00000cam a22000003i 4500 UP-1685594773862138085 Buklod 20240215110725.0 g||| | || || ta 190211s2016 enka rb |||1 u|eng d 9781118881187 (pbk.) (iLib)UPBAG-00032978823 BC-70430 Fastbooks Educational Supply, Inc. Php6,250.00 DPS Faculty OLC BAG rda eng QD 506 K66 2016 Kontogeorgis, Georgios M. author. Introduction to applied colloid and surface chemistry Georgios M. Kontogeorgis and Soren Kiil. Chichester, West Sussex, [England] John Wiley & Sons, Ltd. 2016. xix, 367 pages illustrations 25 cm text rdacontent unmediated rdamedia volume rdacarrier Includes bibliographical references and index. Introduction to Colloid and Surface Chemistry -- What are the colloids and interfaces? Why are they important? Why do we study them together? -- Colloids and interfaces -- Applications -- Three ways of classifying the colloids -- How to prepare colloid systems -- Key properties of colloids -- Concluding remarks -- -- Problems -- References -- Intermolecular and Interparticle Forces -- Introduction - Why and which forces are of importance in colloid and surface chemistry? -- Two important long-range forces between molecules -- The van der Waals forces -- Van der Waals forces between molecules -- Forces between particles and surfaces -- Importance of the van der Waals forces -- Concluding remarks -- A note on the uniqueness of the water molecule and some of the recent debates on water structure and peculiar properties -- References for the Appendix 2.1 -- Problems -- References -- Surface and Interfacial Tensions - Principles and Estimation Methods -- Introduction -- Concept of surface tension - applications -- Interfacial tensions, work of adhesion and spreading -- Interfacial tensions -- Work of adhesion and cohesion -- Spreading coefficient in liquid-liquid interfaces -- Measurement and estimation methods for surface tensions -- The parachor method -- Other methods -- Measurement and estimation methods for interfacial tensions -- "Direct" theories (Girifalco-Good and Neumann) -- Early "surface component" theories (Fowkes, Owens-Wendt, Hansen/Skaarup) -- Acid-base theory of van Oss-Good (van Oss et al., 1987) - possibly the best theory to-date -- Discussion -- Summary -- Hansen solubility parameters (HSP) for selected solvents -- The "Ø" parameter of the Girifalco-Good equation (Equation 3.16) for liquid-liquid interfaces. Data from Girifalco and Good (1957, 1960) -- Problems -- References -- Fundamental Equations in Colloid and Surface Science -- Introduction -- The Young equation of contact angle -- Contact angle, spreading pressure and work of adhesion for solid-liquid interfaces -- Validity of the Young equation -- Complexity of solid surfaces and effects on contact angle -- Young-Laplace equation for the pressure difference across a curved surface -- Kelvin equation for the vapour pressure, P, of a droplet (curved surface) over the "ordinary" vapour pressure Psat for a flat surface -- Applications of the Kelvin equation -- The Gibbs adsorption equation -- Applications of the Gibbs equation (adsorption, monolayers, molecular weight of proteins) -- Monolayers -- Conclusions -- Derivation of the Young-Laplace equation -- Derivation of the Kelvin equation -- Derivation of the Gibbs adsorption equation -- Problems -- References -- Surfactants and Self-assembly. Detergents and Cleaning -- Introduction to surfactants - basic properties, self-assembly and critical packing parameter (CPP) -- Micelles and critical micelle concentration (CMC) -- Micelhzation - theories and key parameters -- Surfactants and cleaning (detergency) -- Other applications of surfactants -- Concluding remarks -- Useful relationships from geometry -- The Hydrophihc-Lipophilic Balance (HLB) -- Problems -- References -- Wetting and Adhesion -- Introduction -- Wetting and adhesion via the Zisman plot and theories for interfacial tensions -- Zisman plot -- Combining theories of interfacial tensions with Young equation and work of adhesion for studying wetting and adhesion -- Applications of wetting and solid characterization -- Adhesion theories -- Introduction - adhesion theories -- Adhesive forces -- Practical adhesion: forces, work of adhesion, problems and protection -- Effect of surface phenomena and mechanical properties -- Practical adhesion - locus of failure -- Adhesion problems and some solutions -- Concluding remarks -- Problems -- References -- Adsorption in Colloid and Surface Science - A Universal Concept -- Introduction - universality of adsorption - overview -- Adsorption theories, two-dimensional equations of state and surface tension-concentration trends: a clear relationship -- Adsorption of gases on solids -- Adsorption using the Langmuir equation -- Adsorption of gases on solids using the BET equation -- Adsorption from solution -- Adsorption