Abstract
The surface properties (i.e. the values of the Lifshitz-van der Waals ( γ LW) components and Lewis acid ( γ +) and base ( γ −) parameters) of talc, calcite, dolomite, silica and zirconia, untreated and as ground powders, were determined by contact angle measurements (directly on flat surfaces and by thin layer wicking for powders). The values of γ LW, γ +and γ − for these solids tend to change after grinding; γ LW and γ − decreased for all these solids and γ + often increased, depending on the material.
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