In this study, we used both silk fibroin nanofibers (nSFs) and rice husk silica nanoparticles as epoxy (EP) resin reinforcement materials to improve the modes I and II interlaminar fracture toughness of EP-filled carbon fiber-based (CF/EP) composites. The nSFs were obtained by electrospinning, while the rice husk silica nanoparticles were obtained via acidic and thermal treatments. The results showed that the interfacial shear strength, GIC, and GIIC of the CF/EP composites improved by 25, 36, and 30%, respectively, by adding 0.2 wt% nSF and 20 wt% silica nanoparticles.

中文翻译：

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使用稻壳二氧化硅和丝素蛋白电纺纳米纤维增强碳纤维填充环氧基复合材料的 I 型和 II 型层间断裂韧性

在这项研究中，我们使用丝素蛋白纳米纤维 (nSFs) 和稻壳二氧化硅纳米粒子作为环氧树脂 (EP) 树脂增强材料，以提高 EP 填充碳纤维基 (CF/EP) 复合材料的 I 型和 II 型层间断裂韧性. nSFs是通过静电纺丝获得的，而稻壳二氧化硅纳米颗粒是通过酸性和热处理获得的。结果表明，通过添加 0.2 wt% nSF 和 20 wt% 二氧化硅纳米粒子，CF/EP 复合材料的界面剪切强度、GIC 和 GIIC 分别提高了 25%、36% 和 30%。