Download or read book Polyurethane and Related Foams written by Kaneyoshi Ashida and published by CRC Press. This book was released on 2006-09-22 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyurethane and Related Foams: Chemistry and Technology is an in-depth examination of the current preparation, processing, and applications of polyurethanes (PURs) and other polymer foams. Drawing attention to novel raw materials, alternative blowing agents, and new processing methods, the book accentuates recent innovations that meet incre
Download or read book Flexible Polyurethane Foams written by Chris Defonseka and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-08-05 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flexible and viscoelastic polyurethane foams have enormous potential as viable business ventures and have replaced many traditional materials used in everyday life. This book describes the chemistry of flexible and viscoelastic polyurethane foams as well as calculations and formulating methodology for quality production. The author presents detailed information on foam manufacturing, based on over 45 years of hands-on industry experience.
Download or read book Recycling of Polyurethane Foams written by Sabu Thomas and published by William Andrew. This book was released on 2018-06-06 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recycling of Polyurethane Foams introduces the main degradation/depolymerization processes and pathways of polyurethane foam materials, focusing on industrial case studies and academic reviews from recent research and development projects. The book can aid practitioners in understanding the basis of polymer degradation and its relationship with industrial processes, which can be of substantial value to industrial complexes the world over. The main pathways of polymer recycling via different routes and industrial schemes are detailed, covering all current techniques, including regrinding, rebinding, adhesive pressing and compression moulding of recovered PU materials that are then compared with depolymerization approaches. The book examines life cycle assessment and cost analysis associated with polyurethane foams waste management, showing the potential of various techniques. This book will help academics and researchers identify and improve on current depolymerization processes, and it will help industry sustainability professionals choose the appropriate approach for their own waste management systems, thus minimizing the costs and environmental impact of their PU-based end products. Offers a comprehensive review of all polyurethane foam recycling processes, including both chemical and mechanical approaches Assesses the potential of each recycling process Helps industry-based practitioners decide which approach to take to minimize the cost and environmental impact of their end product Enables academics and researchers to identify and improve upon current processes of degradation and depolymerization
Download or read book Flexible Polyurethane Foams written by G. Woods and published by Springer. This book was released on 1982 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polyurethanes written by Mark F. Sonnenschein and published by John Wiley & Sons. This book was released on 2020-12-29 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, cohesively written by an expert author with supreme breadth and depth of perspective on polyurethanes, provides a comprehensive overview of all aspects of the science and technology on one of the most commonly produced plastics. Covers the applications, manufacture, and markets for polyurethanes, and discusses analytical methods, reaction mechanisms, morphology, and synthetic routes Provides an up-to-date view of the current markets and trend analysis based on patent activity and updates chapters to include new research Includes two new chapters on PU recycling and PU hybrids, covering the opportunities and challenges in both
Download or read book Catalysts in Polyurethane Foams written by and published by iSmithers Rapra Publishing. This book was released on 1997 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Szycher s Handbook of Polyurethanes Second Edition written by Michael Szycher, Ph.D and published by CRC Press. This book was released on 2012-07-13 with total page 1147 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical handbook rather than merely a chemistry reference, Szycher's Handbook of Polyurethanes, Second Edition offers an easy-to-follow compilation of crucial new information on polyurethane technology, which is irreplaceable in a wide range of applications. This new edition of a bestseller is an invaluable reference for technologists, marketers, suppliers, and academicians who require cutting-edge, commercially valuable data on the most advanced uses for polyurethane, one of the most important and complex specialty polymers. internationally recognized expert Dr. Michael Szycher updates his bestselling industry "bible" With seven entirely new chapters and five that are revised and updated, this book summarizes vital contents from U.S. patent literature—one of the most comprehensive sources of up-to-date technical information. These patents illustrate the most useful technology discovered by corporations, universities, and independent inventors. Because of the wealth of information they contain, this handbook features many full-text patents, which are carefully selected to best illustrate the complex principles involved in polyurethane chemistry and technology. Features of this landmark reference include: Hundreds of practical formulations Discussion of the polyurethane history, key terms, and commercial importance An in-depth survey of patent literature Useful stoichiometric calculations The latest "green" chemistry applications A complete assessment of medical-grade polyurethane technology Not biased toward any one supplier’s expertise, this special reference uses a simplified language and layout and provides extensive study questions after each chapter. It presents rich technical and historical descriptions of all major polyurethanes and updated sections on medical and biological applications. These features help readers better understand developmental, chemical, application, and commercial aspects of the subject.
