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Water content control to improve space charge storage in a cork derivative
Lança, M. C.; Cunha, I.; Marques, J. P.; Neagu, E.R.; Gil, Luís; Dias, C. J.; Marat-Mendes, J. N.The influence of humidity content on the electrical and dielectric properties of a composite made from recycled TetraPak® containers and granulated cork was studied. The material components have been dried before preparation and after the composite was conditioned by keeping the samples in a dry environment (desiccator) or in an oven at high temperature (70oC in air). The differences observed in electrical prop...
Electrical properties of cork and derivates
Lança, M. C.; Neagu, E.R.; Dias, C. J.; Gil, Luís; Marat-Mendes, J. N.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 a...
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