Open AccessELECTROSPINNING OF ANTIBACTERIAL POLYURETHANE/ZnO NANOFIBERS
Author(s) -
I.Y. Mol,
Funda Cengiz Çallıoğlu
Publication year - 2021
Publication title -
tex teh
Language(s) - English
Resource type - Journals
ISSN - 2068-9101
DOI - 10.35530/tt.2021.29
Subject(s) - electrospinning , nanofiber , materials science , polyurethane , antibacterial activity , surface tension , chemical engineering , thermal stability , composite material , viscosity , air permeability specific surface , polymer , physics , layer (electronics) , quantum mechanics , biology , bacteria , engineering , genetics
In this study, it is aimed to produce and characterize antibacterial polyurethane (PU)/Zinc oxide(ZnO) nanofibers by electrospinning method. Firstly, polymer solutions were prepared at various ZnOconcentrations such as 0, 0.2, 0.4, 0.6, 0.8, 1. Then solution properties (conductivity, viscosity, surfacetension) were determined and analysed the effects of ZnO concentration on the solution properties. PU/ZnOnanofibers produced via electrospinning under the optimum process parameters (voltage, distance betweenelectrodes, feed rate and atmospheric conditions). Finally, the nanofibers were characterized in terms offibre morphology, thermal stability, permeability and antibacterial activity using SEM-EDS, DSC-TGA,water vapour permeability and disk diffusion methods. According to the solution results; it was observedthat conductivity and surface tension decrease significantly with ZnO addition. On the other hand, solutionviscosity increases as the ZnO concentration increases. From the SEM images, it has been seen clearly thataverage fibre diameter increases with ZnO concentration and incorporation of ZnO particles to the fibrestructure was verified by SEM-EDS. According to the thermal analyse result, nanofibers begin to degradebetween 271.94 ºC and 298.73 ºC. In addition, water vapour permeability increases as the ZnOconcentration increase. Lastly antibacterial activity against gram negative (E.coli) and gram positive (S.aureus) was determined with specific zone diameter.