Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/1384
Título: Electrical properties of cork and derivates
Autor: Lança, M. C.
Neagu, E.R.
Dias, C. J.
Gil, Luís
Marat-Mendes, J. N.
Palavras-chave: Cork
Electrical properties
Recycling
Data: 2011
Citação: Lança, M. C.; Neagu, E. R.; Dias, C. K.; Gil, L.; Marat-Mendes, J. N. Electrical properties of cork and derivates. In: Ciência e Tecnologia dos Materiais, 2011, vol. 23, nº 3-4, p. 64-70
Resumo: The electrical properties of natural cork, commercial cork agglomerates (for floor and wall covering) and a composite of cork/TetraPak® were studied. The composite was developed at LNEG/Portugal and is made of recycled cork and TetraPak® containers. Measurements of isothermal charge and discharge currents (ICC/IDC) and dielectric relaxation spectroscopy (DRS) were made. The isothermal currents characteristics and the samples electrical conductivity were investigated under different conditions (electric field, temperature and measuring atmosphere). Dielectric relaxation spectroscopy was used to quantify the changes in the permittivity with the samples conditioning. Both experimental techniques showed the strong influence of water content on the electrical properties of cork and its derivatives.
URI: http://hdl.handle.net/10400.9/1384
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