Multifunctional ZnO/Nylon6 nanofiber mats by an electrospinning- electrospraying hybrid process for use in protective applications

Abstract

ZnO/Nylon6 nanofiber mats were prepared by an electrospinning- electrospraying hybrid process in which ZnO nanoparticles were dispersed on the surface of Nylon6 nanofibers without becoming completely embedded. The prepared ZnO/Nylon6 nanofiber mats were evaluated for their abilities to kill bacteria or inhibit their growth and to catalytically detoxify chemicals. Results showed that these ZnO/Nylon6 nanofiber mats had excellent antibacterial efficiency (99.99%) against both the Gram-negative Escherichia coli and Gram-positive Bacillus cereus bacteria. In addition, they exhibited good detoxifying efficiency (95%) against paraoxon, a simulant of highly toxic chemicals. ZnO/Nylon6 nanofiber mats were also deposited onto nylon/cotton woven fabrics and the nanofiber mats did not significantly affect the moisture vapor transmission rates and air permeability values of the fabrics. Therefore, ZnO/Nylon6 nanofiber mats prepared by the electrospinning-electrospraying hybrid process are promising material candidates for protective applications. © 2011 National Institute for Materials Science.