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Author: Anthony Chi-Ying Wong Publisher: ISBN: 9781569908693 Category : Languages : en Pages : 165
Book Description
Industrial processes involving handling of solid raw materials are highly dependent on our understanding of the fundamental characteristics and properties of the starting solid materials, as well as whether or not the related process hardware and operation are properly designed and optimized. This is true of almost all plastics manufacturing processes since particulate solids handling is the most elementary processing step. This book provides a broad understanding of powder technology and the significance of particulate solid characteristics that are applicable to plastics manufacturing processes. It focuses on the particular characteristics of solid materials relevant to plastics manufacturing processes. Applications of engineering principles based on the selected solid characteristics which illustrate the uniqueness of the subject are also included. The useful and practical information within offers engineers solutions to otherwise unclear problems commonly encountered in industry. The selected examples of research investigations provided should also inspire readers to formulate further fundamental as well as applied research studies on the inter- and intra-relationship between powder technology and plastics processing technology.
Author: Anthony Chi-Ying Wong Publisher: ISBN: 9781569908693 Category : Languages : en Pages : 165
Book Description
Industrial processes involving handling of solid raw materials are highly dependent on our understanding of the fundamental characteristics and properties of the starting solid materials, as well as whether or not the related process hardware and operation are properly designed and optimized. This is true of almost all plastics manufacturing processes since particulate solids handling is the most elementary processing step. This book provides a broad understanding of powder technology and the significance of particulate solid characteristics that are applicable to plastics manufacturing processes. It focuses on the particular characteristics of solid materials relevant to plastics manufacturing processes. Applications of engineering principles based on the selected solid characteristics which illustrate the uniqueness of the subject are also included. The useful and practical information within offers engineers solutions to otherwise unclear problems commonly encountered in industry. The selected examples of research investigations provided should also inspire readers to formulate further fundamental as well as applied research studies on the inter- and intra-relationship between powder technology and plastics processing technology.
Author: M. Narkis Publisher: John Wiley & Sons ISBN: Category : Science Languages : en Pages : 656
Book Description
Low shear polymer powder processing provides unique solutions to many processing problems and offers a set of production techniques, frequently un-paralleled by other production methods. In recent years there has been increased interest in this field but no comprehensive review of the subject has been available until now. In this book, a team of experts have taken the novel approach of treating several processing techniques, such as compacted powder sintering, rotational moulding, powder coating, ram extrusion, and compression moulding, as diverse implementations of a single technology. The first chapters deal with the scientific and engineering fundamentals shared by various polymer powder processing techniques, and are followed by a detailed examination of each technique and some special effects. Polymer Powder Technology will prove invaluable to technologists, plastics and materials engineers, researchers and students working with various aspects of particulate polymer processing.
Author: Klementina Khait Publisher: CRC Press ISBN: 9781420015010 Category : Technology & Engineering Languages : en Pages : 212
Book Description
From the Preface This book is the first extended look at a new and multifaceted polymer processing technology that has already been discussed in numerous articles. Called Solid-State Shear Pulverization (S3P), this innovative process produces polymeric powders with unique physical properties not found in the output of conventional size-reduction methods.... This technology, which utilizes a pulverizer based on a modified co-rotating twin-screw extruder..., has profound implications for both the creation of new polymer blends and recycling of plastic and rubber waste. Unlike [earlier processes] where polymers are melted prior to pulverization, ...pulverizing mixtures of polymers with the S3P process...does not involve melting. By contrast, S3P maintains polymers in the solid state and avoids the additional heat history that occurs during [other processes], which can be detrimental to the physical properties of pulverized materials. The research and development of the S3P technology...has grown significantly since 1990 from the development of a new plastics recycling process to a much broader polymer processing method that allows intimate mixing of polymers with very different viscosities, sold-state dispersion of additives, including pigments, and continuous production of powder with unique shapes and larger surface areas. Polymeric powders are of growing importance to plastics processors due to the increase use of plastics in various applications, such as rotational molding, powder coatings, and compounding, which require powder as the feedstock. ...