Paper Title:
Electrical Properties Studies of a Cork/TetraPak®/Paraffin Wax Composite
  Abstract

Lately the electrical and dielectric properties of cork and some cork-based materials (commercial and non-commercial) have been studied in order to understand their ability to store electrical charge. The main problem found so far is related to the water content in cork, only of a few % weight, but large enough to influence greatly the conductivity of cork and, consequently, the charge storage capability. To overcome this problem cork has been combined with hydrophobic materials. In this work a commercial wax (paraffin wax) was used to produce a cork/paraffin composite by hot pressing. After milled and mixed natural cork, TetraPak® containers waste and paraffin were pressed to make plaques of a new composite. Different concentrations of cork, TetraPak® and paraffin, different granules size, different temperature and pressure were used to produce the samples. The electrical properties of the new composite were measured by the isothermal charging and discharging current method and the results compared to previously ones obtained for natural cork and other derivative products. The new composite has shown to have lower conductivity than the commercial agglomerate, which makes it a better material for charge storage.

  Info
Periodical
Materials Science Forum (Volumes 587-588)
Edited by
António Torres Marques, António Fernando Silva, António Paulo Monteiro Baptista, Carlos Sá, Fernando Jorge Lino Alves, Luís Filipe Malheiros and Manuel Vieira
Pages
613-617
DOI
10.4028/www.scientific.net/MSF.587-588.613
Citation
M. Carmo Lança, S. Peuckert, E. R. Neagu, L. Gil, P. C. Silva, J. N. Marat-Mendes, "Electrical Properties Studies of a Cork/TetraPak®/Paraffin Wax Composite", Materials Science Forum, Vols. 587-588, pp. 613-617, 2008
Online since
June 2008
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$32.00
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