ETFE foil has recently become an important material for the cladding of technologically sophisticated and innovative buildings. This material is very thin and lightweight and, when used in air-filled cushion assemblies, has enormous strength and a range of adaptive environmental attributes. ETFE cushion enclosures became known primarily through Grimshaw Architects’ Eden Project and Herzog + de Meuron’s Allianz Arena, and they are being used on the spectacular swimming stadium for the 2008 Olympic Games in Beijing, the largest ETFE building envelope in the world so far. This book is conceived as an in-depth introduction to the characteristics of ETFE and its applications in construction. Project examples explore in detail the specific characteristics of ETFE building skins in the areas of structural behavior, light transmission, insulation, acoustics, fire engineering and environmental modification.
Presents world thinking on the design and construction of large covered spaces. This book aims to offer insights into many of the innovative construction design projects. It explores the advances within stressed membrane roofing, atria and glass structures, with a focus on international developments. It also addresses the problems of construction.
Fluoropolymers were discovered accidentally by Plunkett in 1938. He was working on freon and accidentally polymerised tetrafluoroethylene. The result was polytetrafluoroethylene (PTFE), more commonly known as Teflon. PTFE is inert to virtually all chemicals and is considered to be the most slippery material in existence - it has the lowest coefficient of friction of any known solid material. These properties have made it one of the most valuable and versatile technologies ever invented, contributing to significant advancements in areas such as aerospace, communications, electronics, industrial.
Since Plunkett's discovery of Teflon (PTFE) in 1938, many new types of fluorine-containing polymers have been developed, especially during last two decades. The worldwide annual production capacity for fluoropolymers is estimated to be 135,000 metric tons. Continuing research and development provides new and interesting products that will help adva
Polymers used in electronics and electrical engineering are essential to the development of high-tech products, with applications in space, aviation, health, automotive, communication, robotics, consumer products, and beyond. Typical features of mainstream polymers such as mechanical performance, optical behavior, and environmental stability frequently need to be enhanced to perform in these demanding applications, creating the need to develop special grades or use completely new chemistry for their synthesis. Similarly, the typical set of properties included in the description of mainstream polymers are not sufficient for polymer selection for these applications, as they require different data, data that is meticulously detailed in the Handbook of Polymers for Electronics. The book provides readers with the most up-to-date information from the existing literature, manufacturing data, and patent filings. Presenting data for all polymers based on a consistent pattern of arrangement, the book provides details organized into the following sections: General; history; synthesis; structure; commercial polymers; physical properties; electrical properties; mechanical properties; chemical resistance; flammability; weather stability; thermal stability; biodegradation; toxicity; environmental impact; processing; blends; analysis. The contents, scope, treatment and novelty of the data makes this book an essential resource for anyone working with polymeric materials used in modern electronic applications. - Synthesizes the most recent literature available on various grades of polymers, plastics, finished products, and patents - Provides data on general information, synthesis, structure, physical properties, electrical properties, mechanical properties, chemical resistance, flammability, weather stability, thermal stability, biodegradation, toxicity, environmental impact, and more - Details information on crystalline structure, cell dimensions, methods of synthesis, optoelectrical properties, relative permittivity, dissipation factor, actuation bandwidth, tear strength, abrasion resistance, and more
Corrosion of Polymers and Elastomers provides a detailed examination of the corrosive effects of thermoplastic polymers, thermoset polymers, and elastomeric materials. The book is perfectly suited for specialists interested in the corrosion resistance and mechanisms of these materials. Following a general introduction to the composition, properties, and applications of polymers, the book focuses on the effects of chemical corrosion caused by changes in temperature, moisture, and other corrodents. Organized by material type, the chapters cover each material's ability to withstand sun, weather, and ozone as well as its chemical resistance and typical applications. The book also includes compatibility tables for each of the materials and compares the corrosion resistance of selected elastomers.
This event brought together experts to discuss the latest developments and provided a useful discussion forum for automotive engineers and manufacturers; fuel system component manufacturers; polymer R&D specialists and material suppliers.
Details in Architecture is the latest edition in IMAGES' ever-popular Details series. Each volume is a study of the emerging trends in architectural detailing, with a strong focus on innovative design, enviro- sustainability and many aspects of cross-cul
From the late-1960’s, perfluorosulfonic acid (PFSAs) ionomers have dominated the PEM fuel cell industry as the membrane material of choice. The “gold standard’ amongst the many variations that exist today has been, and to a great extent still is, DuPont’s Nafion® family of materials. However, there is significant concern in the industry that these materials will not meet the cost, performance, and durability requirementsnecessary to drive commercialization in key market segments – es- cially automotive. Indeed, Honda has already put fuel cell vehicles in the hands of real end users that have home-grown fuel cell stack technology incorporating hydrocarbon-based ionomers. “Polymer Membranes in Fuel Cells” takes an in-depth look at the new chem- tries and membrane technologies that have been developed over the years to address the concerns associated with the materials currently in use. Unlike the PFSAs, which were originally developed for the chlor-alkali industry, the more recent hydrocarbon and composite materials have been developed to meet the specific requirements of PEM Fuel Cells. Having said this, most of the work has been based on derivatives of known polymers, such as poly(ether-ether ketones), to ensure that the critical requirement of low cost is met. More aggressive operational requi- ments have also spurred the development on new materials; for example, the need for operation at higher temperature under low relative humidity has spawned the creation of a plethora of new polymers with potential application in PEM Fuel Cells.
