PREPARATION AND CHARACTERIZATION OF TIO2-SILICONE NANOCOMPOSITE OBTAINED BY SOL-GEL METHOD

The sol-gel process is attractive for the nanocomposite preparation due to its unique advantages such as low temperature processing, high homogeneity of final products and its capability to generate materials with controlled surface properties. The preparation of TiO2-Silicone nanocomposite by sol–g...

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Published inAnnals of the University of Oradea: Fascicle of Textiles, Leatherwork Vol. XVI; no. 1; pp. 123 - 126
Main Authors KOIZHAIGANOVA Meruyert, ASLAN Ahmet, GÖDE Ceren, MEYER Michael
Format Journal Article
LanguageEnglish
Published Editura Universităţii din Oradea 01.05.2015
Subjects
Coating
Finishing process
Leather
Sol-gel
Ti-O2
Ti-O2-Silicone nanocomposite
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Summary:The sol-gel process is attractive for the nanocomposite preparation due to its unique advantages such as low temperature processing, high homogeneity of final products and its capability to generate materials with controlled surface properties. The preparation of TiO2-Silicone nanocomposite by sol–gel method, which is efficient at producing thin, transparent multi-component oxide layers, was considered due to its possible application as finishing coating on leather. In this study the preparation and characterization of TiO2-Silicone nanocomposite were investigated. TiO2-Silicone nanocomposite was prepared from titanium n-butoxide (TBO) and tetraethoxysilane (TEOS) catalyzed with acid. The chemical structure of the composite was evaluated by means of Raman spectroscopy. Atomic Force Microscopy (AFM) was employed to characterize the surface properties of composite films. In summary, the colloidal TiO2–Silicone nanocomposite solution was successfully synthesized using the sol-gel method. The turbidity value of the TiO2–Silicone nanocomposite solution was 12.7 ntu. The TiO2–Silicone nanocomposite was mildly acidic with a pH value of 5.2. It was determined that the viscosity of the TiO2– Silicone nanocomposite solution was approximately equal to 1-3 mPa.s. The particles sizes were approximately 5.4 nm, with the coatings being approximately 0.06 µm in thickness. From the results obtained it was revealed that the TiO2-Silicone nanocomposite can be used as coating in leather fninshing process.
ISSN:1843-813X