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Rheology of Polymeric Systems

Rheology of Polymeric Systems
Principles and Applications

by Pierre J. Carreau,Daniel De Kee,R. P. Chhabra

  • Publisher : Hanser Gardner Publications
  • Release : 1997-01-01
  • Pages : 520
  • ISBN : 9781569902189
  • Language : En, Es, Fr & De
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This book bridges the gap between the fundamental concepts of rheology and its applications. A balanced overview of the principles is accompanied by numerous examples from the industrial practice, thus providing an engineering approach to problem solving.

Rheology of Filled Polymer Systems

Rheology of Filled Polymer Systems
A Book

by A.V. Shenoy

  • Publisher : Springer Science & Business Media
  • Release : 2013-03-09
  • Pages : 476
  • ISBN : 9401592136
  • Language : En, Es, Fr & De
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Polymerie materials have been replacing other conventional materials like metals, glass and wood in a number of applications. The use of various types of fillers incorporated into the polymer has become quite common as a means of reducing cost and to impart certain desirable mechanieal, thermal, electrieal and magnetic properties to the polymers. Oue to the energy crisis and high priees of petrochemieals, there has been a greater demand to use more and more fillers to cheapen the polymerie materials while maintaining and/or improving their properties. The advantages that filled polymer systems have to offer are normally offset to some extent by the increased complexity in the rheological behavior that is introduced by the inclusion of the fillers. Usually when the use of fillers is considered, a compromise has to be made between the improved mechanieal properties in the solid state, the increased difficulty in melt processing, the problem of achieving uniform dispersion of the filler in the polymer matrix and the economics of the process due to the added step of compounding. It has been recognized that addition of filler to the polymer brings a change in processing behavior. The presence of the filler increases the melt viscosity leading to increases in the pressure drop across the die but gives rise to less die swell due to decreased melt elasticity.

Rheology of Polymeric Systems

Rheology of Polymeric Systems
Principles and Applications

by Pierre J. Carreau,Daniel C. R. De Kee,Raj P. Chhabra

  • Publisher : Unknown Publisher
  • Release : 2021-08-13
  • Pages : 700
  • ISBN : 9781569907221
  • Language : En, Es, Fr & De
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Polymer Rheology: Theory and Practice

Polymer Rheology: Theory and Practice
A Book

by Y.G. Yanovsky

  • Publisher : Springer Science & Business Media
  • Release : 2012-12-06
  • Pages : 298
  • ISBN : 9401121168
  • Language : En, Es, Fr & De
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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.

Rheology of Polymer Systems

Rheology of Polymer Systems
Programme Booklet

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1999
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Rheology and Processing of Medical Grade Polymeric Systems

Rheology and Processing of Medical Grade Polymeric Systems
A Book

by Univerzita Tomáše Bati ve Zlíně. Technologická fakulta

  • Publisher : Unknown Publisher
  • Release : 2010
  • Pages : 25
  • ISBN : 9788073189648
  • Language : En, Es, Fr & De
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Rheology of Polymer Systems

Rheology of Polymer Systems
A Book

by Anonim

  • Publisher : Wiley-VCH
  • Release : 2000-12-07
  • Pages : 192
  • ISBN : 9783527301379
  • Language : En, Es, Fr & De
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This conference on the Rheology of Polymer Systems was held at the Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic in Prague from 19-22nd July 1999, as part of the Prague Meetings on Macromolecules sponsored, as usual, by IUPAC. The topics covered included relations between rheological properties and structure of molten polymer systems, advanced rheometry and rheological characterization, interrelations between rheological data measured in various flow fields and progress in the description of complex flow of molten polymer systems. The papers within this volume of Macromolecular Symposia cover a broad range of topics typical of the symposium.

