Download or read book Measuring the Extensional Flow Properties of Polymer Melts written by M. Rides and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measuring the Extensional Flow Properties of Polymer Melts Using Stretching Methods written by M. Rides and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flow Properties of Polymer Melts written by J. A. Brydson and published by . This book was released on 1981 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extensional Flow Properties of Polymer Melts Using Converging Flow Methods written by National Physical Laboratory (Great Britain). Centre for Materials Measurement and Technology and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extensional Flow Properties of Polymer Melts Using Converging Flow Methods written by Martin Rides and published by . This book was released on 1999 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extensional Flow Properties of Polymer Melts Using Stretching Flow Methods written by Martin Rides and published by . This book was released on 1999 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Melt Rheology written by F N Cogswell and published by Elsevier. This book was released on 1981-01-01 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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)
Download or read book Elastic Behavior of Polymer Melts written by Helmut Münstedt and published by Carl Hanser Verlag GmbH Co KG. This book was released on 2019-07-08 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Polymer Melt Rheology and Flow Birefringence written by Hermann Janeschitz-Kriegl and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present monograph is intended as an introduction into a field which certainly did not receive proper attention in the past. It is one of the aims of this book to verify this suppo sition. The author hopes to show that the technique of the measurement of flow birefringence can fulfil an important com plementary task in polymer melt rheology. From this point it is expected that the present monograph will attract the atten tion of polymer scientists in general, and of rheologists and process engineers in particular. Certainly, the fourth chapter will appeal to the latter group. As a teacher in polymer science and technology the author wants to address also the group of the graduate students. In fact, the standard knowledge acquired during usual university studies in chemistry, physics or engineering does not enable a quick start of research activities in the field of polymer melt rheology. Certainly, in this typically interdisciplinary field everyone can lay emphasis on matters which are familar to hirn because of his preceding education. Significant research activities, however, can only be generated on the basis of a more universal knowledge. In the absence of this knowledge beginners have to rely upon the guidance of their supervisors for an unduly long period. Otherwise they take the risk of losing too much of their costly time. This holds in particular for the experimentalists who cannot be dispensed from being familiar with the necessary theoretical background.
Download or read book Measuring the Extesional Flow Properties of Polymer Melts Using Stretching Methods written by M Rides and published by . This book was released on 1999 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to the Measurement of Extensional Flow Properties of Polymers written by M. Rides and published by . This book was released on 2002 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheology and Its Role in Plastics Processing written by P. Prentice and published by iSmithers Rapra Publishing. This book was released on 1995 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review encompasses fundamental principles and rheological equations of state, polymer melt rheology (shear and extensional flow, viscoelasticity, die swell and melt fracture) and rheological c094 techniques. It describes the main plastics processing techniques, and explains the influence of polymer melt rheology upon their operation. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database provides useful references for further reading.
Download or read book Extensional Flow Properties of Polymers Using Stretching Flow Methods written by Martin Rides and published by . This book was released on 2002 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermoplastic Melt Rheology and Processing written by Aroon Shenoy and published by CRC Press. This book was released on 1996-08-23 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book In process Monitoring of the Flow Properties of Polymer Melts Using On line and In line Methods written by Martin Rides and published by . This book was released on 2000 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved measurement and analysis techniques for melt extensional rheometry written by Guido Krebs and published by GRIN Verlag. This book was released on 2006-07-26 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (undergraduate) from the year 2006 in the subject Materials Science, grade: 1,8, Martin Luther University (Institut für Werkstoffwissenschaft), language: English, abstract: Characterising the deformation of a polymer melt is an important task to model its processing behaviour. Knowing only shear flow properties is not sufficient to explain processing behaviour of polymers in many processes such as blown film extrusion, thermoforming, fibre spinning or blow moulding that involve stretching. As Meissner (1979) realised on different LDPE resins using only shear data can not always sufficiently explain the deformation behaviour and therefore the processing behaviour of polymers. Since the 1980s the extensional or elongational viscosity has been recognised as a very important property for processes like blown film extrusion, thermoforming or fibre spinning (Baird 1999, Wagner et al. 2002, Bhattacharya 2004). Obtained results show that the elongational viscosity is also a very sensitive indicator for long-chain branching. Measuring the extensional viscosity means getting a value for the materials resistance to stretching flow or elongational deformation. Since the first theoretical works have been made on this topic by Trouton in 1906, different measuring methods have been developed. Apart from simple methods which are not well defined and perform only indirect measurements (like the melt strength test or capillary rheometry), some more complex and precise methods have been established. The widely accepted and commercial available and therefore the most important ones are the Munstedt-type and the Meissner-type, both introduced in the 1970’s. The Munstedt-type rheometer operates via translating clamps suspended in an oil bath (Munstedt 1979) and the Meissner-type uses counter rotating belts (Meissner 1981). Both have been commercialised by Rheometrics, the Munstedt-type as the Rheometrics Extensional Rheometer (RER) in 1981 and a modified Meissner-type as the Rheometrics Melt Extensional Rheometer (RME) in 1994. The RME technique was used for various experiments such as Meissner et al. (1981, 1982), Meissner (1985), Meissner and Hostettler (1994), Levitt and Macosko (1997), Wagner et al. (1998, 2000, 2002), Schulze at al. (2001). Nevertheless there are different problems occurring with the RME device discussed in various papers e.g. by Meissner (1994), Schweizer (2000), Schulze at al. (2001) and Barroso et al. (2002). [...]
Download or read book Melt Rheology and its Applications in the Plastics Industry written by John M Dealy and published by Springer Science & Business Media. This book was released on 2013-05-14 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second edition of Melt Rheology and its Role in Plastics Processing, although the title has changed to reflect its broadened scope. Advances in the recent years in rheometer technology and polymer science have greatly enhanced the usefulness of rheology in the plastics industry. It is now possible to design polymers having specific molecular structures and to predict the flow properties of melts having those structures. In addition, rheological properties now provide more precise information about molecular structure. This book provides all the information that is needed for the intelligent application of rheology in the development of new polymers, the determination of molecular structure and the correlation of processability with laboratory test data. Theory and equations are limited to what is essential for the use of rheology in the characterization of polymers, the development of new plastics materials and the prediction of plastics processing behavior. The emphasis is on information that will be of direct use to practitioners. Extensive references are provided for those wishing to pursue certain issues in greater depth. While the primary audience is applied polymer scientists and plastics engineers, the book will also be of use to postgraduate students in polymer science and engineering and as a text for a graduate course.
