Download or read book The Rheology and Roll to roll Processing of Shear thickening Particle Dispersions written by Sunilkumar Khandavalli and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle dispersions are ubiquitous in our daily lives ranging from food and pharmaceutical products to inks. There has been great interest in the recent years in formulation of functional inks to fabricate myriad flexible electronic devices through high-throughput roll-to-roll technologies. The formulations often contain several functional additives or rheological modifiers that can affect the microstructure, rheology and processing. Understanding the rheology of formulations is important for tuning the formulation for optimal processing. This thesis presents investigations on the rheology of particle dispersions and their impact on roll-to-roll technologies. Shear-thickening behavior is common in particle dispersions, particularly, concentrated particulate inks. We have investigated the elongational rheology of a shear-thickening particle dispersions. We find that, an optimal polymer concentration resulted in a strong strain-hardening behavior with a magnitude that is significantly larger than the shear-thickening magnitude. Understanding the non-linear viscoelastic behavior of materials is very important, as deformations in applications are typically large. The rheology of three shear thickening dispersions with different thickening mechanisms was studied. Strong differences in the viscoelastic non-linearities in the three shear-thickening dispersions were observed. We next study the impact of rheology of shear thickening particle dispersions in gravure printing and slot die coating processes. In gravure printing, an efficient transfer of ink from gravure cell to the substrate is desired to print patterns with good print quality for desired product performance. We have conducted a study on how a shear thickening rheology impacts the amount of ink transfer. Distinct ink transfer behaviors associated with an extensional thickening, and an extensional thinning of the test fluids were observed. In a slot-die coating process, obtaining highly thin uniform defect free films at high speeds is a challenge. We have investigated the role of shear-thickening rheology on the stability of coating and the process window. The onset of shear-thickening was found to reduce the maximum web speeds for stable coating through the evolution of a ribbing defect. The presented investigations on the rheology of particle dispersions and their influence on roll-to-roll processing behavior would enable tuning of ink formulations and optimizing the process parameters towards fabrication of flexible electronics.
Download or read book Shear Thickening Fluid written by Selim Gürgen and published by Springer Nature. This book was released on 2023-03-22 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shear Thickening Fluid: Theory and Applications provides a complete reference on shear thickening fluid (STF) and STF applications for engineers, researchers, and scientists. STF rheology is discussed in terms of several factors, including suspension medium, particle size, particle shape, and environmental conditions. Single-phase STF is discussed, and the novel concept of multi-phase STF is examined by considering various fillers in this smart fluid. Prominent applications of STF are categorized as multi-functional systems, adaptive damping devices, surface finishing operations, and protective structures, and the applications are described by discussing the smart behavior of STF.
Download or read book Theory and Applications of Colloidal Suspension Rheology written by Norman J. Wagner and published by Cambridge University Press. This book was released on 2021-04-15 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essential text on the practical application and theory of colloidal suspension rheology, written by an international coalition of experts.
Download or read book Applied Plastics Engineering Handbook written by Myer Kutz and published by William Andrew. This book was released on 2011-07-20 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical reference for all plastics engineers who are seeking to answer a question, solve a problem, reduce a cost, improve a design or fabrication process, or even venture into a new market. Applied Plastics Engineering Handbook covers both polymer basics – helpful to bring readers quickly up to speed if they are not familiar with a particular area of plastics processing – and recent developments – enabling practitioners to discover which options best fit their requirements. Each chapter is an authoritative source of practical advice for engineers, providing authoritative guidance from experts that will lead to cost savings and process improvements. Throughout the book, the focus is on the engineering aspects of producing and using plastics. The properties of plastics are explained along with techniques for testing, measuring, enhancing and analyzing them. - Practical introductions to both core topics and new developments make this work equally valuable for newly qualified plastics engineers seeking the practical rules-of-thumb they don't teach you in school, and experienced practitioners evaluating new technologies or getting up to speed on a new field - The depth and detail of the coverage of new developments enables engineers and managers to gain knowledge of, and evaluate, new technologies and materials in key growth areas such as biomaterials and nanotechnology - This highly practical handbook is set apart from other references in the field, being written by engineers for an audience of engineers and providing a wealth of real-world examples, best practice guidance and rules-of-thumb
Download or read book Shear Thickening Fluids in Protective Applications written by Selim Gürgen and published by Springer Nature. This book was released on 2023-11-26 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a complete reference to the use of shear thickening fluid (STF) in protective applications. It discusses the adaptive behavior of STF in various systems and how it is used effectively in a wide range of protective applications from low-velocity to high-velocity conditions. Covered applications include STF-based energy absorbing systems, anti-impact structures, deceleration devices, shock attenuation composites, and body armor applications. Shear Thickening Fluid in Protective Applications will be a valuable reference for practicing engineers, researchers, and scientists working in advanced materials, protective applications, and smart structures.
