Photo-oxidation of modified Polypropylene nanocomposite
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2016
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BRAZILIAN MRS MEETING, 15th
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Resumo
All polymers when exposed to the environment suffer diverses alterations due to
the action of diverse factors such UV light, poluition, acid rain and others. In this
study, the modified polypropylene by gamma irradiation (HMSPP – high melt
strength polypropylene) was blended with Cloisite 20A to obtain HMSPP
nanocomposite. The PP-g-MA, polypropylene graft maleic anhydride, was utilized
as compatibilizant agent [1]. The samples were processed in twin-screw extruder
and the dumbbell samples were obtained by thermopressing. The samples was
exposed in environment by 6 months [1,2]. The chemical analysis was evaluate by
Carbonyl Index (CI) and Melt Flow Index (MFI). With increase of time, the CI also
increased, indicating the chain scission process, principally in the chain
backbone, as observed in MFI, which value has increased very fast with
increasing of time.
Como referenciar
KOMATSU, LUIZ G.H.; OLIANI, WASHINGTON L.; LUGAO, ADEMAR B.; PARRA, DUCLERC F. Photo-oxidation of modified Polypropylene nanocomposite. In: BRAZILIAN MRS MEETING, 15th, September 25-29, 2016, Campinas, SP. Abstract... p. 708-708. Disponível em: http://repositorio.ipen.br/handle/123456789/27547. Acesso em: 30 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.