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The rheological behavior of thermoplastic elastomer compositions of butadiene-acrylonitrile rubber (NBR) and poly(vinyl chloride) (PVC) were evaluated on a Brabender torque rheometer. The power law index (shear dependence of viscosity), activation energy for viscous flow (temperature dependence of viscosity) were evaluated and found to depend upon the extent of fusion of PVC particles.
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Mathew et al. (1993) studied this question.
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