Physicochemical properties and stress-strain compression behaviors of a ground tire rubber based magnetorheological elastomers

This study reports a reclamation method of Ground Tire Rubber (GTR) and electronic wastes into a tunable stiness composite, namely magnetorheological elastomers (MREs). The composite matrix was the GTR that had been separated from its metals and yarns. Meanwhile, the llers were fabricated from magnetic cores of the Cathode Ray Tubes (CRTs) monitor waste through high energy ball milling in wet condition. Some physicochemical characterizations of the powders were initially conducted to collect the physical and chemical properties. Based on the examination, the ground powders were identied as pure magnetite (Fe3O4) having low remnant and high magnetization. The MREs samples were prepared by high-temperature high-pressure sintering. The mixed of crumb rubber and magnetite powder was vulcanized under simultaneous pressure and temperature in the absence of magnetic elds, which resulted in an isotropic MREs type. The abilities of specimens were examined in relation to the external magnetic eld through static and dynamic compression tests. The experimental investigation showed that the static and dynamic stresses of the stiness increased by the increment of magnetic elds up to a particular point of ux density. The tunability of the stiness indicated that the elastomers could provide wide ranges of storage and loss modulus.