Foams And Emulsions
DOWNLOAD
Download Foams And Emulsions PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Foams And Emulsions book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Foams And Emulsions
DOWNLOAD
Author : J.F. Sadoc
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Foams And Emulsions written by J.F. Sadoc and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Technology & Engineering categories.
A general and introductory survey of foams, emulsions and cellular materials. Foams and emulsions are illustrations of some fundamental concepts in statistical thermodynamics, rheology, elasticity and the physics and chemistry of divided media and interfaces. They also give rise to some of the most beautiful geometrical shapes and tilings, ordered or disordered. The chapters are grouped into sections having fairly loose boundaries. Each chapter is intelligible alone, but cross referencing means that the few concepts that may not be familiar to the reader can be found in other chapters in the book. Audience: Research students, researchers and teachers in physics, physical chemistry, materials science, mechanical engineering and geometry.
Emulsions Microemulsions And Foams
DOWNLOAD
Author : Dominique Langevin
language : en
Publisher: Springer Nature
Release Date : 2020-12-21
Emulsions Microemulsions And Foams written by Dominique Langevin and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-12-21 with Science categories.
This book takes an interface science approach to describe and understand the behavior of the dispersions we call emulsions, microemulsions and foams. The one thing all these dispersions have in common is the presence of surface-active species (surfactants) adsorbed at the interfaces between the two fluid phases that make up the emulsions, microemulsions or foams. The interfacial layers formed by the surfactants control most of the properties of the dispersions. The book describes the properties of interfacial layers, thin films and bulk fluids used in the elaboration of the various dispersions and it explains how such properties relate to the dispersion properties of these soft matter systems: structure, rheology and stability. These dispersion properties are far from being fully understood, in particular foam and emulsion stability. In discussing the state of the art of the current knowledge, the author draws interesting parallels between emulsions, microemulsions and foams that enlighten the interpretation of previous observations and point to a deeper understanding of the behavior of these materials in the future.
Emulsions Foams And Suspensions
DOWNLOAD
Author : Laurier L. Schramm
language : en
Publisher: John Wiley & Sons
Release Date : 2006-05-12
Emulsions Foams And Suspensions written by Laurier L. Schramm and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-05-12 with Science categories.
Until now colloid science books have either been theoretical, or focused on specific types of dispersion, or on specific applications. This then is the first book to provide an integrated introduction to the nature, formation and occurrence, stability, propagation, and uses of the most common types of colloidal dispersion in the process-related industries. The primary focus is on the applications of the principles, paying attention to practical processes and problems. This is done both as part of the treatment of the fundamentals, where appropriate, and also in the separate sections devoted to specific kinds of industries. Throughout, the treatment is integrated, with the principles of colloid and interface science common to each dispersion type presented for each major physical property class, followed by separate treatments of features unique to emulsions, foams, or suspensions. The first half of the book introduces the fundamental principles, introducing readers to suspension formation and stability, characterization, and flow properties, emphasizing practical aspects throughout. The following chapters discuss a wide range of industrial applications and examples, serving to emphasize the different methodologies that have been successfully applied. Overall, the book shows how to approach making emulsions, foams, and suspensions with different useful properties, how to propagate them, and how to prevent their formation or destabilize them if necessary. The author assumes no prior knowledge of colloid chemistry and, with its glossary of key terms, complete cross-referencing and indexing, this is a must-have for graduate and professional scientists and engineers who may encounter or use emulsions, foams, or suspensions, or combinations thereof, whether in process design, industrial production, or in related R&D fields.
Emulsions Foams And Thin Films
DOWNLOAD
Author : K.L. Mittal
language : en
Publisher: CRC Press
Release Date : 2000-05-16
Emulsions Foams And Thin Films 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 2000-05-16 with Technology & Engineering categories.
This volume presents the acomplishments of over 85 internationlly renowned scientists whose work was influenced by Professor Wasan's groundbreaking research on interfacial phenomena at The Illinois Institute of Technology, Chicago.
Ion Specific Effect In Stability Of Foams And Emulsions
DOWNLOAD
Author : Shailesh Varade
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2014-07-28
Ion Specific Effect In Stability Of Foams And Emulsions written by Shailesh Varade and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-28 with categories.
Stability of foams and emulsions is of great importance in a large number of applications such as mineral processing, food stabilization and oil recovery. In many of these applications, inorganic salts are present in the aqueous phase along with surfactant. These salts strongly influence the adsorption characteristics of ionic surfactants. Stability of aqueous foams and hexane-in-water emulsions prepared with aqueous solutions of an anionic surfactant (viz. SDS) and three 1:1 salts (viz. LiCl, NaCl and CsCl) was studied in this work. The ion-specific behavior of the salts was the main focus of this study. The effectiveness of these salts in defoaming followed the sequence: LiCl > NaCl > CsCl. The same trend was observed in destabilizing the emulsions. The present work demonstrates that the ion-specific effect plays a significant role in the foaming properties of anionic surfactant solutions, size of the droplets in an emulsion, and the rate of destabilization of emulsions. It is possible to control the foam volume and emulsion stability by using different counterions of the same valence.
Food Emulsions And Foams
DOWNLOAD
Author : E. Dickinson
language : en
Publisher: Elsevier
Release Date : 1987-02-01
Food Emulsions And Foams written by E. Dickinson and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-02-01 with Technology & Engineering categories.
This text explains how properties of the system are affected by such factors as the crystallisation of the fat, the surface behaviour of the proteins, and presence of various small molecules and ions in the aqueous phase.
