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Journal of Nanomaterials
Volume 2018, Article ID 6546193, 7 pages
https://doi.org/10.1155/2018/6546193
Research Article

Durable and Washable Antibacterial Copper Nanoparticles Bridged by Surface Grafting Polymer Brushes on Cotton and Polymeric Materials

1School of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, China
2School of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK
3College of Textiles and Garments, Southwest University, Chongqing 400715, China

Correspondence should be addressed to Xuqing Liu; ku.ca.retsehcnam@uil.gniqux

Received 14 September 2017; Accepted 27 November 2017; Published 29 January 2018

Academic Editor: Rajesh R. Naik

Copyright © 2018 Chufeng Sun et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

To increase the durability of antibacterial coating on cotton and polymeric substrates, surface initiated grafting polymer brushes are introduced onto the substrates surface to bridge copper nanoparticles coatings and substrate. The morphologies of the composites consisting of the copper nanoparticles and polymer brushes were characterized with scanning electron microscopy (SEM). It was found that copper nanoparticles were uniformly and firmly distributed on the surfaces of the substrates by the polymer brushes; meanwhile, the reinforced concrete-like structures were formed in the composite materials. The substrates coated by the copper nanoparticles showed the efficient antibacterial activity against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) even after washing by 30 cycles. The copper nanoparticles were tethered on the substrates by the strong chemical bonds, which led to the excellent washable fitness and durability. The change of the phase structure of the copper was analyzed to investigate the release mechanism of copper ions.