Abstract
In this study, the effect of CuO nanoparticles on antifungal activity of polyurethane/CuO coating film was studied. CuO nanoparticles with concentrations of 1%, 2% and 5% w/v were prepared. Characterisation of nanoparticles and the coated surface were carried out using UV–vis Spectroscopy, DLS, XRD and TEM. The images of TEM were used to study the dispersion of nanoparticles in the coating film. The best nanoparticle size distribution was obtained in a coating with 2 wt% of nanoparticles, in which by further increasing the concentration up to 5 wt%, the nanoparticles dispersion was diminished and rather accumulation was observed in the coating film. The antifungal activity of polyurethane /CuO coating film against one type of fungus (penicillium) was measured by disc-diffusion method and the optimum conditions were determined.
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