文献类型：期刊文献

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] Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2017

卷号：63

期号：1

起止页码：147

外文期刊名：AIChE Journal

收录：EI(收录号：20165003125168)

语种：英文

外文关键词：Soybean oil - Kinetics - Isotherms - Calorimeters - Activation energy - Curing - Epoxy resins

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 (Ea). The two-parameter ?esták–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, Ea 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 ?esták–Berggren model matched perfectly with the experimental data. ? 2016 American Institute of Chemical Engineers AIChE J, 63: 147–153, 2017. ? 2016 American Institute of Chemical Engineers