Studying on the carbon black-reinforced styrene butadiene rubber: Effect of stearamide adding on the rheological behavior.

The paper reported the effect of the adding of stearamide (strmide) on the rheological behaviour of carbon black (CB)-reinforced styrene butadiene rubber (SBR) compounds. As a base rubber, the SBR was reinforced with CB at a locked loading (thirty phr) and the strmide was incorporated into the CB-reinforced SBR with various compositions from 2 to 8 phr. The effect of strmide adding on the high torques, low torques and change in torques of the CB-reinforced SBR compounds were examined. It was detected that the strmide provided some effects in the rheological behavior of the reinforced-SBR. The additive strmide lowered the low torques but lifted the high torques and also the torques change. A greater composition of strmide provided a lesser low torques but provided a more-elevated changed torques whichever was related to the action of strmide as one additional plasticizer for the CB-reinforced SBR. Presumably, the specific waxy nature of strmide caused decreasing in low torques/viscousness but increasing in high and changed torques which were related to crosslinking state of the compound, positively. [ABSTRACT FROM AUTHOR]