FIELD: measurement equipment.
SUBSTANCE: to detect wettability of investigated material surface, the sample of the investigated material is placed into a tight cell of a calorimeter. Sample contact is provided with the first wetting fluid and the second wetting fluid under identical pressure and temperature. Energies of sample wetting with the first and second wetting liquids are measured, afterwards they calculate the parameter of wettability, which characterises the surface-liquid-liquid system.
EFFECT: increased quality and efficiency of measurement of surface wettability with two fluids at different pressures and temperatures, increased speed of such works performance with simultaneous reduction of risk of their wrong performance.
19 cl
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