Introduction to Colloid and Surface Chemistry |
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Page 77
... viscosity - Surface viscosity is the change in the viscosity of the surface layer brought about by the monomolecular film . Monolayers in different physical states can be readily distinguished by surface viscosity measurements . A ...
... viscosity - Surface viscosity is the change in the viscosity of the surface layer brought about by the monomolecular film . Monolayers in different physical states can be readily distinguished by surface viscosity measurements . A ...
Page 154
... Viscosity VISCOSITY The viscosity of a liquid is a measure of the internal resistance offered to the relative motion of different parts of the liquid . Viscosity is described as Newtonian when the shearing force per unit area between ...
... Viscosity VISCOSITY The viscosity of a liquid is a measure of the internal resistance offered to the relative motion of different parts of the liquid . Viscosity is described as Newtonian when the shearing force per unit area between ...
Page 161
... viscosity decreases with increasing ionic strength , often in a marked fashion . 5. Polymer molecular weights from viscosity measurements— Viscosity measurements cannot be used to distinguish between particles of different size but of ...
... viscosity decreases with increasing ionic strength , often in a marked fashion . 5. Polymer molecular weights from viscosity measurements— Viscosity measurements cannot be used to distinguish between particles of different size but of ...
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acid adsorbed adsorption adsorption isotherm approximately aqueous behaviour Brownian calculated cell charged surface chemisorption cm-¹ cm³ coefficient colloidal dispersions colloidal particles colloidal systems constant contact angle counter-ions curve cylinder decreases deflocculated deformation depends detergent diffusion dispersion medium distance droplets effect electrical double layer electrode electrolyte emulsifying equation equilibrium example Figure film flocculation flocculation concentration flow hydrocarbon chains hydrophilic increase interaction interface intrinsic viscosity ionic ions isotherms light scattered material measured membrane method micelles mixed film molecular weight molecules monolayer monomolecular motion O/W emulsions orientated osmotic pressure physical adsorption plate polymer polymerization pores porous potential energy potential gradient protein ratio relative repulsive sample sedimentation shear soaps sodium solid surface soluble solution solvation solvent spherical particles stability Stern layer stress surface tension surface-active surfactant temperature theory thermal thixotropic valency vapour pressure velocity viscoelastic viscometer volume W/O emulsions Waals wetting zero zeta potential