Nitrile Rubber Production - Cost Analysis - NBR E11A


Book Description

This report presents a cost analysis of Nitrile Rubber (solid NBR) production from acrylonitrile and butadiene. The process examined is a typical continuous cold emulsion process for producing NBR, containing 33 wt% of acrylonitrile. In this process, an emulsion comprising water, acrylonitrile and butadiene monomers is polymerized into a latex, which is then coagulated to form the Nitrile Butadiene rubber. This report was developed based essentially on the following reference(s): US Patent 5708132, issued to The Goodyear Tire & Rubber Company in 1998; Keywords: Synthetic Rubber, Nitrile Butadiene Rubber, NBR, Buna-N, Perbunan, Acrylonitrile Butadiene Rubber, Nipol, Krynac, Europrene




Butadiene Production from n-Butane - Cost Analysis - Butadiene E11A


Book Description

This report presents a cost analysis of 1,3-Butadiene (BD) production from n-butane using a dehydrogenation process. The process examined is similar to CB&I Lummus Catadiene process. In the process, n-butane undergoes a dehydrogenation reaction generating a C4s stream containing 1,3-Butadiene. High purity 1,3-Butadiene is obtained after conventional separation steps and an extractive distillation, using n-methylpyrrolidone (NMP) as solvent. Unreacted butane and butenes recovered are recycled to the dehydrogenation. This report was developed based essentially on the following reference(s): (1) "Butadiene," Ullmann's Encyclopedia of Industrial Chemistry, 7th edition (2) "Butadiene, General," Encyclopedia of Chemical Processing and Design Keywords: Houdry Catadiene, Sud-Chemie, Catalytic Dehydrogenation, BD, Fixed-Bed Reactor, BASF, NMP extraction




Polychloroprene Production - Cost Analysis - CR E11A


Book Description

This report presents a cost analysis of Chloroprene Rubber (also known as Polychloroprene) production from chloroprene. The process examined is a typical emulsion process. This report was developed based essentially on the following reference(s): Keywords: Neoprene, Chloroprene Rubber, 2-Chlorobuta-1,3-Diene, Synthetic Rubbers




Rubber Nanocomposites


Book Description

Rubber Nanocomposites: Preparation, Properties and Applications focuses on the preparation, characterization and properties of natural and synthetic rubber nanocomposites. The book carefully debates the preparation of unmodified and modified nanofillers, various manufacturing techniques of rubber nanocomposites, structure, morphology and properties of nanocomposites. The text reviews the processing; characterization and properties of 0-, 1D and 2D nanofiller reinforced rubber nanocomposites. It examines the polymer/filler interaction, i.e., the compatibility between matrix and filler using unmodified and modified nanofillers. The book also examines the applications of rubber nanocomposites in various engineering fields, which include tyre engineering. The book also examines the current state of the art, challenges and applications in the field of rubber nanocomposites. The handpicked selection of topics and expert contributions make this survey of rubber nanocomposites an outstanding resource for anyone involved in the field of polymer materials design. A handy "one stop" reference resource for important research accomplishments in the area of rubber nanocomposites. Covers the various aspects of preparation, characterization, morphology, properties and applications of rubber nanocomposites. Summarizes many of the recent technical research accomplishments in the area of nanocomposites, in a comprehensive manner It covers an up to date record on the major findings and observations in the field




Mechanical Properties of Solid Polymers


Book Description

A concise, self-contained introduction to solid polymers, the mechanics of their behavior and molecular and structural interpretations. This updated edition provides extended coverage of recent developments in rubber elasticity, relaxation transitions, non-linear viscoelastic behavior, anisotropic mechanical behavior, yield behavior of polymers, breaking phenomena, and other fields.




Handbook of Biomaterial Properties


Book Description

This book provides tabular and text data relating to normal and diseased tissue materials and materials used in medical devices. Comprehensive and practical for students, researchers, engineers, and practicing physicians who use implants, this book considers the materials aspects of both implantable materials and natural tissues and fluids. Examples of materials and topics covered include titanium, elastomers, degradable biomaterials, composites, scaffold materials for tissue engineering, dental implants, sterilization effects on material properties, metallic alloys, and much more. Each chapter author considers the intrinsic and interactive properties of biomaterials, as well as their appropriate applications and historical contexts. Now in an updated second edition, this book also contains two new chapters on the cornea and on vocal folds, as well as updated insights, data, and citations for several chapters.




Electronic Noses and Sensors for the Detection of Explosives


Book Description

Proceedings of the NATO Advanced Research Workshop, held in Warwick, Coventry, U.K., 30 September-3 October 2003




Sports-Related Concussions in Youth


Book Description

In the past decade, few subjects at the intersection of medicine and sports have generated as much public interest as sports-related concussions - especially among youth. Despite growing awareness of sports-related concussions and campaigns to educate athletes, coaches, physicians, and parents of young athletes about concussion recognition and management, confusion and controversy persist in many areas. Currently, diagnosis is based primarily on the symptoms reported by the individual rather than on objective diagnostic markers, and there is little empirical evidence for the optimal degree and duration of physical rest needed to promote recovery or the best timing and approach for returning to full physical activity. Sports-Related Concussions in Youth: Improving the Science, Changing the Culture reviews the science of sports-related concussions in youth from elementary school through young adulthood, as well as in military personnel and their dependents. This report recommends actions that can be taken by a range of audiences - including research funding agencies, legislatures, state and school superintendents and athletic directors, military organizations, and equipment manufacturers, as well as youth who participate in sports and their parents - to improve what is known about concussions and to reduce their occurrence. Sports-Related Concussions in Youth finds that while some studies provide useful information, much remains unknown about the extent of concussions in youth; how to diagnose, manage, and prevent concussions; and the short- and long-term consequences of concussions as well as repetitive head impacts that do not result in concussion symptoms. The culture of sports negatively influences athletes' self-reporting of concussion symptoms and their adherence to return-to-play guidance. Athletes, their teammates, and, in some cases, coaches and parents may not fully appreciate the health threats posed by concussions. Similarly, military recruits are immersed in a culture that includes devotion to duty and service before self, and the critical nature of concussions may often go unheeded. According to Sports-Related Concussions in Youth, if the youth sports community can adopt the belief that concussions are serious injuries and emphasize care for players with concussions until they are fully recovered, then the culture in which these athletes perform and compete will become much safer. Improving understanding of the extent, causes, effects, and prevention of sports-related concussions is vitally important for the health and well-being of youth athletes. The findings and recommendations in this report set a direction for research to reach this goal.




Advances in Lightweight Materials and Structures


Book Description

This book presents select proceedings of the International Conference on Advanced Lightweight Materials and Structures (ICALMS) 2020, and discusses the triad of processing, structure, and various properties of lightweight materials. It provides a well-balanced insight into materials science and mechanics of both synthetic and natural composites. The book includes topics such as nano composites for lightweight structures, impact and failure of structures, biomechanics and biomedical engineering, nanotechnology and micro-engineering, tool design and manufacture for producing lightweight components, joining techniques for lightweight structures for similar and dissimilar materials, design for manufacturing, reliability and safety, robotics, automation and control, fatigue and fracture mechanics, and friction stir welding in lightweight sandwich structures. The book also discusses latest research in composite materials and their applications in the field of aerospace, construction, wind energy, automotive, electronics and so on. Given the range of topics covered, this book can be a useful resource for beginners, researchers and professionals interested in the wide ranging applications of lightweight structures.