Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/31990
Título: | Effect of filler content on morphology and physical-chemical characteristics of poly(vinylidene fluoride)/NaY zeolite-filled membranes |
Autor(es): | Lopes, A. C. Ribeiro, C. Sencadas, Vítor João Gomes Silva Botelho, Gabriela Lanceros-Méndez, S. |
Palavras-chave: | electrospinning poly(vinylidene fluoride) NaY zeolite tissue engineering |
Data: | Mai-2014 |
Editora: | Springer |
Revista: | Journal of Materials Science |
Citação: | Lopes, A. C., Ribeiro, C., Sencadas, V., Botelho, G., & Lanceros-Méndez, S. (2014). Effect of filler content on morphology and physical–chemical characteristics of poly (vinylidene fluoride)/NaY zeolite-filled membranes. Journal of Materials Science, 49(9), 3361-3370. |
Resumo(s): | Poly(vinylidene fluoride) electrospun membranes have been prepared with different NaY zeolite contents up to 32 wt%. Inclusion of zeolites induces an increase of average fiber size from ~200 nm in the pure polymer up to ~500 nm in the composite with 16 wt% zeolite content. For higher filler contents, a wider distribution of fibers occurs leading to a broader size distribution between the previous fiber size values. Hydrophobicity of the membranes increases from ~115º water contact angle to ~128º with the addition of the filler and is independent on filler content, indicating a wrapping of the zeolite by the polymer. The water contact angle further increases with fiber alignment up to ~137°. Electrospun membranes are formed with ~80 % of the polymer crystalline phase in the electroactive β phase, independently on the electrospinning processing conditions or filler content. Viability of MC3T3-E1 cells on the composite membranes after 72 h of cell culture indicates the suitability of the membranes for tissue engineering applications. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/31990 |
DOI: | 10.1007/s10853-014-8043-4 |
ISSN: | 0022-2461 |
Versão da editora: | http://link.springer.com/article/10.1007/s10853-014-8043-4 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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NaY_ES_F.pdf Acesso restrito! | NaY membranes | 1,28 MB | Adobe PDF | Ver/Abrir |