Adsorption Of Particles On Fluid Liquid Interfaces
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Adsorption Of Particles On Fluid Liquid Interfaces
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Author : Bhavin Dalal
language : en
Publisher:
Release Date : 2012
Adsorption Of Particles On Fluid Liquid Interfaces written by Bhavin Dalal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Particles floating on fluid-liquid interfaces are of considerable interest because of their importance in a range of physical applications and biological processes, e.g., self-- assembly of particles at fluid-fluid interfaces resulting in novel nano structured materials, stabilization of emulsions, formation of pollen and insect egg rafts, etc. The aim of this dissertation is to explore the mechanism by which particles are adsorbed at fluid-liquid interfaces. It is shown that the inertia of a particle plays an important role in its motion in the direction normal to a fluid-liquid interface, and in determining the particles adsorption trajectory and orientation in the adsorbed state. Although the importance of inertia diminishes with decreasing particle size, on an air-water interface the inertia continues to be important even when the particle size is as small as a few nanometers. This dissertation also investigates the vertical oscillations of a particle while it is being adsorbed on an interface. The fact that the particle oscillates vertically implies that its behavior is similar to that of an under-damped mass-spring-dashpot system, and that it has characteristic linear and rotational frequencies which depend on the physical properties of the fluids involved and those of the particle. The experimentally measured frequency of oscillation of a particle is in approximate agreement with the frequency calculated analytically, which is noteworthy considering that the latter depends only on the fluid and particle properties, and that there are no adjustable parameters in the analytic expression. It is shown that similarly to an under-damped system, these characteristic frequencies can be excited by an external forcing. When a particle is adsorbed on a fluid-liquid interface it induces a relatively strong transient flow in the liquid which persists for several seconds. For a spherical particle the flow is axisymmetric about the vertical passing through the particle's center. To visualize this flow, an experiment is designed based of the Particle Image Velocimetry (PIV) technique. The measurements show that the fluid directly below the particle rises up, and near the interface it moves away from the particle. The velocity near the interface is found to be about an order of magnitude larger than in the liquid below the particle.
Colloidal Particles At Liquid Interfaces
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Author : Bernard P. Binks
language : en
Publisher: Cambridge University Press
Release Date : 2006-08-17
Colloidal Particles At Liquid Interfaces written by Bernard P. Binks and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-08-17 with Technology & Engineering categories.
The understanding of how small solid particles operate at liquid interfaces is minimal. This book brings together the topics actively being investigated, with contributions from experts in the field. It will be of interest to researchers in chemistry, physics, chemical engineering, pharmacy, food science and materials science.
Dynamics Of Adsorption At Liquid Interfaces
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Author : S.S. Dukhin
language : en
Publisher: Elsevier
Release Date : 1995-04-11
Dynamics Of Adsorption At Liquid Interfaces written by S.S. Dukhin and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-04-11 with Technology & Engineering categories.
As the first of its kind, this book provides a valuable introduction for scientists and engineers interested in liquid/fluid interfaces and disperse systems to the rapidly developing area of adsorption dynamics. It is the first extensive review available on the subject of dynamics of adsorption and gives a general summary of the current state of adsorption kinetics theory and experiments. Current progress in recently designed set-ups and improved and generalised known methods for studying interfacial relaxations is reviewed. In addition, the role of the electric charge of surfactants in the adsorption process is discussed in terms of a non-equilibrium distribution of adsorbing ions in the diffuse layer.Present theories of the effect of dynamic adsorption layers on mobile surfaces, such as moving drops and bubbles, based on both diffusion and kinetic controlled adsorption models are described and efficient approximate analytical methods to solve the mathematical problem of coupling surfactant transport and hydrodynamics are introduced. The role of a dynamic adsorption layer in bubble rising, film drainage and film stabilisation and in complex processes such as flotation and microflotation is discussed.Containing more than 1100 references, the book is essential reading for industrial scientists and graduate and post-graduate students in physical, surface and colloid chemistry, physico-chemical hydrodynamics, water purification and mineral processing.
Particles At Fluid Interfaces
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Author : Erica Wanless
language : en
Publisher: Frontiers Media SA
Release Date : 2019-05-09
Particles At Fluid Interfaces written by Erica Wanless and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-09 with categories.
Particles at Fluid Interfaces encompasses the processes and formulations that involve the stabilisation of fluid interfaces by adsorbed particles. The prevalence of these multiphase materials underpins their use in a broad range of industries from personal care and food technology to oil and mineral processing. The stabilisation conferred by the adsorbed particles can be transient as found in froth flotation or long-lived as occurs within Pickering Emulsions. The particles can range in size from nanoparticles to millimetre-sized particles, and cover a spectrum from collapsed proteins, polymeric colloids of controlled size and shape to high dispersity mineral particles.
Flowing Matter
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Author : Federico Toschi
language : en
Publisher: Springer Nature
Release Date : 2019-09-25
Flowing Matter written by Federico Toschi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-25 with Science categories.
This open access book, published in the Soft and Biological Matter series, presents an introduction to selected research topics in the broad field of flowing matter, including the dynamics of fluids with a complex internal structure -from nematic fluids to soft glasses- as well as active matter and turbulent phenomena. Flowing matter is a subject at the crossroads between physics, mathematics, chemistry, engineering, biology and earth sciences, and relies on a multidisciplinary approach to describe the emergence of the macroscopic behaviours in a system from the coordinated dynamics of its microscopic constituents. Depending on the microscopic interactions, an assembly of molecules or of mesoscopic particles can flow like a simple Newtonian fluid, deform elastically like a solid or behave in a complex manner. When the internal constituents are active, as for biological entities, one generally observes complex large-scale collective motions. Phenomenology is further complicated by the invariable tendency of fluids to display chaos at the large scales or when stirred strongly enough. This volume presents several research topics that address these phenomena encompassing the traditional micro-, meso-, and macro-scales descriptions, and contributes to our understanding of the fundamentals of flowing matter. This book is the legacy of the COST Action MP1305 “Flowing Matter”.
