دانلود کتاب بازیافت پلیمر و مدیریت پسماند

The scientific community worldwide has reached its most critical point because environmental emergencies from plastic and rubber waste continue to worsen. The time has arrived for polymer waste management to become an absolute necessity for environmental protection. My experience as a polymer engineer spanning multiple decades has shown me that the world needs complete and advanced solutions to handle polymer waste through recycling and reclamation methods. The book “Polymer Recycling and Waste Management” represents more than 20 years of my research and development work in sustainable polymer processing. The book benefits from more than 50 peer-reviewed papers, multiple industrial partnerships, and patentable discoveries which I achieved through my academic work in polymer recycling. The book functions as a technical manual which provides researchers, engineers, and decision-makers with a strategic framework to enhance circularity within the circular economy. The book is divided into 10 chapters and correspondent sections which follow the natural sequence of polymer recycling development from basic to advanced stages. Chapter 1 establishes the worldwide polymer waste crisis and its environmental effects and explains why recycling these materials is essential. The text examines waste prevention methods alongside sophisticated separation methods to demonstrate how material separation functions as the essential first step for successful downstream processing. Chapters 2–7 dedicate their entire content to rubber recycling because this field is facing significant technical obstacles because of vulcanized rubber’s crosslinked structure. Chapter 2 explains rubber structures and chemistry before moving to devulcanization methods in Chapter 6 which include sulfur-based systems, peroxide crosslinking, and microwave- and chemical-assisted decrosslinking techniques. The chapter examines different types of rubber materials including NR, SBR, BR, and EPDM. Chapter 3 deals with morphological characteristics, filler interactions, and blend behavior as crucial factors in polymer waste management, along with useful case studies. The chapter contains multiple comparative tables and SEM/TEM morphological studies and industrial examples from real-world operations. In Chapter 4, the sources and classification of waste rubbers are discussed. Chapter 5 is dedicated to available strategies in rubbers recycling which may be extended to plastics recycling as well. Chapter 6 discusses waste rubber devulcanization, fundamentals and mechanisms. Chapter 7 reviews several case studies based on published papers by the author’s research team in JCR journals. Chapter 8 focuses on plastic separation techniques which serve as the fundamental basis for plastic recycling operations. The text examines traditional separation methods and new techniques which include flotation, dissolution, and triboelectric separation. The chapter demonstrates through experimental data and process diagrams that successful separation methods are essential for enhancing plastic recyclate quality. Chapter 9 presents industrial examples of high-performance engineering plastics and blends such as PC, POM, ABS, and other common plastics while providing detailed information about flotation optimization as a novel plastics separation technique. In Chapter 10, the economy, policy, and industrial perspective of polymer recycling have been examined. The chapter terminates by introducing microplastics global challenges, the role of artificial intelligence (AI) in polymer recycling and waste management, and future research directions in circular economy.