Aplicaciones dieléctricas del poliestireno (PS) cargado con neumáticos fuera de uso (GTR)

Abstract

Mass production of tires and their subsequent storage after use is a serious environmental problem that is tried to be solved in various ways. One of these is the mixture of these old used tires (GTR) with various thermoplastic and thermostable polymers. The present work aims to obtain materials suitable for the electric industry from the mixture of Polystyrene (PS) with old used tires (GTR), starting from the requirement of minimum recycling costs, i.e. by using vulcanised GTR without any prior treatment, but acting on the particles sizes with a simple and inexpensive screening. In order to do so, dielectric, mechanical, thermal and microstructure analyses were performed for a large number of compounds, which were obtained using three GTR particle sizes p<200μm, 200<p<500μm and p>500μm, and seven concentrations of GTR in the compound (0%, 5%, 10%, 20%, 40%, 50% and 70%). All these data have allowed an accurate characterization of the properties of the new compounds and, according to these results, possible electrical applications have been explored.