Evaluation of physico-chemical properties of electron beam-irradiated polycarbonate film |
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| Authors: | B Jaleh P Parvin N Sheikh F Ziaie M Haghshenas L Bozorg |
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| Institution: | aPhysics Department, Bu-Ali Sina University, 65174 Hamedan, Iran;bPhysics Department, Amirkabir University of Technology, P.O. Box 15875-4413, Hafez Avenue, Tehran, Iran;cNuclear Science and Technology Research Institute, Radiation Applications Research School, Tehran, Iran;dYazd Radiation Processing Center, P.O. Box 89175-389, Yazd, Iran;eEngineering Research Institute (ERI), Tehran, Iran |
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| Abstract: | In this work, polycarbonate (PC) film samples were irradiated with 10 MeV electrons at different doses ranging from 25 to 250 kGy. Characterization techniques viz. thermogravimetric analysis (TGA), Fourier transform infra-red spectroscopy (FTIR), X-ray diffraction analysis (XRD) and electron paramagnetic resonance (EPR) were exploited to understand the induced changes in the physico-chemical properties of the polymer. An increase in the decomposition temperature with increasing dose was observed, while the crystallinity remained unchanged as a result of the formation of cross-link bond. EPR technique characterized the stability of the free radicals in the irradiated PC. The result showed that cross-linking process occurs at low absorbed doses, whereas polymer degradation happens at higher doses. |
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| Keywords: | Electron beam Polycarbonate TGA XRD FTIR EPR |
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