Cairo University

MTPR Journal


Preparation and optical properties of PVA/Tio2

A.M.Shehap*; Dana Saif Akil
Department of Physics, Faculty of Science, Cairo University, Giza , Egypt

Vol./Issue: 14 , id: 110

The composite films of PVA/Tio2 were prepared successfully by using the solvent-casting technique with different composition ratios of the two materials (1.25, 2.5, 5 , 7.5 , 10 and 12.5 wt%Tio2). Ultrasonic were used in order to get better dispersion. Optical properties measurements explain the effect of adding Tio2 on absorption coefficient, refractive index, extinction coefficient and electronic transition. The absorbance spectrum was recorded in the wavelength range 200-1000nm.It was found that absorbance increase by increasing the amount of Tio2 in the film.