Epoxy resin DER 671X75 cured with hardener T31. Epoxy polymer composite materials DER 671X75/T31 were improved the mechanical properties, thermal stability by triphenyl phosphate (TPP) and nanosilica (fumed silica S5505). Triphenyl phosphate and nanosilica were dispersed in epoxy resin DER 671X75 by mechanical stirring and ultrasonic vibration. The structural morphology of materials was characterized by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The thermal stability and thermal properties of materials were characterized by Thermo Gravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). The results showed that triphenyl phosphate with a content of 5 wt % in epoxy resin DER 671X75 improved the mechanical properties of epoxy polymer coating film DER 671X75/T31 with an impact strength increased 25%. The contents of 5 wt % triphenyl phosphate and 1 wt % nanosilica in epoxy resin DER 671X75 improved the impact strength of epoxy polymer coating film DER 671X75/T31 by 125%. The thermal stability of epoxy nanocomposite materials DER 671X75/5% triphenyl phosphate/1% nanosilica/T31 increased 45.35%. Epoxy coatings based on epoxy resin DER 671X75/5% triphenyl phosphate/1% nanosilica/pigments/fillers/additives/hardener T31 achieved mechanical properties, physical chemistry properties for coating and, had thermal degradation over 500 C.

环氧树脂 DER 671X75 用固化剂 T31 固化。环氧聚合物复合材料DER 671X75/T31通过磷酸三苯酯（TPP）和纳米二氧化硅（气相二氧化硅S5505）改善了机械性能、热稳定性。通过机械搅拌和超声波振动将磷酸三苯酯和纳米二氧化硅分散在环氧树脂DER 671X75中。通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）表征材料的结构形态。材料的热稳定性和热性能通过热重分析 (TGA) 和差示扫描量热法 (DSC) 进行表征。结果表明，环氧树脂DER 671X75中磷酸三苯酯含量为5 wt%时，环氧聚合物涂膜DER 671X75/T31的力学性能提高了25%，冲击强度提高了25%。环氧树脂DER 671X75中5wt%磷酸三苯酯和1wt%纳米二氧化硅的含量使环氧聚合物涂膜DER 671X75/T31的冲击强度提高了125%。环氧纳米复合材料DER 671X75/5%磷酸三苯酯/1%纳米二氧化硅/T31的热稳定性提高了45.35%。基于环氧树脂 DER 671X75/5% 磷酸三苯酯/1% 纳米二氧化硅/颜料/填料/添加剂/固化剂 T31 的环氧树脂涂料实现了涂层的机械性能、物理化学性能，并且在 500 摄氏度以上具有热降解。