COMPOSITIONAL INVESTIGATION OF THE SOLID-STATE RHEOLOGICAL BEHAVIOR OF DYNAMICALLY VULCANIZED EPDM/I-PP ELASTOMERS

摘要

This study investigates mechanical behavior and reversibility of dynamically vulcanized EPDM / i-PP blends. The composition of these elastomers dictates their morphology, which in turn controls their mechanical behavior. Six compositions are examined under dynamic loading. Dynamic mechanical responses are examined in terms of the Payne effect as a function of composition, cure state, and i-PP molecular weight. The Kraus model is applied and the resulting parameters are explained as a function of morphology.