On the structure formation of hydrophobed particles in the boundary layer of water and octane phases |
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Authors: | Z. Hórvölgyi G. Medveczky M. Zrinyi |
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Affiliation: | (1) Present address: Department of Physical Chemistry, Technical University of Budapest, Egry j.u. 20-22, H-1111 Budapest, Hungary |
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Abstract: | Two-dimensional aggregation of the surface modified glass beads was carried out in the boundary layer of water and octane phases. The effect of particles' hydrophobicity was investigated on the structure of forming aggregates and the growth process. The structure of the aggregates and their growth were characterized by a density function which demonstrates the change of mean particle density as a function of aggregate size. The growth yielded fractal or nonfractal structures in the investigated systems. The fractal structure of the aggregates was observed to be dependent on restructuring processes controlled by the surface properties of the beads.The experimental results are compared with earlier findings for aggregation of hydrophobic beads in the boundary layer of water and air phases.On leave from Loránd Eötvös University, Budapest, Hungary |
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Keywords: | Hydrophobicity contact angle hydrophobic interaction structure formation fractal dimension restructuring |
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