生物基可降解环氧树脂体系固化反应动力学研究  

Curing kinetics of bio-based degradable epoxy resin system

作　　者：韦君 颜春 祝颖丹 刘东 刘小青 代金月 WEI Jun;YAN Chun;ZHU Ying-dan;LIU Dong;LIU Xiao-qing;DAI Jin-yue(Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology,Ningbo Institute of Material Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Nano Science and Technology Institute,University of Science and Technology of China,Suzhou 215123,China)

机构地区：[1]浙江省机器人与智能制造装备技术重点实验室,中国科学院宁波材料技术与工程研究所,浙江宁波315201 [2]中国科学技术大学纳米科学技术学院,江苏苏州215123

出　　处：《热固性树脂》2021年第5期25-30,共6页Thermosetting Resin

基　　金：国家自然科学基金(U1909220,51803225);宁波市科技创新2025重大专项(2019B10118,2019B10112,2020Z057)。

摘　　要：采用非等温示差扫描量热(DSC)法对生物基缩水甘油醚季戊四醇双缩香草醛环氧-E51环氧-4,4′-二氨基二苯砜可降解树脂体系(DEPVD-E51-DDS)的固化反应动力学进行研究。分别采用n级动力学模型和自催化动力学模型建立DEPVD-E51-DDS环氧树脂体系固化动力学方程,将拟合的曲线与实验曲线进行对比验证,结果表明自催化动力学模型能很好地描述DEPVD-E51-DDS环氧树脂体系的固化反应过程,为复合材料的成型工艺参数优化提供了理论指导。The curing kinetics of the degradable resin system such as bio-based diglycidyl ether pentaerythritol vanillin diacetal epoxy resin E51 epoxy resin-4,4′-diaminodiphenyl sulfone(DEPVD-E51-DDS)was studied by using differential s canning calorimetry(DSC)under nonisothermal conditions. The curing kinetic equation of DEPVD-E51-DDS epoxy resin system was established by the n-order kinetic model and the autocatalytic kinetic model. Then,the curves fitted were compared with the experimental curves. The results showed that the curves fitted by the autocatalytic kinetic model could describe the curing reaction process of the DEPVD-E51-DDS epoxy resin system better,and provided a theoretical guidance for the optimization of molding process parameters of composites.

关 键 词：环氧树脂 固化动力学 自催化模型 非等温DSC 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]