Viscoelastic Properties Of Polymers

Viscoelastic Properties of Polymers PDF
Author: John D. Ferry
Publisher: John Wiley & Sons
ISBN: 9780471048947
Size: 39.69 MB
Format: PDF, ePub, Docs
Category : Technology & Engineering
Languages : en
Pages : 672
View: 2494

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Viscoelastic behavior reflects the combined viscous and elastic responses, under mechanical stress, of materials which are intermediate between liquids and solids in character. Polymers the basic materials of the rubber and plastic industries and important to the textile, petroleum, automobile, paper, and pharmaceutical industries as well exhibit viscoelasticity to a pronounced degree. Their viscoelastic properties determine the mechanical performance of the final products of these industries, and also the success of processing methods at intermediate stages of production. Viscoelastic Properties of Polymers examines, in detail, the effects of the many variables on which the basic viscoelastic properties depend. These include temperature, pressure, and time; polymer chemical composition, molecular weight and weight distribution, branching and crystallinity; dilution with solvents or plasticizers; and mixture with other materials to form composite systems. With guidance by molecular theory, the dependence of viscoelastic properties on these variables can be simplified by introducing certain ancillary concepts such as the fractional free volume, the monomeric friction coefficient, and the spacing between entanglement loci, to provide a qualitative understanding and in many cases a quantitative prediction of how to achieve desired results. The phenomenological theory of viscoelasticity which permits interrelation of the results of different types of experiments is presented first, with many useful approximation procedures for calculations given. A wide variety of experimental methods is then described, with critical evaluation of their applicability to polymeric materials of different consistencies and in different regions of the time scale (or, for oscillating deformations, the frequency scale). A review of the present state of molecular theory follows, so that viscoelasticity can be related to the motions of flexible polymer molecules and their entanglements and network junctions. The dependence of viscoestic properties on temperature and pressure, and its descriptions using reduced variables, are discussed in detail. Several chapters are then devoted to the dependence of viscoelastic properties on chemical composition, molecular weight, presence of diluents, and other features, for several characteristic classes of polymer materials. Finally, a few examples are given to illustrate the many potential applications of these principles to practical problems in the processing and use of rubbers, plastics, and fibers, and in the control of vibration and noise. The third edition has been brought up to date to reflect the important developments, in a decade of exceptionally active research, which have led to a wider use of polymers, and a wider recognition of the importance and range of application of viscoelastic properties. Additional data have been incorporated, and the book s chapters on dilute solutions, theory of undiluted polymers, plateau and terminal zones, cross-linked polymers, and concentrated solutions have been extensively rewritten to take into account new theories and new experimental results. Technical managers and research workers in the wide range of industries in which polymers play an important role will find that the book provides basic information for practical applications, and graduate students in chemistry and engineering will find, in its illustrations with real data and real numbers, an accessible introduction to the principles of viscoelasticity.

Physical Properties Of Polymers

Physical Properties of Polymers PDF
Author: James Mark
Publisher: Cambridge University Press
ISBN: 9780521530187
Size: 43.83 MB
Format: PDF, ePub
Category : Science
Languages : en
Pages : 519
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Low Temperature Properties Of Polymers

Low Temperature Properties of Polymers PDF
Author: I. Perepechko
Publisher: Elsevier
ISBN: 1483158004
Size: 61.84 MB
Format: PDF, Mobi
Category : Technology & Engineering
Languages : en
Pages : 310
View: 2569

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Low-Temperature Properties of Polymers systematizes the available materials on polymers. This book also describes the main trends in the investigation of interrelated properties of polymers, such as thermal (heat capacity, thermal conductivity, and thermal expansion), acoustical, dielectric, and viscoelastic, which maintain the physical properties of polymers at low temperatures. Comprised of nine chapters, this book first covers heat capacity of polymers at low temperature, and then tackles thermal conductivity of polymers at low temperatures. Chapter 3 discusses thermal expansion of polymers at low temperatures, and Chapter 4 tackles electrical properties of polymers at low temperatures. The fifth chapter covers nuclear magnetic resonance in polymers at low temperature, while the succeeding chapter encompasses dynamic mechanical properties of polymers at low temperatures. Chapter 7 concerns itself with the acoustical properties of polymers at low temperatures, while the succeeding chapter covers viscoelastic parameters of polymers at low temperatures. The closing chapter covers how to determine the thermophysical characteristics of polymers by acoustic measurement at helium temperature. This book will be of great interest to researchers or professionals whose line of work involves the manipulation and understanding of the properties of polymers.

Polymer Viscoelasticity

Polymer Viscoelasticity PDF
Author: Evaristo Riande
Publisher: CRC Press
ISBN: 9780824779047
Size: 43.28 MB
Format: PDF, ePub, Docs
Category : Technology & Engineering
Languages : en
Pages : 904
View: 3124

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Showcasing vital engineering applications to transient and dynamic pertubations of macromolecular materials, structural recovery's role in mechanical responses in the glassy state, and viscoelastic parameters that condition the non-Newtonian behaviour of polymers, this work presents a systematic account of the responses of macromolecular materials to mechanical force fields. It focuses on the most important features of the linear stress-strain relationships for ideal solids and liquids.

