玻璃钢/复合材料Issue(4)：11-16,6.
基于变活化能模型的T800/环氧树脂预浸料固化反应动力学研究
STUDY ON THE CURE KINETICS OF T800/EPOXY RESIN PREPREG BASED ON ACTIVATION ENERGY VARIABLE MODEL
摘要
Abstract
To further analyze the curing behavior of a new kind of high temperature curing T800/epoxy resin prepreg, dynamic differential scanning calorimetry (DSC) method was carried out to investigate the cure behavior of T800/prepreg.The characteristic temperatures and cure kinetics parameters of the prepreg were systematically investigated based on phenomenological model, and the cure reaction kinetic model of the epoxy resin was determined to be the autocatalytic model.The relation of activation energy versus degree of cure was obtained by iso-conversional method for the epoxy resin in prepreg.The results show that the reaction activation energy of epoxy resin in the prepreg changed significantly with increasing degree of cure during the whole curing process.Thus, the curing model based on the assumption that the activation energy was a constant during the whole curing process could not describe this curing reaction accurately.Therefore, an activation energy variable autocatalytic kinetic model and particle swarm global optimization algorithm were used to obtain the cure kinetic equation of T800/epoxy resin prepreg.The results show that this model achieves a good correlation with the experiment data, hence providing a theoretical base for further study on thermodynamic properties and enables the quality control during the curing process for the prepreg.关键词
非等温DSC/变活化能模型/固化动力学方程/T800/环氧树脂预浸料Key words
dynamic DSC/activation energy variable model/cure kinetic equation/T800/epoxy resin prepreg分类
通用工业技术引用本文复制引用
殷锐,湛利华,李树健..基于变活化能模型的T800/环氧树脂预浸料固化反应动力学研究[J].玻璃钢/复合材料,2017,(4):11-16,6.基金项目
国家重点基础研究发展规划(973计划)项目(2014CB046502) （973计划）
