RHEOLOGY PRINCIPLES MEASUREMENTS AND APPLICATIONS

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Rheology

Author : Christopher W. Macosko
ISBN : UOM:39076001479059
Genre : Science
File Size : 37.68 MB
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Category: Science

Rheology

Author : Aleksandr I͡Akovlevich Malkin
ISBN : 9781895198331
Genre : Technology & Engineering
File Size : 31.3 MB
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There are few comprehensive books on the market on the subject of rheology – the complex science dealing with flow and deformation of matter – and these are several years old. At last there is now a book that explains the meaning of a science that many scientists need to use but only a few can fully grasp. It does so by striking the balance between oversimplification and overload of theory in a very compelling and readable manner. The author's systematic presentation enables the authors to include all components of rheology in one volume. The first four chapters of this book discuss various aspects of theoretical rheology and, by examples of many studies, show how particular theory, model, or equation can be used in solving different problems. The main emphasis is on liquids, but solid materials are discussed in one full chapter as well. Methods of measurement and raw data treatment are included in one large chapter which constitutes more than one quarter of the book. Eight groups of methods are discussed giving many choices for experimentation and guidance on where and how to use them properly. The final chapter shows how to use rheological methods in different groups of products and methods of their manufacture. Usefulness of chemorheological (rheokinetical) measurements is also emphasized. This chapter continues with examples of purposeful applications in practical matters.
Category: Technology & Engineering

Dynamic Mechanical Analysis

Author : Kevin P. Menard
ISBN : 1420053132
Genre : Technology & Engineering
File Size : 35.69 MB
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Dynamic mechanical analysis (DMA) has left the domain of the rheologist and has become a prevalent tool in the analytical laboratory. However, information on the use of this important tool is still scattered among a range of books and articles. Novices in the field have to dig through thermal analysis, rheology, and materials texts just to find the basics. Updated with new material, expanded practical explanations, and new applications, Dynamic Mechanical Analysis, Second Edition continues to give chemists, engineers, and materials scientists a starting point for applying DMA to their individual fields. It imparts a clear understanding of how DMA works, its advantages, and possible limitations. Additional topics include stress/strain, data handling, experimental technology, test methods, and data analysis. One of the only references dedicated to DMA, this accessible and easy-to-read guide gathers the most pertinent information available on this important technique.
Category: Technology & Engineering

Rheology For Chemists

Author : James William Goodwin
ISBN : 9780854048397
Genre : Science
File Size : 70.34 MB
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Rheology is primarily concerned with materials: scientific, engineering and everyday products whose mechanical behaviour cannot be described using classical theories. From biological to geological systems, the key to understanding the viscous and elastic behaviour firmly rests in the relationship between the interactions between atoms and molecules and how this controls the structure, and ultimately the physical and mechanical properties. Rheology for Chemists An Introduction takes the reader through the range of rheological ideas without the use of the complex mathematics. The book gives particular emphasis on the temporal behaviour and microstructural aspects of materials, and is detailed in scope of reference. An excellent introduction to the newer scientific areas of soft matter and complex fluid research, the second edition also refers to system dimension and the maturing of the instrumentation market. This book is a valuable resource for practitioners working in the field, and offers a comprehensive introduction for graduate and post graduates. Extracts from reviews of 1st Edition: ..". well-suited for self-study by research workers and technologists, who, confronted with technical problems in this area, would like a straightforward introduction to the subject of rheology." Chemical Educator, ..". full of valuable insights and up-to-date information." Chemistry World
Category: Science

Technische Rheologie In Beispielen Und Berechnungen

Author : Rüdiger Worthoff
ISBN : 9783527675562
Genre : Technology & Engineering
File Size : 55.67 MB
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In der chemisch-technischen Industrie werden zunehmend Stoffe verarbeitet, die besondere viskoelastische Eigenschaften aufweisen und sich gegenüber "normalen" Newtonschen Flüssigkeiten außergewöhnlich verhalten. Hierzu gehören u.a. Lösungen und Schmelzen polymerer Medien, hochmolekulare Öle und verschiedene Suspensionen. Diese Substanzen stellen oft eine Herausforderung für die Förderung und Verarbeitung in Apparaten und Anlagen dar. Mit diesem Praktikerbuch gibt Rüdiger Worthoff dem Leser ein Werkzeug an die Hand, das es ihm ermöglicht, das Stoffverhalten in der Praxis mittels mathematischer Berechnungen einzuschätzen. Nach einer kurzen Einführung der theoretischen Grundlagen werden anhand von konkreten Fragen und Antworten die Probleme der modernen technischen Rheologie und deren Berechenbarkeit erörtert. Das Kapitel Rheometrie behandelt die Messtechniken und Bestimmung rheologischer Parameter. Die anderen Kapitel widmen sich den Strömungen in verschiedenen Geometrien. Die Vorstellung thermischer Effekte und Wärmeübertragungsprozesse in der Rheologie runden den Inhalt ab. Ein Glossar am Buchende sowie Verständnisfragen und Lösungen zu jedem Kapitel helfen das Gelernte zu vertiefen. Unentbehrlich für jeden Chemieingenieur, Verfahrenstechniker und Kunststofftechnologen in Studium und Beruf.
Category: Technology & Engineering

