硬脂酸甲酯具有较差的热安定性；提高升温速率，热解区间往高温区移动，热解活化能和指前因子具有较好的补偿效应；油酸甲酯在不同升温速率下具有不同的热解反应机理函数。
채용열중분석의연구료유산갑지화경지산갑지적열해특성，획득료유산갑지재불동승온속솔（10、15、20、30℃／min－1）하적TG‐DTG、DSC곡선，병통과열분석수학방법획득열해동역학의합삼수。결과표명，유산갑지적열해과정위간단적일보분해，상비경지산갑지구유교차적열안정성；제고승온속솔，열해구간왕고온구이동，열해활화능화지전인자구유교호적보상효응；유산갑지재불동승온속솔하구유불동적열해반응궤리함수。
Pyrolysis characteristics of methyl oleate and methyl stearate were conducted in thermo‐gravimetric analyzer to obtain their TG‐DTG and DSC curves at different hating rates(10 ,15 ,20 , 30℃/min-1 ) .Pyrolysis kinetic fitting parameters were gained by thermal analysis mathematical methodology . The results showed that pyrolysis of methyl oleate was a simple one‐step decomposition ,which had a relatively worse stability of pyrolysis ,compared with methyl stearate . The main pyrolysis region of methyl oleate shifted to the higher temperature ,when hating rate was raised .Moreover , the pyrolysis activation energy and pre‐exponential factor presented a good compensation effect , which also indicated that the pyrolysis reaction mechanism function was different at different heating rates .