using the Langmuir equation -- Adsorption from solution - the effect of solvent and concentration on adsorption -- Adsorption of surfactants and polymers -- Adsorption of surfactants and the role of CPP -- Adsorption of polymers -- Concluding remarks -- Problems -- References -- Characterization Methods of Colloids - Part I: Kinetic Properties and Rheology -- Introduction - importance of kinetic properties -- Brownian motion -- Sedimentation and creaming (Stokes and Einstein equations) -- Stokes equation -- Effect of particle shape -- Einstein equation -- Kinetic properties via the ultracentrifuge -- Molecular weight estimated from kinetic experiments (1 = medium and 2 = particle or droplet) -- Sedimentation velocity experiments (1 = medium and 2 - particle or droplet) -- Osmosis and osmotic pressure -- Rheology of colloidal dispersions -- Introduction -- Special characteristics of colloid dispersions' rheology -- Concluding remarks -- Problems -- References -- Characterization Methods of Colloids - Part II: Optical Properties (Scattering, Spectroscopy and Microscopy) -- Introduction -- Optical microscopy -- Electron microscopy -- Atomic force microscopy -- Light scattering -- Spectroscopy -- Concluding remarks -- Problems -- References -- Colloid Stability - Part I: The Major Players (van der Waals and Electrical Forces) -- Introduction - key forces and potential energy plots - overview -- Critical coagulation concentration -- Van der Waals forces between particles and surfaces - basics -- Estimation of effective Hamaker constants -- VdW forces for different geometries - some examples -- Complex fluids -- Electrostatic forces: the electric double layer and the origin of surface charge -- Electrical forces: key parameters (Debye length and zeta potential) -- Surface or zeta potential and electrophoretic experiments -- The Debye length -- Electrical forces -- Effect of particle concentration in a dispersion -- Schulze-Hardy rule and the critical coagulation concentration (CCC) -- Concluding remarks on colloid stability, the vdW and electric forces -- VdW forces -- Electric forces -- A note on the terminology of colloid stability -- Gony-Chapman theory of the diffuse electrical double-layer -- Problems -- References -- Colloid Stability - Part II: The DLVO Theory - Kinetics of Aggregation -- DLVO theory - a rapid overview -- DLVO theory - effect of various parameters -- DLVO theory - experimental verification and applications -- Critical coagulation concentration and the Hofmeister series -- DLVO, experiments and limitations -- Kinetics of aggregation -- General - the Smoluchowski model -- Fast (diffusion-controlled) coagulation -- Stability ratio W -- Structure of aggregates -- Concluding remarks -- Problems -- References -- Emulsions -- Introduction -- Applications and characterization of emulsions -- Destabilization of emulsions -- Emulsion stability -- Quantitative representation of the steric stabilization -- Temperature-dependency of steric stabilization -- Conditions for good stabilization -- Emulsion design -- PIT - Phase inversion temperature of emulsion based on non-ionic emulsifiers -- Concluding remarks -- Problems -- References -- Foams -- Introduction -- Applications of foams -- Characterization of foams -- Preparation of foams -- Measurements of foam stability -- Destabilization of foams -- Gas diffusion -- Film (lamella) rupture -- Drainage of foam by gravity -- Stabilization of foams -- Changing surface viscosity -- Surface elasticity -- Polymers and foam stabilization -- Additives -- Foams and DLVO theory -- How to avoid and destroy foams -- Mechanisms of antifoaming/defoaming -- Rheology of foams -- Concluding remarks -- Problems -- References -- Multicomponent Adsorption -- Introduction -- Langmuir theory for multicomponent adsorption -- Thermodynamic (ideal and real) adsorbed solution theories (IAST and RAST) -- Multicomponent potential theory of adsorption (MPTA) -- Discussion. Comparison of models -- IAST - literature studies -- LAST versus Langmuir -- MPTA versus LAST versus Langmuir -- Conclusions -- Acknowledgments -- Proof of Equations 14.10a,b -- Problems -- References -- Sixty Years with Theories for Interfacial Tension - Quo Vadis? -- Introduction -- Early theories -- Van Oss-Good and Neumann theories -- The two theories in brief -- What do van Oss-Good and Neumann say about their own theories? -- What do van Oss-Good and Neumann say about each other's theories? -- What do others say about van Oss-Good and Neumann theories? -- What do we believe about The van Oss-Good and Neumann theories? -- A new theory for estimating interfacial tension using the partial solvation parameters (Panayiotou) Surface chemistry. Colloids. Kiil, Soren author. FO UPBAG UPBAG-MAIN QD 506 K66 2016 Book