Epoxidized soybean oil (ESO) compounds were cured with methyl tetrahydrophthalic anhydride (MTHPA) as hardener and 2,4,6-tris (dimethylaminomethyl) phenol (DEH 35) and Sn(II) 2-ethylhexanoate catalyst (TIN) as catalysts. The curing was tracked using Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC) while the thermal stability was investigated through thermogravimetry. From FTIR spectra ESO/MTHPA/DEH35 displayed better performance while in ESO/MTHPA/DEH35/TIN the curing progressed slowler, instead accelerating it is evidenced that TIN delayed ESO curing and lower conversion degree and curing rate were reached, as corroborated by DSC scans. Complex curing was verified in FTIR spectra and DSC scans which is assumed to be involved with catalyzed curing and homopolimerization processes, taking place in lower and higher temperatures, respectively. Weight loss of ESO/MTHPA/DEH35 and ESO/MTHPA/DEH35/TIN took place in two stages, i.e., degradation of non-reacted material and lower macromolecular weight chains followed by degradation of denser crosslinked macromolecular chains.

使用甲基四氢邻苯二甲酸酐 (MTHPA) 作为硬化剂和 2,4,6-三（二甲氨基甲基）苯酚 (DEH 35) 和 Sn(II) 2-乙基己酸酯催化剂 (TIN) 作为催化剂固化环氧化大豆油 (ESO) 化合物。使用傅里叶变换红外光谱（FTIR）和差示扫描量热法（DSC）跟踪固化，同时通过热重分析研究热稳定性。从 FTIR 光谱来看，ESO/MTHPA/DEH35 表现出更好的性能，而在 ESO/MTHPA/DEH35/TIN 中，固化进展较慢，而不是加速，证明 TIN 延迟了 ESO 固化并达到了较低的转化度和固化速率，这由 DSC 扫描证实. 在 FTIR 光谱和 DSC 扫描中验证了复合固化，这被认为与催化固化和均聚过程有关，分别在较低和较高温度下发生。ESO/MTHPA/DEH35 和ESO/MTHPA/DEH35/TIN 的失重分两个阶段发生，即未反应材料和较低大分子链的降解，然后是较致密的交联大分子链的降解。