TY  - JOUR
T1  - Influence of Oleic Acid (Vegetable Oils) and TiO<sub>2</sub> Addition on the Optical Properties and
Chromaticity of Chitosan Composite Films
AU - M. Hussien, Elham AU - M. Desoky, W. AU - S. Hanafy, Magda AU - W. Guirguis, Osiris 
JO  - Journal of Engineering and Applied Sciences
VL  - 15
IS  - 22
SP  - 3660
EP  - 3667
PY  - 2020
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2020.3660.3667
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2020.3660.3667
KW  - Chitosan
KW  -TiO2 nanoparticles
KW  -Oleic acid
KW  -Optical properties and chromaticity
AB  - Cs/OA/TiO<sub>2</sub> (NPs) composite films were
synthesis via conventional solution casting technique. The
chromaticity, CIE tristimulus values, color parameters
andoptical properties of Chitos an, Cs, films with the
addition of TiO<sub>2</sub> and Oleic acid were investigated using
the transmittance and reflectance measurements of the
spectrophotometric. The absorption, &#945;, coefficient of the
composite films were estimated. Therefore, the optical
band gaps and their type were estimated with effect of
additions. The refractive index of the films was estimated.
Subsequently, the lattice dielectric constant &epsi;<sub>L</sub> and the
ratio of the number carriers concentration to their
effective mass, the real (&epsi;<sub>1</sub>) and imaginary (&epsi;<sub>2</sub>) parts of the
dielectric constants, complex optical conductivity (real, &#963;1
and imaginary, &#963;<sub>2</ub>), The volume energy loss function,
VELF and the surface energy loss function were
calculated. Moreover, Opto-electrical parameters such as
the relaxation time, optical mobility and optical resistivity
were extracted using the Drude theory. The developed
Chitosan films supporting an optimized amount of TiO<sub>2</sub>
(NPs) and Oleic acid could be employed in industry and
medicine applications.
ER  -