Abstract
Carbon black (CB)-Halloysite nanotubes(HNT) hybrid composites based on Acrylonitrile Butadiene rubber(NBR) were prepared. The Carbon black loading was kept fixed at 60 phr and Halloysite nanotube loading was varied from 0 to 10 parts per hundred rubber(phr). The nanocomposites were prepared by mixing using a two-roll open mill. The effect of CB-HNT hybrid fillers on the curing behaviour, mechanical properties and morphology of the NBR nanocomposites was investigated. The cure characteristics showed that the scorch time(ts2) and cure time (t 90) increased with the HNT loading. The maximum torque(MH) exhibited an increasing trend from 0 to 6 phr . The tensile properties which exhibited an increasing trend until an optimum loading of 6phr were mainly influenced by the NBR-CB-HNT interaction and the intercalation of rubber and CB into the tubules. These results were well supported by the XRD studies and cross link density determinations.
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