Theory of Viscosity of Concentrated Suspensions
Theory of Viscosity of Concentrated Suspensions
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作者：
V. Vand
对于刚性球体的无限稀释悬浮液，爱因斯坦在严格的理论基础上推导出公式η = η0(1 +kc)，…(1)式中η为悬浮液粘度，η为纯溶剂粘度，顺式为体积浓度，k= 2.5为常数。(1)也适用于非球形粒子，其因素是它们的形状、刚性和布朗运动的函数。对于伸长的刚性颗粒，k> 2·5。
FOR infinitely diluted suspensions of rigid spheres, Einstein1derived on a rigorously theoretical basis the formula η = η0(1 +kc),... (1) where η is the viscosity of the suspension, η0is the viscosity of the pure solvent,cis the concentration by volume andk= 2·5 is a constant. It has been shown that (1) is also valid for non-spherical particles, the factorkbeing a function of their shape, rigidity and Brownian movement. For elongated rigid particles,k> 2·5.