Fig. 8a–f. It was observed that the incorporation of minimum amount (3 wt%) of EG and i-MG with CB (30wt%) into the different rubber matrices, the tensile strength, modulus and tear strength of the composites were increased compared to the only CB (40wt%) loaded rubber composites. It was evident that the tensile strength of the BEC (BR/EG/CB), SEC (SBR/EG/CB), SBEC (SBR/BR/EG/CB), Bi–MC (BR/i-MG/CB), Si–MC (SBR/i-MG/CB) and SBi–MC (SBR/BR/