In this study, poly(lactic acid) (PLA)-based nanocomposites were fabricated from PLA and silicon carbide (SiC) using solution blending. The surfaces of SiC nanoparticles were treated with a titanate-coupling agent. The influence of the SiC content on thermal stability, flexural properties, impact strength and fracture morphology of the nanocomposites was investigated. The impact strength of the nanocomposites was increased by the introduction of SiC nanoparticles. The nanocomposites containing SiC nanoparticles treated with a titanate-coupling agent (termed T-SiC) exhibited higher impact strengths than the nanocomposites containing neat SiC nanoparticles under the same conditions. Scanning electron microscopy results showed good compatibility between the T-SiC nanoparticles and the PLA matrix.

中文翻译：

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通过钛酸酯偶联剂的表面改性提高聚乳酸/碳化硅纳米复合材料的冲击强度

在这项研究中，聚乳酸 (PLA) 基纳米复合材料由 PLA 和碳化硅 (SiC) 使用溶液混合制成。碳化硅纳米粒子的表面用钛酸酯偶联剂处理。研究了碳化硅含量对纳米复合材料的热稳定性、弯曲性能、冲击强度和断裂形貌的影响。碳化硅纳米颗粒的引入提高了纳米复合材料的冲击强度。在相同条件下，含有用钛酸酯偶联剂（称为 T-SiC）处理的 SiC 纳米颗粒的纳米复合材料比含有纯 SiC 纳米颗粒的纳米复合材料具有更高的冲击强度。扫描电子显微镜结果表明 T-SiC 纳米颗粒与 PLA 基体之间具有良好的相容性。