Recycling of Polyurethane Wastes

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Author :
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110641267
Total Pages : 213 pages
Book Rating : 4.1/5 (16 download)

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Book Synopsis Recycling of Polyurethane Wastes by : Mir Mohammad Alavi Nikje

Download or read book Recycling of Polyurethane Wastes written by Mir Mohammad Alavi Nikje and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-03-18 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates processes to reduce environmental pollution and polyurethane (PU) waste going to landfill. The author explains recycling approaches as well as instrumental methods such as nuclear magnetic resonance (NMR) spectroscopy and Fourier-Transform infrared spectroscopy for characterization and identification of PU recycling products.

Recycling of Polyurethane Foams

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Author :
Publisher : William Andrew
ISBN 13 : 0323511341
Total Pages : 147 pages
Book Rating : 4.3/5 (235 download)

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Book Synopsis Recycling of Polyurethane Foams by : Sabu Thomas

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

Recycling of Polyurethane Wastes

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Author :
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110641593
Total Pages : 150 pages
Book Rating : 4.1/5 (16 download)

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Book Synopsis Recycling of Polyurethane Wastes by : Mir Mohammad Alavi Nikje

Download or read book Recycling of Polyurethane Wastes written by Mir Mohammad Alavi Nikje and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-03-18 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates processes to reduce environmental pollution and polyurethane (PU) waste going to landfill. The author explains recycling approaches as well as instrumental methods such as nuclear magnetic resonance (NMR) spectroscopy and Fourier-Transform infrared spectroscopy for characterization and identification of PU recycling products.

Polyurethane Polymers: Blends and Interpenetrating Polymer Networks

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Author :
Publisher : Elsevier
ISBN 13 : 0128040858
Total Pages : 440 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Polyurethane Polymers: Blends and Interpenetrating Polymer Networks by : Sabu Thomas

Download or read book Polyurethane Polymers: Blends and Interpenetrating Polymer Networks written by Sabu Thomas and published by Elsevier. This book was released on 2017-08-15 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyurethane Polymers: Blends and Interpenetrating Networks deals with almost all aspects of blends and IPNs formed by polyurethane, including the thermal, mechanical, morphological, and viscoelastic properties of each blend presented in the book. In addition, major applications related to these blends and IPNs are mentioned. Provides an elaborate coverage of the chemistry of polyurethane, including its synthesis and properties Includes available characterization techniques Relates types of polyurethanes to their potential properties Discusses blends options

Feedstock Recycling of Plastic Wastes

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Author :
Publisher : Royal Society of Chemistry
ISBN 13 : 1847550800
Total Pages : 205 pages
Book Rating : 4.8/5 (475 download)

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Book Synopsis Feedstock Recycling of Plastic Wastes by : Jose Aguado

Download or read book Feedstock Recycling of Plastic Wastes written by Jose Aguado and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of plastic materials has seen a massive increase in recent years, and generation of plastic wastes has grown proportionately. Recycling of these wastes to reduce landfill disposal is problematic due to the wide variation in properties and chemical composition among the different types of plastics. Feedstock recycling is one of the alternatives available for consideration, and Feedstock Recycling of Plastic Wastes looks at the conversion of plastic wastes into valuable chemicals useful as fuels or raw materials. Looking at both scientific and technical aspects of the recycling developments, this book describes the alternatives available. Areas include chemical depolymerization, thermal processes, oxidation and hydrogenation. Besides conventional treatments, new technological approaches for the degradation of plastics, such as conversion under supercritical conditions and coprocessing with coal are discussed. This book is essential reading for those involved in plastic recycling, whether from an academic or industrial perspective. Consultants and government agencies will also find it immensely useful.

Plastic Waste and Recycling

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Author :
Publisher : Academic Press
ISBN 13 : 0128178817
Total Pages : 686 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Plastic Waste and Recycling by : Trevor M. Letcher

Download or read book Plastic Waste and Recycling written by Trevor M. Letcher and published by Academic Press. This book was released on 2020-03-10 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plastic Waste and Recycling: Environmental Impact, Societal Issues, Prevention, and Solutions begins with an introduction to the different types of plastic materials, their uses, and the concepts of reduce, reuse and recycle before examining plastic types, chemistry and degradation patterns that are organized by non-degradable plastic, degradable and biodegradable plastics, biopolymers and bioplastics. Other sections cover current challenges relating to plastic waste, explain the sources of waste and their routes into the environment, and provide systematic coverage of plastic waste treatment methods, including mechanical processing, monomerization, blast furnace feedstocks, gasification, thermal recycling, and conversion to fuel. This is an essential guide for anyone involved in plastic waste or recycling, including researchers and advanced students across plastics engineering, polymer science, polymer chemistry, environmental science, and sustainable materials. Presents actionable solutions for reducing plastic waste, with a focus on the concepts of collection, re-use, recycling and replacement Considers major societal and environmental issues, providing the reader with a broader understanding and supporting effective implementation Includes detailed case studies from across the globe, offering unique insights into different solutions and approaches

