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Author : James F. Macnamara, Jr.
Publisher : Unknown
Page : 0 pages
File Size : 47,6 Mb
Release : 2020-04
Category : Electronic
ISBN : 1595102981
Author : B. H Gregory
Publisher : Trafford Publishing
Page : 234 pages
File Size : 46,7 Mb
Release : 2009-11
Category : Reference
ISBN : 9781426918100
A revised version of this book is now available.The polyethylene industry has been in the midst of major restructuring and rationalization. This has lead to joint ventures and alliances to combine technologies and exploit opportunities to maximize improvements in process productivity, catalyst innovations, and enhancements in extrusion technology and converting. This comprehensive study of the polyethylene film extrusion process describes this technology in detail. In depth descriptions of the manufacturing processes for polyethylene homopolymers and copolymers, including metallocenes, are reviewed. All aspects of machine design with particular emphasis on screws and dies including coextrusion are discussed comprehensively. With computer modeling, the interactions between equipment and polymer are quantified. All aspects of equipment design and polymer features that control melt fracture, interfacial instabilities, gauge control, output and temperature, and cooling of blown and cast film processes are presented quantitatively. This methodology will highlight solutions in troubleshooting for optimum design and operation and the best available polymer and formulation choices. All polyethylene film applications in packaging, agriculture, lamination, and construction, consumer, industrial, and health care are reviewed and discussed in depth.
Author : Thomas I. Butler
Publisher : Tappi Press
Page : 768 pages
File Size : 47,5 Mb
Release : 1992-01-01
Category : Technology & Engineering
ISBN : 0898522501
Author : Bertram Hubert Gregory
Publisher : Unknown
Page : 310 pages
File Size : 55,7 Mb
Release : 2014-11-24
Category : Technology & Engineering
ISBN : 1906479127
A practical and detailed evaluation of polyethylene film extrusion processes for a diverse range of products. Polyethylene film is pervasive in many aspects of everyday life in applications including consumer and bulk packaging, household items, construction, horticulture, medical and hygiene products and many more. Established now for many years the technology of polyethylene film extrusion continues to develop as newer applications often demand superior performance and more established uses strive for reduced materials consumption by downgauging. Film performance is influenced by the nature of the polymer, the manufacturing process and a wide variety of additives, as well as the option of creating ever more complex multi-layered structures by coextrusion, laminating, coating and even intentional blocking. Applications may demand stretch or shrink behaviour, mechanical strength, heat sealability and high or low permeability. This book has been written for a wide readership of technologists, engineers, marketers and students engaged in the development and production of polyolefin films for all applications. The aim is to assist in optimizing product performance, evaluating the most cost effective solutions and providing useful information on the key polymers and films commercially available. Key features of screw and die designs and film treatments, blending and formulations are evaluated. Clear diagrams are provided together with copious data.
Author : Thomas I. Butler,George E. Ealer
Publisher : Tappi
Page : 616 pages
File Size : 50,8 Mb
Release : 2005-01-01
Category : Plastic films
ISBN : 159510075X
Author : Technical Association of the Pulp and Paper Industry Staff
Publisher : Unknown
Page : 792 pages
File Size : 52,8 Mb
Release : 2024-06-10
Category : Electronic
ISBN : 078373400X
Author : Kirk Cantor
Publisher : Unknown
Page : 186 pages
File Size : 54,9 Mb
Release : 2006
Category : Technology & Engineering
ISBN : UOM:39015062539344
"The companion CD-ROM , The Blown Film Extrusion Simulator, is provided to enhance the learning process. This software was developed specifically to teach blown film extrusion equipment operation and processing principles." --back cover.
Author : Harold F. Giles Jr,John R. Wagner, Jr.,Eldridge M. Mount
Publisher : William Andrew
Page : 636 pages
File Size : 46,5 Mb
Release : 2013-09-21
Category : Technology & Engineering
ISBN : 9781437734829
The second edition of Extrusion is designed to aid operators, engineers, and managers in extrusion processing in quickly answering practical day-to-day questions. The first part of the book provides the fundamental principles, for operators and engineers, of polymeric materials extrusion processing in single and twin screw extruders. The next section covers advanced topics including troubleshooting, auxiliary equipment, and coextrusion for operators, engineers, and managers. The final part provides applications case studies in key areas for engineers such as compounding, blown film, extrusion blow molding, coating, foam, and reprocessing. This practical guide to extrusion brings together both equipment and materials processing aspects. It covers basic and advanced topics, for reference and training, in thermoplastics processing in the extruder. Detailed reference data are provided on such important operating conditions as temperatures, start-up procedures, shear rates, pressure drops, and safety. A practical guide to the selection, design and optimization of extrusion processes and equipment Designed to improve production efficiency and product quality Focuses on practical fault analysis and troubleshooting techniques
Author : Kirk Cantor
Publisher : Unknown
Page : 128 pages
File Size : 45,8 Mb
Release : 2018
Category : Extrusion blow molding
ISBN : 1523124814
"From hardware and materials through processing and properties, a broad coverage of blown film extrusion is presented. A primary objective of this book is to ensure a useful balance of theory and practice. The reader will find the answers to why they encounter certain effects in the blown film process so that they are better able to troubleshoot and improve their operations. At the same time, current practices and equipment are emphasized to keep readers up-to-date with the most productive and efficient technology. The companion computer-based learning tool, The Blown Film Extrusion Simulator, is provided to enhance the reader's understanding. This software was developed specifically to teach blown film extrusion equipment operation and processing principles, and is available for download. Throughout this book, exercises using the simulator are described to complement the methods and principles explained. New in this third edition is a chapter on polymer rheology, with an overview of the rheology of polymer melts and its effect on extruding blown film. Additionally, improvements and corrections have been made throughout the book. Contents: Materials for Blown Film Polymer Rheology Extrusion Overview Hardware for Blown Film Processing Coextrusion Film Properties Troubleshooting"--
Author : Anonim
Publisher : Unknown
Page : 552 pages
File Size : 47,8 Mb
Release : 2008
Category : Paper industry
ISBN : MINN:31951P01094196Q
Author : Harold F. Giles Jr,Eldridge M. Mount III,John R. Wagner, Jr.
