Reinforcing properties of a modified carbon black in NR and in an NR-NBR blend

Carbon black was modified with a long chain unsaturated hydroxy organic aci d in presence of dicumyl peroxide and used as a reinforcing filler in NR an d NR/BR blend in order to put the acid moiety as a flexible bridge between carbon black particles and the polymer chain for improving processing and v ulcanizate properties. Processing behavior and vulcanizate properties were evaluated. The modified carbon black showed improved physical properties al ong with other optimum vulcanizate properties compared to the control unmod ified carbon black.