【摘要】 利用二次正交回归法研究了在有齐聚物存在下 ,PTA与EG合成PET直接酯化工艺条件对酯化率的影响 ,得出了合成PET酯化过程影响因素的数学模型 ,并对反应温度、反应物质量比、摩尔比的影响进行比较 ,发现温度是酯化过程的主要影响因素 ,反应温度升高有利于增加酯化率更多还原

【Abstract】 The effect of PET direct esterification conditions on esterification degree was studied in the presence of oligomers. A mathematical model of PET esterification was created to study the influential factors by secondary orthogonal regression analysis. The factors of reaction temperature, reagent mass ratio and mole ratio were compared. It was found that temperature is the main factor affecting the esterification. The elevation of reaction temperature was helpful for increasing esterification degree.更多还原