Physicochemical Behavior And Supramolecular Organization Of Polymers

Physicochemical Behavior and Supramolecular Organization of Polymers PDF
Author: Ligia Gargallo
Publisher: Springer Science & Business Media
ISBN: 1402093721
Size: 40.22 MB
Format: PDF, ePub, Mobi
Category : Science
Languages : en
Pages : 242
View: 2660

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As the title suggests, this monograph features the physicochemical behavior and supramolecular organization of polymers. The book consists of four chapters dealing with solution properties, viscoelastic behavior, physicochemical aspects at interfaces and supramolecular structures of polymeric systems. The classical treatment of the physicochemical behavior of polymers is presented in such a way that the book will meet the requirements of a beginner in the study of polymeric systems in solution and in some aspects of the solid state, as well as those of the experienced researcher in other types of materials. Physicochemical behavior and Supramolecular Organization of Polymers is ultimately, a contribution to the chemistry of materials; it is a powerful reference tool for students and scientists working both in polymer chemistry, polymer physics and materials science.

Polymer Reference Book

Polymer Reference Book PDF
Author: Thomas Roy Crompton
Publisher: iSmithers Rapra Publishing
ISBN: 9781859574928
Size: 59.14 MB
Format: PDF, ePub
Category : Polymers
Languages : en
Pages : 704
View: 1019

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The aim of this book is to familiarise the reader with all aspects of the techniques used in the examination of polymers, covering chemical, physiochemical and purely physical methods of examination. The types of techniques available to the polymer chemist and technician are described, and their capabilities, limitations and applications are discussed. The book is intended, for all staff who are concerned with instrumentation and methodology in the polymer laboratory including laboratory designers, engineers and chemists, and also those concerned with the implementation of analytical specifications and process control limits.

Piezoelectric Transducers And Applications

Piezoelectric Transducers and Applications PDF
Author: Antonio Arnau Vives
Publisher: Springer Science & Business Media
ISBN: 3540775080
Size: 21.68 MB
Format: PDF, Kindle
Category : Technology & Engineering
Languages : en
Pages : 532
View: 7158

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This updated guide to the current state-of-the-art of this complex and multidisciplinary area fills an urgent need for a unified source of information on piezoelectric devices and their astounding variety of existing and emerging applications. New understandings underlying the principles of Piezoelectric Transducers, new technological advances in its applications, and new areas of utility for these transducers made a second edition of this book inevitable.

Polymer Viscoelasticity

Polymer Viscoelasticity PDF
Author: Y.-H. Lin
Publisher: World Scientific
ISBN: 9789812384171
Size: 33.96 MB
Format: PDF
Category : Technology & Engineering
Languages : en
Pages : 251
View: 4202

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In this book, the studies of the Rouse, Doi?Edwards, and extended reptation theories are developed in a consistent manner from a basic level and discussed in detail. Viscoelastic properties of nearly monodisperse linear flexible polymers in both the entanglement and entanglement-free regions are analyzed quantitatively in terms of the molecular theories.

Thermal Properties Of Green Polymers And Biocomposites

Thermal Properties of Green Polymers and Biocomposites PDF
Author: Tatsuko Hatakeyama
Publisher: Springer Science & Business Media
ISBN: 1402023545
Size: 42.27 MB
Format: PDF, Mobi
Category : Technology & Engineering
Languages : en
Pages : 332
View: 1359

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From the reviews: "...This very well written new book is recommended to academic and industrial researchers and specialists interested in green polymers and mainly in their thermal properties...This new and opportune book covers some important properties of green polymers and bio-composites." (D. Feldman, Concordia University, Montreal, Canada)

Polymer Engineering Science And Viscoelasticity

Polymer Engineering Science and Viscoelasticity PDF
Author: Hal F. Brinson
Publisher: Springer
ISBN: 1489974857
Size: 36.16 MB
Format: PDF, ePub
Category : Science
Languages : en
Pages : 482
View: 5941

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This book provides a unified mechanics and materials perspective on polymers: both the mathematics of viscoelasticity theory as well as the physical mechanisms behind polymer deformation processes. Introductory material on fundamental mechanics is included to provide a continuous baseline for readers from all disciplines. Introductory material on the chemical and molecular basis of polymers is also included, which is essential to the understanding of the thermomechanical response. This self-contained text covers the viscoelastic characterization of polymers including constitutive modeling, experimental methods, thermal response, and stress and failure analysis. Example problems are provided within the text as well as at the end of each chapter. New to this edition: · One new chapter on the use of nano-material inclusions for structural polymer applications and applications such as fiber-reinforced polymers and adhesively bonded structures · Brings up-to-date polymer production and sales data and equipment and procedures for evaluating polymer characterization and classification · The work serves as a comprehensive reference for advanced seniors seeking graduate level courses, first and second year graduate students, and practicing engineers

Electrical Properties Of Polymers

Electrical Properties of Polymers PDF
Author: Evaristo Riande
Publisher: CRC Press
ISBN: 9781420030471
Size: 74.88 MB
Format: PDF, ePub, Mobi
Category : Technology & Engineering
Languages : en
Pages : 600
View: 6306

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Electrical Properties of Polymers describes the electric phenomena responsible for determining the chemical and supramolecular structure of polymers and polymeric materials. The authors explore the properties of quasi-static dipoles, reviewing Brownian motion, Debye theory, Langevin and Smoluchowski equations, and the Onsager model. This reference displays Maxwell and entropy equations, along with several others, that depict the thermodynamics of dielectric relaxation. Featuring end-of-chapter problems and useful appendices, the book reviews molecular dynamics simulations of dynamic dielectric properties and inspects mean-square dipole moments of gases, liquids, polymers, and fixed conformations.