Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Extrusion Processing Of Low Density Microcellular Foams
Download Extrusion Processing Of Low Density Microcellular Foams full books in PDF, epub, and Kindle. Read online Extrusion Processing Of Low Density Microcellular Foams ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author :Amir Hossein Behravesh Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612351103 Total Pages : pages Book Rating :4.3/5 (511 download)
Book Synopsis Extrusion Processing of Low-density Microcellular Foams [microform] by : Amir Hossein Behravesh
Download or read book Extrusion Processing of Low-density Microcellular Foams [microform] written by Amir Hossein Behravesh and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Extrusion Processing of Low-density Microcellular Foams by :
Download or read book Extrusion Processing of Low-density Microcellular Foams written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :John W. S. (John Won S.) Lee Publisher :Library and Archives Canada = Bibliothèque et Archives Canada ISBN 13 :9780612954939 Total Pages :194 pages Book Rating :4.9/5 (549 download)
Book Synopsis Extrusion Processing for Manufacture of Low-density Microcellular Polycarbonate Foams Uing CO↓2 [microform] by : John W. S. (John Won S.) Lee
Download or read book Extrusion Processing for Manufacture of Low-density Microcellular Polycarbonate Foams Uing CO↓2 [microform] written by John W. S. (John Won S.) Lee and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2004 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the effective strategies for increasing the volume expansion ratio and the cell density of polycarbonate foams. The basic strategies are: (a) to use sufficiently high pressure all through the extrusion system; (b) to use branched material; (c) to use high pressure drop rate at the die exit; (d) to use sufficiently high contents of CO 2; (e) to optimize the processing temperature. The effects of processing and material parameters on foam morphologies were thoroughly studied using a single-screw tandem foam extrusion system. By tailoring the processing and material parameters, polycarbonate foams with an expansion ratio of up to 19 times with a cell density over 1010 cells/cm3 were successfully produced. A continuous extrusion process for the manufacture of low-density microcellular polycarbonate (PC) foams using CO2 is presented. Due to its outstanding mechanical properties and high thermal resistance, polycarbonate foams have been considered as a candidate that will broaden the applications of foams in new industrial areas with high temperature environments.
Download or read book Foam Extrusion written by S.-T. Lee and published by CRC Press. This book was released on 2014-04-07 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combining the science of foam with the engineering of extrusion processes, Foam Extrusion: Principles and Practice delivers a detailed discussion of the theory, design, processing, and application of degradable foam extraction. In one comprehensive volume, the editors present the collective expertise of leading academic, research, and industry specialists while laying the scientific foundation in such a manner that the microscopic transition from a nucleus to a void (nucleation) and macroscopic movement from a void to an object (formation) are plausibly addressed. To keep pace with significant improvements in foam extrusion technology, this Second Edition: Includes new chapters on the latest developments in processing/thermal management, rheology/melt strength, and biodegradable and sustainable foams Features extensive updates to chapters on extrusion equipment, blowing agents, polyethylene terephthalate (PET) foam, and microcellular innovation Contains new coverage of cutting-edge foaming mechanisms and technology, as well as new case studies, examples, and figures Capturing the interesting evolution of the field, Foam Extrusion: Principles and Practice, Second Edition provides scientists, engineers, and product development professionals with a modern, holistic view of foam extrusion to enhance research and development and aid in the selection of the optimal screw, die design, and foaming system.
