Term: disjoining pressure (for the attraction between two surfaces)
https://doi.org/10.1351/goldbook.D01790

Definition:
The force Π d per unit area which can be obtained as the derivative of -gt with respect to the distance, where gt is the total Gibbs energy of interaction per unit area of each of the two flat and parallel plates.

Source: PAC, 1972, 31, 577. 'Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry' on page 616 (https://doi.org/10.1351/pac197231040577)

Citation: 'disjoining pressure (for the attraction between two surfaces)' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.D01790

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