|Title||Characterization of recycled end-of-life rubber tire filled with black slag|
|Publication Type||Articolo su Rivista peer-reviewed|
|Year of Publication||2023|
|Authors||Gobetti, A., Cornacchia G., Petrogalli C., Kerschbaumer R.C., La Monica Marco, and Ramorino G.|
|Journal||Journal of Reinforced Plastics and Composites|
|Keywords||Aggregates, Alternative filler for rubber, Differential scanning calorimetry, Electric arc furnace slag reuse, Electric arc furnace slags, Electric arcs, Electric furnace process, Electric furnaces, End of lives, Filled polymers, Filler for rubber, Fillers, Friction, Recycled end-of-life tire, Recycled rubber, Recycled rubber characterization, Recycling, Reuse, Rubber thermal conductivity, Slags, Thermal conductivity, Tires, Waste reduction|
To date, discarded tires are reused in many applications, however, because of the enormous quantity decommissioned annually, it is essential to continue researching new recycling methods as well as applications to reduce waste and preserve new resources. In the present study, a simple recycling technology of end-of-life tire (ELT) powder is proposed, and the influence of steel slag as filler is assessed. Europe produces about 7 Mt of steel slag annually, and although most of it is reused as an artificial aggregate, about 15% is still landfilled. Also in the case of steel slag, the study of new applications is mandatory so that the combination of these two waste materials, in a 100% recycled composite fits across different industrial sectors facing the same environmental issue. It was found that the leaching of the slag incorporated in the rubber matrix is reduced and that the ELT powder recycled by this technology gives rise to a well-cohesive material. A good rubber-filler interaction was found by swelling test and differential scanning calorimetry (DSC) analysis. The slag reduces the friction coefficient and increases the thermal conductivity. The experimental results showed how some properties of recycled ELT can be improved by adding the steel slag. © The Author(s) 2023.
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