Applications of Polyurethanes in Medical Devices provides detailed coverage of polyurethane (PU) chemistry, processing and preparation for performant medical devices. Polyurethanes have found many uses in medical applications, due to their biocompatibility, biostability, physical properties, surface polarity, and the ability to suit the field of application. This book enables the reader to understand polyurethane and how this valuable material can be used in medical devices. Sections cover the chemistry, structure, and properties of polyurethane, with in-depth sections examining raw materials, reaction chemistry, synthesis techniques, reaction kinetics, material microstructure, and structure-property relationships. Subsequent chapters demonstrate how polyurethane can be utilized in medical device applications, examining biological properties, rheology and processing before methodical coverage explains how polyurethane may be used for each category of medical device. Finally, future directions, and safety and environmental aspects, are covered.

An ideal - and affordable - text for engineers and maintenance professionals with an interest in vibration monitoring. This title does not attempt to baffle with the technology, but introduces it at an understandable level, touching on the basic theory and concepts, available equipment and practical issues relevant to the engineer as well as highlighting several case studies with which the reader can relate. Other books in this series focus on corrosion, vibration, thermography, noise, ultrasonics and acoustic emission, level, leakage and flow, oil analysis, load monitoring and a superb Concise Encyclopaedia that includes introductory notes on all of the above techiques as well as others.

This monograph provides researchers, engineers, postgraduates and lecturers working in the field of ferroelectric or piezoelectric and related materials with features of the structure-property relationships in modern piezo-active composites. These are piezoelectric composites which are active dielectric materials, which can be poled ferroelectric ceramics or domain-engineered single crystals poled along specific crystallographic directions. Current knowledge of the effective physical properties of these materials is lacking especially due to gaps of information in physical, chemical, microgeometric and technological factors. For composite and transducer design purposes, the expected properties of these piezo-active materials have been theorized through models by the authors and proven in experiments. Various well-known journals have published this research, among many others: Smart Materials and Structures; Journal of Physics D: Applied Physics; IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control; Acta Materialia.The book summarises and generalises a series of authors' works on the problem of the effective properties and related parameters of modern two- and three-component piezo-active composites wherein the microgeometric factor plays the dominating role. Specific examples of the performance of composites based on domain-engineered single crystals are also discussed. New trends are described in the research of modern piezo-active composites with the aim of filling the gaps in piezoelectric materials science. The primary goal of the book is to show advantages of different methods being applied to manufacture and study the functional composites that are suitable for piezoelectric energy harvesting, hydroacoustic, sensor, actuator, and other transducer applications.

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.