三羟甲基乙烷、新戊二醇及其二元体系固—固相变贮热的动力学研究

Kinetic Study of Solid-solid Transition in Polyhydric Alcohol and the PG/NPG Binary System

运用kissinger及Ozawa方法两种热分析动力学模型,利用差示扫描量热法(DSC)测定三羟基乙烷(PG)、新戊二醇(NPG)及其二元体系的低温固一固相变DSC曲线,求算固一固相变的表观活化能和反应级数,探讨表观活化能随组成不同的变化规律。两种方法的处理结果是相一致的。

Kissinger and Dzawa kinetic methods were applied to determine the activation energy and the reaction order of the solid-solid phase transitions in neopentylg lycol(NPG) .Trimethylol ethane(PG)and their binary system by DSC cure.The changes of activation energy with the composition of the PG/NPG binary System were studied and andly sed.