Low Temperature Properties Of Polymers

Author : I. Perepechko
Publisher : Elsevier
Page : 313 pages
File Size : 49,6 Mb
Release : 2013-10-22
Category : Technology & Engineering
ISBN : 9781483158006

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Low-Temperature Properties of Polymers by I. Perepechko Pdf

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.

Author : I. Perepechko
Publisher : Unknown
Page : 128 pages
File Size : 52,7 Mb
Release : 1977
Category : Electronic
ISBN : OCLC:985902050

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Low Temperature Properties of Polymers by I. Perepechko Pdf

Author : Gunther Hartwig
Publisher : Springer Science & Business Media
Page : 268 pages
File Size : 41,8 Mb
Release : 2013-04-18
Category : Science
ISBN : 9781475762136

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Polymer Properties at Room and Cryogenic Temperatures by Gunther Hartwig Pdf

Most descriptions of polymers start at room temperature and end at the melting point. This textbook starts at very low temperatures and ends at room temperature. At low temperatures, may processes and relaxations are frozen which allows singular processes or separate relaxations to be studied. At room temperatures, or at the main glass transitions, many processes overlap and the properties are determined by relaxations. At low temperatures, there are temperature ranges with negligible influences by glass transitions. They can be used for investigating so-called basic properties which arise from principles of solid state physics. The chain structure of polymers, however, requires stringent modifications for establishing solid state physics of polymers. Several processes which are specific of polymers, occur only at low temperatures. There are also technological aspects for considering polymers at low temperatures. More and more applications of polymeric materials in low temperature technology appear. Some examples are thermal and electrical insulations, support elements for cryogenic devices, low-loss materials for high frequency equipments. It is hoped that, in addition to the scientific part, a data collection in the appendix may help to apply polymers more intensively in low temperature technology. The author greatly appreciates the contributions by his coworkers of the Kernforschungszentrum Karlsruhe in measurement and discussion of many data presented in the textbook and its appendix. Fruitful disccussions with the colleagues Prof. H. Baur, Prof. S. Hunklinger, Prof. D. Munz and Prof. R.

Author : Susheel Kalia,Shao-Yun Fu
Publisher : Springer Science & Business Media
Page : 293 pages
File Size : 53,7 Mb
Release : 2013-03-26
Category : Technology & Engineering
ISBN : 9783642353352

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Polymers at Cryogenic Temperatures by Susheel Kalia,Shao-Yun Fu Pdf

Kalia and Fu's novel monograph covers cryogenic treatment, properties and applications of cryo-treated polymer materials. Written by numerous international experts, the twelve chapters in this book offer the reader a comprehensive picture of the latest findings and developments, as well as an outlook on the field. Cryogenic technology has seen remarkable progress in the past few years and especially cryogenic properties of polymers are attracting attention through new breakthroughs in space, superconducting, magnetic and electronic techniques. This book is a valuable resource for researchers, educators, engineers and graduate students in the field and at technical institutions.

Author : A. F. Clark,Richard Reed,Gunther Hartwig
Publisher : Springer Science & Business Media
Page : 440 pages
File Size : 48,5 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461575221

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Nonmetallic Materials and Composites at Low Temperatures by A. F. Clark,Richard Reed,Gunther Hartwig Pdf

Cryogenics is an emerging technology filled with promises. Many cryogenic systems demand the use of nonmetallics and composites for adequate or increased performance. Thermal and electrical insulations, potting for superconducting magnets' mechanical sta bility, and composite structures appear to be some of the most significant applications. Research on nonmetallics at cryogenic temperatures has not progressed to the degree of research on metals. Nor can room temperature research be extrapolated to low tempera tures; most polymers undergo a phase transformation to the glassy state below room temperature. Research by producers, for the most part, has not been prac tical, because, except for LNG applications, the market for large material sales is not imminent. There are, however, many government stimulated developmental programs. Research on nonmetallics thus is dictated by development project needs, which require studies orien ted toward prototype hardware and specific objectives. As a result, research continuity suffers. Under these conditions, periodic topical conferences on this subject are needed. Industry and uni versity studies must be encouraged. Designers and project research material specialists need to exchange experiences and data. Low temperature-oriented research groups, such as the National Bureau of Standards and the Institute for Technical Physics - Karlsruhe, must contribute by assisting with fundamentals, interpreting proj ect data, and contributing to project programs through their materials research.

