Download or read book The Role of Surfactant polymer Interactions with the Solid liquid Interface in Fine Particle Flotation written by James Ervin Gebhardt and published by . This book was released on 1983 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Surfactant polymer Interaction with the Solid liquid Interface in Fine Particle Flotation written by James E. Gebhardt and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Interactions in Fine particle Flotation written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Many factors, such as a decrease in mass and an increase in surface area, have been considered to be responsible for the problems involved in the processing of fine particles. In this paper, the role of alterations in morphology, mineralogy, and surface chemical composition in the fine and ultrafine size range is considered. Particularly, interactions between surface layers resulting from precipitation or coating that can be a major force responsible for the behaviour of fines are discussed. Significant surface chemical alterations can result from surface precipitation of inorganics, organics, and polymers, depending upon solution properties such as pH. Chemical and hydrodynamic interactions between organic layers or polymer-surfactant layers can play an important role in such processes as carrier flotation and flocc-flotation. These interactions are discussed in terms of the solution chemistry of minerals, surfactants, and polymers in the system.
Download or read book Colloidal Science of Flotation written by Ahn Nguyen and published by CRC Press. This book was released on 2003-12-17 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keeping pace with explosive developments in the field, Colloidal Science of Flotation reviews and updates the fundamentals of the bubble-particle collection phenomenon using a self-consistent approach that helps readers understand the hydrodynamic aspects of bubble-particle collection. The authors examine bubble rise velocity, water velocity around air bubbles, the thinning of intervening liquid films, the stability of particle-bubble aggregates, and macroscopic processes in froth. They also survey the applicability of emerging technologies in industrial flotation deinking, wastewater treatment, flotation of plastics, and improvements in minerals and coal flotation.
Download or read book Effect of Surfactants on Bubble Particle Interactions written by Pavlína Basařová and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction of air bubbles with solid particles is an important mechanism in many industrial processes, e.g., in flotation, fermentation, wetting, multiphase reactors, columns, etc. The surface-active agents are adsorbed both on air-liquid and solid-liquid interfaces and significantly influence the bubble-particle interaction. In this chapter, the mechanism, dynamics, and fundamental steps of bubble adhesion onto the solid surface are described. The first part is devoted to the description of influence of surfactants on the bubble behavior during the collision, as well as their influence on thinning and breaking of liquid film. The second part describes the effect of surfactants on the formation and expansion of the three-phase contact line between the bubble and the hydrophobic solid particle. The important role of surfactant type, concentration, and purity is discussed.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1984-02 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interactions of Surfactants with Polymers and Proteins written by E. Desmond Goddard and published by CRC Press. This book was released on 2018-01-18 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interactions of Surfactants with Polymers and Proteins covers work done in this area over the last 30 years and examines in detail the physico-chemical, microstructural, and applications aspects of interactions of surfactants with polymers and proteins in bulk surfaces and at interfaces. The physical chemistry of individual components (surfactants, polymers, and proteins) is discussed, and extensive coverage of interactions of surfactants with uncharged, oppositely charged, and hydrophobe modified polymers is provided. Other topics addressed include water soluble and insoluble keratinous proteins, the principles and applications of fluorescence spectroscopy, the physical properties and microstructural aspects of polymer/protein-surfactant complexes, and implications of surfactant interactions with polymers and proteins in practical systems. Interactions of Surfactants with Polymers and Proteins provides a wealth of information for chemists involved in a number of different research areas, including cosmetics, pharmaceutics, foods, paints, pigments, lubrication, ceramics, minerals/materials processing, and biological systems.
Download or read book The Role of Surfactant and Shear Field on the Stability of Fine Particle Suspensions written by Chunghuan Li and published by . This book was released on 1986 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interactions in Complex Solutions of Polymers Particles Salts and Surfactants written by Beatrice Nicole Cattoz and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental pressures are driving detergent formulations to become ever-more so- phisticated blends of stabilisers; probing the interactions occurring in complex systems of hydrosoluble polymers with surfactants and their adsorption onto particles is key for the understanding of the mechanism of colloidal stability. In this thesis, the polymer-polymer and polymer-surfactant interactions have been investigated both in bulk and at the solid/liquid interface. The main techniques used were solvent relaxation NMR, photon correlation spectroscopy, small angle neutron scattering, diffusion NMR and optical reflectometry. The majority of experiments involved polyvinyl pyrrolidone, PVP, adsorbed on silica. Addition of sodium dodecyl sulfate, SDS, decreased the adsorbed amount but increased the layer thickness, leaving the remaining adsorbed polymer in an extended conformation caused by repulsive interactions amongst adsorbed surfactant aggregates and the silica interface. The introduction of a nonionic alcohol ethoxylate surfactant to this system prevented the desorption of the polymer layer as it formed mixed micelles with SDS reducing the total charges per micelle and lowering repulsions between the surface and the surfactant micelles. The effect of a non-adsorbing polymer, sodium polystyrene sulfonate, aPSS, on the stability of silica particles was also investigated, showing that addition of the polyelec- trolyte to the silica dispersion modifies the interparticles interactions. Small roughly spherical clusters were formed, followed by larger, less spherical aggregates resulting in the formation of a dense gel network. Exploring the PVP /N aPSS system showed that these polymers interact in bulk forming NaPSS-rich complexes; interfacial investigations revealed that adding aPSS to PVP previously adsorbed on silica led to surface complexes formation. Finally exposing PVP to sodium polyacrylate revealed some polymer interactions at high pH. These interactions were favoured by increasing molecular weights; adding this polymer to PVP adsorbed onto silica lead to a small decrease in adsorbed amount and some particle aggregation.
