X-ray irradiation-induced changes in (PVA–PEG–Ag) polymer nano-composites films

International Conference on Atomic and Nuclear Physics

November 17-18, 2016 Atlanta, USA

M M Abutalib

King Abdulaziz University, Saudi Arabia

Posters & Accepted Abstracts: J Astrophys Aerospace Technol

Abstract :

The effects of X-ray irradiation on the structural, thermal and optical properties of polyvinyl alcohol�polyethylene glycol� silver (PVA�PEG�Ag) nano-composites have been investigated. The samples of nano-composites were prepared by adding Ag nanoparticles with 5 wt% to the (PVA�PEG) blend. The films of 0.05 mm thickness were prepared by the casting method. These films were irradiated with X-ray doses ranging from 20 to 200 kGy. The resultant effect of X-ray irradiation on the structural properties of PVA�PEG�Ag has been investigated using X-ray diffraction and Fourier transform infrared spectroscopy. Also, thermal property studies were carried out using thermogravimetric analysis. Further, the transmission of the PVA�PEG�Ag samples and any color changes were studied. Fourier transform infrared spectroscopy measurements showed that the crosslinking is the dominant mechanism at the dose range 50�200 kGy. This led to a more compact structure of PVA�PEG�Ag samples which resulted in an improvement in its thermal stability with an increase in the activation energy of thermal decomposition. Moreover, the color intensity ��E was greatly increased with an increase in the dose and was accompanied by a significant increase in the yellow color component.

Biography :

M M Abutalib is an Associate Professor of Nuclear Physics and his research area includes Nanomaterials and Materials Science.

Email: mabutalib@kau.edu.sa