塑料科技2025，Vol.53Issue(1)：28-34,7.DOI:10.15925/j.cnki.issn1005-3360.2025.01.005
液体杜仲胶对环氧树脂固化反应动力学的影响
Effect of Liquid Eucommia ulmoides Gum on Curing Kinetics of Epoxy Resin
摘要
Abstract
The influence of crystalline liquid Eucommia ulmoides gum(cLEUG)and amorphous liquid Eucommia ulmoides gum(aLEUG)on the curing kinetics of epoxy resin E-51/polyamide 650(PA650)systems was studied by a non-isothermal DSC method.The kinetic parameters of the non-isothermal processes for the three systems of E-51/PA650,E-51/cLEUG/PA650,and E-51/aLEUG/PA650 were determined using the Starink method.The kinetic equations for the curing reactions of the three systems were established and compared with experimental data.The results showed that the liquid Eucommia ulmoides gum(LEUG)co-cured with E-51,and the addition of LEUG reduced the apparent activation energy(Ea)of the curing reaction of E-51/PA650,promoting the occurrence of the curing reaction.The Ea of E-51/cLEUG/PA650 system increased with the increase of conversion,while the Ea of E-51/aLEUG/PA650 system decreased with the increase of conversion.The viscosity of the system and the number and activity of epoxy groups on the LEUG chain are the reasons that affect the curing reaction kinetics.The self-catalytic reaction model equation established by Starink method is suitable for describing the kinetics of E-51/LEUG curing reaction.关键词
环氧树脂/液体杜仲胶/固化反应动力学/非等温/活化能Key words
Epoxy resin/Liquid Eucommia ulmoides gum/Curing kinetics/Non-isothermal/Activation energy分类
化学工程引用本文复制引用
黄意棋,杨凤,王新原,韩文驰,李龙,欧阳景豪,吴婷婷..液体杜仲胶对环氧树脂固化反应动力学的影响[J].塑料科技,2025,53(1):28-34,7.基金项目
辽宁省教育厅基本科研项目(LJKZZ20220055) （LJKZZ20220055）
沈阳市自然科学基金专项(23-503-6-06) （23-503-6-06）