Author : Tito T. Serafini,Jack L. Koenig
Publisher : Unknown
Page : 320 pages
File Size : 55,9 Mb
Release : 1968
Category : Technology & Engineering
ISBN : UCAL:B4144320

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Cryogenic Properties of Polymers by Tito T. Serafini,Jack L. Koenig Pdf

Author : D. Wigley
Publisher : Springer Science & Business Media
Page : 338 pages
File Size : 46,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781468418873

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Mechanical Properties of Materials at Low Temperatures by D. Wigley Pdf

In writing this monograph, the aim has been to consider the mechanical properties of the wide range of materials now available in such a way as to start with the fundamental nature of these properties and to follow the discussion through to the point at which the reader is able to comprehend the significance or otherwise of the large amounts of data now available in design manuals and other compilations. In short, it is hoped that this volume will be used as a companion to these data compilations and as an aid to their interpretation. In attempting to cover such a wide field, a large degree of selection has been necessary, as complete volumes have been written on topics which here have had to be covered in a few pages or less. It is inevitable that not everyone will agree with the choice made, especially if it is his own subject which has been discussed rather briefly, and the author accepts full res ponsibility for the selection made. The book is written at a level which should be easily followed by a university graduate in science or engineer ing, although, if his background has not included a course in materials science, some groundwork may be lacking.

Author : Guglielmo Ventura,Mauro Perfetti
Publisher : Springer
Page : 220 pages
File Size : 44,5 Mb
Release : 2014-06-23
Category : Science
ISBN : 9789401789691

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Thermal Properties of Solids at Room and Cryogenic Temperatures by Guglielmo Ventura,Mauro Perfetti Pdf

The minimum temperature in the natural universe is 2.7 K. Laboratory refrigerators can reach temperatures in the microkelvin range. Modern industrial refrigerators cool foods at 200 K, whereas space mission payloads must be capable of working at temperatures as low as 20 K. Superconducting magnets used for NMR work at 4.2 K. Hence the properties of materials must be accurately known also at cryogenic temperatures. This book provides a guide for engineers, physicists, chemists, technicians who wish to approach the field of low-temperature material properties. The focus is on the thermal properties and a large spectrum of experimental cases is reported. The book presents updated tables of low-temperature data on materials and a thorough bibliography supplements any further research. Key Features include: ° Detailed technical description of experiments ° Description of the newest cryogenic apparatus ° Offers data on cryogenic properties of the latest new materials ° Current reference review

Author : Bukhina,Kurlyand
Publisher : CRC Press
Page : 193 pages
File Size : 42,5 Mb
Release : 2007-11-01
Category : Technology & Engineering
ISBN : 9789047422426

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Low-Temperature Behaviour of Elastomers by Bukhina,Kurlyand Pdf

This book focuses on the effect the composition of rubbers and the conditions of their processing have on low-temperature resistance. It considers the nature and development of two physical processes, glass transition and crystallization, determining low-temperature behavior of elastomers. The book addresses the effects of deformation, pressure, an

Author : Yuli K. Godovsky
Publisher : Springer Science & Business Media
Page : 315 pages
File Size : 46,5 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9783642516702

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Thermophysical Properties of Polymers by Yuli K. Godovsky Pdf

Among various branches of polymer physics an important position is occupied by that vast area, which deals with the thermal behav ior and thermal properties of polymers and which is normally called the thermal physics of polymers. Historically it began when the un usual thermo-mechanical behavior of natural rubber under stretch ing, which had been discovered by Gough at the very beginning of the last century, was studied 50 years later experimentally by Joule and theoretically by Lord Kelvin. This made it possible even at that time to distinguish polymers from other subjects of physical investigations. These investigation laid down the basic principles of solving the key problem of polymer physics - rubberlike elasticity - which was solved in the middle of our century by means of the statistical thermodynamics applied to chain molecules. At approx imately the same time it was demonstrated, by using the methods of solid state physics, that the low temperature dependence of heat capacity and thermal expansivity of linear polymers should fol low dependencies different from that characteristic of nonpolymeric solids. Finally, new ideas about the structure and morphology of polymers arised at the end of the 1950s stimulated the development of new thermal methods (differential scanning calorimetry, defor mation calorimetry), which have become very powerful instruments for studying the nature of various states of polymers and the struc tural heterogeneity.

