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Author: Publisher: Elsevier ISBN: 0323983138 Category : Science Languages : en Pages : 320
Book Description
Rethinking Polyester Polyurethanes: Algae Based Renewable, Sustainable, Biodegradable and Recyclable Materials explains how and why bio-based materials, specifically algae, will change the polymer industry. The book provides background on algae, polyurethanes (PUs), and their everyday use. It covers the biology and chemistry behind how and why these materials are engineered to be both biodegradable and, through the process of depolymerization, fully recyclable. Chapters cover Re-evaluating the Sources, Redefining the Analytics, Reformulating Polyester Polyurethanes, and The Future. The latter part of the book describes the landscape of bio-based materials, the eco-consumer, and insights into the industry problem of “greenwashing. This book is a valuable resource for industry professionals who use polyurethanes in the supply chain for manufactured products, those in sales and marketing or regulatory roles who wish to better understand the unique advantages of bio-based materials, and researchers studying R&D of biobased polyurethanes or remediation of microplastics pollution on land and in bodies of fresh and saltwater worldwide. Builds on the foundation of sustainable, renewable, biodegradable, recyclable microplastics, with lifecycle assessment, techno-economic analysis, and the green premium Clarifies the true economics—if we were to go back to initial development of the plastics industry, what would we do differently? Covers the basic science—the knowledge required to effectively communicate the use of materials that are on first examination more expensive, but on closer examination less expensive when environmental consequences are factored
Author: Publisher: Elsevier ISBN: 0323983138 Category : Science Languages : en Pages : 320
Book Description
Rethinking Polyester Polyurethanes: Algae Based Renewable, Sustainable, Biodegradable and Recyclable Materials explains how and why bio-based materials, specifically algae, will change the polymer industry. The book provides background on algae, polyurethanes (PUs), and their everyday use. It covers the biology and chemistry behind how and why these materials are engineered to be both biodegradable and, through the process of depolymerization, fully recyclable. Chapters cover Re-evaluating the Sources, Redefining the Analytics, Reformulating Polyester Polyurethanes, and The Future. The latter part of the book describes the landscape of bio-based materials, the eco-consumer, and insights into the industry problem of “greenwashing. This book is a valuable resource for industry professionals who use polyurethanes in the supply chain for manufactured products, those in sales and marketing or regulatory roles who wish to better understand the unique advantages of bio-based materials, and researchers studying R&D of biobased polyurethanes or remediation of microplastics pollution on land and in bodies of fresh and saltwater worldwide. Builds on the foundation of sustainable, renewable, biodegradable, recyclable microplastics, with lifecycle assessment, techno-economic analysis, and the green premium Clarifies the true economics—if we were to go back to initial development of the plastics industry, what would we do differently? Covers the basic science—the knowledge required to effectively communicate the use of materials that are on first examination more expensive, but on closer examination less expensive when environmental consequences are factored
Author: Mark F. Sonnenschein Publisher: John Wiley & Sons ISBN: 1118737830 Category : Technology & Engineering Languages : en Pages : 444
Book Description
A complete overview of a key plastic One of the most versatile polymer materials, polyurethanes have a unique chemical nature that allows for shaping and molding to fit all sorts of consumer and industrial products – seat cushions, carpets, insulation, coatings, and refrigerators to name a few. Despite its popular uses, polyurethane science has only relatively recently achieved appreciation for the richness of its expression as a polymer family. This book provides a thorough presentation of polyurethane science, technology markets and trend analysis based on recent patents. Although it does not provide ultimate detail (such as explicit information typically in patents), the book has a flow and continuity that allows readers to find all the background necessary to understand any other more detailed polyurethane information found elsewhere. Anyone involved in the polymer and plastics industry will find this book a key resource with features that include: An in-depth summary of the current state of polyurethane research and knowledge Discussion of the applications, manufacture, and markets for polyurethanes Analytical methods, reaction mechanisms, morphology, theoretical techniques, and the selection of chain extenders Polyurethane flexible and rigid foams, elastomers, coatings, adhesives, and medical applications In-depth coverage of governmental regulations, non-isocyanate/non-phosgene routes to polyurethane structure, and industrial routes to environmental, health, and safety risk mitigation
Author: M. J. Forrest Publisher: iSmithers Rapra Publishing ISBN: 9781859571606 Category : Technology & Engineering Languages : en Pages : 150
Book Description
This review aims to introduce the chemistry of polyurethanes, and to examine the different techniques which may be used to analyse these polymers. The characterisation of polyurethane starting materials, cure reaction, polymer structures and molecular c099, and additives, and their relationship to the final properties of the polymer are all outlined. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.
