Abstract
AnnotationBy applying to the surface of the nylon membrane of polystyrene particles, dynamic nylon-polystyrene membranes with a final content of 3.4 % by weight were obtained. The content of polystyrene on the surface of the nylon membrane is indirectly confirmed by IR Fourier spectroscopy methods. An increase in the contact angle of the droplets of distilled water of the membrane as a result of depositing polystyrene particles on the surface of the initial membrane was revealed. According to the results of scanning electron microscopy, it was found that polystyrene particles with sizes from 0.05 to 0.2 microns are located on the surface and in pores of a nylon substrate. After applying a layer of polystyrene on the surface of the membrane, the specific productivity of the membranes decreases by an order of magnitude, due to the intensive accumulation of polystyrene particles in the pores and membrane surface. The maximum productivity of the initial and dynamic membranes is observed when the distilled water is passed through. Dynamic membrane ultrafiltration with a surface layer of polystyrene is designed to separate water-oil emulsions. The degree of separation of water-oil emulsion with a concentration of oil products of 10 g/dm3 is more than 98 %.
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