Influence of gamma radiation on epdm compounds properties for use in nuclear plants
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2016
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PROCEEDINGS OF THE REGIONAL CONFERENCE GRAZ 2015 – POLYMER PROCESSING SOCIETY PPS
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Resumo
Various types of EPDM rubbers are used in radiation areas such as coating materials for wire and
electrical cables, due to their higher resistance to environmental effects when compared to other types of rubbers.
Properties set for EPDM rubbers that include degradation and good chemical resistance, besides excellent
electrical properties have been stimulating the application of this elastomer for low and medium voltage (up to 35
kV). EPDM rubber is classified as radiation-resistant, because EPDM structure includes in its principal chain
totally saturated bonds, and consequently is able to absorb more energy without cracking polymeric chain. The
purpose of this work was studying radiation influence on rubbers compounds used in wires and electrical cables
installed in Nuclear Plants. There were prepared EPDM compounds samples, further subjected to gamma radiation
at doses: 25 kGy, 50 kGy, 75 kGy, 100 kGy and 200 kGy. Mechanicals properties and swelling properties were
assessed in non-irradiated and irradiated samples at different doses. It was observed a reduction in tensile at break
values, proportional to the dose applied and pointing toward a raise in material fragility. This reduction is more
severe for doses higher than 100 kGy, indicating the predominance of chain-scission with further polymer
degradation.
Como referenciar
SCAGLIUSI, SANDRA R.; CARDOSO, ELISABETH C.L.; ZAHARESCU, TRAIAN; LUGAO, ADEMAR B. Influence of gamma radiation on epdm compounds properties for use in nuclear plants. In: HOLZER, CLEMENS H. (ed.); PAYER, MARTIN (ed.). In: PROCEEDINGS OF THE REGIONAL CONFERENCE GRAZ 2015 – POLYMER PROCESSING SOCIETY PPS, September 21-25, 2015, Graz, Austria. Proceedings... p. 080015-1 - 080015-5. (AIP Conference Proceedings, 1779). Disponível em: http://repositorio.ipen.br/handle/123456789/26981. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.