Emulsions, Microemulsions and Foams, Langevin Dominique
Автор: Langevin Dominique Название: Emulsions, Microemulsions and Foams ISBN: 3030556808 ISBN-13(EAN): 9783030556808 Издательство: Springer Цена: 18167.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: 1. Common background (about 100 pages) 1.1 Interfaces between pure fluids
- Surface pressure, surface rheology (compression and shear, viscoelasticity)
- Polymer layers: thickness, rheology, case of proteins
- Other species: asphaltenes, particles
- Mixed layers
1.3. Surfactant layers
- Adsorption-desorption: Gibbs description, validity of the Gibbs equation, Langmuir equation of state, energy barriers, depletion.
- Non-equilibrium systems: sorption and transfer kinetics, "dynamic" tension
- Surface rheology: extension of Gibbs description, resistance to compression and shear, viscoelasticity, Levich model, influence of the surface charge
1.4 Thin films: Interaction between surfaces (van der Waals, electrostatic, short range), disjoining pressure. Oscillatory forces, film stratification
1.5 Surfactants and self-associated systems: micelles, lyotropic liquid crystals,
- Surfactant parameter, link with HLB, HLD and PIT
- Critical micellar concentration, link with surfactant solubility, exchanges with bulk
- Micelle size distribution, micelles in organic solvents
3. Emulsions and foams (about 130 pages) 3.1 Emulsion and foam structures, analogies between high internal phase emulsions (HIPE) and foams, monodisperse dispersions
3.2 Foaming and emulsification: methods, control of drop/bubble size
3.3 Foam and emulsion rheology
- Wall slip
- Soft solid behavior, rejuvenation
- Link with structural reorganisation processes, the jamming transition
- Role of interfacial rheology
3.4 Foam and emulsion stability
- Sedimentation/creaming of emulsions: influence of surface rheology, influence of surfactant concentration and of drop volume fraction. Foam drainage, case of HIPEs
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Автор: Tharwat F. Tadros Название: Emulsions: Formation, Stability, Industrial Applications ISBN: 3110452170 ISBN-13(EAN): 9783110452174 Издательство: Walter de Gruyter Цена: 11148.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Chapter 1 General IntroductionDefinition of emulsions and the role of the emulsifier. Classification based on the nature of the emulsifier. Classification based on the structure of the system. General instability problems with emulsions : creaming/sedimentation, flocculation, Ostwald ripening, coalescence and phase inversion. Importance of emulsions in various industrial applications. Chapter 2 Thermodynamics of Emulsion Formation and BreakdownApplication of the second law of thermodynamics for emulsion formation : Balance of energy and entropy and non-spontaneous formation of emulsions. Breakdown of the emulsion by flocculation and coalescence in the absence of an emulsifier. Role of the emulsifier in preventing flocculation and coalescence by creating an energy barrier resulting from the repulsive energies between the droplets. Chapter 3 Interaction Forces between Emulsion DropletsVan der Waals attraction and its dependence on droplet size, Hamaker constant and separation distance between the droplets. Electrostatic repulsion resulting from the presence of electrical double layers and its dependence on surface (or zeta) potential and electrolyte concentration and valency. Combination of the van der Waals attraction with double layer repulsion and the theory of colloid stability. Steric repulsion resulting from the presence of adsorbed non-ionic surfactants and polymers. Combination of van der Waals attraction with steric repulsion and the theory of steric stabilisation. Chapter 4 Adsorption of Surfactants at the Oil/Water InterfaceThermodynamic analysis of surfactant adsorption and the Gibbs adsorption isotherm. Calculation of the amount of surfactant adsorption and area per surfactant molecule at the interface. Experimental techniques for measuring the interfacial tension. Chapter 5 Mechanism of Emulsification and the Role of the EmulsifierDescription of the factors responsible for droplet deformation and its break-up. Role of surfactant in preventing coalescence during emulsification. Definition of the Gibbs dilational elasticity and the Marangoni effect in preventing coalescence. Chapter 6 Methods of EmulsificationPipe flow, static mixers and high speed stirrers (rotor-stator mixer). Laminar and turbulent flow. Membrane emulsification. High pressure homogenisers and ultrasonic methods. Chapter 7 Selection of EmulsifiersThe hydrophilic-lipophilic-balance (HLB) and its application in surfactant selection. Calculation of HLB numbers and the effect of the nature of the oil phase. The phase inversion temperature (PIT) method for emulsifier selection. The cohesive energy ratio method for emulsifier selection. Chapter 8 