【摘要】 为研究磺化碱木质素在高温条件下的热稳定性能,实验采用热重-红外分析(TG-IR)和差示扫描量热分析(DSC)研究了磺化麦草碱木质素在非氧状态下热分解反应的动力学过程.利用多升温速率法Kissingr法和Ozawa法,分别计算了磺化麦草碱木质素热动力学方程中的表观活化能(E)和频率因子lnA,分别为118.3kJ.mol-1,121.46kJ.mol-1;20.40min-1,15.92min-1;利用Kissingr法计算了热动力学方程的反应级数是1.8.更多还原

【Abstract】 The thermal decomposition process of sulfonated wheat-strew soda lignin at the none-oxygen state was studied,using TG-IR and Non-isothermal Differential Scanning Calorimetry（DSC）.The Kissinger and Ozawa equation kinetic parameters of the thermal decomposition were obtained.The apparent activation energy Ea,and pre-exponential factor,lnA,are 118.3kJ·mol^-1,121.46kJ·mol^-1;20.40min^-1,15.92min^-1,respectively.The reaction order of the process is 1.8 by using Kissinger method.更多还原