Download or read book Polymer Vs Surfactant written by B. R. Postmus and published by . This book was released on 2008 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Surface and Colloid Science written by Arthur T. Hubbard and published by CRC Press. This book was released on 2002-07-18 with total page 1580 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive reference collects fundamental theories and recent research from a wide range of fields including biology, biochemistry, physics, applied mathematics, and computer, materials, surface, and colloid science-providing key references, tools, and analytical techniques for practical applications in industrial, agricultural, and forensic processes, as well as in the production of natural and synthetic compounds such as foods, minerals, paints, proteins, pharmaceuticals, polymers, and soaps.
Download or read book Surface Chemistry of Surfactants and Polymers written by Bengt Kronberg and published by John Wiley & Sons. This book was released on 2014-09-26 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives the reader an introduction to the field of surfactants in solution as well as polymers in solution. Starting with an introduction to surfactants the book then discusses their environmental and health aspects. Chapter 3 looks at fundamental forces in surface and colloid chemistry. Chapter 4 covers self-assembly and 5 phase diagrams. Chapter 6 reviews advanced self-assembly while chapter 7 looks at complex behaviour. Chapters 8 to 10 cover polymer adsorption at solid surfaces, polymers in solution and surface active polymers, respectively. Chapters 11 and 12 discuss adsorption and surface and interfacial tension, while Chapters 13- 16 deal with mixed surfactant systems. Chapter 17, 18 and 19 address microemulsions, colloidal stability and the rheology of polymer and surfactant solutions. Wetting and wetting agents, hydrophobization and hydrophobizing agents, solid dispersions, surfactant assemblies, foaming, emulsions and emulsifiers and microemulsions for soil and oil removal complete the coverage in chapters 20-25.
Download or read book Adsorption and Aggregation of Surfactants in Solution written by K.L. Mittal and published by CRC Press. This book was released on 2002-11-07 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Role of Polymer surfactant in Interactions in Interfacial Processes written by Brij M. Moudgil and published by . This book was released on 1981 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Surfactant Systems written by J.C.T. Kwak and published by CRC Press. This book was released on 2020-10-28 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Chronicles recent advances in our knowledge of polymer-surfactant systems, combining authoritative reviews of new experimental methods, instrumentation, and applications with fundamental discussions of classical methodologies and surveys of specific properties."
Download or read book Smart Polymers and their Applications written by Maria Rosa Aguilar and published by Elsevier. This book was released on 2014-02-19 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart polymers are polymers that respond to different stimuli or changes in the environment. Smart Polymers and their Applications reviews the types, synthesis, properties, and applications of smart polymers. Chapters in part one focus on types of polymers, including temperature-, pH-, photo-, and enzyme-responsive polymers. Shape memory polymers, smart polymer hydrogels, and self-healing polymer systems are also explored. Part two highlights applications of smart polymers, including smart instructive polymer substrates for tissue engineering; smart polymer nanocarriers for drug delivery; the use of smart polymers in medical devices for minimally invasive surgery, diagnosis, and other applications; and smart polymers for bioseparation and other biotechnology applications. Further chapters discuss the use of smart polymers for textile and packaging applications, and for optical data storage. Smart Polymers and their Applications is a technical resource for chemists, chemical engineers, mechanical engineers, and other professionals in the polymer industry; manufacturers in such sectors as medical, automotive, and aerospace engineering; and academic researchers in polymer science. - Reviews the different types of smart polymer, discussing their properties, structure, design, and characterization - Reviews applications of smart polymers in such areas as biomedical engineering, textiles, and food packaging
Download or read book Interfacial Separation of Particles written by Shouci Lu and published by Elsevier. This book was released on 2005-01-25 with total page 707 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interfacial Separation of Particles is concerned with the processing and separation of fine solid particles in liquid solutions using interfacial technology.Interfacial separation has been finding wide application in many industrial fields, such as pigment and filler production, mineral processing, environmental protection, hydrometallurgy, bioengineering, food and beverage industry and chemical industry. This book describes all interfacial separation techniques and discusses the general and specific fundamentals of the techniques. The book intends to promote theoretical understanding and the more promising developments of interfacial separation technology whilst broadening the reader's background knowledge of industrial suspensions.* Is clearly written based on strong systematic science fundamentals* Provides comprehensive coverage on particle technology, mineral processing and water treatment* Includes practical examples from the different industrial fields
