This work aims to explore the antibacterial activity of PE–TiO₂/Ag nanocomposites. Rutil-TiO₂/Ag hybrid nanoparticles (the content of 0.2–0.6 wt%) were introduced into the PE matrix under melt mixing process. The TEM images for the ultra-thin section (about 80 nm thick) of nanocomposite showed that TiO₂/Ag hybrid nanoparticles were well dispersed into the PE matrix. Moreover, mechanical tests indicated that the tensile property of PE was slightly reduced in the presence of hybrid nanoparticles due to the low contents of nanofillers. Besides, the antibacterial tests revealed that the nanocomposites displayed a potent bactericidal efficiency against both E. coli and S. aureus bacteria (i.e. 1.83 log and 1.9 log after 24 h, respectively). The developed fabrication technique and delivered results of the TiO₂/Ag nanohybrid-based PE nanocomposite enable a promising avenue to design and construct the advanced nanostructured hybrid materials for potential antimicrobial applications.

这项工作旨在探索PE-TiO ₂ / Ag纳米复合材料的抗菌活性。在熔融混合过程中，将Rutil-TiO ₂ / Ag杂化纳米颗粒（含量为0.2–0.6 wt％）引入PE基体。纳米复合材料的超薄截面（约80 nm厚）的TEM图像显示，TiO ₂ / Ag杂化纳米颗粒很好地分散在PE基质中。此外，机械测试表明，由于纳米填料的含量低，在存在混合纳米颗粒的情况下，PE的拉伸性能略有降低。此外，抗菌测试表明，纳米复合材料对大肠杆菌和金黄色葡萄球菌均显示出有效的杀菌效率。细菌（即24小时后分别为1.83 log和1.9 log）。TiO ₂ / Ag纳米杂化基PE纳米复合材料的发达的制造技术和交付的结果为设计和构建用于潜在抗菌应用的先进纳米结构杂化材料提供了广阔的前景。