【摘要】 本文用自行设计加工的耐压不锈钢密封池在CDR-1型差动热分析仪上测得的一条DSC曲线,利用计算非等温动力学的积分方程和微分方程拟合四组实验数据,逻辑选择确定2,6-二硝基苯酚在分解深度为0.007-0.66范围内的热分解反应的最可几数学模式为F（α）=α。用放热速率方程算得其热分解反应的级数为零,其表观活化能、指前因子的测量真值分别为134±9k Jmol^-1、10^9.17±0.77S^-1。积分方程逻辑选择求得的表观活化能和指前因子的测量真值相应为133±8kJmol^-1和10^9.01±0.79S^-1。微分方程逻辑选择求得的表观活化能和指前因子的测量真值相应为134±8kJmol^-1和10^9.10±0.63S^-1。三者吻合良好。更多还原

【Abstract】 Under linear temperature increase condition thermal behaviors, mechanismfunction and kinetic parameters of thermal decomposition of 2,6-dinitrophenol obtained with a model CDR-1 instrument with the sealed cell of stainless steel are reported. The data are fitted to the integral, differential and exothermic rate equations by linear least-squares, iterative, combined dichotomous and leastsquares methods, respectively. The apparent activation energy, pre-exponential constant, reaction order and probable mechanism function （integral form） of thermal decomposition reaction of 2,6-dinitrophenol obtained by the logical choice method are 134±9kJ mol^-1, 10^9.17±0.77s^-1 0, and a respectively.更多还原