A new method for determining the osmotic pressure of electrostatically stabilized colloidal particles from frontal ultrafiltration experiments has been developed. The method is based on a reverse calculation utilizing a previously developed analysis of frontal ultrafiltration (W. R.
The Osmotic Pressure of Electrostatically Stabilized Colloidal Dispersions
β Scribed by W.Richard Bowen; Paul M. Williams
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 223 KB
- Volume
- 184
- Category
- Article
- ISSN
- 0021-9797
No coin nor oath required. For personal study only.
β¦ Synopsis
dependence of the osmotic pressure within the polarized A mathematical model for predicting the osmotic pressure of layer is often used in the theoretical prediction of the rate electrostatically stabilized colloids has been developed. The model of ultrafiltration of colloids (1-3). In such applications the is based on detailed descriptions of the colloidal interactions within dependence of the osmotic pressure on the concentration is an electrostatically stabilized dispersion. Electrostatic interactions usually expressed in the form of a virial equation, are accounted for by a Wigner-Seitz cell approach including a numerical solution of the nonlinear Poisson-Boltzmann equation.
π SIMILAR VOLUMES
The viscosity virial coefficient characteristic of a moderately concentrated dispersion [and proportional to the Huggins coefficient] is calculated for electrostatically stabilized monodisperse suspensions of spherical colloid particles. The energy of interaction between two colloid particles is mod
Electrostatic interactions are considered in the framework of the cell model to predict the osmotic pressure in concentrated disperse systems. A procedure was developed to represent the osmotic pressure as a function of two parameters, namely, the dispersed phase volume fraction and the electric pot
The stability of suspensions of nickel ferrite spheres is investigated for different compositions of the dispersion medium, in the absence and in the presence of an external magnetic field. The time-dependence of the optical absorbance of the suspensions is the quantity used for experimentally deter
A recently developed theory and computational procedure are used to generate theoretical estimates of the viscosity virial coefficient for polymerically stabilized monodisperse suspensions of spherical colloid particles. Numerical results are presented for representative values of the five parameter