Taiebeh Ansari - Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷, Tehran, Iran
Behnaz Hatamluyi, - Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷, Tehran, Iran
Zarrin Es haghi - Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷, Tehran, Iran

The goal of this research was the optimization of the synthesis of TiO2 nanoparticles (TiO2 NPs) in order to use them in the paint industry. For this purpose, several processes were tested such as; reverse microemulsion, reaction between TiCl4 and benzyl alcohol, sol gel method and reaction titanium esters with acid anhydrides [1-4]. In each method, by varying various factors such as pH, temperature, calcination time and other effective parameters, nanoparticles of titanium dioxide were produced and the conditions were optimized. The nanoparticles obtained from all syntheses were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FT-IR). The titanium dioxide nanoparticles were used in the production of two types of industrial products; acrylic thermoplastic paints and acrylic water based semi-gloss paint. TiO2 nanoparticles were being used in order to improve the efficiency and to provide new functionalities to the paints. The qualitative tests that were approved by the Institute of Standards & Industrial Research of Iran (ISIRI), and the industrial tests were carried out on the modified colors showed that the use of paints reinforced with nano titanium dioxide instead of paint containing titanium dioxide, had a significant effect on the improvement of the color properties. Nano titanium dioxide is used in paint to achievement two of good properties; photocatalytic activity and UV-protection. The combination of the photocatalytic effect, along with hydrophilic properties results in a paints self-cleaning effect. The surface will no longer need regular cleaning as the water and dirt will no longer stick on it.

Titanium dioxide nanoparticles, acrylic paints, photocatalytic activity