Author : Anonim
Publisher : Springer
Page : 332 pages
File Size : 51,9 Mb
Release : 1992-01-02
Category : Science
ISBN : UCAL:B4477421

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Thermophysical Properties of Polymers by Anonim Pdf

Among various branches of polymer physics an important position is occupied by that vast area, which deals with the thermal behav ior and thermal properties of polymers and which is normally called the thermal physics of polymers. Historically it began when the un usual thermo-mechanical behavior of natural rubber under stretch ing, which had been discovered by Gough at the very beginning of the last century, was studied 50 years later experimentally by Joule and theoretically by Lord Kelvin. This made it possible even at that time to distinguish polymers from other subjects of physical investigations. These investigation laid down the basic principles of solving the key problem of polymer physics - rubberlike elasticity - which was solved in the middle of our century by means of the statistical thermodynamics applied to chain molecules. At approx imately the same time it was demonstrated, by using the methods of solid state physics, that the low temperature dependence of heat capacity and thermal expansivity of linear polymers should fol low dependencies different from that characteristic of nonpolymeric solids. Finally, new ideas about the structure and morphology of polymers arised at the end of the 1950s stimulated the development of new thermal methods (differential scanning calorimetry, defor mation calorimetry), which have become very powerful instruments for studying the nature of various states of polymers and the struc tural heterogeneity.

Author : Dorothea M. Johnson
Publisher : Unknown
Page : 182 pages
File Size : 52,7 Mb
Release : 1977
Category : Low temperatures
ISBN : STANFORD:36105030174234

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Low Temperature Properties of Selected Materials by Dorothea M. Johnson Pdf

This report is a bibliography of the work reported in the literature on the effects of low temperature on the properties of structural materials. Some of the newer areas of cryogenic technology such as superconducting machinery involve environments which may subject the components to temperature as low as 4 K. Exposure of structural materials to such low temperatures affects their properties. This bibliography contains 963 references published between 1950-1976, arranged in chronological/alphabetical order. Combined material/property indexes are provided. (Author).

Author : American Society for Testing and Materials
Publisher : ASTM International
Page : 130 pages
File Size : 50,5 Mb
Release : 1977
Category : Technology & Engineering
ISBN : 0462800008

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Low-temperature Properties of Bituminous Materials and Compacted Bituminous Paving Mixtures by American Society for Testing and Materials Pdf

Author : Wiley
Publisher : John Wiley & Sons
Page : 1605 pages
File Size : 42,6 Mb
Release : 2012-12-03
Category : Technology & Engineering
ISBN : 9781118582831

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Properties and Behavior of Polymers, 2 Volume Set by Wiley Pdf

The book provides comprehensive, up-to-date information on the physical properties of polymers including, viscoelasticity, flammability, miscibility, optical properties, surface properties and more. Containing carefully selected reprints from the Wiley's renowned Encyclopedia of Polymer Science and Technology, this reference features the same breadth and quality of coverage and clarity of presentation found in the original.

Author : I. M. Ward,J. Sweeney
Publisher : John Wiley & Sons
Page : 404 pages
File Size : 50,5 Mb
Release : 2004-05-31
Category : Technology & Engineering
ISBN : 047149626X

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An Introduction to the Mechanical Properties of Solid Polymers by I. M. Ward,J. Sweeney Pdf

Provides a comprehensive introduction to the mechanical behaviour of solid polymers. Extensively revised and updated throughout, the second edition now includes new material on mechanical relaxations and anisotropy, composites modelling, non-linear viscoelasticity, yield behaviour and fracture of tough polymers. The accessible approach of the book has been retained with each chapter designed to be self contained and the theory and applications of the subject carefully introduced where appropriate. The latest developments in the field are included alongside worked examples, mathematical appendices and an extensive reference. * Fully revised and updated throughout to include all the latest developments in the field * Worked examples at the end of the chapter * An invaluable resource for students of materials science, chemistry, physics or engineering studying polymer science