Book Synopsis Extrusion Processing of Low-bulk Density, Microcellular, Open-cell Thermoplastic Foams by : Chang-Dong Patrick Lee
Download or read book Extrusion Processing of Low-bulk Density, Microcellular, Open-cell Thermoplastic Foams written by Chang-Dong Patrick Lee and published by . This book was released on 2006 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to promote a deeper understanding of the cell opening behavior during foaming, a failure analysis of a cell wall was performed according to the Considere and Failure criteria using the uniaxial experimental data of a polymer melt. A theoretical approach to prediction of the cell wall rupture moment was proposed using two adjacent cubic-shaped cells. This concept was further extended to arrive at an estimation of the minimum threshold diameter of a foam extrudate to produce an open-cell foam structure. A continuous extrusion process for the manufacture of low-density, microcellular, open-cell thermoplastic foams is presented using a single-screw tandem extrusion foaming system. Fundamental studies have been conducted to investigate the effects of various processing parameters and materials compositions on the basic properties (i.e., extensional behavior, solubility, diffusivity, and initial foam extrudate shape) of plastic melts and melt/gas solutions that influence the cell morphologies of thermoplastic foams. The observed phenomena were essential in understanding and devising the processing strategies to achieve a desired foam structure. Based on the fundamental studies, this thesis presents the basic strategies for promoting a low-density, microcellular, open-cell thermoplastic foam. The effects of polymer blending, additives, processing temperature, blowing agent content, die geometry, and surface quenching on the final foam morphologies were thoroughly investigated to verify the proposed strategies. By tailoring the material compositions and processing conditions, low-density (>10 fold), microcellular (109 cells/cm 3), open-cell (>95%) thermoplastic foams were successfully achieved. Furthermore, a procedure for estimating gas loss from a foam structure was proposed in order to understand the effect of gas loss during open-cell content measurement using a gas pycnometer, and the corresponding open-cell content errors were calculated.
Book Synopsis Development of Microcellular Foam Sheet Extrusion Systems by : Anthony Kwok-Fu Yeung
Download or read book Development of Microcellular Foam Sheet Extrusion Systems written by Anthony Kwok-Fu Yeung and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a continuous extrusion process for manufacturing low-density, microcellular polystyrene foam sheets using carbon dioxide as a blowing agent. Microcellular polymer foams are characterized by a cell density greater than 10$\sp9$ cells/cm$\sp3$ and a cell size on the order of 10 $\mu$m. To date, most research on the continuous processing of microcellular polymer foams has focused on nucleation and cell growth phenomena. Little work has been done on their shaping aspect. Two extrusion systems; namely, a single-screw extrusion system and a tandem extrusion system with two die designs were used in this research. The systems were designed and analyzed based on an axiomatic design framework. Detailed design and construction of their components, which include an extruder screw for the second extruder, dies, a diffusion enhancing device, a heat exchanger, a cooling mandrel, and a take-up roll system, were carried out subsequently. Critical experiments were conducted to evaluate the performance of the systems. PS foam sheets with a cell density in the range of 10$\sp9$ to 10$\sp#x10;$ cells/cm$\sp3,$ a controlled volume expansion ratio in the range of 2.1 to 17.9, and a uniform sheet thickness were successfully obtained from the designed tandem foam extrusion system.
Book Synopsis Extrusion Processing for Manufacture of Low-density, Fine-celled Polypropylene Foams by :
Download or read book Extrusion Processing for Manufacture of Low-density, Fine-celled Polypropylene Foams written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Hani E. (Hani Effat) Naguib Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612637139 Total Pages :386 pages Book Rating :4.6/5 (371 download)
Book Synopsis Extrusion Processing for Manufacture of Low-density, Fine-celled Polypropylene Foams [microform] by : Hani E. (Hani Effat) Naguib
Download or read book Extrusion Processing for Manufacture of Low-density, Fine-celled Polypropylene Foams [microform] written by Hani E. (Hani Effat) Naguib and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2001 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Extrusion Processing for Manufacture of Low-density, Fine-celled Polypropylene Foams by : Hani E. Naguib
Download or read book Extrusion Processing for Manufacture of Low-density, Fine-celled Polypropylene Foams written by Hani E. Naguib and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A continuous extrusion process for the manufacture of low-density, fine-celled polypropylene foams is presented. Due to its outstanding functional characteristics and low material cost, polypropylene foams have been considered as a substitute for other thermoplastic foams in industrial applications. However, only limited research has been conducted on the production of polypropylene foams because of the weak melt strength, and no research has been conducted to investigate the mechanisms that govern the expandability of polypropylene foams. This thesis presents the effective strategies for increasing the volume expansion ratio as well as the mechanisms governing the foam density of polypropylene foams. The basic strategies taken in this study for the promotion of a large volume expansion ratio of polypropylene foams are: (a) to use a branched material for preventing cell coalescence; (b) to use a long-chain blowing agent with low diffusivity; (c) to lower the melt temperature for decreasing gas loss during expansion; and (d) to optimize the processing conditions in the die for avoiding premature crystallization. The effects of processing and materials parameters on the foam morphologies of polypropylene materials were thoroughly studied using a single-screw tandem foam extrusion system. A careful analysis of extended experimental results obtained at various processing conditions indicates that the final volume expansion ratio of the extruded polypropylene foams blown with butane is governed either by loss of blowing agent or by crystallization of the polymer matrix. By tailoring the processing conditions in the die, ultra low-density, fine-celled polypropylene foams with very high expansion ratio up to 90-fold were successfully produced from the branched polypropylene resins. Fundamental studies have also been conducted to investigate the effect of various processing and materials parameters on the thermodynamic, thermal and melt fracture behaviors of polypropylene melts with foaming additives that influence the cell morphology of polypropylene foams.