An Introduction To Interfaces Colloids
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Author : John C. Berg
language : en
Publisher: World Scientific
Release Date : 2010
An Introduction To Interfaces Colloids written by John C. Berg and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Science categories.
Offers an introduction to the topics in interfacial phenomena, colloid science or nanoscience. Designed as a pedagogical tool, this book recognizes the cross-disciplinary nature of the subject. It features descriptions of experiments and contains figures and illustrations that enhance the understanding of concepts.
Anisotropic Particle Assemblies
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Author : Ning Wu
language : en
Publisher: Elsevier
Release Date : 2018-07-16
Anisotropic Particle Assemblies written by Ning Wu and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-16 with Science categories.
Anisotropic Particle Assemblies: Synthesis, Assembly, Modeling, and Applications covers the synthesis, assembly, modeling, and applications of various types of anisotropic particles. Topics such as chemical synthesis and scalable fabrication of colloidal molecules, molecular mimetic self-assembly, directed assembly under external fields, theoretical and numerical multi-scale modeling, anisotropic materials with novel interfacial properties, and the applications of these topics in renewable energy, intelligent micro-machines, and biomedical fields are discussed in depth. Contributors to this book are internationally known experts who have been actively studying each of these subfields for many years. This book is an invaluable reference for researchers and chemical engineers who are working at the intersection of physics, chemistry, chemical engineering, and materials science and engineering. It educates students, trains the next generation of researchers, and stimulates continuous development in this rapidly emerging area for new materials and innovative technologies.
Adsorption And Aggregation Of Surfactants In Solution
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Author : K.L. Mittal
language : en
Publisher: CRC Press
Release Date : 2002-11-07
Adsorption And Aggregation Of Surfactants In Solution written by K.L. Mittal and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-11-07 with Science categories.
Offering the latest research and developments in the understanding of surfactant behavior in solutions, this reference investigates the role and dynamics of surfactants and their solution properties in the formulation of paints, printing inks, paper coatings, pharmaceuticals, personal care products, cosmetics, liquid detergents, and lubricants. Exploring the science behind techniques from oil recovery to drug delivery, the book covers surfactant stabilized particles; solid particles at liquid interfaces; nanocapsules; aggregation behavior of surfactants; micellar catalysis; vesicles and liposomes; the clouding phenomena; viscoelasticity of micellar solutions; and more.
Bijels
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Author : Paul S Clegg
language : en
Publisher: Royal Society of Chemistry
Release Date : 2020-03-18
Bijels written by Paul S Clegg and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-18 with Science categories.
Bicontinuous interfacially jammed emulsion gels, now commonly termed ‘bijels’ are a class of soft materials, in which interpenetrating, continuous domains of two immiscible fluids are maintained in a rigid arrangement by a jammed layer of colloidal particles at their interface. Such gels have unusual material properties that promise exciting applications across diverse fields from energy materials and catalysis, to food science. This is the first book on the subject and provides the reader with a fundamental introduction to the field. Edited by Paul Clegg, a recognised authority on bijels, the reader will learn about the bijel and its formation. Starting with three component systems, the reader will be introduced to systems using only two liquids and colloidal particles before moving onto more complex systems with additional components. These systems are looked at via both experimental and simulation studies, explaining phase separation kinetics, structure formation, properties and functionalisation. A closing section on bijel production using flow explores thin film and bulk structure formation relevant to larger scale materials design. 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. Foreword by Michael E. Cates, Lucasian Professor of Mathematics at the University of Cambridge.
Emulsions
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Author : Reinhard Miller
language : en
Publisher: CRC Press
Release Date : 2025-08-11
Emulsions written by Reinhard Miller and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-08-11 with Science categories.
This book presents a comprehensive investigation of the complex scientific principles and practical applications of emulsions, offering valuable references for researchers, industry professionals, and advanced students in the fields of physical chemistry, material sciences, and engineering. The book is structured in three sections, which allow the readers to explore the fundamental principles of interfacial phenomena, the methodologies for emulsion preparation, and the diverse applications of emulsions in various industrial branches in depth. The initial section establishes the fundamental principles, with a particular focus on the physico-chemical characterization of interfaces pertinent to emulsion stabilization. The book meticulously examines several topics, including adsorption dynamics, particle-laden interfaces and thin liquid films. It supports these discussions with a combination of experimental techniques and theoretical insights. The second section shifts focus to the practical aspects of emulsion production, examining state-of-the-art methods, the role of stabilizers, and strategies for enhancing their stability, including innovations in nanoemulsions and aqueous two-phase systems. The final section presents several real-world applications, demonstrating the significant role that emulsions play in a number of fields, including the petroleum industry, pest control and pharmaceutical formulations. This text, featuring contributions from leading experts, synthesizes foundational knowledge and cutting-edge research, thereby bridging the gap between theory and practice. With an interdisciplinary scope, the book addresses both academic and industrial perspectives, and is therefore an indispensable addition to the library of anyone working with emulsions. It provides the tools and understanding required to advance work in the development of new materials, optimization of formulations, and investigation of the mechanics of interfacial systems.