Stabilization of Colloidal Dispersions by Polymer Adsorption |
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Page 49
... Figure 12 shows the changes in the interaction potential V1 for spherical particles of various diameters with separation distance , and as -12 calculated from Eq . ( 33 ) with a Hamaker constant A of 10 erg [ 150 ] . The figure shows ...
... Figure 12 shows the changes in the interaction potential V1 for spherical particles of various diameters with separation distance , and as -12 calculated from Eq . ( 33 ) with a Hamaker constant A of 10 erg [ 150 ] . The figure shows ...
Page 53
... Figure 15 shows the change in the structure of the electri- cal double layer on the particle surface by the adsorption of nonionic surfactants . Figure 15a shows a negatively charged sur- face with a surface potential , o , before ...
... Figure 15 shows the change in the structure of the electri- cal double layer on the particle surface by the adsorption of nonionic surfactants . Figure 15a shows a negatively charged sur- face with a surface potential , o , before ...
Page 56
... Figure 16 Adsorption ( circles ) of poloxyethylene nonionic sur- factant onto silver iodide powder , and mobility ( squares ) of the powder versus concentration of the nonionic surfactant . Open symbols -- C12E6 ; solid symbols -- C10E6 ...
... Figure 16 Adsorption ( circles ) of poloxyethylene nonionic sur- factant onto silver iodide powder , and mobility ( squares ) of the powder versus concentration of the nonionic surfactant . Open symbols -- C12E6 ; solid symbols -- C10E6 ...
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According addition adsorbed layer adsorbed polymer adsorption American Chemical Society amount of adsorption applied approach aqueous assumed attraction Bagchi barrier bridging calculated charge Chem Chemical Colloid Interfac concentration condition configurations constant curves decreases dependence derived determined discussed dispersion medium distance distribution DLVO theory double layer effect energy change entropic equation experimental extended Figure flocculation force free energy function given greater groups important increases interaction isotherm length loop measured mechanism method molecular weight Napper negative nonionic obtained occurs osmotic overlap oxide parameter particles Phys pigment plane poly polyamide polymer adsorption polymer molecules positive potential potential energy presence Redrawn with permission region relationship repulsive energy segments separation shown in Fig shows solution solvent stability studied surface tail temperature theoretical theory thickness tion unit various viscosity volume Waals