[I]t has become clear that this process allows for in-situ compatibilization of dissimilar polymers by applying mechanical energy to cause chemical reactions. This aspect of S3P technology that we describe in this book should [be useful in] developing new polymer blends with the use of pre-made compatibilizing agents. In addition, it has been discovered that S3P efficiently mixes polymer blends with different component viscosities, resulting in the elimination of phase inversion. The S3P process directly produces blends with matrix and dispersed phase morphology like those obtained after phase inversion during a long melt-mixing process. This phenomenon is of practical importance because a long processing time is required by conventional melt-mixing to produce a stable blend morphology. S3P is also advantageous for producing thermoplastic or thermoset powder-coating compounds in a one-step process as opposed to a conventional multi-step operation that involves melt extrusion followed by batch grinding. The major capabilities of this new process can be summarized as follows: o Continuous powder production from plastics or rubber feedstocks o Blending of immiscible polymers o Efficient mixing of polymers with unmatched viscosities o Environmentally friendly recycling of multicolored, commingled plastics waste o Sold-state dispersion of heat-sensitive additives o Engineered plastic/rubber blends Materials and processes well illustrated The text is well illustrated with 60 photographs, micrographs, diagrams and others figures. Here is a small sampling of the captions of these figures. o Particle-size distribution for virgin LDPE powder made with PT-25 pulverizer o Optical photograph of virgin LDPE powder made with PT-25 pulverizer o Layout for a three-stage rubber pulverizer o Flow chart for powder coating production by conventional process and with new S3P technology o SEM image of pulverized virgin PP at 40X (first in series of SEM images of polymer powders) o Optical micrograph of melt-crystallized thin films of unpulverized virgin PP under polarized light o Log of viscosity vs. log shear rate for virgin HDPE after S3P processing o Gel permeation chromatograms (GPC) of polystyrene subjected to S3P processing Color-photo section One of the several functions of Solid-State Shear Pulverization technology is recycling mixed plastic waste. This section of twenty full-color photographs and micrographs illustrates different processed materials, as well as the machinery and mixed waste used. Here is a small sampling of the photo and micrograph captions. o Resultant flake feedstock from granulation o S3P-made uniform powder from feedstock o Flake feedstock of post-consumer HDPE/PP blend (90/10 ratio) o Injection-molded test bar (with translucence) made from S3P powder without pelletization o Injection-molded test bar made from S3P powder without pelletization showing uniform color o Several test bars subjected to tensile testing showing exceptionally high elongation at break Useful reference data in tables More than 60 tables provide useful data in convenient form. Here is a small sampling of table captions. o Physical properties of virgin PP 8020 GU injection-molded from S3P-made powder (first in series of tables on physical properties of various plastics processed from S3P-made powder) o Sieve analysis of powder resulting from S3P of virgin LDPE 509.48 (one of series of tables on sieve analysis of polymer powders) o Melt-flow rate before and after S3P processing for virgin PS and two PP samples o Key physical properties of injection-molded post-consumer polyolefin blends pulverized by S3P process The Authors Klementina Khait, M.S. Ch.E., Ph.D., is Research Associate Professor and Director of the Polymer Technology Center in the Department of Chemical Engineering, Northwestern University. Her industrial experience in polymer science and engineering includes work with Borg-Warner Chemicals and Quantum Chemical Corporation. She received her two advanced degrees, in chemical engineering and polymer chemistry, from the Technological Institute, St. Petersburg, Russia. Dr. Khait holds several patents and has published more than 50 papers in scientific and technical journals. Stephen Carr, Ph.D., is Professor of Materials Science and Engineering and Chemical Engineering at Northwestern University. His industrial work includes work in polymer science and engineering with General Motors Corp. He received a doctorate in polymer science from Case Western Reserve University. He has been on the Northwestern University faculty since 1969. Martin H. Mack is Vice President for R&D with the Berstorff Division of Krauss-Maffei Corporation. He holds an engineering degree from the University of Stuttgart. He has served for more than ten years on the Board of Directors of the Society of Plastics Engineers (SPE).
Author: Guo Sheng Gai Publisher: Trans Tech Publications Ltd ISBN: 3038133108 Category : Technology & Engineering Languages : en Pages : 244
Book Description
Volume is indexed by Thomson Reuters CPCI-S (WoS) The technological demands on powder-processing of new materials, and on the associated resources, have reached a particularly prosperous state. Many types of industrial material processed using powder technology become the basis of important new materials, including those used in: building, papermaking, plastics, coatings, energy-use, environmental protection, etc. The cost and quality of raw industrial powder materials have a direct effect upon costs, benefits and market competitivity.
