Rheological properties of NBR/CR blends as a function of silicon dioxide grain size gradation

摘要

This study focuses on the extent to which the rheological properties of acrylonitrile butadiene Abber (NBR)/chloroprene rubber (CR) blends are affected by the variation of silicon dioxide grain size. Silicon dioxide (SiO2) as a nanopowder filler has been added with 50 wt. and different grain size particles (0-150 nm), and studied the effect of these additives on viscosity, scorch time, cure me and max torque for NBR/CR blends. The results obtained from the rheological tests showed that viscosity and max torque increased with increasing of silicon dioxide grain size, while the result was inverse with scorch and cure time, where the larger grain size of silicon dioxide will lead to reduce both the scorch- and the cure time.