Abstract
Abstract Casein-based TiO 2 nanocomposite was innovatively prepared from casein, polyacrylate and TiO 2 powders via single-in-situ soap-free polymerization. Effects of TiO 2 dosage on the emulsion stability and film properties were investigated. Chemical structure and microstructure of the composite particles were characterized by fourier-transform infrared spectroscopy (FT-IR), transmission electron microscope (TEM) and scanning electron microscope (SEM). The results showed that the as-prepared composite latex exhibited evident core-shell structure with the majority of TiO 2 incorporated inside, of which the average size was approximately 100 nm. Significantly, the composite film showed superior covering ability, impressive self-cleaning properties and good tensile strength, which promise its potential use as high-performance coatings on leather, textile or other substrates thus improve their added values.
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