고선량 감마선 조사에 의한 이온교환수지 특성 변화2. 음이온교환수지 화학적 및 열적 특성 변화
Chemical and Thermal Characteristics of Anion Exchange Resin after Gamma Irradiation
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The anion exchange resin widely used in nuclear power plants was irradiated by gamma rayand the chemical and thermal characteristics were investigated. Gamma irradiation of resin resultedpartly in oxidation and degradation of PS-DVB backbone and functional group. Carbon content increasedwith dose, while oxygen content decreased because of crosslinking of resin. But decrease of nitrogencontent resulted from cleavage of C-N bond. Thermal degradation onset temperature of functionalgroup and PS-DVB increased with dose. In addition, the amount of residue was increased by gammairradiation. This show that gamma induced crosslinking of PS-DVB determined in chemical and thermalcharacteristics of anion exchange resin.
Abstract
The anion exchange resin widely used in nuclear power plants was irradiated by gamma rayand the chemical and thermal characteristics were investigated. Gamma irradiation of resin resultedpartly in oxidation and degradation of PS-DVB backbone and functional group. Carbon content increasedwith dose, while oxygen content decreased because of crosslinking of resin. But decrease of nitrogencontent resulted from cleavage of C-N bond. Thermal degradation onset temperature of functionalgroup and PS-DVB increased with dose. In addition, the amount of residue was increased by gammairradiation. This show that gamma induced crosslinking of PS-DVB determined in chemical and thermalcharacteristics of anion exchange resin.
참고문헌 (10)
- Nash KL, "Significance of the nuclear fuel cycle in the 21st century", ACS Symp, 933, pp.167~173 (2006)
- Release of radionuclides and chelating agents from full-system decontamination ion-exchange resins, "Nuclear Regulatory Commission", U.S. NRC, Office of Nuclear Regulatory Research, ~, pp.NUREG (2002), CR-6766
- Kao DY, "Study on leachable behavior of cation exchange resin", J. Nucl. Sci. Technol, 53, pp.921~927 (2016)
- Stahlbush JR, "A decomposition mechanism for cationn exchange resins", React. Polym, 13, pp.233~240 (1990)
- Devi PR, "Effect of gamma irradiation on the ion exchange capacity of polyaniline", Radiat. Phys. Chem, 96, pp.75~80 (2014)
- Juang RS, "Oxidative pyrolysis of organic ion exchange resin in the presence of metal oxide catalysts", J. Hazard. Mater, B92, pp.301~314 (2002)
- Wang P, "Study the radiation effects on 4-vinylpyridine-based porous resins in 99Tc adsorption", J. Radioanal. Nucl. Chem, 311, pp.301~306 (2017)
- Panov AV, "Influence of protective activity on 137cs accumulation by farming plants from soil after chernobyl accident", Pedology J, 4, pp.484~497 (2009)
- Park Y, "Removal of cobalt, strontium and cesium from radioactive laundry wastewater by ammonium molybdophosphate-polyacrylonitrile (AMP-PAN)", Chem. Eng. J, 162, pp.685~695 (2010)
- Rhee IH, "Binary and Tertiary Cation Exchanges: The effect of electrolyte anions on selectivity and adsorption capacity", J. Kor. Sci. Env. Eng, 4, pp.195~206 (1999)