【摘要】 为解决生物基环氧树脂力学性能低、降解性能不足等问题，以松香衍生的马来海松酸（MPA）为原料与环氧氯丙烷反应合成了环氧化马来海松酸（EMPA），并采用聚醚胺D400（PA）为固化剂，制备了松香基环氧树脂（EMPA-PA）。通过红外光谱、动态热力学分析、力学试验和热重分析等对树脂的性能进行了表征。结果表明，EMPA-PA_1.0、EMPA-PA_0.8以及EMPA-PA_0.6的拉伸强度分别达到48.3、46.5和37.9 MPa，其5%热失重温度分别为269.9、273.4和276.5℃，说明EMPA-PA树脂具有良好的力学性能和耐热性。该树脂在乙醇胺溶液中120℃加热70 min可实现完全降解，表现出优异的化学可回收性。更多还原

【Abstract】 To address the issues of low mechanical properties and insufficient degradation performance of bio-based epoxy resins, the epoxidized maleopimaric acid(EMPA) was synthesized by reacting maleopimaric acid(MPA) derived from rosin with epichlorohydrin and the rosin-based epoxy resin(EMPA-PA) was prepared by using polyetheramine D400(PA) as the curing agent for EMPA. The properties of the resin were characterized by infrared spectroscopy, dynamic thermomechanical analysis, mechanical tests, and thermogravimetric analysis. The results showed that the tensile strengths of EMPA-PA1.0, EMPA-PA0.8, and EMPA-PA0.6 reached 48.3,46.5, and 37.9 MPa, respectively, and their 5% weight loss temperatures were 269.9, 273.4, and 276.5 °C, respectively, indicating that the EMPA-PA resin has good mechanical properties and thermal stability. The resin can be completely degraded by heating at 120 °C for 70 min in ethanolamine solution, showing excellent chemical recyclability.更多还原