Download or read book Extrusion written by Harold F. Giles Jr and published by William Andrew. This book was released on 2013-09-21 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Thermoplastic Foam Processing by : Richard Gendron
Download or read book Thermoplastic Foam Processing written by Richard Gendron and published by CRC Press. This book was released on 2004-10-28 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: As researchers seek replacements for banned, ozone-depleting foaming agents, the authors of Thermoplastic Foam Processing: Principles and Development strive to develop a better understanding of foaming processes and find solutions for day-to-day practice. This book presents the latest research in foam extrusion and physical foaming agents with a st
Download or read book Polymeric Foams written by Shau-Tarng Lee and published by CRC Press. This book was released on 2016-11-03 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric foams are sturdy yet lightweight materials with applications across a variety of industries, from packaging to aerospace. As demand for these materials increase, so does innovation in the development of new processes and products. This book captures the most dynamic advances in processes, technologies, and products related to the polymeric foam market. It describes the latest business trends including new microcellular commercialization, sustainable foam products, and nanofoams. It also discusses novel processes, new and environmentally friendly blowing agents, and the development and usage of various types of foams, including bead and polycarbonate, polypropylene, polyetherimide microcellular, and nanocellular. The book also covers flame-retardant foams, rigid foam composites, and foam sandwich composites and details applications in structural engineering, electronics, and insulation. Authored by leading experts in the field, this book minimizes the gap between research and application in this important and growing area.
Book Synopsis Extrusion Cooking by : Girish M. Ganjyal
Download or read book Extrusion Cooking written by Girish M. Ganjyal and published by Elsevier. This book was released on 2020-07-25 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extrusion Cooking provides a detailed description of extrusion processing with an in-depth exploration of cereal grains processing. In particular, the book addresses the basic principles of extrusion processing, various extruder parts and their design principles, food ingredients and their characteristics as they relate to extrusion. It also discusses physicochemical changes in the different ingredient components as they are processed in an extruder, modeling and control of extrusion process, scale-up aspects, extrusion plant design, food safety in extrusion, new advancements in extrusion, and a look into the future of extrusion. This valuable text serves as a one-volume reference on extrusion processing for food industry professionals and students. Covers the engineering, chemistry, nutrition, and food safety aspects of extrusion cooking Presents both the fundamental and applied aspects of extrusion processing Details the extrusion of whole-grain, high-fiber, and high-protein foods Covers both expanded and texturized products Outlines extrusion processing of different ingredients Addresses new technologies that have expanded the extruder capabilities Analyzes new developments in the area of modeling of extrusion processing
Book Synopsis Polylactide Foams by : Mohammadreza Nofar
Download or read book Polylactide Foams written by Mohammadreza Nofar and published by William Andrew. This book was released on 2017-09-18 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polylactide Foams: Fundamentals, Manufacturing, and Applications provides an introduction to the fundamental science behind plastic foams, polylactic acid) and polylactide foaming, giving designers tactics to replace traditional resins with sustainable and biodegradable materials. The book then delves deeper into the technology behind PLA foaming, such as PLA/gas mixture characteristics, solubility, interfacial tension behaviors and crystallization kinetics of various types of PLA and their compounds. The foaming behaviors and mechanisms of various types of PLA and PLA compounds are extensively analyzed and discussed through different manufacturing technologies, namely extrusion foaming, foam injection molding and bead foaming. Interest in Poly(lactic acid) and PLA foams is extremely high – particularly as a potential replacement for styrenic resins – and the price of PLA resin is lower than ever before. This biopolymer has significant potential to improve the sustainability of the plastics industry. Polylactide Foams have a range of potential applications, such as in construction, packaging, insulation, biomedical scaffolds, and others. However, processing and performance of PLA are not at the same level as other non-biodegradable resins. Introduces the concepts behind foaming, poly(lactic acid) and PLA foaming Supports further research and development in PLA foams by covering the state-of-the-art in different manufacturing and processing methods Provides practical guidance for materials scientists and engineers in industry looking to replace traditional polymer resins with a sustainable, biodegradable alternative
