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Author : Lourdes Angelica Vega Acosta De Vargas
Publisher : Unknown
Page : 454 pages
File Size : 49,8 Mb
Release : 1979
Category : Polymers
ISBN : WISC:89011257649
Author : Helmut Münstedt
Publisher : Carl Hanser Verlag GmbH Co KG
Page : 296 pages
File Size : 43,6 Mb
Release : 2019-07-08
Category : Technology & Engineering
ISBN : 9781569907559
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.
Author : Donald G. Baird
Publisher : Unknown
Page : 392 pages
File Size : 55,9 Mb
Release : 1974
Category : Electronic
ISBN : WISC:89010831832
Author : Giovanni Astarita
Publisher : Springer Science & Business Media
Page : 646 pages
File Size : 55,5 Mb
Release : 2013-06-29
Category : Science
ISBN : 9781468437430
At the VIIth International Congress on Rheology, which was held in Goteborg in 1976, Proceedings were for the first time printed in advance and distributed to all participants at the time of the Congress. Although of course we Italians would be foolish to even try to emulate our Swedish friends as far as efficiency of organization is concerned, we decided at the very beginning that, as far as the Proceedings were concerned, the VIIIth International Congress on Rheology in Naples would follow the standards of time liness set by the Swedish Society of Rheology. This book is the result we have obtained. We wish to acknowledge the cooperation of Plenum Press in producing it within the very tight time schedule available. Every four years, the International Congress on Rheology represents the focal point where all rheologists meet, and the state of the art is brought up to date for everybody interested; the Proceedings represent the written record of these milestones of scientific progress in rheology. We have tried to make use of the traditions of having invited lectures, and of leaving to the organizing committee the freedom to choose the lecturers as they see fit, in order to collect a group of invited lectures which gives as broad as possible a landscape of the state of the art in every relevant area of rheology. The seventeen invited lectures are collected in the first volume of the proceedings.
Author : J. A. Brydson
Publisher : Unknown
Page : 250 pages
File Size : 42,6 Mb
Release : 1981
Category : Polymer melting
ISBN : STANFORD:36105032693934
Author : A.A. Collyer,D.W. Clegg
Publisher : Springer Science & Business Media
Page : 653 pages
File Size : 46,5 Mb
Release : 2013-06-29
Category : Technology & Engineering
ISBN : 9789401728980
In many cases rheological measurements are carried out in the simplest of geometries, but the interpretation involved in obtaining the rheological parameters of the test fluids from these measurements is surprisingly complex. The purpose of this book is to emphasise the points on which most workers in the field agree, and to let the authors deal with the contentious points according to their own beliefs and experience. This work represents a summary of the current thought on rheological meas urement by experts in the various techniques. When making measurements and obtaining from them parameters that describe the flow behaviour of the test fluids, it is essential that the experimentalist understands the underlying theory and shortcomings of the measurement technique, that he is aware of the likely microstructure of the fluid, and that from this he can appreciate how the fluid and the measuring system will interact with each other. It is this interaction that gives both the required rheological parameters of the fluids and the artefacts that confuse the issue. This book covers the main rheological measurement techniques from capillary, slit and stretching flows to rotational and oscillatory rheometry in various geometries including sliding plate measurements. These topics are backed up by chapters on more practical aspects, such as commercial instruments, and on computer control and data acquisition. The chapters deal with the basic methods, how the measurements are taken, and what assumptions and interpretations are made to obtain valid data on the test fluids.
Author : F N Cogswell
Publisher : Elsevier
Page : 195 pages
File Size : 50,6 Mb
Release : 1981-01-01
Category : Science
ISBN : 9780857092984
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)
Author : Isaac Ghebre-Sellassie,Charles E. Martin,Feng Zhang,James DiNunzio
Publisher : CRC Press
Page : 433 pages
File Size : 44,7 Mb
Release : 2018-03-05
Category : Medical
ISBN : 9781498704922
The first edition of Pharmaceutical Extrusion Technology, published in 2003, was deemed the seminal book on pharmaceutical extrusion. Now it is expanded and improved, just like the usage of extrusion has expanded, improved and evolved into an accepted manufacturing technology to continuously mix active pharmaceutical ingredients with excipients for a myriad of traditional and novel dosage forms. Pharmaceutical Extrusion Technology, Second Edition reflects how this has spawned numerous research activities, in addition to hardware and process advancements. It offers new authors, expanded chapters and contains all the extrusion related technical information necessary for the development, manufacturing, and marketing of pharmaceutical dosage forms. Key Features: Reviews how extrusion has become an accepted technology to continuously mix active pharmaceutical ingredients with excipients Focuses on equipment and process technology Explains various extrusion system configurations as a manufacturing methodology for a variety of dosage forms Presents new opportunities available only via extrusion and future trends Includes contributions of experts from the process and equipment fields
Author : R.S. Lenk
Publisher : Springer Science & Business Media
Page : 380 pages
File Size : 53,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401096669
Everything flows, so rheology is a universal science. Even if we set aside claims of such width, there can be no doubt of its importance in polymers. It joins with chemistry in the polymerisation step but polymer engineering is supreme in all the succeeding steps. This is the area concerned with the fabrication of the polymer into articles or components, with their design to meet the needs in service, and with the long and short term performance of the article or component. This is a typical area of professional engineering activity, but one as yet without its proper complement of professional engineers. An understanding of polymer rheology is the key to effective design and material plus process selection, to efficient fabrication, and to satisfactory service, yet few engineers make adequate use of what is known and understood in polymer rheology. Its importance in the flow processes of fabrication is obvious. Less obvious, but equally important, are the rheological phenomena which determine the in-service performance. There is a gap between the polymer rheologist and the polymer engineer which is damaging to both parties and which contributes to a less than satisfactory use of polymers in our society. It is important that this gap be filled and this book makes an attempt to do so. It presents an outline of what is known in a concise and logical fashion. It does this starting from first principles and with the minimum use of complex mathematics.
