The application of rutile nano-crystalline titanium dioxide as UV absorber

angleški

2010

letnik 40, številka 1

koprecipitacija   rutil   sufraktanti   titanov dioksid   UV absorber

Strokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale

Nano-crystalline titanium dioxide (TiOsub2) in rutile crystal form, generally used to indicate particles less than 100 nm in diameter, is mainly applied as pigment, adsorbent and UV absorber. The incorporation ol a nano-sized titanium dioxide powder into a liquid media is made by dispersion process, that the final product consists of fine particles distribution throught the medium. So it is regarded as necessary for us to investigate in detail the factors which may have important effect upon the homogenious distribution of TiOsub2 nanoparticles in clearcoat as liquid media. ln this work, titanium dioxide nano-powders were prepared by the co-precipitation method. Using various techniques, including transmission electron microscopy (TEM) and X-ray diffraction (XRD), obtained powders were studied in order to lind the possible elements of affecting the microstructures and grain size. The aim of this study is to determine the photostabilisation efficiency of TiOsub2 in a clear coat as UV absorber considering the preparation of stable dispersions by using different surfactants and percentage of TiOsub2.

18.12.2015