Mechanical and Aging Properties of Ultra-High Acn HNBR Elastomers

THERBAN (HNBR) is prepared by the selective hydrogenation of acrylonitrile-butadiene rubber (nitrile rubber; NBR), and is classified as a high performance specialty elastomer with excellent resistance to heat, ozone, aggressive fluids and oils. HNBR also displays excellent tear, abrasion, dynamic, and sealing properties at elevated service temperatures. Given its exceptional performance qualities, its compounds can be used in the automobile industry (e.g. timing belts, hoses, seals and gaskets), in the oil industry (e.g. stator pumps, packing seals and blowout preventors) as well in other industries for applications such as specialty cable coverings and laminated rollers. This paper will present the properties of ultra-high acrylonitrile HNBR polymers and the mechanical and aging characteristics of its vulcanizates in peroxide and sulfur cure systems.