TY - JOUR
T1 - Heteroflocculation in binary colloidal suspensions
T2 - Monte Carlo simulations
AU - Shih, Wan Y.
AU - Shih, Wei Heng
AU - Aksay, Ilhan A.
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1996/10
Y1 - 1996/10
N2 - We have examined heteroflocculation in binary colloidal suspensions by Monte Carlo simulations based on a diffusion-limited-cluster-aggregation (DLCA) model modified with finite attraction energies. The simulations were performed in two dimensions. Under heteroflocculation conditions, i.e., attraction between unlike particles and repulsion between like particles, cluster size undergoes a maximum as the concentration of the second species of particles is increased, similar to the experimental results in both binary suspensions and suspensions with adsorbing polymers. The initial increase in cluster size at low concentrations of the second species of particles is due to the mutual attraction between unlike particles. The decrease in cluster size at higher concentrations of the second species of particles is due to the repulsion between the second species of particles. The distinction between heteroflocculation and particulate depletion flocculation is discussed. star operator sign Member, American Ceramic Society.
AB - We have examined heteroflocculation in binary colloidal suspensions by Monte Carlo simulations based on a diffusion-limited-cluster-aggregation (DLCA) model modified with finite attraction energies. The simulations were performed in two dimensions. Under heteroflocculation conditions, i.e., attraction between unlike particles and repulsion between like particles, cluster size undergoes a maximum as the concentration of the second species of particles is increased, similar to the experimental results in both binary suspensions and suspensions with adsorbing polymers. The initial increase in cluster size at low concentrations of the second species of particles is due to the mutual attraction between unlike particles. The decrease in cluster size at higher concentrations of the second species of particles is due to the repulsion between the second species of particles. The distinction between heteroflocculation and particulate depletion flocculation is discussed. star operator sign Member, American Ceramic Society.
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U2 - 10.1111/j.1151-2916.1996.tb09020.x
DO - 10.1111/j.1151-2916.1996.tb09020.x
M3 - Article
AN - SCOPUS:0030259887
SN - 0002-7820
VL - 79
SP - 2587
EP - 2591
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 10
ER -