Multiphase Flow in Polymer Processing

Multiphase Flow in Polymer Processing
A Book

by Chang Han

  • Publisher : Elsevier
  • Release : 2012-12-02
  • Pages : 475
  • ISBN : 0323149022
  • Language : En, Es, Fr & De
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Multiphase Flow in Polymer Processing focuses on dispersed and stratified multiphase flow in polymer processing. This book explores the rheological behavior of multiphase (or multicomponent) polymeric systems as they are involved in various fabrication operations. It also outlines the importance of the morphological states of multiphase polymeric systems to explain the systems, rheological behavior in the fluid state, and mechanical behavior in the solid state. This monograph consists of eight chapters divided into two parts. After discussing dispersed and stratified multiphase flow in polymer processing, it introduces the reader to the fundamentals of rheology. The following chapters focus on the rheological behavior of particulate-filled polymeric systems and heterogeneous polymeric systems; the phenomenon of droplet breakup in dispersed flow; and gas-charged polymeric systems. The role of the discrete phase (that is, solid particles, liquid droplets, gas bubbles) in determining the bulk rheological properties of the multiphase system is highlighted, along with some representative polymer processing operations (namely, fiber spinning and injection molding) of the multiphase (or multicomponent) polymeric systems. Coextrusion in cylindrical, rectangular, and annular dies is also considered. The final chapter is devoted to the phenomenon of interfacial instability in coextrusion. This text will be a useful resource for chemists, chemical engineers, and those in the polymer processing industry.

Applied Polymer Rheology

Applied Polymer Rheology
Polymeric Fluids with Industrial Applications

by Marianna Kontopoulou

  • Publisher : John Wiley & Sons
  • Release : 2011-11-22
  • Pages : 354
  • ISBN : 047041670X
  • Language : En, Es, Fr & De
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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.

Rheology of Dispersive Polymeric Systems

Rheology of Dispersive Polymeric Systems
A Book

by Univerzita Tomáše Bati ve Zlíně. Technologická fakulta

  • Publisher : Unknown Publisher
  • Release : 2006
  • Pages : 46
  • ISBN : 9788073184933
  • Language : En, Es, Fr & De
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Rheological Properties of Liquid Crystal Polymeric Systems

Rheological Properties of Liquid Crystal Polymeric Systems
A Book

by V. G. Kulichikhin,Aleksandr I︠A︡kovlevich Malkin,S. P. Pankov

  • Publisher : Unknown Publisher
  • Release : 1984
  • Pages : 34
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Physicochemical and Rheological Properties of Some Aqueously Dispersed Polymeric Systems

Physicochemical and Rheological Properties of Some Aqueously Dispersed Polymeric Systems
A Book

by Jacqueline Anne Stile

  • Publisher : Unknown Publisher
  • Release : 1983
  • Pages : 638
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The Rheology of Linear-gel Polymer Systems

The Rheology of Linear-gel Polymer Systems
A Book

by Stephen Louis Rosen

  • Publisher : Unknown Publisher
  • Release : 1964
  • Pages : 346
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Fluctuation Theorems and Work Relations for Single Polymer Rheology

Fluctuation Theorems and Work Relations for Single Polymer Rheology
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2014
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Applied Polymer Rheology

Applied Polymer Rheology
Polymeric Fluids with Industrial Applications

by Marianna Kontopoulou

  • Publisher : John Wiley & Sons
  • Release : 2011-10-24
  • Pages : 320
  • ISBN : 1118140605
  • Language : En, Es, Fr & De
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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.

Effects of Rheology Modifiers on Polymer Systems, a Thesis

Effects of Rheology Modifiers on Polymer Systems, a Thesis
A Book

by Eerik Maandi

  • Publisher : Unknown Publisher
  • Release : 1995
  • Pages : 72
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Modeling of Rheological Properties for Entangled Polymer Systems

