Modifications induced by gamma irradiation to Makrofol polymer nuclear track detector

The aim of the present study was extended from obtaining information about the interaction of gamma rays with Makrofol DE 7-2 track detector to introduce the basis that can be used in concerning simple sensor for gamma irradiation and bio-engineering applications. Makrofol polymer samples were irrad...

Full description

Saved in:
Bibliographic Details
Published in:Journal of advanced research 2015-03, Vol.6 (2), p.219-224
Main Authors: Tayel, A., Zaki, M.F., El Basaty, A.B., Hegazy, Tarek M.
Format: Article
Language:English
Subjects:
Gamma irradiation
Makrofol DE 7-2
Original
Photoluminescence
UV–vis
Vicker’s hardness
Wettability
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The aim of the present study was extended from obtaining information about the interaction of gamma rays with Makrofol DE 7-2 track detector to introduce the basis that can be used in concerning simple sensor for gamma irradiation and bio-engineering applications. Makrofol polymer samples were irradiated with 1.25MeV 60Co gamma radiations at doses ranging from 20 to 1000kGy. The modifications of irradiated samples so induced were analyzed using UV–vis spectrometry, photoluminescence spectroscopy, and the measurements of Vickers’ hardness. Moreover, the change in wettability of irradiated Makrofol was investigated by the contact angle determination of the distilled water. UV–vis spectroscopy shows a noticeable decrease in the energy band gap due to gamma irradiation. This decrease could be attributed to the appearance of a shift to UV spectra toward higher wavelength region after irradiation. Photoluminescence spectra reveal a remarkable change in the integrated photoluminescence intensity with increasing gamma doses, which may be resulted from some matrix disorder through the creation of some defected states in the irradiated polymer. The hardness was found to increase from 4.78MPa for the unirradiated sample to 23.67MPa for the highest gamma dose. The contact angle investigations show that the wettability of the modified samples increases with increasing the gamma doses. The result obtained from present investigation furnishes evidence that the gamma irradiations are a successful technique to modify the Makrofol DE 7-2 polymer properties to use it in suitable applications.
ISSN:2090-1232
2090-1224
DOI:10.1016/j.jare.2014.01.005