浇注用环氧树脂固化动力学的非等温DSC  

Cure Kinetics of Epoxy Resin Used in Casting Process by Non-Isothermal DSC Data

作　　者：张赛军[1] 袁宁[1] 阮锋[1] 

机构地区：[1]华南理工大学机械工程学院,广东广州510640

出　　处：《高分子材料科学与工程》2007年第6期173-176,共4页Polymer Materials Science & Engineering

基　　金：广东省工业攻关项目(2003C102023)

摘　　要：用非等温DSC技术研究了环氧树脂浇注体系在动态升温过程中的固化反应,用等转化率方法得到了体系的激活能与固化度之间的关系。采用Malek法分析动力学模型时,发现其特征值并不唯一,分析了不同特征值对模型预测结果的影响。确定了动力学模型并预测了相应的参数,结果表明该体系符合两参数自催化SB模型。模型预测与试验数据吻合得很好。The cure kinetics of epoxy resin mixture used in casting was analyzed with nonisothermal DSC technology or method. The dependence of the effective activation energy on the extent of cure was obtained with the iso-conversional method. The experimental data was processed with Malek method, and the feature value of the kinetics model was not unique but multiple, and the influence of the different feature values on the estimation was analyzed. The two-parameter autocatalytic SB model was found to be adequate to represent the cure kinetics of the mixture. The predicted results agreed well with the experiments.

关 键 词：环氧树脂 动态DSC 固化动力学 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]