Strain Dependent Dynamic Mechanical Properties of Carbon Black and Clay Filled Epoxidised Natural Rubber Vulcanizates

Abstract

Dynamic mechanical properties of carbon black and clay filled epoxidised natural rubber have been studied over a wide range of temperature and varying dynamic strain conditions. Low temperature studies indicated the absence of an adsorbed layer of elastomer around the clay particles for the various loadings studied. Low strain properties under room temperature condi tions were found to be dependent on the transient aggregate structure existing in the case of carbon black filled vulcanizates whereas for clay, except the hydrodynamic effect, no other profound effect could be observed under the low loading conditions studied. From the physical property studies also it may be concluded that there is no profound reinforcing mechanism operating in the case of clay and ENR.