Abstract
The flocculation of large negative polystyrene particles by small positive polystyrene particles, each having an adsorbed layer of poly(vinyl alcohol) (PVA), has been investigated as a function of PVA molar mass and electrolyte (NaCl) concentration. The extent of flocculation was assessed from measurements of the sediment volume of the large particles as a function of concentration of added small particles. The flocculation was compared with the degrees of adsorption of the small particles on the large ones. A preliminary investigation of the morphology of the sediments produced has been carried out using scanning electron microscopy. Some studies have also been made of the effect of the mixing regime on the flocculation behaviour. The results have shown that flocculation by the addition of small particles of opposite charge to a dispersion has many features in common with flocculation by the addition of polyelectrolytes of opposite charge to the particles involved.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
