Critical surface tension of solids Zismans method

1 Critical surface tension of solids (Zisman s method) 

However, there are objections to this method, because the value of yc is often uncertain since the extrapolation is quite long, and considerable curvature of the empirical line is present for solids on which a wide range of liquids form non-zero contact angles. It is gen- 

Solid 7c Critical surface tension (mN/m) from Zisman plot 7s° Dispersion Component (mN/m) from Fowkes method 7s Surface Tension (mN/m) from Fowkes method 

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