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Five types of carbon black nanofillers, namely Intermediate Super-Abrasion Furnace ISAF (N220), High-Abrasion Furnace HAF-LS (N326), Fast Extruding Furnace FEF (N550), General Purpose Furnace GPF (N660) and Semi-Reinforcing Furnace SRF-HS (N774) were incorporated with butadiene acrylonitrile rubber (NBR) in order to improve its physical properties. Young's modulus was found to increase with nanofiller content. Percolation concentration was detected in mechanical as well as in Physico-chemical behavior. The experimental values of the normalized Young's modulus fit well with Pukanszky et al. model; taking into consideration the difference in carbon black-filler type. It is noticed that the characteristic time of swelling in toluene, τ is higher for NBR loaded with 30 phr ISAF and for the rest of samples it increases with increasing of particle size. Finally oxygen ion beam irradiation for percolative loading NBR nanocomposites increases Young's modulus nearly by 2-3 times.

Influence of Ion Beam and Carbon Black Filler Type on the Mechanical and Physico-Chemical Properties of Butadiene Acrylonitrile Rubber (NBR)