Abstract
In recent years, interest in used rubber recycling, mainly focusing on the utilization of end-of-life tires, has heightened. This interest, is owing to the activities related to environmental protection and economic factors, which both stimulate companies to reuse the high-quality rubber present in ground rubber scrap. In this study, the application of crosslinked butyl rubber in thermoplastic compositions of low-density polyethylene and ground tire rubber (GTR) is presented. The static and dynamic mechanical properties and morphology of obtained products were studied. The addition of crosslinked butyl rubber to the investigated blends increased the compatibility between the low-density polyethylene and the GTR particles. It was found that the mechanical properties of thermoplastic compositions containing higher amounts of elastomers (i.e., GTR and crosslinked butyl elastomer) displayed the same behavior, whereas the samples with GTR had worse respective parameters. Depending on their composition, the obtained new polymer blends can be applied to automotive parts, be adapted to pavement surfaces, and become parts of antivibration systems.
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