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Antibacterial nanocomposite based on carbon nanotubes–silver nanoparticles-co-doped polylactic acid

  • Lu GanEmail author
  • Aobo Geng
  • Long Jin
  • Qiang Zhong
  • Linjie Wang
  • Lijie XuEmail author
  • Changtong Mei
Original Paper
  • 19 Downloads

Abstract

In the present study, carbon nanotubes (CNTs)–silver nanoparticles (AgNPs)-co-doped polylactic acid (PLA) nanocomposites were prepared through two-solvent-assisted method. The morphology and structure of the prepared nanocomposites were characterized, and the thermal, mechanical and antibacterial properties of the nanocomposites were tested afterward. The results indicated that the CNTs and AgNPs were well dispersed within the PLA matrix, in which the CNTs and AgNPs attached with each other. The incorporation of these two reinforcement fillers significantly enhanced the thermal stability of the PLA. Due to strong intermolecular interactions, the CNTs and AgNPs improved the tensile strength of the PLA. Additionally, the prepared nanocomposites showed promising antibacterial effect on staphylococcus haemolyticus due to the existence of AgNPs. Having improved thermal and mechanical properties, as well as antibacterial capability, the prepared PLA nanocomposites have the application potential in packaging areas.

Keywords

Polylactic acid nanocomposite Carbon nanotubes Silver Antibacterial Enhanced properties 

Notes

Acknowledgements

This work was supported by Natural Science Foundation of Jiangsu Province, China (BK20160938), Natural Science Foundation of China (51708297) and Scientific Research Foundation for High-level Talents of Nanjing Forestry University (GXL2016021).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.College of Materials Science and EngineeringNanjing Forestry UniversityNanjingPeople’s Republic of China
  2. 2.College of Biology and EnvironmentNanjing Forestry UniversityNanjingPeople’s Republic of China

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