Interaction Energy Between Spherical Colloidal Particles─The Improvement On Derjaguin Method

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (10): 1538.

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Interaction Energy Between Spherical Colloidal Particles─The Improvement On Derjaguin Method

WANG Hao-Ping, Jin Jun, L. Blum

1. Department of Petrochemical Engineering, Fushun Petroleum, Fushun, 113001;
2. Department of Physics, University of Puerto Rico, San Juan, U.S.A.

Received:1993-12-14 Revised:1994-03-19 Online:1994-10-24 Published:1994-10-24

Abstract

Abstract: The correction to classical Derjaguin method has been made in the formulae for the double layer interaction at constant surface potential between two identical and between two dissimilar spheres.The expressions which can be applied to any ka and kHare obtained, in which k is Parameter, a is the radius of particles, His the shortest distance between the two spheres.The improved Derjaguin approximation opens up a usual area of familiar Derjagain formulae, and gives the exact results.

Key words: Spheres, DLVO theory, Repulsive energy, Electrical double layer

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WANG Hao-Ping, Jin Jun, L. Blum. Interaction Energy Between Spherical Colloidal Particles─The Improvement On Derjaguin Method[J]. Chem. J. Chinese Universities, 1994, 15(10): 1538.

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Interaction Energy Between Spherical Colloidal Particles─The Improvement On Derjaguin Method

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