Download or read book Polyurethane Foam Sorbents in Separation Science written by Braun and published by CRC Press. This book was released on 2018-01-18 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to present in a monographic and systematised form a review of all the literature devoted to polyurethane-based polymeric sorbents in separation chemistry. The primary types of sorbents dealt with are polyurethane foams and open-pore polyurethanes. The structure of the monograph follows this dichotomy. A book of this nature should stimulate thinking and incite its reader to consult the original literature. It will, however, not make such a consultation superfluous. A fair amount of the results described in this monograph constitute the main activity of investigation which took place in the authors laboratories during the past decade.
Download or read book Fire Toxicity written by A A Stec and published by Elsevier. This book was released on 2010-03-12 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toxic fire effluents are responsible for the majority of fire deaths, and an increasing large majority of fire injuries, driven by the widespread and increasing use of synthetic polymers. Fire safety has focused on preventing ignition and reducing flame spread through reducing the rate of heat release, while neglecting the important issue of fire toxicity. This is the first reference work on fire toxicity and the only scientific publication on the subject in the last 15 years. Assessment of toxic effects of fires is increasingly being recognised as a key factor in the assessment of fire hazards. This book raises important issues including the types of toxic effluents that different fires produce, their physiological effects, methods for generation and assessment of fire toxicity, current and proposed regulations and approaches to modelling the toxic impact of fires. The contributors to Fire toxicity represent an international team of the leading experts in each aspect of this challenging and important field. This book provides an important reference work for professionals in the fire community, including fire fighters, fire investigators, regulators, fire safety engineers, and formulators of fire-safe materials. It will also prove invaluable to researchers in academia and industry. Investigates the controversial subject of toxic effluents as the cause of the majority of fire deaths and injuries Describes the different types of toxic effluents and the specific fires that they produce, their physiological effects and methods for generation Provides an overview of national and international fire safety regulations including current and proposed regulations such as a standardized framework for prediction of fire gas toxicity
Download or read book PUR Facts written by Thea van Oosten and published by Amsterdam University Press. This book was released on 2015-12-15 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flexible Polyurethane (PUR) foams, in use since the 1950s and familiar from furniture upholstery and other domestic textiles, can be found in museum collections in numerous art and design objects. However, these exhibits pose severe conservation problems due to the ageing of the foam caused by photo-oxidation, leading to discoloration, loss of strength and fl exibility, and fi nally the crumbling of the object. This defi nitive work outlines the most up-to-date methods of restoring fl exibility of older foams and protecting new foams from degradation by coating them with stabilising systems acting effectively as a `sunblock. The author, an experienced conservator, describes the research involved in developing the new methods and their impact on the visual, textural and chemical properties of treated PUR foams. One of the chapters details the preparation and application of the light stabilizing system to PUR foams.
Download or read book Spray Polyurethane Foam in External Envelopes of Buildings written by Mark T. Bomberg and published by CRC Press. This book was released on 1998-10-07 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spray Polyurethane Foams in External Envelopes of Buildings presents, for the first time, a book focused on both the theoretical and practical design and applications of spray polyurethane foam (SPF) use. To review the moisture performance of SPF, this book focuses on the design of an assembly where moisture is kept from accumulating and causing deterioration (flow through approach). In this approach, Spray Polyurethane Foam presents two unique parts of theory and practice of various SPF products. FROM THE PREFACE Part 1 of this monograph analyzes SPF performance as the material (product). Being field fabricated, installation of SPF products must include a quality assurance program . . . Laboratory evaluation of foams and their coverings, quality management issues, and quantification of the technical support provided to the SPF contractor are also reviewed. Part 2 presents a systems approach to construction. Starting with principles of environmental control of buildings, different aspects of design and performance of roofing and wall systems are reviewed. Details and design recommendations . . . as well as case studies . . . are included.
