Abstract
Recycled Styrene-Butadiene Rubber (SBR) from ground tire rubber (GTR) was sieved into four granulometric fractions between 125 and 500 microns to determine the effect of particle size on its thermo-mechano-chemical regeneration in an internal batch mixer. Different temperatures (140-180°C) and rotor speeds (40-120 rpm) were imposed with and without the addition of a regeneration aid (aromatic oil). The results show that partial regeneration (lower crosslinking degree) is possible under specific thermo-mechanical conditions, but the addition of the aromatic oil has limited efficiency towards this regeneration.
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