The objective of this study is to explore a method to improve hydrophilicity of the surface of formers that could be more easily dipped to produce high quality dipped rubber products. Photocatalytic TiO2 composite films were prepared by sol-gel method. Glass formers were coated with nitrogen doped TiO2 nanocomposite film by dipping method and annealed at 600°C for 1 h. Phase formation of TiO2 was characterized by XRD. Morphology of the TiO2 films was observed by using atomic force microscopy (AFM). Optical absorption of the films and degradation concentration of methylene blue had been measured employing UV-Vis spectrophotometer. The hydrophilicity of the thin films was determined in terms of the contact angles of water and NR rubber latex droplets on the coated TiO2 composite films under visible light irradiation. It was found from the experimental study that the TiO2 nano-composite film can improve wet-ability of the coated former surfaces.
This study aimed to synthesize and then characterized the physical property of thiocarbamide (SN) doped TiO2 thin films performance coated on stainless steel surfaces at low temperature by a rotary evaporator-assisted sol–gel process. The study also investigated the efficiency of this compound to inhibit the growth of Staphylococcus aureus. The films were analyzed using X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photo electron microscopy (XPS) and inductively couple plasma (ICP). The result of the physical properties showed the smaller size of doped compound crystal (10.3 nm.) than undoped crystal (11.0 nm.) by the x-ray refraction test. The antibacterial activities against Staphylococcus aureus (63%) under UV irradiation showed SN doped TiO2 nano particulates film enhance bacterial inactivation within 150 minutes. The expected overall properties of nanocomposites may open the way towards new applications of high performance stainless steel, leading to an innovative product development in the hospitals, electronics for coatings and many other applications.
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