Elastic Behavior Of Polymer Melts Rheology And Processing

Author : Helmut Münstedt
Publisher : Carl Hanser Verlag GmbH Co KG
Page : 296 pages
File Size : 49,8 Mb
Release : 2019-07-08
Category : Technology & Engineering
ISBN : 9781569907559

Get Book

Elastic Behavior of Polymer Melts by Helmut Münstedt Pdf

Understanding the elastic properties of polymer melts is necessary for ensuring successful polymer processing and thus producing high-quality plastic parts. This unique book is the first to focus on this important topic. Starting with the molecular origin of elastic behavior and an explanation of the physical quantities involved, experimental methods and the dependence of elastic behavior on experimental parameters are then presented. Elastic properties of filled and unfilled systems are compared directly, and polymer blends are also considered. Elastic effects in various applications are included, such as in extrudate swell, internal stresses, and shrink films, to illustrate the importance of this field in the plastics processing industry.

Author : F N Cogswell
Publisher : Elsevier
Page : 195 pages
File Size : 45,8 Mb
Release : 1981-01-01
Category : Science
ISBN : 9780857092984

Get Book

Polymer Melt Rheology by F N Cogswell Pdf

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)

Author : Nicholas P. Cheremisinoff
Publisher : CRC Press
Page : 356 pages
File Size : 53,8 Mb
Release : 2018-01-18
Category : Science
ISBN : 9781351090728

Get Book

Introduction to Polymer Rheology and Processing by Nicholas P. Cheremisinoff Pdf

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.

Author : J. A. Brydson
Publisher : Unknown
Page : 250 pages
File Size : 54,6 Mb
Release : 1981
Category : Polymer melting
ISBN : STANFORD:36105032693934

Get Book

Flow Properties of Polymer Melts by J. A. Brydson Pdf

Author : Montgomery T. Shaw
Publisher : John Wiley & Sons
Page : 410 pages
File Size : 53,8 Mb
Release : 2012-01-03
Category : Technology & Engineering
ISBN : 9780470388440

Get Book

Introduction to Polymer Rheology by Montgomery T. Shaw Pdf

An introduction to the rheology of polymers Designed for practicing scientists and engineers interested in polymer rheology science, education, consulting, or research and development, Introduction to Polymer Rheology is a comprehensive yet accessible guide to the study of the deformation and flow of matter under applied stress. Often considered a complicated topic for beginners, the book makes grasping the fundamentals of polymer rheology easy by presenting information in an approachable way and limiting the use of complex mathematics. By doing so, this introductory overview provides readers with easy access to the key concepts underlying the flow behavior of polymer melts, solutions, and suspensions. Incorporating sample problems that are worked through and explained on the page, as well as numerous practice problems to gauge learning comprehension, the book prepares new students and practitioners for moving on to more advanced concepts. Comprising twelve chapters, the book covers stress, velocity and rate of deformation, the relationship between stress and rate of deformation (Newtonian fluid), generalized Newtonian fluids, normal stresses and elastic behavior, experimental methods, small and large strain, the molecular origins of rheological behavior, elementary polymer processing concepts, quality control in rheology, and the flow of modified polymers and those with supermolecular structure. The essential reference for accurately interpreting polymer rheology data, Introduction to Polymer Rheology provides readers with an elementary understanding of the key issues and modern approaches to resolving problems in the field.

Author : J.-M. Piau,J.-F. Agassant
Publisher : Elsevier
Page : 423 pages
File Size : 46,8 Mb
Release : 1996-10-10
Category : Science
ISBN : 0080540562

Get Book

Rheology for Polymer Melt Processing by J.-M. Piau,J.-F. Agassant Pdf

This book presents the main results obtained by different laboratories involved in the research group Rheology for polymer melt processing which is associated with French universities, schools of engineering, and the CNRS (Centre National de la Recherche Scientifique - France). The group comprises some 15 research laboratories of varied disciplines (chemistry, physics, material sciences, mechanics, mathematics), but with a common challenge viz. to enhance the understanding of the relationships between macromolecular species, their rheology and their processing. Some crucial issues of polymer science have been addressed: correlation of viscoelastic macroscopic bulk property measurements and models, slip at the wall, extrusion defects, correlation between numerical flow simulations and experiments. Features of the book: • The book is unique in that it allows one to grasp the key issues in polymer rheology and processing at once through a series of detailed state-of-the-art contributions, which were previously scattered throughout the literature. • Each paper was reviewed by experts and the book editors and some coordination was established in order to achieve a readable and easy access style. • Papers have been grouped in sections covering successively: Molecular dynamics, Constitutive equations and numerical modelling, Simple and complex flows. • Each paper can be read independently. Since the book is intended as an introduction to the main topics in polymer processing, it will be of interest to graduate students as well as to scientists in academic and industrial laboratories.

Author : Chang Dae Han
Publisher : Unknown
Page : 392 pages
File Size : 45,8 Mb
Release : 1976
Category : Technology & Engineering
ISBN : UOM:39015020768910

Get Book

Rheology in Polymer Processing by Chang Dae Han Pdf

Author : P. Prentice
Publisher : iSmithers Rapra Publishing
Page : 136 pages
File Size : 53,9 Mb
Release : 1995
Category : Technology & Engineering
ISBN : 1859570534

Get Book

Rheology and Its Role in Plastics Processing by P. Prentice Pdf

This review encompasses fundamental principles and rheological equations of state, polymer melt rheology (shear and extensional flow, viscoelasticity, die swell and melt fracture) and rheological c094 techniques. It describes the main plastics processing techniques, and explains the influence of polymer melt rheology upon their operation. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database provides useful references for further reading.

