EFFECT OF (3-AMINOPROPYL) TRIETHOXYSILANE ON CHEMORHEOLOGICAL BEHAVIOR OF CARBOXYLATED NITRILE RUBBER IN PRESENCE OF SURFACE OXIDIZED ISAF CARBON-BLACK

Carboxylated nitrile rubber and ISAF carbon black chemically interacte d when the mix of the two was extruded at high temperature (180 degree s C) in a Monsanto Processibility Tester. Studies on the physical prop erties of the extrudates and the reaction kinetics of the extrusion pr ocess showed that the extent of interaction increased with increase in filler loading, oxygen-containing functional groups on the filler sur face, shear rate, extrusion time, and the loading of (3-aminopropyl) t riethoxysilane. (C) 1997 John Wiley & Sons, Inc.