Practical Food Rheology

Author : Ian T. Norton
ISBN : 1444391054
Genre : Technology & Engineering
File Size : 38.21 MB
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Rheology is fundamentally important in food manufacturing in two major senses. Understanding the way in which a substance moves and behaves is essential in order to be able to transport and mix it during processing. Secondly, the rheology of a product dictates much of the consumer experience, e.g. in relation to texture and mouthfeel. This book doesn’t overwhelm the reader with complex mathematical equations but takes a simple and practically-focused approach, interpreting the implications of rheological data for use in different food systems. Through this approach industry-based food developers / rheologists, students, and academics are given clear, concise interpretation of rheological data which directly relates to actual perceived functionality in the food. The functionality may relate to texture, structure and mouthfeel, and may result as a function of temperature, pH, flocculation, concentration effects, and mixing. The interpretative view is based on the principle that the food rheologist will produce a graph, for example of viscosity or gelation profiling, and then have to extract a practical meaning from it. For example, if viscosity falls with time as a function of pH, this knowledge can be used to tell the customer that the viscosity can be followed with just a pH meter and a stopwatch. Rheological measurements have shown that once the pH has dropped 1 unit after 10 minutes, the viscosity has been halved. This is the type of practical and valuable information for customers of the industrial food rheologist which the book will enable readers to access. Key features: A uniquely practical approach to the often difficult science of food rheology Includes chapters introducing the basics of food rheology before moving on to how data can be usefully and easily interpreted by the food scientist Can be used as a teaching aid on academic or industry-based courses
Category: Technology & Engineering

Foams

Author : Robert K. Prud'homme
ISBN : 0824793951
Genre : Science
File Size : 78.78 MB
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This volume discusses the physics and physical processes of foam and foaming. It delineates various measurement techniques for characterizing foams and foam properties as well as the chemistry and application of foams. The use of foams in the textile industry, personal care products, enhanced oil recovery, firefighting and mineral floatation are highlighted, and the connection between the microstructure and physical properties of foam are detailed. Coverage includes nonaqueous foams and silicone antifoams, and more.
Category: Science

Non Newtonian Flow In The Process Industries

Author : R. P. Chhabra
ISBN : 0750637706
Genre : Technology & Engineering
File Size : 71.33 MB
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Non-Newtonian materials are encountered in virtually all of the chemical and process industries and a full understanding of their nature and flow characteristics is an essential requirement for engineers and scientists involved in their formulation and handling. This book will bridge the gap between much of the highly theoretical and mathematically complex work of the rheologist and the practical needs of those who have to design and operate plants in which these materials are handled and processed. At the same time, numerous references are included for the benefit of those who need to delve more deeply into the subject. The starting point for any work on non-newtonian fluids is their characterisation over the range of conditions to which they are likely to be subjected during manufacture or utilisation, and this topic is treated early on in the book in a chapter commissioned from an expert in the field of rheological measurements. Coverage of topics is extensive and this book offers a unique and rich selection of material including the flow of single phase and multiphase mixtures in pipes, in packed and fluidised bed systems, heat and mass transfer in boundary layers and in simple duct flows, and mixing etc. An important and novel feature of the book is the inclusion of a wide selection of worked examples to illustrate the methods of calculation. It also incorporates a large selection of problems for the reader to tackle himself.
Category: Technology & Engineering

Lebensmittelphysik

Author : L.O. Figura
ISBN : 9783540349907
Genre : Technology & Engineering
File Size : 51.73 MB
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Die Lebensmittelphysik befasst sich mit den physikalischen Eigenschaften der Lebensmittel und deren Erfassung. Die physikalischen Eigenschaften von Lebensmitteln spielen überall dort eine wesentliche Rolle, wo moderne lebensmitteltechnologische Verfahren für die Gewinnung der Rohstoffe oder die Herstellung eines Lebensmittels angewandt werden. Die Bestimmung physikalischer Größen von Lebensmitteln und Bedarfsgegenständen sind aus der Planung, Steuerung und Automatisierung der Herstellungsprozesse in der Lebensmittel-, Pharma- und Kosmetikindustrie und angrenzenden Bereichen nicht mehr wegzudenken. Neben der chemischen Qualitätskontrolle spielt die Bestimmung physikalischer Eigenschaften darüber hinaus eine wichtige Rolle bei der Bestimmung und Sicherung der Qualität unserer Lebensmittel. Der Konsument fordert zunehmend "weniger Chemie" in der Lebensmittelproduktion und große Bereiche der Lebensmittelindustrie werden diesen Wünschen in steigendem Maße entgegenkommen müssen, indem sie moderne physikalische Verfahren in der Produktion einsetzen. Auch hierfür ist ein grundlegendes Verständnis der physikalischen Eigenschaften von Lebensmitteln und den Möglichkeiten und Grenzen ihrer messtechnischen Erfassung eine unabdingbare Voraussetzung. Dieses Buch beschreibt die Lebensmittelphysik von Grund auf und orientiert sich hierbei ausschließlich an den Erfordernissen der Lebensmittelpraxis, ohne auf die wichtigen Grundlagen zu verzichten. Das Buch ist daher für Studenten der Lebensmittelchemie und -technologie an Universitäten und Fachhochschulen eine wichtige Quelle für die zukünftige Ausbildung. Auch Ingenieure, Technologen und Techniker in der Lebensmittelindustrie werden dieses Buch benutzen, um ihre Kenntnisse zu vertiefen oder grundlegendes Verständnis für neue physikalische Verfahren zu erwerben.
Category: Technology & Engineering