Effect Of Dispersed Lipids On The Dynamics Of Food Foams And Emulsions
DOWNLOAD
Author : Gina M. Pilhofer
language : en
Publisher:
Release Date : 1991
Effect Of Dispersed Lipids On The Dynamics Of Food Foams And Emulsions written by Gina M. Pilhofer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Multifunctional Foams And Emulsions For Subsurface Applications
DOWNLOAD
Author : Robin Singh (Ph. D.)
language : en
Publisher:
Release Date : 2017
Multifunctional Foams And Emulsions For Subsurface Applications written by Robin Singh (Ph. D.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Foams and emulsions hold immense potential in assisting in the different stages of oil recovery processes such as enhanced oil recovery, drilling, and completion. This work is focused on developing robust, multifunctional foams or emulsions for subsurface applications, which offer unique advantages over conventional methods. The first half of the dissertation is focused on investigating novel foams stabilized using nanoparticles and/or surfactants to improve the gas enhanced oil recovery process. Gas flooding often has poor volumetric sweep efficiency due to viscous fingering, channeling, and gravity override. Foam is a promising tool to improve sweep efficiency in gas floods. It can reduce the mobility of gas by several orders of magnitude by increasing its apparent viscosity while keeping the liquid phase mobility unchanged. For sandstone reservoirs, which are typically water-wet in nature, two different approaches of foam stabilization using nanoparticles were developed. In the first approach, synergistic stabilization of foams with a mixture of hydrophilic nanoparticles and an anionic surfactant was investigated. Foam stability experiments in bulk and porous media tests showed that adding hydrophilic nanoparticles to surfactant formulations increases the foam stability. Microscopy revealed that nanoparticles are trapped in lamellae as well as at the Gibbs-Plateau borders. These nanoparticles act as physical barriers and retard the liquid drainage and the Ostwald ripening process. To fundamentally understand the role of nanoparticles in altering the foam dynamics in porous media, a high-pressure visualization experiment was performed in a 2D layered, heterogeneous porous media. This experiment showed that immiscible foams can result in significant incremental oil recovery of 25% to 34% OOIP (over waterflood). In the second approach, foam stabilized using in-situ surface-activated nanoparticles without any surfactant was explored as an EOR agent. The surface chemistry of the hydrophilic nanoparticles was tailored by adsorption of a small amount of short-chain surface modifiers to obtain surface-modified nanoparticles (SM-NP). Foam stabilization using these SM-NP was compared with that using a conventional surfactant to evaluate the potential of these SM-NP to act as an effective foaming agent. Carbonate reservoirs, which are typically highly heterogeneous and oil-wet in nature, pose additional challenges for an effective foam EOR process. Crude oils are typically detrimental to foam stability. An oil-wet carbonate will have a thin oil film on the surface and thus foam lamellae stabilization is challenging. Therefore, wettability-alteration of rock matrix toward water-wet condition using a surfactant is required to favor the in-situ foam stability. This work demonstrated for the first time a synergistic approach of using foams with wettability-altering capabilities for oil-wet systems. It was shown that optimal surfactant formulations can not only alter the wettability of a carbonate core from oil-wet to water-wet conditions, but also can significantly increase the in-situ foam stability even in presence of crude oil. The second half of the dissertation is focused on developing novel microencapsulation techniques using the concept of water-in-air powders for subsurface applications. A facile, one-step method was reported to encapsulate micro- or nano-sized hydrophilic particles using silica nanoparticles. The encapsulated particles can be released based on an external stimulus, such as a change in pH of the external continuous phase. The use of this novel carrier system was demonstrated for the delayed release of PPG particles for conformance control. The application of this technology was then explored for microencapsulating highly concentrated acids (~10 wt.% HCl) for acid treatment of shales. The advantages of these novel acid-in-air powders over conventional acid-in-oil emulsions (which are typically used for shale acidization processes) were illustrated in terms of the thermal stability, corrosion inhibition efficiency, and shale surface reactivity.
Foams Physics Chemistry And Structure
DOWNLOAD
Author : Ashley J. Wilson
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Foams Physics Chemistry And Structure written by Ashley J. Wilson and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Technology & Engineering categories.
Foams and froths are an important feature of everyday life; one only has to think of shaving foam, foam upholstery, fire fighting foam, bread, bear head, and ice cream. Less obvious but equally important are the foams and foaming processes which are being exploited in ever more complex and imaginative ways in industry. However, the unusual nature of foams, the fact that they are neither solids or liquids, and their very fragility has prevented scientists from obtaining a thorough understanding of even the basic principles of foam formation and stability. This volume presents papers on the physics, chemistry, structure and ultrastructure of foams by contributors from a wide range of backgrounds and research disciplines. The aim of the book is to present a unique multi-disciplinary cross section of work currently being undertaken on the subject of foams.
Protein Stabilised Foams And Emulsions
DOWNLOAD
Author : Consultant Cardiac Radiologist Peter Wilde
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2012-03
Protein Stabilised Foams And Emulsions written by Consultant Cardiac Radiologist Peter Wilde and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03 with categories.
A critical analysis of research papers by the author on the interfacial mechanisms controlling the stability of protein stabilised foams and emulsions. Proteins can stabilise foams and emulsions, by forming a visco-elastic adsorbed layer on the surface of the bubbles and droplets. The influence of protein molecular structure and the competitive adsorption of surfactants on the interfacial properties and the subsequent effects on foam and emulsion stability are presented. Approaches to increase the resistance to competitive adsorption through using hydrophobic proteins and highly elastic interfaces are described. The displacement of proteins from interfaces by surfactants was found to be a physical displacement process which heavily depended on the visco-elasticity of the protein adsorbed layer. Finally, approaches to protect foams against competitive destabilisation using lipid binding proteins, and non-covalent crosslinking proteins at the interface are shown. This caused in increase in surface elasticity, and hence improved foam stability.