https://doi.org/10.1140/epjp/s13360-023-04769-6
Regular Article
Influence of quasicrystalline fillers on the microstructural, thermal, and band gap properties of polyamide 6-based coatings with pure Al–Cu–Fe and recycled Al–Cu–Fe quasicrystals
1
Programa de Pós-Graduação em Engenharia de Mecânica (PPGEM), Universidade Federal da Paraíba (UFPB), Cidade Universitária, CEP 58051-900, s/n-João Pessoa, PB, Brazil
2
Programa de Pós-Graduação em Ciência e Engenharia de Materiais (PPGCEM), Universidade Federal da Paraíba (UFPB), Cidade Universitária, CEP 58051-900, s/n-João Pessoa, PB, Brazil
Received:
4
July
2023
Accepted:
4
December
2023
Published online:
18
December
2023
Composite coatings of polyamide 6 (PA6) and pure quasicrystals (Al–Cu–Fe) and recycled quasicrystals (AlRec.–Cu–Fe) were developed using a solution polymer method, and the influence of these fillers on the microstructural, morphological, and electrical characteristics of the composites was analyzed. The composite coatings were produced via spin coating with a volumetric fraction of 0–11% of quasicrystalline fillers. Changes in the sample morphology were observed, inhibiting the crystalline γ form of polyamide 6 and reducing the degree of crystallinity from 35 to 10%, with a variation of 
1, with the addition of recycled quasicrystals (AlRec.–Cu–Fe). Furthermore, the AlRec.–Cu–Fe-based composite coatings exhibited band gap values (Eg) of approximately 1–1.3 eV, which falls within the semiconductor Eg range. The composites with AlRec.–Cu–Fe displayed electrical resistance ranging from 0.01 to 0.07 Ω, which is lower than the pure Al–Cu–Fe quasicrystal samples. Additionally, the electrical conductivity ranged from 1926.8 to 550.5 (Ω m)−1.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjp/s13360-023-04769-6.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
