Abstract
Abstract The extent of dispersion and torque requirements vary with processing time during the compounding of filled polymers in batch mixers. Starting with a model for the erosion of single agglomerates under simple shear flow conditions, equations have been developed that enable correlation and prediction of the evolution of both dispersion quality and mixing torque during the course of processing. There was an excellent agreement between the shape of predicted dimensionless torque curves and experimental results for silica-silicone rubber premixes. The model was also found useful in correlating results reported in the literature for the quality of dispersion of carbon black into natural rubber.
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