Flexible Polyurethane Foams

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Author :
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110639831
Total Pages : 277 pages
Book Rating : 4.1/5 (16 download)

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Book Synopsis Flexible Polyurethane Foams by : Chris Defonseka

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.

Polyurethane Chemistry

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Author :
Publisher :
ISBN 13 : 9780841298408
Total Pages : pages
Book Rating : 4.2/5 (984 download)

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Book Synopsis Polyurethane Chemistry by : Ram K. Gupta

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"--

The Chemical Recycling of Polyurethane Waste

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Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (263 download)

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Book Synopsis The Chemical Recycling of Polyurethane Waste by : Barry W. O'Driscoll

Download or read book The Chemical Recycling of Polyurethane Waste written by Barry W. O'Driscoll and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Polymeric Foams

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Author :
Publisher : CRC Press
ISBN 13 : 1135499748
Total Pages : 476 pages
Book Rating : 4.1/5 (354 download)

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Book Synopsis Polymeric Foams by : Shau-Tarng Lee

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

Szycher's Handbook of Polyurethanes, Second Edition

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Author :
Publisher : CRC Press
ISBN 13 : 1439839581
Total Pages : 1147 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Szycher's Handbook of Polyurethanes, Second Edition by : Michael Szycher, Ph.D

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.

Coatings Materials and Surface Coatings

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Author :
Publisher : CRC Press
ISBN 13 : 1420044052
Total Pages : 532 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Coatings Materials and Surface Coatings by : Arthur A. Tracton

Download or read book Coatings Materials and Surface Coatings written by Arthur A. Tracton and published by CRC Press. This book was released on 2006-11-07 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing from the third edition of The Coatings Technology Handbook, this text provides a detailed analysis of the raw materials used in the coatings, adhesives, paints, and inks industries. Coatings Materials and Surface Coatings contains chapters covering the latest polymers, carbon resins, and high-temperature materials used for coatings, adhesiv

Waste-To-Profit (W-t-P)

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Author :
Publisher :
ISBN 13 : 9781536149951
Total Pages : 0 pages
Book Rating : 4.1/5 (499 download)

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Book Synopsis Waste-To-Profit (W-t-P) by : Linda Zikhona Linganiso

Download or read book Waste-To-Profit (W-t-P) written by Linda Zikhona Linganiso and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of a circular economy in the construction sector captures global material flow through product design, inverse logistics, innovation and collaborations. The circulation of the economy takes into consideration global population influence, which affects the economy through a variety of construction product flows in particular. The increase in consumers means increasing product and services which participate in different waste streams. The emerging sustainable development in the construction industry requires the recycling of waste materials to reduce the negative environmental impact of construction activities. Accumulation and management of construction wastes is also becoming a major environmental and economical concern in many developing countries. Huge volumes of waste generated end up piled on landfill sites or illegally dumped, posing serious health and ecological problems. In the construction industry, recycling of waste concrete, masonry, cement, gypsum, to mention but a few, has become an important aspect due to the continued increase of construction wastes and depletion of natural aggregates. Why not establish a business system that is specifically designed to do much more value addition to the construction wastes and develop products which are not only in demand locally but internationally, to encourage exports for maximum financial gain. This book aims to analyze the current business model in the construction sector and the current legislation concerning waste management. It also highlights efforts required in order to refine the recycling methods in favor of a circular economy in the constuction industry. In support of a transition to a low carbon economy, different types of materials which can be produced from the construction wastes are indicated including processes which are used to obtain the final products. The market demand including penetration of the resulting products are given extensively. Policies and regulations to govern these undertakings are highlighted also. The municipalities will learn to redirect the local construction industries on how to avoid dumping at landfill sites as the space has currently become an issue. Researchers globally will learn how to go up through the Technology Readiness Levels (TRL) from basic research through prototype development and finally up to commercialization in projects related to the construction.

