https://orcid.org/0000-0003-3730-3710
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Abstract
In the current study, legnosulfonate-polyvinyl alcohol/silver (LG-PVA/Ag) nanocomposite film was prepared. Samples from the LG-PVA/Ag nanocomposite film were irradiated with 5–50 kGy γ dosages. The optical characterization of the irradiated films has been investigated considering dosage applying XRD, UV spectroscopy and color difference studies. The optical bandgap, refractive index, Urbach energy, optical dielectric parameters, chromaticity coordinates, tristimulus values, color intensity and color intercepts have been calculated and interpreted based on γ dosages. The bandgap decreased from 4.80 to 3.61 eV with raising the γ dosage up to 50 kGy, together with a rise in Urbach energy. This is attributable to the domination of crosslinking, which damages the crystalline phase as indicated by XRD. Moreover, the pristine LG-PVA/Ag film demonstrated noteworthy kindliness to changes in color by γ irradiation, as the color intensity reached a value greater than 5. This is a sensible contest in marketable reproduction in the printing press.
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Notes on contributors
E. M. Mahrous
Dr. Eman Mahrous Assistant Professor in Physics Department, Faculty of science, Taibah University. The field of research is the radiation effects on polymer and polymer nanocomposites for the application in industry.
M. M. E. Barakat
Dr M. ME. Barakat, Assistant Professor in Physics Department, Faculty of Science, Alexandria University, Alexandria, Egypt. PhD in physics from Alexandria University, 2012. She is interested in research in the field of superconductivity and nanostructures.
Radiyah A. Bahareth
Dr Radiyah A. Bahareth, Associate professor, College of Science, Jeddah University, Jeddah, Saudi Arabia. PhD in physics, 2004. Associate professor 2015, from physics department, Girls College of Education, King Abdel Aziz University, Jeddah, Saudi Arabia. The field of research is the radiation effects on polymer and polymer nanocomposites for the application in industry.
Saad Aldawood
Dr. Saad Aldawood Associate professor, College of Science, King Saud University, The field of research is the radiation effects on nanomaterials for the application in industry.
S. A. Nouh
Prof S. A. Nouh, Prof of radiation physics since 2005, Physics department, Faculty of science, Ain Shams University, Cairo, Egypt. The head of radiation physics unit that deals with the modification of the physical properties of polymer and polymer nanocomposite materials, improving its performance in dosimetery and industrial fields. Member in the Egyptian Universities promotion Committees up to 2015. Honoring by the Egyptian prime ministers, 1992 & 2002, as an excellent researcher.