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.
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1. Introduction to polymers 2. Polyurethane foam chemistry 3. Recycling techniques 4. Economic and environmental impact of plastic wastes, management of plastic wastes, mechanical recycling, feedstock recycling, sorting and separation of mixed plastics, future trends in plastic waste management 5. Degradation vs. Decomposition 6. Introduction to chemical depolymerization 7. Chemical depolymerization of polyurethane foam via glycolysis 8. Chemical depolymerization of polyurethane foam via hydrolysis 9. Chemical depolymerization of polyurethane foam via ammonolysis and aminolysis 10. Chemical depolymerization of polyurethane foam via combined chemolysis methods 11. Life cycle analysis of polyurethane foam wastes 12. Applications of chemically depolymerized polyurethane foam 13. Applications of mechanically grounded polyurethane foam
Director, Centre for Neuroscience and Nanotechnology, Mahatma Gandhi University, India.
Prof. Sabu Thomas is a Professor of Polymer Science and Engineering at the School of Chemical Sciences, as well as the Director of Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, India. He received his Ph.D. in 1987 in Polymer Engineering from the Indian Institute of Technology (IIT), Kharagpur, India. He is a fellow of the Royal Society of Chemistry, London and a member of the American Chemical Society. He has been ranked no.5 in India with regard to the number of publications (most productive scientists). Prof. Thomas's research group is specialized areas of polymers which includes Polymer blends, Fibre filled polymer composites, Particulate-filled polymer composites and their morphological characterization, Ageing and degradation, Pervaporation phenomena, sorption and diffusion, Interpenetrating polymer systems, Recyclability and reuse of waste plastics and rubbers, Elastomer crosslinking, Dual porous nanocomposite scaffolds for tissue engineering etc. Prof. Thomas's research group has extensive exchange programs with different industries, research and academic institutions all over the world and is performing world class collaborative research in various fields. Professors Centre is equipped with various sophisticated instruments and has established the state-of-the-art experimental facilities which cater for the needs of researchers within the country and abroad.
Ajay Vasudeo Rane Doctoral Research Fellow, Durban University of Technology, South Africa.
Ajay Vasudeo Rane is a Doctoral Research Fellow at the Durban University of Technology, South Africa. His research focuses include polymer blends, ageing and degradation of polymeric materials, green chemistry, and polymer recycling.
Krishnan Kanny Professor of Material Science and Engineering, Durban University of Technology, South Africa.
Krishnan Kanny is a Professor of Material Science and Engineering at the Durban University of Technology, South Africa. He is a seasoned engineer and scientist with over twenty years research experience in advanced engineering materials systems, and more than 120 papers in international journals and conference proceedings.
Abitha VK Senior Research Fellow, School of Chemical Sciences, Mahatma Gandhi University, India.
Abitha V.K. is a Senior Research Fellow at the School of Chemical Sciences, Mahatma Gandhi University, India. Her areas of research include rubber, polymer blends, fibre filled polymer composites, particulate filled polymer composites and their morphological and structural characterization. Dr. Abitha has written several book chapters, and has co-edited three books with Elsevier.
Martin George Thomas Research Student, International and Inter University Centre for Nanoscience and Nanotechnology, Kottayam, Kerala, India.
Martin George Thomas is a research student at the International and Interuniversity Centre for Nanoscience and Nanotechnology, Kottayam, Kerala, currently performing research into the areas of epoxy nanocomposites.