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.

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I︠U︡. G I︠A︡novskiĭ

by Yuri G. Yanovsky

Springer Science + Business Media BV

Springer-Verlag

Springer Nature, Dordrecht, 2012

Dordrecht, Netherlands, 1993

Netherlands, Netherlands

Sep 17, 2012

uuuu

sm41118387

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Source title: Polymer Rheology: Theory and Practice

Front Matter....Pages i-xi
Some Theoretical and Numerical Approaches to Describing the Viscoelastic Properties of Polymer Systems....Pages 1-56
Rheological Properties, Relaxation Behavior, and Rupture of Polymers at Temperatures above their Glass Transition Temperature....Pages 57-111
Rheological and Relaxation Properties of Polymer Blends....Pages 112-170
Rheological and Relaxation Properties of Copolymers....Pages 171-199
Rheological and Relaxation Properties of Filled Polymers....Pages 200-275
Back Matter....Pages 276-298

This book presents a comprehensive discussion of the various aspects of both theoretical and applied rheology. Attention is focused on those aspects that are most important today, namely the general laws of rheological behaviour of composite systems, including blends of polymers, copolymers and filled compositions.

2013-08-01