Author : Dietrich Braun,Harald Cherdron,Werner Kern
Publisher : CRC Press
Page : 360 pages
File Size : 40,7 Mb
Release : 1984
Category : Polymerization
ISBN : 3718600595
Author : Dietrich Braun,Harald Cherdron,Matthias Rehahn,Helmut Ritter,Brigitte Voit
Publisher : Springer Science & Business Media
Page : 428 pages
File Size : 54,5 Mb
Release : 2012-12-13
Category : Technology & Engineering
ISBN : 9783642289804
Emphasis is on a broad description of the general methods and processes for the synthesis, modification and characterization of macromolecules. These more fundamental chapters will be supplemented by selected and detailed experiments. In addition to the preparative aspects, the book also gives the reader an impression on the relation of chemical constitution and morphology of Polymers to their properties, as well as on their application areas. Thus, an additional textbook will not be needed in order to understand the experiments. The 5th edition contains numerous changes: In recent years, so-called functional polymers which have special electrical, electronic, optical and biological properties, have gained more and more in interest. This textbook was therefore supplemented by recipes which describe the synthesis of these materials in a new chapter "Functional polymers". Together with new experiments in chapter 3,4 and 5 the book now contains more than 120 recipes that describe a wide range of macromolecules. From the reviews of recent editions: "This is an excellent book for all polymer chemists engaged in synthesis research studies and education. It is educationally sound and has excellent laboratory synthetic examples. The fundamentals are well done for the teaching of students and references are resonably up-to-date. As in previous issues, there are sections dealing with an introduction; structure and nomenclature; methods and techniques for synthesis, characterization, processing and modification of polymers. ....The authors have noted the following changes from previous editions- a new section on correlations of structure, morphology and properties; revision and enlargement of other property and characterization procedures; additional new experiments such as controlled radical polymerization; enzymatic polymerizations; microelmulsions; and electrical conducting polymers. This is a high quality textbook at a reasonable price and should be considered as a suitable reference for all engaged in synthetic areas of polymer research." (Eli M. Pearce, Polytechnic University, Brooklyn, NY, USA)
Author : Nicholas P. Cheremisinoff,Paul N. Cheremisinoff
Publisher : CRC Press
Page : 1113 pages
File Size : 43,9 Mb
Release : 2020-07-09
Category : Political Science
ISBN : 9780429610554
Elastomer Technology Handbook is a major new reference on the science and technology of engineered elastomers. This contributed volume features some of the latest work by international experts in polymer science and rubber technology. Topics covered include theoretical and practical information on characterizing rubbers, designing engineering elastomers for consumer and engineering applications, properties testing, chemical and physical property characterization, polymerization chemistry, rubber processing and fabrication methods, and rheological characterization. The book also highlights both conventional and emerging market applications for synthetic rubber products and emphasizes the latest technology advancements. Elastomer Technology Handbook is a "must have" book for polymer researchers and engineers. It will also benefit anyone involved in the handling, manufacturing, processing, and designing of synthetic rubbers.
Author : Günter Beyer,Christian Hopmann
Publisher : John Wiley & Sons
Page : 432 pages
File Size : 49,8 Mb
Release : 2018-01-03
Category : Science
ISBN : 9783527340989
This first comprehensive overview of reactive extrusion technology for over a decade combines the views of contributors from both academia and industry who share their experiences and highlight possible applications and markets. They also provide updated information on the underlying chemical and physical concepts, summarizing recent developments in terms of the material and machinery used. As a result, readers will find here a compilation of potential applications for reactive extrusion to access new and cost-effective polymeric materials, while using existing compounding machines.
Author : Michele Schirru
Publisher : Springer
Page : 167 pages
File Size : 49,7 Mb
Release : 2017-02-21
Category : Technology & Engineering
ISBN : 9783319534084
This thesis presents a novel ultrasonic instrument for non-invasive and in-situ characterization of journal bearing lubricant viscosity. In particular, the application to journal bearings is described by non-invasively measuring the viscosity and localized power losses throughout operation. This ultrasonic viscometer is based on the reflection of polarized shear waves from a thin resonating coating layer to increase the measurement sensitivity, in comparison to conventional ultrasonic methods. This instrument allows for a full engine oil viscoelastic characterization in-situ. The book investigates the effects of temperature, pressure and shear rate, and describes in detail the ultrasonic setup and method. Further, it demonstrates that the same technique can be applied similarly to monitor the lubrication of other engine components. As such, it offers a unique instrument that can drive the research of oil formulations to improve engine performance and fulfill the requirements of international fuel economy regulations.
Author : Mahesh Padmanabhan
Publisher : Unknown
Page : 552 pages
File Size : 53,8 Mb
Release : 1992
Category : Electronic
ISBN : MINN:31951D00754016D
