ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
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 storeelectrical charge. The main problem found so far is related to the water content in cork, only of afew % weight, but large enough to influence greatly the conductivity of cork and, consequently, thecharge storage capability. To overcome this problem cork has been combined with hydrophobicmaterials. In this work a commercial wax (paraffin wax) was used to produce a cork/paraffincomposite by hot pressing. After milled and mixed natural cork, TetraPak® containers waste andparaffin 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 toproduce the samples. The electrical properties of the new composite were measured by theisothermal charging and discharging current method and the results compared to previously onesobtained for natural cork and other derivative products. The new composite has shown to havelower conductivity than the commercial agglomerate, which makes it a better material for chargestorage
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/19/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.587-588.613.pdf
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