Author: Hiroaki Masuda Publisher: CRC Press ISBN: 1420044133 Category : Science Languages : en Pages : 412
Book Description
Drawing from the third edition of the bestselling Powder Technology Handbook, this book concentrates on handling methods and unit operations for powder and particle processing techniques. Itexamines the purpose and factors involved in each process-including planning, equipment, measurements, and other necessary considerations. This book c
Author: Publisher: ISBN: Category : Languages : en Pages : 244
Book Description
The technological demands on powder-processing of new materials, and on the associated resources, have reached a particularly prosperous state. Many types of industrial material processed using powder technology become the basis of important new materials, including those used in: building, papermaking, plastics, coatings, energy-use, environmental protection, etc. The cost and quality of raw industrial powder materials have a direct effect upon costs, benefits and market competitivity. This collection of peer-reviewed papers focuses on powder preparation and new materials, as related to industrial applications. Most of the papers concentrate on the topics of nano-powder preparation and application to new materials, and powder-processing technology as applied to chemicals and minerals. This makes the book an invaluable guide to the state-of-the-art of this field.
Author: Don Rosato Publisher: Momentum Press ISBN: 1606500848 Category : Technology & Engineering Languages : en Pages : 1024
Book Description
This comprehensive handbook provides a simplified, practical and innovative approach to understanding the design and manufacture of plastic products. It will expand the reader's understanding of plastics technology by defining and focusing on past, current, and future technical trends. The content is presented so that both technical and nontechnical readers can understand the interrelationships of materials to processes. Different plastic products are examined and their related critical factors are shown, from meeting performance requirements in different environments, to reducing costs and targeting for zero defects. Examples used include small to large, and simple to complex shapes. Information is included on static properties (tensile, flexural), dynamic properties (creep, fatigue, impact) and physical and chemical properties. Extensive reference sources and useful data and physical and chemical constants are also provided. Volume 2 offers detailed coverage of most major plastics processing techniques, including injection molding, extrusion, blow molding, and thermoforming.
Author: Muralisrinivasan Subramanian Publisher: Momentum Press ISBN: 1606505831 Category : Technology & Engineering Languages : en Pages : 111
Book Description
Basics of Polymers: Fabrication and Processing Technology constitutes one of the most important aspects of polymer science and technology. The performance of polymers is evolving into the most rapidly increasing volume of production. Polymers are an important commodity in the modern lifestyle. They are undoubtedly superior materials in terms of their costs, processability, and functional properties. The fabrication and processing technology are showing higher growth than that of the number of polymer grades in the market. This book is a noteworthy text in the increasingly important field of plastics processing and should be of great interest, particularly to those in processing. It is a practical handbook, intended for students, engineers, and those involved in plastics processing. Education and training of personnel are of para- mount importance throughout the book which brings to light a whole host of career opportunities not usually considered for engineers and processors. This book is particularly valuable to all processors/educators as a resource that answers frequently asked questions.
Author: Nicholas P. Cheremisinoff Publisher: CRC Press ISBN: 1000105350 Category : Technology & Engineering Languages : en Pages : 808
Book Description
"Offers detailed coverage of applied polymer processing--presenting a wide range of technologies and furnishing state-of-the-art data on polymer components, properties, and processibility. Reviews fundamental rheological concepts. Contains over 1600 bibliographic citations, some 450 equations, and over 400 tables, drawings, and photographs."
Author: Charles A. Harper Publisher: John Wiley & Sons ISBN: 0471786578 Category : Technology & Engineering Languages : en Pages : 755
Book Description
An outstanding and thorough presentation of the complete field of plastics processing Handbook of Plastic Processes is the only comprehensive reference covering not just one, but all major processes used to produce plastic products-helping designers and manufacturers in selecting the best process for a given product while enabling users to better understand the performance characteristics of each process. The authors, all experts in their fields, explain in clear, concise, and practical terms the advantages, uses, and limitations of each process, as well as the most modern and up-to-date technologies available in their application. Coverage includes chapters on: Injection molding Compression and transfer molding Sheet extrusion Blow molding Calendering Foam processing Reinforced plastics processing Liquid resin processing Rotational molding Thermoforming Reaction injection molding Compounding, mixing, and blending Machining and mechanical fabrication Assembly, finishing, and decorating Each chapter details a particular process, its variations, the equipment used, the range of materials utilized in the process, and its advantages and limitations. Because of its increasing impact on the industry, the editor has also added a chapter on nanotechnology in plastics processing.
Author: Anthony Chi-Ying Wong
Author: Anthony Chi-Ying Wong
Author: M. Narkis
Author: Klementina Khait
Author: Guo Sheng Gai
Author: Hiroaki Masuda
Author: 
Author: Don Rosato
Author: Muralisrinivasan Subramanian
Author: Nicholas P. Cheremisinoff
Author: Charles A. Harper