In this work, an organic-inorganic flame retardant composite system was utilized by combining the renewable cardanol-based flame-retardant toughening agent (CF-PO(OPh)₂) and the core-shell SiO₂@MOF particles, then a series of high-performance epoxy composites with simultaneously enhanced mechanical properties, fire safety as well as smoke suppression effect were prepared with incorporating different ratio of the organic and inorganic flame retardant components. The epoxy composite containing 3% CF-PO(OPh)₂ and 2% SiO₂@UiO-66 (EP3) showed the most striking enhancements in the mechanical and flame retardant performances. The tensile strength and impact strength of EP3 was 48.8% and 25.3% higher than those of EP0, respectively. In view of flame retardant properties, EP3 showed maximum reductions in PHRR, SPR, CO, and CO₂ productions which were 30.5%, 25.8%, 51.4%, and 43.7% lower than those of EP0, respectively. The excellent flame retardant and mechanical properties of epoxy composites resulted from the synergetic effect of cardanol-based phosphorus-containing CF-PO(OPh)₂ and inorganic core-shell SiO₂@UiO-66 particles.

在这项工作中，通过将可再生腰果酚基阻燃增韧剂（CF-PO(OPh) ₂）和核壳 SiO ₂ @MOF 颗粒相结合，利用有机-无机阻燃复合体系，然后一系列通过掺入不同比例的有机和无机阻燃组分，制备出同时提高机械性能、防火安全性和抑烟效果的高性能环氧复合材料。含3% CF-PO(OPh) ₂和2% SiO ₂的环氧复合材料@UiO-66 (EP3) 在机械和阻燃性能方面表现出最显着的增强。EP3 的拉伸强度和冲击强度分别比 EP0 高 48.8% 和 25.3%。就阻燃性能而言，EP3 的PHRR、SPR、CO 和CO ₂产量的降低幅度最大，分别比EP0 降低了30.5%、25.8%、51.4% 和43.7%。环氧复合材料优异的阻燃性能和机械性能是腰果酚基含磷CF-PO(OPh) ₂与无机核壳SiO ₂ @UiO-66颗粒协同作用的结果。