en گروه سرامیک Ceramic Materials and Engineering Research Paper Research Paper <span style="font-size:11pt"><span style="line-height:150%"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">This research is focused on the synthesis of zinc oxide nanoparticles by means of the sol-gel conventional method, followed by the formulation of a zinc oxide-polypropylene (ZnO: PP) masterbatch using a twin-screw extruder. The next step involved the fabrication of antibacterial fibers through electrospinning. The resulting Nano powders, masterbatch, and fibers were subjected to a series of characterization techniques. X-ray diffraction (XRD) was used to examine the crystalline structure, field emission scanning electron microscopy (FESEM) was employed to scrutinize the morphology of the samples, energy-dispersive X-ray spectroscopy (EDX) was adopted for elemental analysis, and Fourier-transform infrared spectroscopy (FTIR) was hired to identify the chemical bonds.</span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:150%"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">Thermogravimetric analysis (TGA) indicated a three-stage weight loss process, and differential scanning calorimetry (DSC) showed a primary endothermic peak centered at about 317 &deg;C and a pronounced exothermic peak at approximately 455 &deg;C. XRD confirmed the hexagonal wurtzite structure of the zinc oxide nanoparticles and the presence of the alpha (&alpha;) crystal form in polypropylene. FESEM imaging revealed that the zinc oxide and masterbatch samples had a uniform size and shape, predominantly in the nanometer range with an elongated spherical morphology. The antibacterial properties of polypropylene fibers containing varying concentrations of zinc oxide, including 1.2, 2.4, and 5 wt.%, were tested against Escherichia coli and Staphylococcus aureus.</span></span></span></span></span></span></span><br> &nbsp; zinc oxide nanoparticles,masterbatch,twin-screw extruder 141 151 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-5647-1&slc_lang=en&sid=1 Salahaldin Mansur Alduwaib absnano.951@gmail.com 1800319475328460021293 1800319475328460021293 Yes Department of Science, Mustansiriyah University, Collage of Basic Education, Baghdad, Iraq reihane etefagh r.etefagh@gmail.com 1800319475328460021294 1800319475328460021294 No Borhan Nano Scale Company, Mashahd, Iran Boshra Ghanbari Shohany bo.gh@mail.um.ac.ir 1800319475328460021295 1800319475328460021295 No Borhan Nano Scale Company, Mashahd, Iran