Creaming/Sedimentation of Emulsions and its preventionDriving force for creaming/sedimentation: effect of gravity, droplet size and density difference between the oil and continuous phase. Calculation of the rate of creaming/sedimentation in dilute emulsions. Influence of increase of the volume fraction of the disperse phase on the rate of creaming/sedimentation. Reduction of creaming/sedimentation: Balance of the density of the two phases, reduction of droplet size and effect of addition of ''thickeners'. Chapter 9 Flocculation of Emulsions and its PreventionFactors affecting flocculation. Calculation of fast and slow flocculation rate. Definition of stability ratio and its dependence on electrolyte concentration and valency. Definition of the critical coagulation concentration and its dependence on electrolyte valency. Reduction of flocculation by enhancing the repulsive forces. Chapter 10 Ostwald Ripening and its ReductionFactors responsible for Ostwald ripening : difference in solubility between small and large droplets and the Kelvin equation. Calculation of the rate of Ostwald ripening. Reduction of Ostwald ripening by incorporation of a small amount of highly insoluble oil. Reduction of Ostwald ripening by the use of strongly adsorbed polymeric surfactant and enhancement of the Gibbs elasticity. Chapter 11 Emulsion Coalescence and its PreventionDriving force for emulsion coalescence : Thinning and disruption of the liquid film between the droplets. The concept of disjoining pressure for prevention of coalescence. Methods for reduction or elimination of coalescence : Use of mixed surfactant films, use of lamellar liquid crystalline phases and use of polymeric surfactants. Chapter 12 Phase Inversion and its PreventionDistinction between catastrophic and transient phase inversion. Influence of the disperse volume fraction and surfactant HLB number. Explanation of the factors responsible for phase inversion. Chapter 13 Characterisation of EmulsionsMeasurement of droplet size distribution : Optical microscopy and image analysis. Phase contrast and polarising microscopyDiffraction methods. Confocal laser microscopy. Back scattering methods Chapter 14 Industrial Application of Emulsions14.1 Application in Pharmacy14.2 Application in Cosmetics 14.3 Application in Agrochemicals14.4 Application in Paints14.5 Application in the Oil Industry
Автор: Nikhil Gupta; Dinesh Pinisetty; Vasanth Chakravart Название: Reinforced Polymer Matrix Syntactic Foams ISBN: 3319012428 ISBN-13(EAN): 9783319012421 Издательство: Springer Рейтинг: Цена: 7836.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book examines the fabrication processes, mechanism of reinforcement, and structure-property correlations of reinforced syntactic foams. It includes validated theoretical models, enabling users to select compositions based on their requirements.
Автор: Fanun, Monzer Название: Sugar Esters Microemulsions ISBN: 0128116536 ISBN-13(EAN): 9780128116531 Издательство: Elsevier Science Рейтинг: Цена: 26107.00 р. Наличие на складе: Поставка под заказ.
Описание: Sugar Esters Microemulsions covers recent advances in the formulation, characterization and applications of sugar esters microemulsions. This book comprehensibly covers a decade of experience on using sugar surfactants for various applications. It enables researchers in the field to follow a tested methodology in choosing the best sugar surfactant formulation that fits an application of interest. This book is the ultimate reference for all those in industry or academy working in the field of microemulsions in general and sugar esters in particular.
Автор: Jenkins Anthony Название: Handbook of Microemulsions ISBN: 1632382555 ISBN-13(EAN): 9781632382559 Издательство: Неизвестно Цена: 22990.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Автор: William M. Gelbart; Avinoam Ben-Shaul; Didier Roux Название: Micelles, Membranes, Microemulsions, and Monolayers ISBN: 1461383919 ISBN-13(EAN): 9781461383918 Издательство: Springer Рейтинг: Цена: 11101.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Over the last decades, the study of surfactants (detergents, for example) has been profoundly changed by ideas and techniques from physics, chemistry, and materials science. This book represents the first systematic account of these new developments, providing both a general introduction to the subject as well as a review of recent developments.
Автор: Clegg, Paul S Название: Bijels: Bicontinuous Particle-Stabilized Emulsions ISBN: 1788015207 ISBN-13(EAN): 9781788015202 Издательство: Royal Society of Chemistry Рейтинг: Цена: 37805.00 р. Наличие на складе: Нет в наличии.
Описание: Bringing together current understanding this book aims to bring the potential application of bijels to diverse materials challenges closer to fruition. This is a must-have resource for anyone working in soft matter and applied fields.
