The surface of silicon dioxide (SiO 2 ) nanoparticles was treated with oleic acid, and the resulting surface properties were characterized. Bio-based poly(lactic acid) (PLA)/poly(butylene succinate)/SiO 2 nanocomposites were fabricated via solution blending. The influence of the SiO 2 content on the thermal stability, flexural properties, impact strength, and morphology of the prepared nanocomposites was investigated using several techniques. The impact strength of the nanocomposites with surface treated SiO 2 (O-SiO 2 ) nanoparticles substantially increased with increasing O-SiO 2 content from 0 to 3 wt%. Scanning electron microscopy imaging revealed that the nanocomposites with O-SiO 2 nanoparticles exhibited numerous tortuous cracks and ridges, indicating ductile deformation prior to fracturing.

中文翻译：

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通过加入聚（丁二酸丁二醇酯）和二氧化硅纳米粒子提高聚（乳酸）的冲击强度

二氧化硅（SiO 2 ）纳米颗粒的表面用油酸处理，并表征了所得的表面性质。通过溶液共混制备生物基聚乳酸（PLA）/聚丁二酸丁二醇酯/SiO 2 纳米复合材料。使用多种技术研究了SiO 2 含量对制备的纳米复合材料的热稳定性、弯曲性能、冲击强度和形态的影响。随着O-SiO 2 含量从0wt%增加到3wt%，具有表面处理的SiO 2 (O-SiO 2 )纳米颗粒的纳米复合材料的冲击强度显着增加。扫描电子显微镜成像显示，含有 O-SiO 2 纳米颗粒的纳米复合材料表现出许多曲折的裂纹和脊，表明在断裂前发生了延性变形。