This result indicated that EPDM or R-EPDM
had negative impact on the processability of the blends. At
a similar blend ratio (particularly at high weight ratios of
EPDM or R-EPDM), NR/R-EPDM blends showed higher S0
ML
values than those of NR/EPDM blends. As the blends consisted
of carbon black from R-EPDM itself (29.33% of carbon
black) and formulated carbon black