Accelerated environmental degradation of gamma irradiated polypropylene and thermal analysis
Carregando...
Data
Data de publicação
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
Journal of Thermal Analysis and Calorimetry
Exportar
Resumo
Abstract Polypropylene (PP) is one of the most important
plastic commodities in the world. It can be used in many
applications since it has outstanding properties at low cost.
However, PP has very low environmental degradation rate;
therefore, the discarded PP can accumulate in the environment.
The aim of this study is the degradation control of PP
using gamma radiation. Dumbbell samples were manufactured
by injection molding followed by irradiation using
gamma radiation at different doses: 5, 12.5 and 20 kGy. The
irradiated samples were exposed to environmental aging
during 90 days and characterized by scanning electron
microscopy, thermogravimetric analysis, differential scanning
calorimetry and X-ray diffraction. The irradiated
dumbbell samples PP 5, 12.5 and 20 kGy, exposed to environmental
aging, showed intense oxidation with the presence
of surface cracks compared with the PP non-irradiated.
Como referenciar
ROMANO, REBECA S.G.; OLIANI, WASHINGTON L.; PARRA, DUCLERC F.; LUGAO, ADEMAR B. Accelerated environmental degradation of gamma irradiated polypropylene and thermal analysis. Journal of Thermal Analysis and Calorimetry, v. 131, n. 1, p. 823-828, 2018. DOI: 10.1007/s10973-017-6653-1. Disponível em: http://repositorio.ipen.br/handle/123456789/28840. Acesso em: 31 Dec 2025.
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.