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KORAL KOÇ, SERPİL

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KORAL KOÇ

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SERPİL

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    Publication
    Applications of atomic force microscopy in textiles
    (Sage, 2015-01-01) Koç, Serpil Koral; KORAL KOÇ, SERPİL; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü; 0000-0002-0739-8256; AFZ-8325-2022
    Potential applications of atomic force microscopy (AFM) in textiles are explained. For this purpose samples were carefully selected from both natural and synthetic fibers. Cotton, wool, conventional polyethylene terepthalate (PET), antibacterial PET, and antistatic PET were investigated by means of 3D topography imaging, phase imaging, and calculation of their Rq values. The distribution of the additives in the cross sections of antibacterial PET and antistatic PET were analyzed. Moreover, differences between inner and outer cross section of trilobal PET was observed by force spectroscopy. The results are discussed considering the fiber properties. It is concluded that AFM is a powerful tool to investigate different properties of textile fibers, and it gives valuable information.
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    A new approach to determination of the instability of air-jet textured yarns
    (Inda, 2015-01-01) Koç, Serpil Koral; Düzyer, Şebnem; Hockenberger, Aslı; KORAL KOÇ, SERPİL; DÜZYER GEBİZLİ, ŞEBNEM; HOCKENBERGER, ASLI; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü; 0000-0002-0739-8256; 0000-0003-3737-5896; AFZ-8325-2022; AFO-0698-2022; IMR-3897-2023
    Determination of the instability of air-jet textured yarns is a very important aspect of their quality characterization. To overcome this problem many researchers have suggested different techniques, however none has been accepted as a standard method. Among all the methods, that suggested by Demir et al. takes attention, since it was improved after investigating the advantages and disadvantages of most of the techniques in use. Recovery from strain measurements are commonly used to get information about fiber molecular structure. In this study, instability of air-jet textured yarns was investigated by using both Demir's instability test method and recovery from strain measurements. It was observed that Demir's method is a practical and reliable way to compare the instability of air-jet textured yarns produced from the same raw material. For comparing different materials it was more beneficial to use recovery from strain measurements.