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Principles of Colloid and Surface Chemistry, Third Edition, Revised and Expanded, 3rd Edition by Raj Rajagopalan, Paul C. Hiemenz

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4

The Rheology of Dispersions

Imagine that your Tradesman drags behind his regular and respectable vertex, a parallelogram of twelve or thirteen inches in diagonal: What are you to do with such a monster sticking fast in your house door?

From Abbott’s Flatland

4.1  INTRODUCTION

4.1a  What Is Rheology?

The way liquids flow is one of their most obvious properties. We use a variety of terms in everyday language to describe this aspect of fluidlike substances. Thus we speak of the “thickness” of cream, the “weight” of oil, and the “leveling” of paint to describe the flow behavior and properties of such materials. The science student will probably recognize that all these terms allude in one way or another to a property known as the viscosity of the ...

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