Effect of a Polydimethylsiloxane and Polyisobutylene Succinic anhydride on the mechanical and dynamic Properties of Silica filled SBR Compounds

The effect of addition of hydroxyl terminated polydimethylsiloxane (PDMS-OH) and polyisobutylene succinic anhydride (PIBSA) on the dispersion of silica in E-SBR (emulsion polymerised SBR) is investigated. E-SBR / silica compounds with hydroxyl terminated polydimethylsiloxane (PDMS-OH) and poly -isobutylene succinic anhydride were prepared and characterized for static, dynamic and morphological properties. Addition of PDMS-OH and PIBSA in silica filled SBR compounds exhibit improved silica filler dispersion, reduced Payne effect, and improved tan S properties which can lead to an increase in fuel efficiency of the vehicle without compromise on wet grip property.