Experimental studies on mechanical and morphological property of the natural and SBR/BR hybrid rubber

There is an increasing concern over the quality of incoming recycled material for the manufacturing of tyre tread compounds. Often, the recycled material is a blend of different tyre segments. The parts and segments of tyre generally contain varying composition of rubber constituents. Because of the similar
physical appearance, the source and composition of this material are somewhat complicated to be differ�entiated, hence compromising the quality of the tyre treads produced. In the manufacturing of tyre treads
especially for heavy vehicles such as buses and trucks, the recycled material of sufficient quality should
be used. They were investigated with regard to the mechanical properties and morphological studies.
Tensile modulus and hardness appreciably increased with WTR loading. Tear strength increased with
increasing GTP. The dispersion of hybrid composites in the matrix was confirmed by Scanning Electron
Microscopy. However use GTP in partial NR-SBR compounds, suitable for low potential application which
leads to significant solution of environmental contamination.