Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/81678
Título: | Beeswax multifunctional composites with thermal-healing capability and recyclability |
Autor(es): | Brito-Pereira, Ricardo Ribeiro, Clarisse Marta Oliveira Tubio, Carmen R. Castro, Nelson Costa, Pedro Lanceros-Méndez, S. |
Palavras-chave: | Natural beeswax Graphene Biocompatible composites Functional composite Thermal-healing material |
Data: | 1-Fev-2023 |
Editora: | Elsevier 1 |
Revista: | Chemical Engineering Journal |
Resumo(s): | Natural beeswax reinforced with conductive nanofillers allows solvent-free processing and presents remarkable functional response as piezoresistive and thermoresistive sensors with thermal healing capability. The low melting temperature of the composites, around 60 °C, allows additive manufacturing of conductive patterns with a high electrical conductivity of 50 S/m. Further, the graphene/beeswax composites show suitable deformation and temperature sensing characteristics based on the piezoresistive and thermoresistive sensitivities, around GF≈9 and S≈ 120 %/°C, respectively. Natural beeswax is a food and drug administration approved substance, and all graphene/beeswax composites present no cytotoxic behavior, demonstrating their potential use for biomedical applications. Proofs-of-concept demonstrate the conductive and thermal-healing properties of the screen-printed sensors developed both on paper and Kapton substrates, proving the applicability and multifunctionality of the developed materials. Finally, the multifunctional composites can be recycled and reused without losing their electrical and functional performances. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/81678 |
DOI: | 10.1016/j.cej.2022.139840 |
ISSN: | 1385-8947 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
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Este trabalho está licenciado sob uma Licença Creative Commons