Author: Shu Wen Ng Publisher: RTI Press ISBN: Category : Medical Languages : en Pages : 12
Book Description
Preventing non-communicable diseases (NCDs) in an effective and sustainable way will require forward-looking policy solutions that can address multiple objectives. This was true pre–COVID-19 and is even more true now. There are already examples from across the globe and within the United States that show how these may be possible. Although there are still many unknowns around how the design, targeting, level, sequencing, integration, and implementation of fiscal policies together can maximize their NCD prevention potential, there is already clear evidence that health taxes and particularly sugar-sweetened beverage (SSB) taxes are cost-effective. Nonetheless, policies alone may not succeed. Political will to prioritize well-being, protections against industry interference, and public buy-in are necessary. If those elements align, pricing policies that consider the context in question can be designed and implemented to achieve several goals around reducing consumption of unhealthy SSBs and foods, narrowing existing nutritional and health disparities, encouraging economic and social development. The US and its local and state jurisdictions should consider these pricing policy issues and their contexts carefully, in collaboration with community partners and researchers, to design multi-duty actions and to be prepared for future windows of opportunities to open for policy passage and implementation.
Author: Food and Agriculture Organization of the United Nations Publisher: Food & Agriculture Org. ISBN: 9251098824 Category : Nature Languages : en Pages : 147
Book Description
An overview of the occurrence and effects of microplastics on aquatic organisms, with recommendations regarding seafood safety and security, environmental risk assessment approaches and targeted monitoring of microplastics in the environment.
Author: John Andraos Publisher: CRC Press ISBN: 100054236X Category : Science Languages : en Pages : 1406
Book Description
Interest in green chemistry and clean processes has grown so much in recent years that topics such as fluorous biphasic catalysis, metal organic frameworks, and process intensification, which were barely mentioned in the First Edition, have become major areas of research. In addition, government funding has ramped up the development of fuel cells and biofuels. This reflects the evolving focus from pollution remediation to pollution prevention. Copiously illustrated with more than 800 figures, the Third Edition provides an update from the frontiers of the field. It features supplementary exercises at the end of each chapter relevant to the chemical examples introduced in each chapter. Particular attention is paid to a new concluding chapter on the use of green metrics as an objective tool to demonstrate proof of synthesis plan efficiency and to identify where further improvements can be made through fully worked examples relevant to the chemical industry. NEW AND EXPANDED RESEARCH TOPICS Metal-organic frameworks Metrics Solid acids for alkylation of isobutene by butanes Carbon molecular sieves Mixed micro- and mesoporous solids Organocatalysis Process intensification and gas phase enzymatic reactions Hydrogen storage for fuel cells Reactive distillation Catalysts in action on an atomic scale UPDATED AND EXPANDED CURRENT EVENTS TOPICS Industry resistance to inherently safer chemistry Nuclear power Removal of mercury from vaccines Removal of mercury and lead from primary explosives Biofuels Uses for surplus glycerol New hard materials to reduce wear Electronic waste Smart growth The book covers traditional green chemistry topics, including catalysis, benign solvents, and alternative feedstocks. It also discusses relevant but less frequently covered topics with chapters such as "Chemistry of Long Wear" and "Population and the Environment." This coverage highlights the importance of chemistry to everyday life and demonstrates the benefits the expanded exploitation of green chemistry can have for society.
Author: Maria Rosa Aguilar Publisher: Elsevier ISBN: 0857097024 Category : Technology & Engineering Languages : en Pages : 584
Book Description
Smart polymers are polymers that respond to different stimuli or changes in the environment. Smart Polymers and their Applications reviews the types, synthesis, properties, and applications of smart polymers. Chapters in part one focus on types of polymers, including temperature-, pH-, photo-, and enzyme-responsive polymers. Shape memory polymers, smart polymer hydrogels, and self-healing polymer systems are also explored. Part two highlights applications of smart polymers, including smart instructive polymer substrates for tissue engineering; smart polymer nanocarriers for drug delivery; the use of smart polymers in medical devices for minimally invasive surgery, diagnosis, and other applications; and smart polymers for bioseparation and other biotechnology applications. Further chapters discuss the use of smart polymers for textile and packaging applications, and for optical data storage. Smart Polymers and their Applications is a technical resource for chemists, chemical engineers, mechanical engineers, and other professionals in the polymer industry; manufacturers in such sectors as medical, automotive, and aerospace engineering; and academic researchers in polymer science. Reviews the different types of smart polymer, discussing their properties, structure, design, and characterization Reviews applications of smart polymers in such areas as biomedical engineering, textiles, and food packaging
Author: Serban C. Moldoveanu Publisher: Elsevier ISBN: 9780080932156 Category : Science Languages : en Pages : 744
Book Description
Pyrolysis of Organic Molecules with Applications to Health and Environmental Issues, the 28th volume in the Techniques and Instrumentation in Analytical Chemistry series, gives a systematic and comprehensive description of pyrolysis of non-polymeric organic molecules. Pyrolysis is involved in many practical applications as well as in many common human activities, but harmful compounds can be generated in the process. The study of pyrolysis and of the formation of undesirable compounds as a result of pyrolytic processes is of considerable interest to chemists, chemical engineers, and toxicologists. Pyrolysis results for compounds not previously studied or reported Updated information from a large body of results published on pyrolysis of individual compounds or classes of compounds Information on mechanisms and kinetics of numerous pyrolytic processes
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Author: Mark F. Sonnenschein
Author: M. J. Forrest
Author: E. N. Doyle
Author: Bernard Albert Dombrow
Author: Shu Wen Ng
Author: Food and Agriculture Organization of the United Nations
Author: John Andraos
Author: Maria Rosa Aguilar
Author: Serban C. Moldoveanu