고선량 감마선 조사에 의한 이온교환수지 특성 변화1. 양이온교환수지 화학적 및 열적 특성 변화
Chemical and Thermal Characteristics of Cation Exchange Resin after Gamma Irradiation
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Chemical and thermal characteristics of cation exchange resin after gamma irradiation wereinvestigated. Degradation of cation exchange resin predominantly occurred up to a dose of 500 kGy, whilethe balance of degradation and crossfiring reaction was maintained at a dose of 700 kGy. Carbon contentdecreased with gamma irradiation up to a dose of 500 kGy, but increased above dose. The change ofoxygen content was oppositely observed to that of carbon. Surfer content consistently decreased becauseof degradation of sulfone group. Unlike chemical characteristics of gamma irradiated resin, degradationonset temperature of sulfone group and PS-DVB decreased with gamma irradiation. The amount ofdegradation residue of cation exchange resin resulted from gamma induced chemical characteristics ofresin, not thermal characteristics.
Abstract
Chemical and thermal characteristics of cation exchange resin after gamma irradiation wereinvestigated. Degradation of cation exchange resin predominantly occurred up to a dose of 500 kGy, whilethe balance of degradation and crossfiring reaction was maintained at a dose of 700 kGy. Carbon contentdecreased with gamma irradiation up to a dose of 500 kGy, but increased above dose. The change ofoxygen content was oppositely observed to that of carbon. Surfer content consistently decreased becauseof degradation of sulfone group. Unlike chemical characteristics of gamma irradiated resin, degradationonset temperature of sulfone group and PS-DVB decreased with gamma irradiation. The amount ofdegradation residue of cation exchange resin resulted from gamma induced chemical characteristics ofresin, not thermal characteristics.
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