Описание: Characterization of Liquids, Dispersions, Emulsions and Porous Materials Using Ultrasound, Third Edition, presents a scientific background for novel methods of characterizing homogeneous and heterogeneous liquids (dispersions, emulsions, and gels) as well as porous materials. Homogeneous liquids are characterized in rheological terms, whereas particle-size distribution and zeta potential are parameters of heterogeneous liquids. For porous materials, porosity, pore size, and zeta potential are output characteristics. These methods are based on ultrasound, which opens an opportunity for simplifying the sample preparation by eliminating dilution. This in turn, makes measurements faster, easier, precise, suitable for accurate quality control, PAT, and formulation of complex systems. . This book provides theoretical background of acoustics, rheology, colloid science, electrochemistry, and other relevant scientific fields, describing principles of existing instrumentation and, in particular, commercially available instruments. Finally, the book features an extensive list of existing applications. .
Автор: Nofar, Mohammadreza (assistant Professor, Metallur Название: Polylactide foams ISBN: 0128139919 ISBN-13(EAN): 9780128139912 Издательство: Elsevier Science Рейтинг: Цена: 33686.00 р. Наличие на складе: Поставка под заказ.
Описание: Polylactide Foams: Fundamentals, Manufacturing, and Applications provides an introduction to the fundamental science behind plastic foams, polylactic acid) and polylactide foaming, giving designers tactics to replace traditional resins with sustainable and biodegradable materials. The book then delves deeper into the technology behind PLA foaming, such as PLA/gas mixture characteristics, solubility, interfacial tension behaviors and crystallization kinetics of various types of PLA and their compounds. The foaming behaviors and mechanisms of various types of PLA and PLA compounds are extensively analyzed and discussed through different manufacturing technologies, namely extrusion foaming, foam injection molding and bead foaming. . Interest in Poly(lactic acid) and PLA foams is extremely high – particularly as a potential replacement for styrenic resins – and the price of PLA resin is lower than ever before. This biopolymer has significant potential to improve the sustainability of the plastics industry. Polylactide Foams have a range of potential applications, such as in construction, packaging, insulation, biomedical scaffolds, and others. However, processing and performance of PLA are not at the same level as other non-biodegradable resins.
Автор: Obi, Bernard Название: Polymeric Foams Structure-Property-Performance ISBN: 1455777552 ISBN-13(EAN): 9781455777556 Издательство: Elsevier Science Рейтинг: Цена: 26444.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Polymeric Foams Structure-Property-Performance: A Design Guide is a response to the design challenges faced by engineers in a growing market with evolving standards, new regulations, and an ever-increasing variety of application types for polymeric foam. Bernard Obi, an author with wide experience in testing, characterizing, and applying polymer foams, approaches this emerging complexity with a practical design methodology that focuses on understanding the relationship between structure-properties of polymeric foams and their performance attributes. The book not only introduces the fundamentals of polymer and foam science and engineering, but also goes more in-depth, covering foam processing, properties, and uses for a variety of applications.
By connecting the diverse technologies of polymer science to those from foam science, and by linking both micro- and macrostructure-property relationships to key performance attributes, the book gives engineers the information required to solve pressing design problems involving the use of polymeric foams and to optimize foam performance. With a focus on applications in the automotive and transportation industries, as well as uses of foams in structural composites for lightweight applications, the author provides numerous case studies and design examples of real-life industrial problems from various industries and their solutions.
Provides the science and engineering fundamentals relevant for solving polymer foam application problems
Offers an exceptionally practical methodology to tackle the increasing complexity of real-world design challenges faced by engineers working with foams
Discusses numerous case studies and design examples, with a focus on automotive and transportation
Utilizes a practical design methodology focused on understanding the relationship between structure-properties of polymeric foams and their performance attributes
Описание: The primary focus of this book, accordingly, is to provide insight into the fundamentals, applications, manufacturing aspects and properties (mechanical, thermal, electrical etc.) of metal foams.
Автор: Chris Defonseka Название: Flexible Polyurethane Foams: A Practical Guide ISBN: 3110639580 ISBN-13(EAN): 9783110639582 Издательство: Walter de Gruyter Цена: 19330.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Flexible and viscoelastic polyurethane foams have enormous potential as viable business ventures and have replaced many traditional materials used in everyday life. This book describes the chemistry of flexible and viscoelastic polyurethane foams as well as calculations and formulating methodology for quality production. The author presents detailed information on foam manufacturing, based on over 45 years of hands-on industry experience.
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