Download or read book The Rheology of Adhesive Hard Sphere Dispersions written by Albertus Theodorus Jozef Maria Woutersen and published by . This book was released on 1993 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheology written by Frederick R. Eirich and published by Academic Press. This book was released on 2014-05-12 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rheology: Theory and Applications, Volume 4 focuses on the characteristics and reactions of materials of more fluid nature, including viscosity, dispersions, kinetics, and molecular structure. The selection first elaborates on viscosity and molecular structure and microrheology of dispersions. Discussions focus on applications to hemorheology and suspension viscosity, kinetics of flowing dispersions, inertial effects, stresses on particles in laminar shear, molecular motions in liquids, effect of molecular structure on viscosity of nonassociated liquids, and viscosity of mixtures and solutions. The manuscript then takes a look at high-shear viscometry and thixotropy and dilatancy, as well as polymer degradation under high-shear conditions, occurrence of thixotropy and dilatancy, structural turbulence, and analysis of flow behavior at high shear rates. The text examines the rheological aspects of the mixing of plastics compounds, rheology of liquid crystals, and nonlinear steady-flow behavior. Topics include normal stress functions, cholesteric mesophase, nematic mesophase and systems of rods, experimental evaluation of laminar-flow mixing theory, and mixers in the plastics industry. The selection is a dependable source material for researchers interested in the theories and applications of rheology.
Download or read book The Rheology Handbook written by Thomas Mezger and published by European Coatings. This book was released on 2020-08-25 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Already in its 5th edition, this standard work describes the principles of rheology clearly, vividly and in practical terms. The book includes the rheology of additives in waterborne dispersions and surfactant systems. Not only it is a great reference book, it can also serve as a textbook for studying the theory behind the methods. The practical use of rheology is presented in the areas quality control, production and application, chemical and mechanical engineering, materials science and industrial research and development. After reading this book, the reader should be able to perform tests with rotational and oscillatory rheometers and interpret the results correctly.
Download or read book Ceramic Processing written by Debasish Sarkar and published by CRC Press. This book was released on 2019-06-20 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive account on the manufacturing techniques to synchronize the desired properties of both traditional and advanced ceramics. Offers exclusive and up to date information on industrial ceramic processing equipment and approaches and discusses actual industrial practices taking a product-oriented approach It should serve as a text to answer the processing of ceramics and achieve targeted product in industrial environment.
Download or read book An Introduction to Rheology written by Howard A. Barnes and published by Elsevier. This book was released on 1989-06 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text introduces the subject of rheology in terms understandable to non-experts and describes the application of rheological principles to many industrial products and processes.
Download or read book Journal of Rheology written by and published by . This book was released on 1995 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Rheology Handbook written by Thomas G. Mezger and published by Vincentz Network GmbH & Co KG. This book was released on 2006 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry and Physics of Coatings written by Alastair Marrion and published by Royal Society of Chemistry. This book was released on 2004 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book stresses important physical phenomena such as rheology, film formation, and mechanical properties, their exploitation in paint, and the economic and legislative background against which coatings technology is tested. Attention is given to the chemistry of the polymers, pigments, and solvents that compose typical coatings, and the complex 'science and art' of formulating them effectively. The book also aims to give insights into the commercial application of the chemistries described, and includes a glossary of industry and polymer-related terms.