Author : Y.G. Yanovsky
Publisher : Springer Science & Business Media
Page : 309 pages
File Size : 46,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401121163

Get Book

Polymer Rheology: Theory and Practice by Y.G. Yanovsky Pdf

The present book is devoted to a rapidly developing field of science which studies the behavior of viscoelastic materials under the influence of deformation~the rheology of polymers. Rheology has long been treated as the theoretical foundation of polymer processing, and from this standpoint it is difficult to overesti mate its importance in practice. Rheology plays an important role in developing our ideas on the nature of viscoelastic behavior in connection with the structural features of polymers and composites based on them. This expands the possibilities of employing rheological methods to characterize a variety of materials and greatly magnifies the interest in this field of research. The rheological properties of polymer systems are studied experimen tally, chiefly under conditions of shear and tensile strains. One explana tion is that many aspects of polymer material processing are associated with the stretching of melts or a combination of shear and tensile strains. In scientific investigations, either periodic or continuous conditions of shear deformation are employed. Each mode provides widespread infor mation. In periodic deformation, most attention is generally given to conditions with low deformation amplitudes that do not alter the structure of the polymer system during an experiment (the region of linear deformation conditions). Here the viscoelastic parameters are generally determined with respect to the frequency. Continuous deforma tion involves considerable strains, and may be attended by significant reversible and irreversible changes in the structure of a polymer.

Author : J.A. Covas,J.F. Agassant,A.C. Diogo,J. Vlachopoulos,K. Walters
Publisher : Springer Science & Business Media
Page : 470 pages
File Size : 52,8 Mb
Release : 2013-04-17
Category : Technology & Engineering
ISBN : 9789401585712

Get Book

Rheological Fundamentals of Polymer Processing by J.A. Covas,J.F. Agassant,A.C. Diogo,J. Vlachopoulos,K. Walters Pdf

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.

Author : John M Dealy,Jian Wang
Publisher : Springer Science & Business Media
Page : 311 pages
File Size : 52,8 Mb
Release : 2013-05-14
Category : Technology & Engineering
ISBN : 9789400763951

Get Book

Melt Rheology and its Applications in the Plastics Industry by John M Dealy,Jian Wang Pdf

This is the second edition of Melt Rheology and its Role in Plastics Processing, although the title has changed to reflect its broadened scope. Advances in the recent years in rheometer technology and polymer science have greatly enhanced the usefulness of rheology in the plastics industry. It is now possible to design polymers having specific molecular structures and to predict the flow properties of melts having those structures. In addition, rheological properties now provide more precise information about molecular structure. This book provides all the information that is needed for the intelligent application of rheology in the development of new polymers, the determination of molecular structure and the correlation of processability with laboratory test data. Theory and equations are limited to what is essential for the use of rheology in the characterization of polymers, the development of new plastics materials and the prediction of plastics processing behavior. The emphasis is on information that will be of direct use to practitioners. Extensive references are provided for those wishing to pursue certain issues in greater depth. While the primary audience is applied polymer scientists and plastics engineers, the book will also be of use to postgraduate students in polymer science and engineering and as a text for a graduate course.

Author : K. Wissbrun
Publisher : Springer Science & Business Media
Page : 684 pages
File Size : 50,5 Mb
Release : 2013-11-27
Category : Science
ISBN : 9781461597384

Get Book

Melt Rheology and Its Role in Plastics Processing by K. Wissbrun Pdf

This book is designed to fulfill a dual role. On the one hand it provides a description of the rheological behavior of molten poly mers. On the other, it presents the role of rheology in melt processing operations. The account of rheology emphasises the underlying principles and presents results, but not detailed deriva tions of equations. The processing operations are described qualita tively, and wherever possible the role of rheology is discussed quantitatively. Little emphasis is given to non-rheological aspects of processes, for example, the design of machinery. The audience for which the book is intended is also dual in It includes scientists and engineers whose work in the nature. plastics industry requires some knowledge of aspects of rheology. Examples are the polymer synthetic chemist who is concerned with how a change in molecular weight will affect the melt viscosity and the extrusion engineer who needs to know the effects of a change in molecular weight distribution that might result from thermal degra dation. The audience also includes post-graduate students in polymer science and engineering who wish to acquire a more extensive background in rheology and perhaps become specialists in this area. Especially for the latter audience, references are given to more detailed accounts of specialized topics, such as constitutive relations and process simulations. Thus, the book could serve as a textbook for a graduate level course in polymer rheology, and it has been used for this purpose.

Author : R.S. Lenk
Publisher : Springer Science & Business Media
Page : 380 pages
File Size : 40,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401096669

Get Book

Polymer Rheology by R.S. Lenk Pdf

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.

Author : A.A. Collyer,L.A. Utracki
Publisher : Springer Science & Business Media
Page : 494 pages
File Size : 41,7 Mb
Release : 1990-10-31
Category : Technology & Engineering
ISBN : 1851665579

Get Book

Polymer Rheology and Processing by A.A. Collyer,L.A. Utracki Pdf

Author : Lawrence E. Nielsen
Publisher : Unknown
Page : 222 pages
File Size : 48,5 Mb
Release : 1977
Category : Technology & Engineering
ISBN : UOM:39015040319769

Get Book

Polymer Rheology by Lawrence E. Nielsen Pdf