SEM photographs of the tensile fractured surface of NR–PBR, NR–PBR/RR (80/20), NR–PBR/RR (60/40) and NR–PBR/RR (40/60) (Fig. 3a–d) are taken to study the phase morphological structure and homogeneity of the vulcanizate
SEM photographs of the tensile fractured surface of NR–PBR,NR–PBR/RR (80/20), NR–PBR/RR (60/40) and NR–PBR/RR (40/60)(Fig. 3a–d) are taken to study the phase morphological structureand homogeneity of the vulcanizate