| 许春,梁书恩,蔺楠楠,郝晓飞,刘忠平,金波,孙杰,睢贺良.基于多通道原位红外光谱技术的环氧涂层恒温固化反应研究[J].装备环境工程,2023,20(7):32-40. XU Chun,LIANG Shu-en,LIN Nan-nan,HAO Xiao-fei,LIU Zhong-ping,JIN Bo,SUN Jie,SUI He-liang.Constant Temperature Curing Reaction of Epoxy Coating Based on Multi-channel In-situ Infrared Spectroscopy[J].Equipment Environmental Engineering,2023,20(7):32-40. |
| 基于多通道原位红外光谱技术的环氧涂层恒温固化反应研究 |
| Constant Temperature Curing Reaction of Epoxy Coating Based on Multi-channel In-situ Infrared Spectroscopy |
| 投稿时间：2023-01-04 修订日期：2023-03-24 |
| DOI：10.7643/issn.1672-9242.2023.07.005 |
| 中文关键词: 环氧树脂 涂层 固化机理 多通道原位红外光谱 化学结构 反应动力学中图分类号:TQ323.5 文献标识码:A 文章编号:1672-9242(2023)07-0032-09 |
| 英文关键词:epoxy resin coating curing mechanism multi-channel in situ infrared spectroscopy chemical structure curing reaction kinetics |
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| Author | Institution |
| XU Chun | State Key Laboratory of Environment-friendly Energy Material, Southwest University of Science and Technology, Sichuan Mianyang 621010, China;Institute of Chemical Materials, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| LIANG Shu-en | Institute of Chemical Materials, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| LIN Nan-nan | Institute of Chemical Materials, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| HAO Xiao-fei | Institute of Chemical Materials, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| LIU Zhong-ping | Institute of Chemical Materials, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| JIN Bo | State Key Laboratory of Environment-friendly Energy Material, Southwest University of Science and Technology, Sichuan Mianyang 621010, China |
| SUN Jie | Institute of Chemical Materials, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| SUI He-liang | Institute of Chemical Materials, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
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| 中文摘要: |
| 目的 拓展多通道原位红外光谱技术的应用，探究环氧树脂在固化行为中的分子结构变化以及不同固化深度下的动力学参数与恒温固化模型。方法 采用多通道原位红外光谱的表征方法，对N,N,O-三缩水甘油基对氨基苯酚(环氧树脂AFG-90)与甲基纳迪克酸酐(MNA)的环氧涂层的固化过程进行30、40、50、60、70 ℃等5个温度下的原位红外光谱监测，基于特征官能团吸光度的变化，研究恒温固化模型。结果 通过特征官能团吸光度与温度、时间的关系，计算得出AFG-90与MNA的环氧树脂固化体系在不同温度下的固化模型、达到不同固化度下的固化时间，求解得在不同固化深度下的活化能Ea主要在58~74 kJ/mol变化，且其均值为69.43 kJ/mol。结论 获得了AFG-90与MNA的环氧树脂固化体系在固化过程中动力学参数和模型，同时试验结果表明，多通道原位红外光谱技术是研究高分子材料固化反应动力学的有效表征方法。 |
| 英文摘要: |
| The work aims to expand the application of multi-channel in-situ infrared spectroscopy and investigate the molecular structure change of epoxy resin in curing behavior and the kinetic parameters and constant temperature curing model at different curing depths. Multi-channel in-situ infrared spectroscopy was used to characterize the curing process of the epoxy coating of N, N, O-glycidyl p-aminophenol (epoxy resin AFG-90) and methyl nadic anhydride (MNA) at five temperatures of 30, 40, 50, 60 and 70 ℃. The isothermal curing model was studied based on the change of characteristic functional group absorbance. Through the relationship between the absorbance of the characteristic functional group and the temperature and time, the curing model of the epoxy resin curing system of AFG-90 and MNA at different temperatures and the curing time at different curing degrees were calculated. The activation energy Ea at different curing depths was mainly between 58-74 kJ/mol, and the average value was 69.43 kJ/mol. The kinetic parameters and models of the epoxy resin curing system of AFG-90 and MNA during the curing process are obtained. At the same time, the experimental results show that multi-channel in-situ infrared spectroscopy is an effective characterization method for studying the curing reaction kinetics of polymer materials. |
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