ABSTRACT
Former investigations (Reincke 2015) of a carbon-black filled Styrene–Butadiene and a Natural Rubber vulcanizate (SBR and NR) showed clear differences in the degradation behaviour of the used antioxidant during an artificial weathering. Now, in a further study, the behaviour during a thermo-oxidative aging was investigated for carbon-black filled NR vulcanizates with three different antioxidants. The duration of the thermo-oxidative aging at different temperatures was realized up to 1500 h. To characterize the material properties in dependence on the aging time and temperature as well as type of antioxidant, different methods of mechanical testing were applied. Focus was on the characterization of the viscoelastic material behaviour by using dynamic mechanical analysis. Here, the influence of aging and type of antioxidant on the Payne effect was studied.
