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Nanostructured Antibacterial Silver Deposited On Polypropylene Nonwovens

Author

Listed:
  • WANG HONG-BO

    (Key Laboratory of Eco-Textiles (Southern Yangtze University), Ministry of Education, Wuxi, China 214122, China)

  • WANG JIN-YAN

    (Key Laboratory of Eco-Textiles (Southern Yangtze University), Ministry of Education, Wuxi, China 214122, China)

  • WEI QU-FU

    (Key Laboratory of Eco-Textiles (Southern Yangtze University), Ministry of Education, Wuxi, China 214122, China)

  • HONG JIAN-HAN

    (Key Laboratory of Eco-Textiles (Southern Yangtze University), Ministry of Education, Wuxi, China 214122, China)

  • ZHAO XIAO-YAN

    (Key Laboratory of Eco-Textiles (Southern Yangtze University), Ministry of Education, Wuxi, China 214122, China)

Abstract

Nanostructured silver films were deposited on polypropylene (PP) nonwovens by RF magnetron sputter coating to obtain the antibacterial properties. Shake flask test was used to evaluate the antibacterial properties of the materials. Atomic force microscope (AFM) was utilized to observe the surface morphology. Energy-dispersive X-ray (EDX) was also employed to analyze the surface elemental compositions. The antibacterial results indicated that the prolonged deposition time led to a significant improvement in antibacterial effect, and sputtering power and argon pressure did not show obvious effect on antibacterial performance. It is believed that the total amount of silver ions released from the silver coating was increased as the deposition time increased. AFM images and quantitative analysis of EDX, respectively revealed that increase in deposition time led to the increased coverage of silver film and the increased silver weight percentage per unit surface, which provided evidences for the increased release rate of silver ions from the coating. Moreover, it was found that the optimum silver coating thickness was about 3 nm, taking antibacterial effect and cost of production into account.

Suggested Citation

  • Wang Hong-Bo & Wang Jin-Yan & Wei Qu-Fu & Hong Jian-Han & Zhao Xiao-Yan, 2007. "Nanostructured Antibacterial Silver Deposited On Polypropylene Nonwovens," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 14(04), pages 553-557.
    • Handle: RePEc:wsi:srlxxx:v:14:y:2007:i:04:n:s0218625x07009839
    DOI: 10.1142/S0218625X07009839
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