Publisher : William Andrew
Page : 560 pages
File Size : 42,9 Mb
Release : 2004-12-31
Category : Technology & Engineering
ISBN : 9780815517115
Why is it important to get to equilibrium and how long does it take? Are there problems running polypropylene profiles on a single screw extruder? Does the job involve compounding color concentrates on a corotating twin screw extruder? This unique reference work is designed to aid operators, engineers, and managers in quickly answering such practical day-to-day questions in extrusion processing. This comprehensive volume is divided into 7 Parts. It contains detailed reference data on such important operating conditions as temperatures, start-up procedures, shear rates, pressure drops, and safety. This reference is a practical guide to extrusion bringing together both the equipment and materials processing aspects. It provides basic and advanced topics about the thermoplastics processing in the extruder, for reference and training. Parts 1 û 3, emphasize the fundamentals, for operators and engineers, of polymeric materials extrusion processing in single and twin screw extruders. Parts 4 û 7 treat advanced topics including troubleshooting, auxiliary equipment, and coextrusion for operators, engineers, and managers. Extensive applications in Part 7 cover such contemporary areas as compounding, blown film, extrusion blow molding, coating, foam, and reprocessing. Each chapter includes review topics.
Author : Bertram Hubert Gregory
Publisher : Unknown
Page : 318 pages
File Size : 40,8 Mb
Release : 2012
Category : Technology & Engineering
ISBN : 1906479089
A practical study of the production and potential of multilayered plastic films This book is written for the industry professional engaged in the development, production or specification of multilayered films for packaging and other industrial applications. It will enable the reader to optimize product performance and evaluate the most cost effective solutions, with useful information on the key polymers and substrates used. Multilayer film structures provide properties and performance which could not be achieved by a single material, whilst also exploiting cheap and easily processed polymers. All three processes described can be used in their manufacture, and in combination they provide yet more options and benefits. One role of this book is to explain when each should be used. This is a practical process manual filled with useful advice for the processor seeking the optimum product, describing the effects of machine design, process variables and materials selection. There is sufficient theory for the student or industry newcomer who wishes to understand how the processes work. Designers and end-users will also find plenty of information on the properties and performance that can be obtained.
Author : B. H. Gregory
Publisher : Trafford Publishing
Page : 218 pages
File Size : 42,6 Mb
Release : 2008-05-28
Category : Technology & Engineering
ISBN : 9781425162733
This comprehensive study of extrusion coating technology describes the process and applications in detail, combining experimental data with computer modeling and the author's 30 years of experience. This methodology provides insight, clarity and assistance in problem solving, process optimization and new product development. The oportunities to exploit a wide range of polymers by the extrusion coater are discussed in detail. These include LDPE, HDPE, PP, ionomers, copolymers and blends and speciality materials, such as EVOH and PET. Everything you wanted to know about: Screw and die design for mono and coextrusion. Chill roll design and winders. Maximizing adhesion at high line speeds:- time in air gap and melt relaxation. Adhesion promotion:- corona, flame, ozone treatment and chemical primers. Feedblock and dual manifold coextrusion compared. Coextrusion:- control layer arrangement and eliminate interfacial instabilities. Optimize melt stability and minimize neck-in in air gap. Material selection:- polyethylenes, copolymers, ionomers, metallocenes, polypropylene etc. Substrates: pulp and paper, aluminium foil, plastic films etc. Applications for extrusion coatings and laminates. Minimize odor and off-taste and the scalping phenomenon in food packaging. Trouble shooting and many more insights. Target Audience: Engineers, marketers, technicians and students involved with the extrusion coating process. Table of Contents: The Extrusion Coating Process Equipment and Screw Design Die Design Stretching Flows and Neck-In Adhesion Coextrusion Adhesion Promotion Methods Polymers for Extrusion Coating: includes, coplymers, ionomers, PP, blends, metallocene PEs Speciality Polymers: EVOH and PET Improving organoleptic properties Substrates and Films for the EXtrusion Coater Extrusion Coated Products and Applications
Author : James F. Carley
Publisher : CRC Press
Page : 584 pages
File Size : 41,9 Mb
Release : 1993-10-08
Category : Technology & Engineering
ISBN : 1566760909
Author : Toshitaka Kanai,Gregory Campbell
Publisher : Carl Hanser Verlag GmbH Co KG
Page : 400 pages
File Size : 46,6 Mb
Release : 2014-07-03
Category : Technology & Engineering
ISBN : 9781569905364
This volume deals with manufacturing processes for preparing very thin polymer products. Many professionals working on polymer films have requested that a newer version of Film Processing be published that includes more recent technologies and addresses the latest literature. Film Processing Advances provides a timely response to these requests. This edition is still a technically oriented book to be used by film processing professionals, graduate students, and researchers and it covers recent technologies of film extrusion, extruder screw design, die design, film structure, film temperature, crystallization dynamics, and film properties. Furthermore, Film Processing Advances focuses on multilayered films and recent developments relating to high performance films. The chapters in this edition are all essentially new and were designed to complement the materials found in Film Processing, which remains a relevant and important information resource.