Download or read book Polymeric Foams written by Shau-Tarng Lee and published by CRC Press. This book was released on 2004-05-27 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the inaugural volume a series entitled Polymeric Foams: Technology and Applications. Generally, thermoplastic and thermoset foams have been treated as two separate practices in industry. Polymeric Foams: Mechanisms and Materials presents the basics of foaming in general build a strong foundation to those working in both thermoplastic a
Download or read book Polyurethane Foam Sorbents in Separation Science written by Braun and published by CRC Press. This book was released on 2018-01-18 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to present in a monographic and systematised form a review of all the literature devoted to polyurethane-based polymeric sorbents in separation chemistry. The primary types of sorbents dealt with are polyurethane foams and open-pore polyurethanes. The structure of the monograph follows this dichotomy. A book of this nature should stimulate thinking and incite its reader to consult the original literature. It will, however, not make such a consultation superfluous. A fair amount of the results described in this monograph constitute the main activity of investigation which took place in the authors laboratories during the past decade.
Download or read book The ICI Polyurethanes Book written by George Woods and published by . This book was released on 1990-12-11 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: User-friendly, even for those with limited knowledge of chemistry, it contains clear details of processing, applications, and safety. New to this edition is an appendix covering the considerable progress that has taken place since 1987, including the development of alternatives for chlorofluorocarbons (CFCs) and the advent of polyurea elastomers.
Download or read book Polyurethane Chemistry written by Ram K. Gupta and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is about Polyurethane Chemistry: Renewable Polyols and Isocyanates"--
Download or read book Practical Guide to Flexible Polyurethane Foams written by Chris Defonseka and published by Smithers Rapra Technology. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyurethanes are very versatile and exciting materials of the plastics family. Although there are many types, the flexible and viscoelastic foams have opened up vast possibilities as viable business ventures and expanding applications, and have established themselves as an essential part of daily life, replacing traditional materials over the years. This book imparts a sound knowledge of flexible and viscoelastic polyurethane foams from their chemistry to calculations and formulating methodology for quality production. The author presents very valuable detailed information on foam manufacturing based on more than 40 years hands-on experience in the local and international situations. The detailed presentation of two manufacturing setups will greatly benefit entrepreneurs, medium-volume producers and large-volume manufacturers. For entrepreneurs, the innovative low-cost startup, high-profit, tried and tested methods will be very encouraging. The medium-to-large-volume producers will find the information provided interesting and practical to solve the inherent problems of excess wastage, better process control and plant efficiency, thereby enhancing profitability. Due to global environmental concerns, as polyurethane chemical components move from petroleum sources to bio-based renewable resources, developers are facing interesting challenges. For continued profitable production, challenges facing the foam machinery manufacturers will be to offer cost-effective, highly efficient and compatible machinery to producers. This book provides practical guidance in all aspects of the manufacture of flexible polyurethane foams, and is an ideal information source for students, teachers, producers and entrepreneurs.
Download or read book Linear Polyurethanes written by Piotr Król and published by CRC Press. This book was released on 2008-03-27 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes in detail the mechanisms of the diisocyanates and polyols polyaddition process as well as its kinetic and process aspects important for obtaining linear polyurethanes. General kinetics of the process and its experimental verification, using GPC chromatography as well as NMR spectroscopy and MALDI-ToF spectrometry, are presented. Accompanied by over 400 references, the author presents synthesis methods, physicochemical properties of linear polyurethanes (analyzed with DCS, TG, DMTA, Rtg, AFM microscopy methods) as semiproducts for foams, elastomers, lacquers and coatings. Research results concerning free surface energy of the polyurethane coatings are also presented. Special attention is given to the latest polyurethane applications, such as ecological waterborne dispersions, biodegradation resistant elastomers and coatings used as medical implants and binders for ceramic powder materials. Moreover, the book contains information on urethane-isocyanate prepolymers applications, which are potential semifinished products for elastomers, foams, coatings, adhesives and interpenetrating polymer network composites.
