酶解木质素基环氧树脂的合成与性能研究  

Synthesis and performance study of enzymatic hydrolyzed lignin based epoxy resin

作　　者：陈师岐 徐建晖 王杰 黄浩 王选伦[3] Chen Shiqi;Xu Jianhui;Wang Jie;Huang Hao;Wang Xuanlun(Chongqing Zhixiang Paving Technology Engineering Co.LTD.,Chongqing 401336,China;China Merchants Chongqing Transportation Research and Design Institute Co.LTD.,Chongqing 400067,China;Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]重庆市智翔铺道技术工程有限公司,重庆401336 [2]招商局重庆交通科研设计院有限公司,重庆400067 [3]重庆理工大学材料科学与工程学院,重庆400054

出　　处：《橡塑技术与装备》2025年第5期13-18,共6页China Rubber/Plastics Technology and Equipment

摘　　要：以酶解木质素替代双酚A为合成原料,与环氧氯丙烷进行化学反应合成酶解木质素基环氧树脂,并用胺类固化剂制备其固化物,并通过n级模型分析推测其固化动力学方程。采用力学性能测试、红外光谱、热失重分析仪、差示扫描量热仪等研究方法对酶解木质素基环氧树脂固化物进行评估。结果如下,当酶解木质素替代双酚A的含量20%时,酶解木质素基环氧树脂综合性能最优,其中拉伸强度为58.8 MPa,缺口冲击强度为6.9 kJ/m^(2);热失重分析仪研究表明,酶解木质素基环氧树脂固化物的热稳定性优异。In this study,enzymatic lignin was used as a synthetic raw material instead of bisphenol A,and reacted chemically with epichlorohydrin to successfully prepare enzymatic lignin based epoxy resin.Amine curing agents were used to cure it.The curing kinetics equation of enzymatically hydrolyzed lignin based epoxy resin was speculated through n-level model analysis.The study comprehensively evaluated the cured product of enzymatically hydrolyzed lignin based epoxy resin using mechanical property testing,infrared spectroscopy,thermogravimetric analysis(TGA),and differential scanning calorimetry(DSC).The results showed that when the proportion of enzymatic lignin replacing bisphenol A reached 20%,the comprehensive performance of enzymatic lignin based epoxy resin reached its optimum,with a tensile strength of 58.8 MPa and a notch impact strength of 6.9 kJ/m^(2).Thermogravimetric analysis shows that the cured product of enzymatically hydrolyzed lignin based epoxy resin has good thermal stability.

关 键 词：酶解木质素 环氧树脂 固化动力学 力学性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]