Preparation and characterization of silver nanocomposite textile

Abstract

Nanostructured silver films of different thicknesses were deposited on surfaces of polypropylene nonwovens by magnetron sputter coating to obtain antibacterial and electrical conductive properties. The surface morphology of nanostructured silver films was investigated by atomic force microscopy (AFM). The antibacterial properties of the nonwovens coated with relatively thinner films were evaluated using the shake flask test. The conductivity of the nonwovens coated with relatively thicker films was examined using an ohm-meter. The results of the antibacterial test revealed that the antibacterial performance improved gradually as the film thickness increased from 0.5 to 3 nm. It is believed that the total amount of silver ions released from the coating was increased along with the increase in film thickness. As sputtering time prolonged, the grain sizes of the silver particles were increased and the coating became more compact. The results of the electrical conductivity test showed that the increased film thickness led to the improved electrical conductivity when the film was relatively thicker. The AFM images clearly revealed the change in surface morphology formed by sputter coating. The growth and coverage of the coating layer contributed to the improvement in its antibacterial and conductive properties.

Durable antibacterial finish on cotton fabric using hydrogel–silver nanocomposite

“…High bacterial growth as indicated by bacterial growth lawn (large indistinguishable collection of colonies) was observed everywhere. The observed zone of inhibition is a result of the leaching of active biocidal species Ag + ion from the embedded Ag particles present in the fabric 17 . The presence of the inhibition zone clearly indicates that the mechanism of the biocidal action of the fabric is due to the leached Ag + ion.…”

Plasma Surface Treatments of Nonwovens

“…Several studies showed metal, that is, silver, sputtering onto polypropylene and polyester nonwovens and polyacrylonitrile electrospun nonwovens to impart antibacterial property [51,52,53]. Shahidi et al [16] deposited copper onto the surface of cotton fabric samples by DC magnetron sputtering for antibacterial effect and found that duration of the application process was shorter compared to conventional application processes using nonionic detergent and metallic salts.…”

Functional Nano and Micro-Scale Thin Film Deposition on Textiles: Emerging Technologies and Applications

“…The surface resistance of nonwoven material was also reduced [35]. Wang et al, Sonehara et al and Jianfeng et al [36,37,38,39] reported sputtering of several metals onto polypropylene, polyester nonwovens and polyacrylonitrile electrospun nonwovens, and their results showed improved antibacterial performance and electromagnetic interference (EMI) shielding efficiency.…”