In this paper the results of space charge and conduction current measurements performed at different temperatures and electric fields on nanocomposites based on ethylene-vinyl-acetate are reported. The nanofillers are spherical TiO2 nanoparticles with a size ranging from 5 nm to 40 nm. The results show that the size of nanoparticles influences significantly electric properties of the final nanocomposite. The specimens containing the smallest nanoparticles, in fact, present better electric properties as a function of electric field and temperature. In particular, smaller space charge accumulation, lower conductivity and lower activation energy of the conduction process are detected with respect to both base material and nanocomposite with bigger nanoparticles.
Effect of nanoparticle size on space charge behavior of EVA-TiO2 nanocomposites / D. Fabiani; G. C. Montanari; F. Palmieri. - STAMPA. - 1:(2011), pp. 6232661.322-6232661.325. (Intervento presentato al convegno IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) tenutosi a Cancun, Mexico nel October 2011) [10.1109/CEIDP.2011.6232661].
Effect of nanoparticle size on space charge behavior of EVA-TiO2 nanocomposites
FABIANI, DAVIDE;MONTANARI, GIAN CARLO;
2011
Abstract
In this paper the results of space charge and conduction current measurements performed at different temperatures and electric fields on nanocomposites based on ethylene-vinyl-acetate are reported. The nanofillers are spherical TiO2 nanoparticles with a size ranging from 5 nm to 40 nm. The results show that the size of nanoparticles influences significantly electric properties of the final nanocomposite. The specimens containing the smallest nanoparticles, in fact, present better electric properties as a function of electric field and temperature. In particular, smaller space charge accumulation, lower conductivity and lower activation energy of the conduction process are detected with respect to both base material and nanocomposite with bigger nanoparticles.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
