Rheology Applied In Polymer Processing

Explore polymer rheology from an industrial standpoint Presenting state-of-the-art polymer rheology as observed by well-recognized authors, Applied Polymer Rheology: Polymeric Fluids with Industrial Applications is designed to help readers understand the relationship between molecular structure and the flow behavior of polymers. In particular, it focuses on polymeric systems that elicit special attention from industry. Providing a comprehensive overview of the rheological characteristics of polymeric fluids, the book bridges the gap between theory and practice/application, enabling readers to see the connection between molecular structure and the behavior of the polymers studied. Beginning with a discussion of the properties, processability, and processing aids of specific polymers, later chapters examine filled polymers and composites, and the theoretical framework upon which their analysis is based. Various systems containing microstructure are presented subsequently, with the final chapter introducing paste extrusion of polytetrafluoroethylene paste. An invaluable reference guide that covers the literature and vast array of technical approaches to polymer rheology, Applied Polymer Rheology's coverage of polymeric fluids of interest to industry make it an essential resource for plastics, polymer, and chemical engineers, materials scientists, polymer chemists, and polymer physicists to use when interpreting findings and planning experiments.

This book covers a wide range of topics in polymer rheology. These are: • Basic Principles, parameters, systems and applied mathematical models used in the rheological studies. • Melt flow analysis of different non-Newtonian fluids in laminar flow, transition between laminar and turbulent flow and modified Reynolds number. • The effects of different physical and molecular parameters on purely viscous rheological response of polymer melts and solutions. • Principles of rheometery and different types of viscometers and on-line rheometers. • The static and dynamic viscoelastic response of the polymer melts and solutions, viscoelasticity, mechanical models and Boltzmann superposition principle. • Molecular structure – viscoelasticity relationship and linear and non-linear viscoelasticity. • Effects of different processes, materials parameters like temperature, fillers (micro and nano-fillers) and molecular parameters like MW, MWD. • The role of rheology in polymer processing in different equipment. • Modified power law constants and two range power law constants for a large number of polymers, rheology software program in Java, comparison of different polymer rheological models using the rheology software and answers to the problems. The book will be very useful to both undergraduate and postgraduate students, as well as teachers and practicing rheologists.

This Book Covers Wide Range Of Topics In The Polymer Rheology. These Include -The Basic Principles, Parameters, Systems And Applied Mathematical Models Used In The Rheological Studies. The Melt Flow Analysis Of Different Non-Newtonian Fluids In Laminar Flow, Transition Between Laminar And Turbulent Flow And Modified Reynolds Etc. The Effects Of Different Physical And Molecular Parameters On Purely Viscous Rheological Response Of Polymer Melts And Solutions. Principles Of Rheometery And Different Types Viscometers And On-Line Rheometers. The Static And Dynamic Viscoelastic Response Of The Polymer Melts And Solutions, Linear Viscoelasticity. Mechanical Models And Boltzmann Superposition Principle. Molecular Structure - Viscoelasticity Relationship And Linear And Non-Linear Viscoelasticity. A Good Number Of Solved Examples And Exercise Problems.The Book Will Be Of Immense Help To Both Under Graduate And Post-Graduate Students, Teachers, Polymer Engineers And Practicing Rheologists. Content Highlights : - # Preface # Introduction # Rheological Principles # Melt Flow Analysis # Parameters Influencing The Polymer Rheology # Rheometry # Viscoelastic Behaviour # Viscoelastic Functions : Effect Of Various Parameters # Rheology In Polymer And Rubber Processing # References

An Introduction to Polymer Rheology and Processing is a practical desk reference providing an overview of operating principles, data interpretation, and qualitative explanation of the importance and relationship of rheology to polymer processing operations. It covers full-scale processing operations, relating industrial processing operations and design methodology to laboratory-scale testing. Hundreds of design formulas applicable to scaling up the processing behavior of polymeric melts are presented. The book also provides a "working knowledge" description of major rheological test methods useful in product development and includes a useful glossary of polymer and test method/instrumentation definitions. Lavishly illustrated and featuring numerous sample calculations and modeling approaches, An Introduction to Polymer Rheology and Processing is a "must have" book for polymer engineers and rheologists.

This book explores the ways in which melt flow behaviour can be exploited by the plastics engineer and technician for increased efficiency of processing operation, control of end product properties and selection and development of polymers for specific purposes. (reissued with minor corrections 1994)

Experts in rheology and polymer processing present up-to-date, fundamental and applied information on the rheological properties of polymers, in particular those relevant to processing, contributing to the physical understanding and the mathematical modelling of polymer processing sequences. Basic concepts of non-Newtonian fluid mechanics, micro-rheological modelling and constitutive modelling are reviewed, and rheological measurements are described. Topics with practical relevance are debated, such as linear viscoelasticity, converging and diverging flows, and the rheology of multiphase systems. Approximation methods are discussed for the computer modelling of polymer melt flow. Subsequently, polymer processing technologies are studied from both simulation and engineering perspectives. Mixing, crystallization and reactive processing aspects are also included. Audience: An integrated and complete view of polymer processing and rheology, important to institutions and individuals engaged in the characterisation, testing, compounding, modification and processing of polymeric materials. Can also support academic polymer processing engineering programs.

Everything flows, so rheology is a universal science. Even if we set aside claims of such width, there can be no doubt of its importance in polymers. It joins with chemistry in the polymerisation step but polymer engineering is supreme in all the succeeding steps. This is the area concerned with the fabrication of the polymer into articles or components, with their design to meet the needs in service, and with the long and short term performance of the article or component. This is a typical area of professional engineering activity, but one as yet without its proper complement of professional engineers. An understanding of polymer rheology is the key to effective design and material plus process selection, to efficient fabrication, and to satisfactory service, yet few engineers make adequate use of what is known and understood in polymer rheology. Its importance in the flow processes of fabrication is obvious. Less obvious, but equally important, are the rheological phenomena which determine the in-service performance. There is a gap between the polymer rheologist and the polymer engineer which is damaging to both parties and which contributes to a less than satisfactory use of polymers in our society. It is important that this gap be filled and this book makes an attempt to do so. It presents an outline of what is known in a concise and logical fashion. It does this starting from first principles and with the minimum use of complex mathematics.