APPROXIMATE EXPRESSIONS FOR INTERACTION OF TWO SIMILAR PLANE PARALLEL DOUBLE LAYERS AT ARBITRARY POTENTIAL

Shi-Min Zhang
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Shi-Min Zhang: Institute of Functional Material & Chemistry, College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan, P. R. China

Surface Review and Letters (SRL), 2004, vol. 11, issue 03, 311-320

Abstract: Two approximate expressions used to compute the interaction energy between two similar plane parallel double layers are derived by expanding the interaction energy in the power series of$u_0(=\tanh\,\frac{y_0}{4})$at low dimensionless surface potentialy0or the power series of$w_0(=\frac{1-u_0}{1+u_0})$at high dimensionless surface potentialy0, respectively. Two series converge very fast. In the range of dimensionless surface potential of colloid particlesy0from1.00000×10-1to3.00000×10, whenC

Keywords: Plane parallel double layer; interaction energy; colloid particles (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1142/S0218625X04006256

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