The removal of the carbon black (CB) particles from the polymer substrates was investigated in water/ethanol mixtures. As substrates, the films and the fibrous assemblies of polyethylene, nylon 6 and cellulose acetate were used. The ultrasonic wave was applied as a mechanical action for cleaning. The detergency of the CB particles for the films and the fibrous assemblies was assessed with the quartz crystal microbalance (QCM) technique and the reflectometry, respectively. The detergency for the films was discussed with the wetting force calculated from the experimentally determined contact angle on the substrate and surface tension of the water/ethanol mixture.
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