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https://hdl.handle.net/1822/78327
Título: | Influence of processing parameters on the polymer phase, microstructure and macroscopic properties of poly(vinilidene fluoride)/Pb(Zr0.53Ti0.47)O-3 composites |
Autor(es): | Costa, Carlos Miguel Silva Firmino Mendes, S. Sencadas, Vítor João Gomes Silva Ferreira, Armando José Barros Gregorio, R., Jr. Gomez Ribelles, J. L. Lanceros-Méndez, S. |
Palavras-chave: | Polymer composites PVDF Dielectric properties Mechanical properties |
Data: | Set-2010 |
Editora: | Elsevier Science BV |
Revista: | Journal of Non-Crystalline Solids |
Citação: | Costa, C. M., Firmino Mendes, S., Sencadas, V., Ferreira, A., Gregorio, R., Jr., Gómez Ribelles, J. L., & Lanceros-Méndez, S. (2010, September). Influence of processing parameters on the polymer phase, microstructure and macroscopic properties of poly(vinilidene fluoride)/Pb(Zr0.53Ti0.47)O3 composites. Journal of Non-Crystalline Solids. Elsevier BV. http://doi.org/10.1016/j.jnoncrysol.2010.07.037 |
Resumo(s): | In this work, poly(vinilidene fluoride)/Pb(Zr0.53Ti0.47)O-3,([PVDF](1-x)/[PZT](x)) composites of ceramic volume fractions x and (0-3) type connectivity were prepared in the form of thin films. PZT powders with average grain size of 0.84, 1.86 and 2.35 mu m in different volume fraction of PZT (10, 20, 30 and 40%) were mixed with the polymer matrix. The PVDF crystalline phase was the nonpolar alpha-phase and the polar beta-phase. Dielectric measurements were performed and the study revealed that the dielectric constant of the materials strongly increases with increasing PZT particle content. The quasi-static and dynamic mechanical properties of the composites are also strongly dependent on the PZT volume fraction. The grain size of the ceramic particles and the PVDF crystalline phase do not affect significantly neither dielectric nor the mechanical response. Scanning electron microscopy, Fourier transformed infrared spectroscopy and differential scanning calorimetry measurements were performed in order to study the distribution of particles within the polymer matrix, the influence of these particles at a molecular level and the variations induced in the melting transition and in the degree of crystallinity of the composites. respectively. (C) 2010 Elsevier B.V. All rights reserved. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/78327 |
DOI: | 10.1016/j.jnoncrysol.2010.07.037 |
ISSN: | 0022-3093 |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S002230931000445X |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - FAMO - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1-s2.0-S002230931000445X-main.pdf Acesso restrito! | 1,44 MB | Adobe PDF | Ver/Abrir |