Rheological Characteristics of Short Nylon-6 Fiber Reinforced Styrene Butadiene Rubber Containing Epoxy Resin as Bonding Agent

The rheological characteristics of short Nylon-6 fiber-reinforced Styrene\nButadiene rubber (SBR) in the presence of epoxy resin-based bonding agent were\nstudied with respect to the effect of shear rate, fiber concentration , and temperature\non shear viscosity and die swell using a capillary rheonzeter. All the composites\ncontaining bonding agent showed a pseudoplastic nature, which decreased\nwith increasing temperature. Shear viscosity was increased in the presence of\nfibers. The temperature sensitivity of the SBR matrices was reduced on introduction\nof fibers. The temperature sensitivity of the melts was found to be lower at\nhigher shear rates. Die swell was reduced in the presence of fibers. Relative viscosity\nof the composites increased with shear rate. In the presence of epoxy resin\nbonding agent the temperature sensitivity of the mixes increased. Die swell was\nlarger in the presence of bonding agent.