A Comparative Study on EB-Radiation Deterioration of Nafion Membrane in Water and Isopropanol Solvents

Ji Sun Choi, Joon-Yong Sohn and Junhwa Shin
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Ji Sun Choi: Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do 580-185, Korea
Joon-Yong Sohn: Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do 580-185, Korea
Junhwa Shin: Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do 580-185, Korea

Energies, 2015, vol. 8, issue 6, 1-11

Abstract: The purpose of this study was to investigate the influence of electron beam (EB) irradiation on the structure and physical properties of Nafion 117 membranes (in both acid and sodium forms) when they are irradiated in water and isopropanol as solvents. The mechanical properties of Nafion membranes in acid form irradiated in water were found to rapidly deteriorate as the irradiation dose was increased compared to those irradiated in isopropanol. It was also found that the thermal stability of the irradiated Nafion membranes decreased with an increase in the irradiation dose, especially when the Nafion membranes were irradiated in water. It was also observed that the irradiated Nafion membranes in sodium form showed higher mechanical and thermal properties than the irradiated Nafion membranes in acid form regardless of the solvent at the same irradiation dose. The ion exchange capacity of irradiated Nafion membranes was found to be somewhat unaffected compared to the mechanical properties, regardless of the solvent used.

Keywords: EB (electron beam) radiation; irradiation; Nafion (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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