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First Experimental Proof of the Nonexistence of Long‐Range Hydrophobic Attraction Forces in Thin Wetting Films
Author(s) -
Stöckelhuber K. W.,
Schulze H. J.,
Wenger A.
Publication year - 2001
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/1521-4125(200106)24:6<624::aid-ceat624>3.0.co;2-x
Subject(s) - wetting , attraction , dlvo theory , nucleation , range (aeronautics) , thinning , reynolds number , materials science , chemical physics , mechanics , chemical engineering , chemistry , composite material , thermodynamics , physics , engineering , colloid , biology , turbulence , ecology , philosophy , linguistics
For the first time, it was possible to experimentally prove that thinning, destabilization and rupture of thin wetting films on hydrophobic silica surfaces are not caused by long‐range hydrophobic attraction forces. On the contrary, thinning and drainage can be explained by the DLVO theory and the well‐known Reynolds equation. The cause of the rupture of these thin films are nucleation processes which are not controlled by any forces of attraction.