Modeling of Rheological Properties for Entangled Polymer Systems
A Book

by Nilanjana Banerjee

  • Publisher : Unknown Publisher
  • Release : 2016
  • Pages : 219
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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"The study of entangled polymer rheology both in the field of medicine and polymer processing has their major importance. Mechanical properties of biomolecules are studied in order to better understand cellular behavior. Similarly, industrial processing of polymers needs thorough understanding of rheology so as to improve process techniques. Work in this dissertation has been organized into three major sections. Firstly, numerical/analytical models are reviewed for describing rheological properties and mechanical behaviors of cytoskeleton. The cytoskeleton models are classified into categories according to the length scales of the phenomena of interest. The main principles and characteristics of each model are summarized and discussed by comparison with each other, thus providing a systematic understanding of biopolymer network modeling. Secondly, a new constitutive "toy" Mead-Banerjee-Park (MBP) model is developed for monodisperse entangled polymer systems, by introducing the idea of a configuration dependent friction coefficient (CDFC) and entanglement dynamics (ED) into the MLD "toy" model. The model is tested against experimental data in steady and transient extensional and shear flows. The model simultaneously captures the monotonic thinning of the extensional flow curve of polystyrene (PS) melts and the extension hardening found in PS solutions. Thirdly, the monodisperse MBP model is accordingly modified into polydisperse MBP "toy" constitutive model to predict the nonlinear viscoelastic material properties of model polydisperse systems. The polydisperse MBP toy model accurately predicts the material properties in the forward direction for transient uniaxial extension and transient shear flow"--Abstract, page iv.

Layered Polymeric Systems

Layered Polymeric Systems
New Processing Methods and Novel Mechanical Design in Extensional Rheology

by Patrick James Harris,OhioLINK Electronic Theses and Dissertations Center

  • Publisher : Unknown Publisher
  • Release : 2015
  • Pages : 222
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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This dissertation presents novel mechanical designs and advances in both polymer layer multiplication and extensional rheology. In Part I, advances in polymer layer multiplication include the investigation of typical thermoplastic layer multiplication extrusion dies and the redesign of such by means of experimental and computational investigation. Results show a decrease in flow instabilities including viscous encapsulation and elastic instabilities. Similarly, an innovative layer multiplication system for highly filled and elastic rubber compounds is presented. Both of these novel systems for thermoplastic and thermosetting polymer systems are validated and understood by numerical methods using ANSYS Polyflow and CFD-Post. These advances in multilayer coextrusion allow for layering of new families of rheologically complex and as well mismatched materials, thus widening the processing capabilities at the Center for Layered Polymeric Systems. In Part II, advances in extensional rheology include a newly developed extensional rheometer for achieving high Henkystrains. The Meissner Extensional Rheometer Accessory or MERA is limited in strain only by sample rupture. Experimental validation is performed using two materials, a styrene-butadiene rubber (SBR) and a linear polystyrene (PS); the results are compared with those obtained using the well-known SER. Due to its design, it was possible to achieve homogeneous extensional flow up to unprecedented real Hencky strains in excess of 8. The second half of Part II covers a rheological understanding behind the mechanism of sharkskin, a melt fracture instability during extrusion. Solution-styrene-butadiene-styrene blended with various polybutadienes is studied. Experimental extrusion results show a behavior difference depending on the molecular architecture of the latter, polybutadiene. Extensional rheological techniques are used to investigate the behavior. Results show a higher sensitivity to stress relaxation after a step-strain rather than typical stress growth coefficients in extension.

Rheology for Polymer Melt Processing

Rheology for Polymer Melt Processing
A Book

by J.-M. Piau,J.-F. Agassant

  • Publisher : Elsevier
  • Release : 1996-10-10
  • Pages : 423
  • ISBN : 9780080540566
  • Language : En, Es, Fr & De
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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.

Introduction to Polymer Rheology

Introduction to Polymer Rheology
A Book

by Montgomery T. Shaw

  • Publisher : John Wiley & Sons
  • Release : 2012-01-03
  • Pages : 395
  • ISBN : 0470388447
  • Language : En, Es, Fr & De
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"Providing new students and practitioners with an easy-to-understand introduction to the theory and practice an often complicated subject, Introduction to Polymer Rheology incorporates worked problems and problems with appended answers to provide opportunities for review and further learning of more advanced concepts. By limiting the use of mathematics within an approachable format, this introductory overview ensures practicing scientists and engineers understand the concepts underlying the flow behavior of polymer melts, solutions, and suspensions, and are able to interpret experimental data correctly and provide additional insight on a process"--