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Colloid Mill Shear Fundamentals

INTRODUCTION Based on the known operating parameters of a Bematek colloid mill, it is possible to estimate the shear rate and shear stress experienced by each internal phase particle of an emulsion or dispersion while it is within the gap between the rotor and stator. Before presenting the calculations, it must be emphasized that any such attempt to develop a mathematical model of a real world situation can only be viewed as an approximation. The real world seldom, if ever, conforms in every detail to our neat and orderly expectations. Our analysis is limited both by a less than perfect understanding of the physics involved and by the necessity toRead More…


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