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Development of polyamide 6-graphene oxide nanocomposite and direct-joining with aluminum alloy for lightweight engineering applications

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Autor(es):
Luiz, G. M. ; Oliveira, G. H. M. ; Canto, L. B.
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: POLYMER ENGINEERING AND SCIENCE; v. 64, n. 2, p. 12-pg., 2023-11-28.
Resumo

Lightweight polyamide composites and structures have been widely studied and employed in several industrial sectors. In this study, the development of a nanocomposite of polyamide 6 and graphene oxide (PA6-GO) by melt-compounding and the joining with aluminum alloy AA6061 through direct-adhesion injection overmolding are addressed. PA6-GO nanocomposite exhibited well-dispersed thin (300 nm) GO platelets distributed within the PA6 matrix, which resulted in an increase of 21% in the tensile modulus and 16% in the yield stress for a filler loading of 0.5 wt%. PA6-GO/AA6061 hybrid joints showed good mechanical anchorage through the complete filling of the polymer into micro-scale grooves designed onto the metal surface, which ensured outstanding shear strength of 7.1 +/- 1.0 MPa, comparable to other polyamide-metal hybrid joints reported in the literature. This indicates that the processing routes and materials developed are promising for lightweight engineering applications.HighlightsA PA6-GO nanocomposite with enhanced tensile properties was developed.A joint of PA6-GO and AA6061 with outstanding shear strength was obtained.Fast and efficient melt-processing routes were employed.These materials are promising for lightweight engineering applications. Development of polyamide 6-graphene oxide nanocomposite and direct-joining with aluminum alloy.image (AU)

Processo FAPESP: 18/24296-0 - Moldagem por injeção de juntas híbridas polímero-metal
Beneficiário:Leonardo Bresciani Canto
Modalidade de apoio: Auxílio à Pesquisa - Regular