Antimicrobial PVDF nanofiber composites with the ZnO - vermiculite - chlorhexidine based nanoparticles and their tensile properties
نویسندگان
چکیده
The poly(vinylidene fluoride) (PVDF) nanofiber materials have attracted attention due to their enhanced and exceptional nanostructural characteristics. Electrospinning PVDF based is one of the important new for rapidly growing technology development such as conductive tissue engineering, scaffold materials, filters medical textiles applications. At these areas risk microbial contamination very high, hence in this study with antimicrobial zinc oxide (ZnO), oxide/vermiculite (ZnO/V), oxide/vermiculite-chlorhexidine (ZnO/V_CH) vermiculite-chlorhexidine (V_CH) nanofillers were prepared by electrospinning, via one-step electrospinning process. diameters orientation investigated using scanning electron microscope (SEM). ZnO/V_CH V/CH positive ζ - potential values incorporated into nanofibers an average diameter 108 nm PVDF_ZnO/V_CH 100 PVDF_V_CH samples. In contrast, ZnO ZnO/V negative reacted intensively polymer. slightly hydrophobe character was demonstrated water contact angle from ∼100°. chemical interactions evaluated Fourier transform infrared spectroscopy (FTIR). presence β-phase original small traces α-phase PVDF_ZnO PVDF_ZnO/V samples confirmed. PVDF_V/CH where specific interaction chains CH a rapid decrease fraction evaluated. mechanical properties on Young's modulus (E) tensile strength (Rm) test curves. Antimicrobial activity (longer than 48 h) against S. aureus E. coli obtained.
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ژورنال
عنوان ژورنال: Polymer Testing
سال: 2021
ISSN: ['1873-2348', '0142-9418']
DOI: https://doi.org/10.1016/j.polymertesting.2021.107367