Download or read book Polymeric Foams written by S.-T. Lee and published by CRC Press. This book was released on 2022-05-18 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric Foams: Innovations in Technologies and Environmentally Friendly Materials offers the latest in technology and environmental innovations within the field of polymeric foams. It outlines how application-focused research in polymeric foam can continue to improve living quality and enhance social responsibility. This book: Addresses technological innovations including those in bead foams, foam injection molding, foams in tissue engineering, foams in insulation, and silicon rubber foam Discusses environmentally friendly innovations in PET foam, degradable and renewable foam, and physical blowing agents Describes principles as well as applications from internationally recognized foam experts This work is aimed at researchers and industry professionals across chemical, mechanical, materials, polymer engineering, and anyone else developing and applying these advanced polymeric materials.
Book Synopsis Foaming with Supercritical Fluids by : Ernesto Di Maio
Download or read book Foaming with Supercritical Fluids written by Ernesto Di Maio and published by Elsevier. This book was released on 2021-11-06 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foaming with Supercritical Fluids, Volume Nine provides a comprehensive description of the use of supercritical fluids as blowing agents in polymer foaming. To this aim, the fundamental issues on which the proper design and control of this process are rooted are discussed in detail, with specific attention devoted to the theoretical and experimental aspects of sorption thermodynamics of a blowing agent within a polymer, the effect of the absorbed blowing agent on the thermal, interfacial and rheological properties of the expanding matter, and the phase separation of the gaseous phase, and of the related bubble nucleation and growth phenomena. Several foaming technologies based on the use of supercritical blowing agents are then described, addressing the main issues in the light of the underlying chemical-physical phenomena. Offers strong fundamentals on polymer properties important on foaming Outlines the use of supercritical fluids for foaming Covers theoretical points-of-view, including foam formation of the polymer/gas solution to the setting of the final foam Discusses the several processing technologies and applications
Book Synopsis Kirk-Othmer Chemical Technology and the Environment, 2 Volume Set by : Wiley
Download or read book Kirk-Othmer Chemical Technology and the Environment, 2 Volume Set written by Wiley and published by John Wiley & Sons. This book was released on 2007-05-21 with total page 2597 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume reference work Chemical Technology and the Environment provides readers with knowledge on contemporary issues in environmental pollution, prevention and control, as well as regulatory, health and safety issues as related to chemical technology. It introduces and expands the knowledge on emerging "green" materials and processes and "greener" energy technology, as well as more general concepts and methodology including sustainable development and chemistry and green chemistry. Based on Wiley's renowned, Kirk-Othmer Encyclopedia of Chemical Technology, this compact reference features the same breadth and quality of coverage and clarity of presentation found in the original.
![Download Extrusion Processing of Low-density Microcellular Foams [microform] PDF Online Free](https://books.google.com/books/content/images/frontcover/-E4svwEACAAJ?fife=w200-h370)
![Download Extrusion Processing for Manufacture of Low-density Microcellular Polycarbonate Foams Uing CO↓2 [microform] PDF Online Free](https://books.google.com/books/content/images/frontcover/V9ibtgAACAAJ?fife=w200-h370)
![Download Extrusion Processing for Manufacture of Low-density, Fine-celled Polypropylene Foams [microform] PDF Online Free](https://books.google.com/books/content/images/frontcover/HM0CAgAACAAJ?fife=w200-h370)
