Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/38727
Título: | Nonsolvent induced phase separation preparation of poly(vinylidene fluoride-co-chlorotrifluoroethylene) membranes with tailored morphology, piezoelectric phase content and mechanical properties |
Autor(es): | Cardoso, Vanessa Fernandes Botelho, Gabriela Lanceros-Méndez, S. |
Palavras-chave: | Poly(vinylidene fluoride-chlorotrifluoroethylene) P(VDF-CTFE) Nonsolvent induced phase separation - NIPS Tailored microstructure Crystalline phases Mechanical properties Poly(vinylidene fluoride-chlorotrifluoroethylene) - P(VDF-CITE) Nonsolvent induced phase separation - NIPS Poly(vinylidene fluoride-chlorotrifluoroethylene) - P(VDF-CTFE) |
Data: | 2015 |
Editora: | Elsevier |
Revista: | Materials and Design |
Citação: | Cardoso V. F., G. Botelho, S. Lanceros-Méndez, Nonsolvent induced phase separation preparation of poly(vinylidene fluoride-co-chlorotrifluoroethylene) membranes with tailored morphology, piezoelectric phase content and mechanical properties, Materials & Design, Volume 88, 25 December 2015, Pages 390-397, ISSN 0264-1275, http://dx.doi.org/10.1016/j.matdes.2015.09.018. |
Resumo(s): | Poly(vinylidene fluoride-co-chlorotrifluoroethylene) – P(VDF-CTFE) membranes are increasingly interesting for a wide range of applications, including battery separators, filtration membranes and biomedical applications. This work reports on the morphology, hydrophobicity, thermal and mechanical properties variation of P(VDF-CTFE) membranes processed by nonsolvent induced phase separation technique (NIPS) as a function of the main processing parameters. All membranes show a porous structure composed of large spherulites, (interconnected) micropores and/or microvoids depending on the processing conditions used that in turn affect their hydrophobicity and mechanical properties. The degree of crystallinity of the membranes remains approximately constant with a value of about 15 %, except for the membranes immediately immersed in ethanol, which is of about 23 %. In turn, the crystalline phases present in the copolymer is mainly affected by the temperature and nonsolvent characteristics of the coagulation bath, the β-phase content ranging from 33 to 100 %, depending on those processing parameters. It was show that the temperature of water-based coagulation bath plays an important role in order to produce structurally uniform and homogeneous porous membranes, which is particularly important from the point of view of technological applications. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/38727 |
DOI: | 10.1016/j.matdes.2015.09.018 |
ISSN: | 0264-1275 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) CDQuim - Artigos (Papers) DEI - Artigos em revistas internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Cardoso_2015.pdf Acesso restrito! | 1,8 MB | Adobe PDF | Ver/Abrir |