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Antimicrobial Polypropylene Loaded by Silver Nano Particles
S. M. Gawish,S. Mosleh 한국섬유공학회 2020 Fibers and polymers Vol.21 No.1
Nowadays antimicrobial polypropylene fabrics are increased due to incorporation of nano metals and metal oxidesduring their production. In situ, synthesis of silver nano particles onto non-woven polypropylene (PP) fabric bearingantimicrobial properties was investigated. Silver nanoparticles were prepared by chemical method using silver nitrate,concentrations 5-40 m mole/l, sodium hydroxide and glucose as a reducing agent at 90 °C for 2 hrs. Then, padding, dryingand curing the PP treated fabric at 150 °C for 5 min was carried out. Silver nano particles dispersed onto PP was estimatedbefore and after five washings. Characterization of silver nano particles was investigated by, XRD, SEM and EDX, whichrevealed the presence of silver nanoparticles in the size range 20-40 nm. PP color for untreated and silver treated sampleswas evaluated at λmax 400 nm using colorimetric data L*, a*, b and colour strength (K/S). The antimicrobial activity of PPtreated fabric against some microorganisms such as S. aureus, E. coli and C. candida was evaluated after 24 hrs contact timeand proved to be highly effective with excellent results.