文献类型：会议论文

英文题名：Curing kinetics of bio-based epoxy resin based on epoxidized soybean oil and green curing agent

作者：Chen, Yahua[1];Xi, Zhenhao[1];Zhao, Ling[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai, Peoples R China

会议论文集：24th International Symposium on Chemical Reaction Engineering (ISCRE)

会议日期：JUN 12-15, 2016

会议地点：Minneapolis, MN

语种：英文

外文关键词：curing kinetics; epoxidized soybean oil; differential scanning calorimetry; integral isoconversional method; Sestak-Berggren autocatalytic model

摘要：New thermoset with a high bio-based content was synthesized by curing epoxidized soybean oil (ESO) with a green curing agent maleopimaric acid catalyzed by 2-ethly-4-methylimidazole. Non-isothermal differential scanning calorimetry and a relatively new integral isoconversional method were used to analyze the curing kinetic behaviors and determine the activation energy (E-a). The two-parameter Sestak-Berggren autocatalytic model was applied in the mathematical modeling to obtain the reaction orders and the pro-exponential factor. For anhydride/epoxy group molar ratio equal to 0.7, E-a decreased from 82.70 to 80.17 kJ/mol when increasing the amount of catalyst from 0.5 to 1.5 phr toward ESO. The reaction orders m and n were 0.4148 and 1.109, respectively. The predicted non-isothermal curing rates of Sestak-Berggren model matched perfectly with the experimental data. (c) 2016 American Institute of Chemical Engineers AIChE J, 63: 147-153, 2017