By Peter Ulbig, Johannes Seippel (auth.), Imre Dékány (eds.)
This quantity specializes in adsorption of recommendations on sturdy surfaces utilizing various experimental tools. training and characterization of nanoparticles, nanocomposites are a fascinating subject matter for fabric scientists. The environmental facets of adsorption and the homes of dispersions and microemulsions, surfactants, polymers, clay minerals, are handled and a precis of the present leads to interfacial phenomena and sleek colloid technological know-how is given.
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3. m- and paminobenzoic acid show similar behavior. Fig. 2 Adsorption of o-, m- and p-aminobenzoic acid at the goethite interface. Dependency of the f-potential of goethite particles after adsorption of amino acids and goethite in the absence of amino acids (pure goethite) on pH at 20 °C and Ic 1 ´ 10)2 mol dm)3. The mass concentration of goethite was kept suciently low In the pH region 2 The dispersed particles are assumed to have no oligomers on the surface. 39 All the dispersions were cleaned by centrifugation and redispersion, dialysis for 4 weeks and were transformed to the proton form by ion exchange. Characterisation of colloidal particles The mean diameters of the colloidal particles were determined by sedimentation in the centrifugal ®eld (Bi-DCP particle sizer, Brookhaven Instrument Corporation). The surface area was calculated from the diameter. 001 N poly(diallyldimethyl ammonium chloride). Type 1 latices have a smooth surface (Fig. 1a), whereas type 3 latices are supposed to have a hairy surface (Fig. 1b). The dierent surface structure leads to dierent stability behaviour. As the in¯uence of electrolytes on the stability of colloidal particles strongly depends on the change in the water structure by the ions, structural eects of the surface of the colloidal particles have an in¯uence as well [8]. In this study the selective liquid adsorption on colloidal polymer particles with dierent surface structure from 1-propanol(1)/water(2) mixtures is investigated by the reduced surface excess.