Acrylicpimaric acid-based epoxy (APA-based epoxy) and tung oil maleic anhydride (TMA), as a curing agent, were synthesized and used to prepare fully bio-based cured epoxies. The chemical structure was characterized by FTIR and ¹H NMR spectroscopy techniques. The effects of using APA-based epoxy to replace DER332 epoxy were investigated. The curing behavior, dynamic mechanical properties, mechanical properties, thermal stability and fracture surface were studied using differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), a universal testing machine, thermogravimetric analysis (TGA) and scanning electron microscope (SEM). The activation energy (E_a) of the curing process of the APA-based epoxy with TMA was 69.45 kJ/mol, which was almost the same as the E_a of the curing of DER332 process with TMA. Because of the rigidity of the hydrogen phenanthrene ring structure in the APA-based epoxy was higher than that of bisphenol A structure in DER332, the glass transition temperature (T_g) of the cured APA-based epoxy was 21 °C higher than that of the cured DER332 epoxy. The tensile strength, Young’s modulus and the peak temperature of the weight loss rate (T_max) of cured APA-based epoxy were higher than those of the cured DER332 epoxy. With a decrease in the APA-based epoxy content, the fracture surfaces of the cured APA-epoxy were much rougher. The cured APA-based epoxy exhibited higher storage modulus and Young’s modulus than the cured resins that were formed from flexible monomers. Therefore, the APA-based epoxy showed great potential to replace DER322 epoxy in preparing cured epoxies.

合成丙烯酸丙二酸酯基环氧树脂（APA基环氧树脂）和桐油马来酸酐（TMA）作为固化剂，并用于制备完全基于生物的固化环氧树脂。化学结构通过FTIR和¹ H NMR光谱技术表征。研究了使用基于APA的环氧树脂代替DER332环氧树脂的效果。使用差示扫描量热法（DSC），动态力学分析（DMA），通用测试仪，热重分析（TGA）和扫描电子显微镜（SEM）研究了固化行为，动态力学性能，力学性能，热稳定性和断裂表面。TMA的APA基环氧树脂固化过程的活化能（E _a）为69.45 kJ / mol，几乎与丙烯酸相同。用TMA固化DER332工艺的E _a。由于APA基环氧树脂中氢菲环结构的刚性高于DER332中双酚A结构的刚性，因此固化APA基环氧树脂的玻璃化转变温度（T _g）比APA基环氧树脂高21°C。固化的DER332环氧树脂。拉伸强度，杨氏模量和峰值温度的失重率（T _max固化的APA基环氧树脂的）高于固化的DER332环氧树脂的）。随着基于APA的环氧树脂含量的降低，固化的APA-环氧树脂的断裂表面更加粗糙。与由柔性单体形成的固化树脂相比，固化的APA基环氧树脂显示出更高的储能模量和杨氏模量。因此，基于APA的环氧树脂在制备固化环氧树脂中显示出巨大的潜力来替代DER322环氧树脂。