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A new method for Characterization of the Surface Energy of Hydrophobic Particles
Author(s) -
Fuerstenau Douglas W.,
Williams Mark C.
Publication year - 1987
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.19870040103
Subject(s) - wetting , surface tension , surface energy , surface (topology) , materials science , aqueous solution , characterization (materials science) , specific surface energy , chemical engineering , chemical physics , composite material , nanotechnology , thermodynamics , chemistry , physics , geometry , mathematics , engineering
A film flotation technique has been developed for assessing the hydrophobicity/hydrophilicity of an assembly of particles which have a distribution of surface energies. With this method, particles are partitioned by placing them on the surface of a series of aqueous solutions of different surface tensions and determining the fraction imbibed into the liquid. From the results, a cumulative distribution of particles versus their critical wetting surface tension (surface energy) can be made. The mean critical wetting surface tension can be used as an index for making correlations with surface‐based processes.