Abstract
In continuation of earlier studies the flow behaviour of mixtures of rubber (SBR, EPDM) and crumb from scrap tyre treads was estimated at 120°C with the aid of a high-pressure capillary rheometer. The influence of the capillary dimension on the flow curves was studied. With narrow and short capillaries the flow behaviour proved to be independent of the filler concentration. At low shear rates a discrimination of the flow characteristics according to the filler loading was observed only with capillaries above a certain width and length. At high shear rates with such a capillary an inversion of the rating of the flow curves was found.
Published Version
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