Introduction to Colloid and Surface Chemistry |
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Page 92
... wetted by the liquid if the contact angle is zero and only partially wetted if the contact angle is finite . Complete non - wetting implies a contact angle of 180 ° , which is an unrealistic situation since it requires that either WS ...
... wetted by the liquid if the contact angle is zero and only partially wetted if the contact angle is finite . Complete non - wetting implies a contact angle of 180 ° , which is an unrealistic situation since it requires that either WS ...
Page 94
... Wetting Agents Surface - active materials are used as wetting agents in many practical situations . For example , in dips for sheep and cattle and in the application of insecticide and horticultural sprays54 , 94 THE SOLID - LIQUID ...
... Wetting Agents Surface - active materials are used as wetting agents in many practical situations . For example , in dips for sheep and cattle and in the application of insecticide and horticultural sprays54 , 94 THE SOLID - LIQUID ...
Page 176
... wetting phase is the dispersion medium ) . For example , bentonite clays ( which are preferentially wetted by water ) tend to give O / W emulsions , whereas carbon black ( which is preferentially oil wetted ) tends to give W / O emul ...
... wetting phase is the dispersion medium ) . For example , bentonite clays ( which are preferentially wetted by water ) tend to give O / W emulsions , whereas carbon black ( which is preferentially oil wetted ) tends to give W / O emul ...
Contents
THE COLLOIDAL STATE | 1 |
KINETIC PROPERTIES | 15 |
OPTICAL PROPERTIES | 38 |
Copyright | |
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acid adsorbed adsorption adsorption isotherm approximately aqueous behaviour boundary Brownian capillary condensation cell charged surface chemisorption cm-¹ co-ions colloidal dispersions colloidal particles colloidal systems constant contact angle counter-ions cross-section curve cylinder decreases deflocculated deformation depends detergent dispersion medium distance droplets effect electrical double layer electrode electrolyte emulsifying equation equilibrium example Figure film flocculation flocculation concentration flow heat hydrocarbon chains hydrophilic increase interaction interface intrinsic viscosity ionic ions isotherms light scattered lyophobic material measurements 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 protein relative repulsive sample sedimentation shear soaps sodium solid surface soluble solution solvation solvent 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