Download or read book Technological Applications of Dispersions written by Robert B. McKay and published by CRC Press. This book was released on 2020-08-26 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This comprehensive guide illustrates the effects of dispersions in applications, the means necessary to achieve these effects with optical results, and how to overcome or avoid the difficulties encounteredemphasizing the dispersions of solid particles in liquid or solid media."
Download or read book Modern Aspects of Colloidal Dispersions written by Ronald H. Ottewill and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the papers presented at a meeting sponsored by the Colloid and Interface Science Group of the Faraday Division, Royal Society of Chemistry, which was held at Wills Hall, University of Bristol from the 14th - 16th April 1997. The pur pose of the meeting, which was entitled Colloidal Dispersions, was to discuss the subject of concentrated colloidal systems including, dispersions, emulsions and powders, in order to emphasize recent advances in experimental and theoretical understanding of these systems and how these advances could be applied to practical utitisation in the wide range of industries which are involved with colloidal systems. The papers presented at the meeting were given by the principal participants in a 5 year project on Colloid Technology, which started on the 1st August 1992, and was funded by the Department of Trade and Industry (DTI) of the U.K. and a consortium of industries which was composed of ICI, Schlumberger, Unilever and Zeneca. The academic centres involved were, the Universities of Bristol, Cambridge, Edinburgh and Imperial College, London. Each of the papers published in this volume formed the focus for a discussion on that topic so that each subject was discussed in so me depth by the participants. J ean Proctor and Meg Staff have been tremendously helpful as secretaries at Bristol and Cambridge respectively throughout the project. Also, their help with the various meetings and with the production of this volume was invaluable. We thank them most warmly for their very able assistance.
Download or read book Colloidal Suspension Rheology written by Jan Mewis and published by Cambridge University Press. This book was released on 2012 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented in an accessible and introductory manner, this is the first book devoted to the comprehensive study of colloidal suspensions.
Download or read book Particulate Products written by Henk G. Merkus and published by Springer Science & Business Media. This book was released on 2013-11-19 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particulate products make up around 80% of chemical products, from all industry sectors. Examples given in this book include the construction materials, fine ceramics and concrete; the delicacies, chocolate and ice cream; pharmaceutical, powders, medical inhalers and sun screen; liquid and powder paints. Size distribution and the shape of the particles provide for different functionalities in these products. Some functions are general, others specific. General functions are powder flow and require – at the typical particulate concentrations of these products – that the particles cause adequate rheological behavior during processing and/or for product performance. Therefore, this book addresses particle packing as well as its relation to powder flow and rheological behavior. Moreover, general relationships to particle size are discussed for e.g. color and sensorial aspects of particulate products. Product-specific functionalities are often relevant for comparable product groups. Particle size distribution and shape provide, for example, the following functionalities: - dense particle packing in relation to sufficient strength is required in concrete construction, ceramic objects and pharmaceutical tablets - good sensorial properties (mouthfeel) to chocolate and ice cream - effective dissolution, flow and compression properties for pharmaceutical powders - adequate hiding power and effective coloring of paints for protection and the desired esthetical appeal of the objects - adequate protection of our body against sun light by sunscreen - effective particle transport and deposition to desired locations for medical inhalers and powder paints. Adequate particle size distribution, shape and porosity of particulate products have to be achieved in order to reach optimum product performance. This requires adequate management of design and development as well as sufficient knowledge of the underlying principles of physics and chemistry. Moreover, flammability, explosivity and other health hazards from powders, during handling, are taken into account. This is necessary, since great risks may be involved. In all aspects, the most relevant parameters of the size distribution (and particle shape) have to be selected. In this book, experts in the different product fields have contributed to the product chapters. This provides optimum information on what particulate aspects are most relevant for behavior and performance within specified industrial products and how optimum results can be obtained. It differs from other books in the way that the critical aspects of different products are reported, so that similarities and differences can be identified. We trust that this approach will lead to improved optimization in design, development and quality of many particulate products.
