Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/88769
Título: | The influence of hydroxyapatite crystals on the viscoelastic behavior of poly(vinyl alcohol) braid systems |
Autor(es): | Quinaz, Tiago Filipe Simões Freire, Tânia F. Olmos, Andrea Alexandra Rodrigues Martins, Marcos Ferreira, Fernando Moura, Marcelo F. S. M. de Zille, Andrea QUYEN, NGUYEN-TRONG Xavier, josé Dourado, N. |
Palavras-chave: | Poly(vinyl) alcohol Hydroxyapatite Braided composites Mechanical characterization Viscoelasticity Dynamic mechanical analysis |
Data: | 2024 |
Editora: | Multidisciplinary Digital Publishing Institute (MDPI) |
Revista: | Biomimetics |
Citação: | Quinaz, T.; Freire, T.F.; Olmos, A.; Martins, M.; Ferreira, F.B.N.; de Moura, M.F.S.M.; Zille, A.; Nguyễn, Q.; Xavier, J.; Dourado, N. The Influence of Hydroxyapatite Crystals on the Viscoelastic Behavior of Poly(vinyl alcohol) Braid Systems. Biomimetics 2024, 9, 93. https://doi.org/10.3390/ biomimetics9020093 |
Resumo(s): | Composites of poly(vinyl alcohol) (PVA) in the shape of braids, in combination with crystals of hydroxyapatite (HAp), were analyzed to perceive the influence of this bioceramic on both the quasistatic and viscoelastic behavior under tensile loading. Analyses involving energy-dispersive X-ray spectroscopy (EDS) and scanning electron microscopy (SEM) allowed us to conclude that the production of a homogeneous layer of HAp on the braiding surface and the calcium/phosphate atomic ratio were comparable to those of natural bone. The maximum degradation temperature established by thermogravimetric analysis (TGA) showed a modest decrease with the addition of HAp. By adding HAp to PVA braids, an increase in the glass transition temperature (Tg) is noticed, as demonstrated by dynamic mechanical analysis (DMA) and differential thermal analysis (DTA). The PVA/HAp composite braids’ peaks were validated by Fourier transform infrared (FTIR) spectroscopy to be in good agreement with common PVA and HAp patterns. PVA/HAp braids, a solution often used in the textile industry, showed superior overall mechanical characteristics in monotonic tensile tests. Creep and relaxation testing showed that adding HAp to the eight and six-braided yarn architectures was beneficial. By exhibiting good mechanical performance and most likely increased biological qualities that accompany conventional care for bone applications in the fracture healing field, particularly multifragmentary ones, these arrangements can be applied as a fibrous fixation system. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/88769 |
DOI: | 10.3390/biomimetics9020093 |
e-ISSN: | 2313-7673 |
Versão da editora: | https://www.mdpi.com/2313-7673/9/2/93 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DET/2C2T - Artigos em revistas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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2024 Quinaz et al.pdf | 10,92 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons