Chemical Industry and Engineering Progress ›› 2022, Vol. 41 ›› Issue (S1): 477-484.DOI: 10.16085/j.issn.1000-6613.2022-0612

• Fine chemicals • Previous Articles     Next Articles

Synthesis, curing kinetics and properties of vanilla alcohol-based epoxy resin

TIAN Yazhou1,2(), HU Yujing3, LI Jiyou2, REN Jiangyan2, WANG Liwei2, WANG Xiuli2, DING Ying2, CHENG Jue1(), ZHANG Junying1()   

  1. 1.Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
    2.Beijing Institute of Control Engineering, Beijing 100190, China
    3.State Grid Hunan Electric Power Corporation Research Institute, Changsha 410007, Hunan, China
  • Received:2022-04-11 Revised:2022-05-08 Online:2022-11-10 Published:2022-10-20
  • Contact: CHENG Jue, ZHANG Junying

香草醇基环氧树脂的合成、固化动力学及性能

田亚州1,2(), 胡钰婧3, 李继友2, 任江燕2, 王立伟2, 王修利2, 丁颖2, 程珏1(), 张军营1()   

  1. 1.北京化工大学碳纤维及功能高分子教育部重点实验室,北京 100029
    2.北京控制工程研究所,北京 100190
    3.国网湖南省电力公司电力科学研究院,湖南 长沙 410007
  • 通讯作者: 程珏,张军营
  • 作者简介:田亚州(1991—),男,博士,工程师,研究方向为生物基环氧树脂的分子结构设计及性能。E-mail:yazhoutian@126.com

Abstract:

A bio-based epoxy resin (DGEVA) was synthesized from renewable vanilla alcohol. A novel bio-based epoxy resin system (DGEVA/MeHHPA) was prepared by using methyl hexahydrophthalic anhydride (MeHHPA) as the curing agent. The non-isothermal curing kinetics, thermal properties, thermomechanical properties, mechanical properties and microstructure of DGEVA/MeHHPA were systematically studied, and were compared with the petroleum-based epoxy resin system (DGEBA/MeHHPA) composed of commercial petroleum-based bisphenol-A epoxy resin. The results showed that DGEVA/MeHHPA and DGEBA/MeHHPA had similar curing activity. DGEVA/MeHHPA has better comprehensive performance comparable to DGEBA/MeHHPA. Specifically, the glass transition temperature of DGEVA/MeHHPA was 82.2℃. The tensile strength and tensile modulus of DGEVA/ MeHHPA were (66.7±6)MPa and (2.8±0.1)GPa, respectively. The Td5%, Td10% and Tdmax of DGEVA/MeHHPA were 242.4℃, 284.9℃ and 392.4℃, respectively. In addition, DGEVA/ MeHHPA exhibited plastic deformation during deformation and absorbed more fracture energy. The excellent comprehensive performance of DGEBA/MeHHPA lay in the unique molecular structure of DGEVA, which had great application potential in the practical application of DGEVA.

Key words: vanilla alcohol, epoxy resin, non-isothermal curing kinetics, mechanical properties, micromorphology structure

摘要:

以可再生香草醇为原料,合成了一种生物基环氧树脂(DGEVA)。通过使用甲基六氢苯酐(MeHHPA)作为固化剂,制备了一种新型的生物基环氧树脂交联网络(DGEVA/MeHHPA)。对其非等温固化动力学、热性能、热机械性能、机械性能和微观形貌结构进行了系统的研究,并用商用的石油基双酚A型环氧树脂组成的石油基环氧树脂体系(DGEBA/MeHHPA)进行对比。结果表明:DGEVA/MeHHPA和DGEBA/MeHHPA具有相似的固化反应活性。DGEVA/MeHHPA具有可以与DGEBA/MeHHPA相媲美的综合性能:玻璃化转变温度为82.2℃;拉伸强度和拉伸模量分别是 (66.7±6)MPa和 (2.8±0.1)GPa;Td5%Td10%Tdmax分别是242.4℃、284.9℃和392.4℃。此外,DGEVA/MeHHPA在形变过程中发生了塑性变形而吸收了更多的断裂能。DGEVA刚性骨架和低分子量带来的潜在高交联密度赋予了DGEVA优异性能,具有在实际应用中替代石油基环氧树脂的应用潜力。

关键词: 香草醇, 环氧树脂, 非等温固化动力学, 机械性能, 微观形貌结构

CLC Number: 

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