Investigation of binary systems of acrylonitrile-butadiene copolymers and stearic acid,zinc stearate or calcium stearate-a contribution to understanding the behavior of NBR mixtures in injection molding

摘要

The combination of high--ressure capillary rheometry (HCR) and the rubber process analyzer (RPA) allows investigations of rubber mixtures in the broad rangeof shear rates from 0.01 sec~(-1) to 10,000 sec~(-1).Acrylonitrile-butadiene copolymers of different acrylonitrile contents and different Mooney viscosities were combined with stearic acid,zinc stearate or calcium stearate and investigated using these methods under flow conditions.The data were evaluated using the Carreau equation.