Polymer Melt Processing

Polymer Melt Processing PDF Author: Morton M. Denn
Publisher: Cambridge University Press
ISBN: 0521899699
Category : Science
Languages : en
Pages : 0

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Book Description
This book is on the underlying foundations of the processing of polymer melts, which can be derived from relatively straightforward ideas in fluid mechanics and heat transfer. The level is that of an advanced undergraduate or beginning graduate course.

Polymer Melt Processing

Polymer Melt Processing PDF Author: Morton M. Denn
Publisher: Cambridge University Press
ISBN: 0521899699
Category : Science
Languages : en
Pages : 0

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Book Description
This book is on the underlying foundations of the processing of polymer melts, which can be derived from relatively straightforward ideas in fluid mechanics and heat transfer. The level is that of an advanced undergraduate or beginning graduate course.

Applied Polymer Rheology

Applied Polymer Rheology PDF Author: Marianna Kontopoulou
Publisher: John Wiley & Sons
ISBN: 1118140605
Category : Technology & Engineering
Languages : en
Pages : 370

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Book Description
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.

Crystallization Modalities in Polymer Melt Processing

Crystallization Modalities in Polymer Melt Processing PDF Author: Hermann Janeschitz-Kriegl
Publisher: Springer Science & Business Media
ISBN: 3211876278
Category : Technology & Engineering
Languages : en
Pages : 228

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Book Description
Structure formation in crystallizing polymers, as occurring during processing, has not been treated so far in a coherent form. This fact explains, why this monograph is written as the ?rst book devoted to this subject. A quarter of a century ago the underdevelopment of this subject was obvious. Trial and error dominated. In fact, other apposite subjects as polymer melt rheology or heat transfer, had reached high levels. A great number of books has been devoted to them. Mold ?lling of amorphous polymers and the solidi?cation of these polymers by vitri?cation can nowadays be simulated numerically with a high degree of accuracy. In the solidi?ed sample even residual stresses and corresponding birefringence effects can accurately be 1 calculated . However, semicrystalline polymers, which form the majority of industrial po- mers, have been excluded from these considerations for good reasons. In fact, great uncertainties existed about the formation of quality determining crystalline str- tures. In particular, polyole?ns suffered from this shortcoming. In 1983 this fact instigated the polymer research group at the Johannes Kepler University in Linz to start with pertinent activities. The urgency of this kind of studies becomes evident, if advantages and hitches of these polymers are considered. 1. Versatility of processing: Injection molding into a great variety of shapes and sizes, from thin walled beakers to garden chairs, not to forget pipe and pro?le extrusion, cable coating, ?ber spinning, ?lm blowing. 2. Product qualities: Ductility, low density, good electric insulation, corrosion resistance, surface quality.

Polymer Melt Rheology

Polymer Melt Rheology PDF Author: F N Cogswell
Publisher: Elsevier
ISBN: 0857092987
Category : Science
Languages : en
Pages : 195

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Book Description
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)

Thermoplastic Melt Rheology and Processing

Thermoplastic Melt Rheology and Processing PDF Author: Aroon Shenoy
Publisher: CRC Press
ISBN: 1482295539
Category : Science
Languages : en
Pages : 477

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Book Description
Presents rheological data on a number of polymers, making use of the master curve approach to determine unified curves for each generic type of polymer. The text offers a step-by-step procedure for developing a speadsheet computer program to obtain accurate thermoplastic rheograms at any tempertature without using sophisticated rheometres. It inclu

Melt Rheology and Its Role in Plastics Processing

Melt Rheology and Its Role in Plastics Processing PDF Author: K. Wissbrun
Publisher: Springer Science & Business Media
ISBN: 1461597382
Category : Science
Languages : en
Pages : 684

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Book Description
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.

Polymer Processing Instabilities

Polymer Processing Instabilities PDF Author: Savvas G. Hatzikiriakos
Publisher: CRC Press
ISBN: 142003068X
Category : Science
Languages : en
Pages : 484

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Book Description
Polymer Processing Instabilities: Control and Understanding offers a practical understanding of the various flows that occur during the processing of polymer melts. The book pays particular attention to flow instabilities that affect the rate of production and the methods used to prevent and eliminate flow instabilities in order to increase product

Elastic Behavior of Polymer Melts

Elastic Behavior of Polymer Melts PDF Author: Helmut Münstedt
Publisher: Carl Hanser Verlag GmbH Co KG
ISBN: 1569907552
Category : Technology & Engineering
Languages : en
Pages : 299

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Book Description
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.

Polymer Processing

Polymer Processing PDF Author: Donald G. Baird
Publisher: John Wiley & Sons
ISBN: 0470930586
Category : Technology & Engineering
Languages : en
Pages : 422

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Book Description
Fundamental concepts coupled with practical, step-by-step guidance With its emphasis on core principles, this text equips readers with the skills and knowledge to design the many processes needed to safely and successfully manufacture thermoplastic parts. The first half of the text sets forth the general theory and concepts underlying polymer processing, such as the viscoelastic response of polymeric fluids and diffusion and mass transfer. Next, the text explores specific practical aspects of polymer processing, including mixing, extrusion dies, and post-die processing. By addressing a broad range of design issues and methods, the authors demonstrate how to solve most common processing problems. This Second Edition of the highly acclaimed Polymer Processing has been thoroughly updated to reflect current polymer processing issues and practices. New areas of coverage include: Micro-injection molding to produce objects weighing a fraction of a gram, such as miniature gears and biomedical devices New chapter dedicated to the recycling of thermoplastics and the processing of renewable polymers Life-cycle assessment, a systematic method for determining whether recycling is appropriate and which form of recycling is optimal Rheology of polymers containing fibers Chapters feature problem sets, enabling readers to assess and reinforce their knowledge as they progress through the text. There are also special design problems throughout the text that reflect real-world polymer processing issues. A companion website features numerical subroutines as well as guidance for using MATLAB®, IMSL®, and Excel to solve the sample problems from the text. By providing both underlying theory and practical step-by-step guidance, Polymer Processing is recommended for students in chemical, mechanical, materials, and polymer engineering.

Polymer Melt Fracture

Polymer Melt Fracture PDF Author: Rudy Koopmans
Publisher: CRC Press
ISBN: 1420018280
Category : Science
Languages : en
Pages : 344

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Book Description
The continually growing plastics market consists of more than 250 million tons of product annually, making the recurring problem of polymer melt fracture an acute issue in the extrusion of these materials. Presenting a pictorial library of the different forms of melt fracture and real industrial extrusion melt fracture phenomena, Polymer Melt Fract