Advances in Plastics Recycling: Recycling of polyurethanes

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Author :
Publisher : CRC Press
ISBN 13 : 9781566767378
Total Pages : 250 pages
Book Rating : 4.7/5 (673 download)

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Book Synopsis Advances in Plastics Recycling: Recycling of polyurethanes by : Kurt C. Frisch

Download or read book Advances in Plastics Recycling: Recycling of polyurethanes written by Kurt C. Frisch and published by CRC Press. This book was released on 1999 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recycling of Polyurethanes, the first volume in the Advances in Plastics Recycling series, is focused on the physical and chemical recycling of polyurethanes, with attention given to energy conversion. A compilation of the present ongoing studies on recycling of urethane and, in general, isocyanate-based polymers, the focus is on thermosetting urethane polymers.

Melt Extrusion

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Publisher : Springer Science & Business Media
ISBN 13 : 1461484324
Total Pages : 472 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Melt Extrusion by : Michael A. Repka

Download or read book Melt Extrusion written by Michael A. Repka and published by Springer Science & Business Media. This book was released on 2013-10-11 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides readers with the basic principles and fundamentals of extrusion technology and a detailed description of the practical applications of a variety of extrusion processes, including various pharma grade extruders. In addition, the downstream production of films, pellets and tablets, for example, for oral and other delivery routes, are presented and discussed utilizing melt extrusion. This book is the first of its kind that discusses extensively the well-developed science of extrusion technology as applied to pharmaceutical drug product development and manufacturing. By covering a wide range of relevant topics, the text brings together all technical information necessary to develop and market pharmaceutical dosage forms that meet current quality and regulatory requirements. As extrusion technology continues to be refined further, usage of extruder systems and the array of applications will continue to expand, but the core technologies will remain the same.

PVC waste treatment in the Nordic countries

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Author :
Publisher : Nordic Council of Ministers
ISBN 13 : 9289359692
Total Pages : 123 pages
Book Rating : 4.2/5 (893 download)

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Book Synopsis PVC waste treatment in the Nordic countries by : Anna Fråne

Download or read book PVC waste treatment in the Nordic countries written by Anna Fråne and published by Nordic Council of Ministers. This book was released on 2019-02-18 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the project was to map PVC waste streams in Denmark, Sweden, Norway and Finland. The available estimates are made occasionally, mostly within the frames of different projects and are not based on any formalized official reporting system or other rigorous accounting scheme. Overall, a large part of PVC waste ends up in mixed waste fractions and is eventually treated in waste-to-energy plants. Landfilling of PVC waste is banned in two countries, but some exceptions exist. Norway is the only country that treats some PVC waste as hazardous waste. The current waste treatment situation in the four Nordic countries is driven by several factors, such as diverse origins of PVC products, some specifics of the Nordic market, rather low focus on PVC waste in policy strategies or plans, technical issues regarding incineration of PVC waste, and the lack of domestic recycling.

Polyurethane Elastomers

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3709105145
Total Pages : 276 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Polyurethane Elastomers by : Cristina Prisacariu

Download or read book Polyurethane Elastomers written by Cristina Prisacariu and published by Springer Science & Business Media. This book was released on 2011-07-03 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive account of the physical / mechanical behaviour of polyurethanes (PU ́s) elastomers, films and blends of variable crystallinity. Aspects covered include the elasticity and inelasticity of amorphous to crystalline PUs, in relation to their sensitivity to chemical and physical structure. A study is made of how aspects of the constitutive responses of PUs vary with composition: the polyaddition procedure, the hard segment, soft segment and chain extender (diols and diamines) are varied systematically in a large number of systems of model and novel crosslinked andthermoplastic PUs. Results will be related to: microstructural changes, on the basis of evidence from x-ray scattering (SAXS and WAXS), and also dynamic mechanical analyses (DMA), differential scanning calorimetry (DSC) and IR dichroism. Inelastic effects will be investigated also by including quantitative correlations between the magnitude of the Mullins effect and the fractional energy dissipation by hysteresis under cyclic straining, giving common relations approached by all the materials studied. A major structural feature explored is the relationship between the nature of the hard segment (crystallising or not) and that of the soft segments. Crystallinity has been sometimes observed in the commercial PUs hard phase but this is usually limited to only a few percent for most hard segment structures when solidified from the melt. One particular diisocyanate, 4,4’-dibenzyl diisocyanate (DBDI) that, in the presence of suitable chain extenders ( diols or diamines), gives rise to significant degrees of crystallinity [i-iii] and this is included in the present work. Understanding the reaction pathways involved, in resolving the subtle morphological evolution at the nanometre level, and capturing mathematically the complex, large-deformation nonlinear viscoelastic mechanical behaviour are assumed to bring new important insights in the world basic research in polyurethanes and towards applied industrial research in this area.