Volume fraction effects in electroacoustic measurements
作者： Mikael Rasmusson
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摘要: Abstract We measured the dynamic mobility of a polystyrene latex at 1 MHz as function volume fraction using ESA-8000. The dependence is compared with semiempirical equation well some theoretical predictions. It turns out that our exhibits much weaker than predicted by any theories. This suggests (polystyrene) latices may not be ideal model system and centrifugation process influence surface structure particles. also spectrum silica sol Acoustosizer. experimental was found to agree reasonably spectra, especially below φ=0.144. At higher fractions we observed positive phase angles were method nor cell model.
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