Viscosity of a plastisol

The addition of a filler will generally increase the paste viscosity of a plastisol. To what extent is determined by the oil absorption value, density, particle size, shape, and distribution. 

The viscosity of a plastisol in which filler is dispersed, tj, is lelated to that of the unfilled plastisol, tjo, and the product of the volume fraction of filler, Vf, and the Einstein coefficient, k ... 

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