HNBR, AN ELASTOMER FOR BELTS - PROPERTIES OF DYNAMICALLY STRESSED VULCANIZATES

Hydrogenated Nitrile Rubber (HNBR) is a special elastomer with an unus ual property combination; it is grown into a standard material, partic ularly for synchronous belts for the cramshaft control in the automoti ve industry besides CR. This report shows the compromising ability of HNBR for dynamic/mechanical properties, its resistance against thermo- oxidative aging, cost effectiveness and aspects of safety, maintenance and ecology. Typical vulcanizates (S- and peroxide cure) for belts ar e presented and compared in their processing. elongation, crack and he at resistance; where applicable, CR is included.