Download or read book The Effect of Processing Parameters on the Microwave Absorption by Polyaniline written by and published by . This book was released on 2005 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines the potential of polymer composites containing the conducting polymer polyaniline as radar absorbing materials in the X-band (microwave) frequency range. It describes the preparation of conductive thermoplastic polymethyl methacrylate (PMMA) composites containing polyaniline conductive filler under conditions that were varied in order to determine their effect on the electrical & microwave properties. The effects of sample mixing, melting temperature, heating time, amount of plasticizer, and amount of conducting polymer on the conductivity, permittivity, and microwave absorption are reported.
Download or read book The Effect of Processing Parameters on the Microwave Absorption by Polyaniline PMMA Composites written by and published by . This book was released on 2005 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conductive thermoplastic PMMA composites containing Polyaniline conductive filler were prepared. Conditions were varied in order to examine their effect on the electrical and microwave properties. Ball-milling for 2 h prior to heating at 175 deg C at 8- psi for 3 min in the presence of 10 wt % hydroquinone plasticizer was found to give composites with the highest measured microwave absorption in the X-band (8-12 GHz). Loss tangents as high as 44 were attained under these conditions.
Download or read book Papers Presented at the Meeting written by American Chemical Society. Division of Polymer Chemistry and published by . This book was released on 1997 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conducting Polymers Fundamentals and Applications written by Prasanna Chandrasekhar and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the practical fundamentals and applications of conducting polymers. Written from a pedagogical point of view and at a very basic level, it provides a thorough grounding in CPs ideal for further work, as a reference, or as a supplementary course text.
Download or read book Polyaniline Blends Composites and Nanocomposites written by P.M. Visakh and published by Elsevier. This book was released on 2017-10-31 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyaniline Blends, Composites, and Nanocomposites summarizes recent advances in polyaniline-based blends, composites and nanocomposites. Polyaniline (PANI) is a conducting polymer with a range of potential applications, particularly in electronics and packaging. The book covers the preparation, characterization and application of PANI-based composites, including the structure-property relationship and modification of PANI. It offers an in-depth update on the major findings and observations in the field of polyaniline-based blends, composites and nanocomposites, with contributions from leading researchers in industry, academia, government and private research institutions worldwide. The book is an application-oriented, practical guide to the development and application of this polymeric material. The book includes discussion of reinforcement of polyaniline via addition of carbon-based materials, blends with thermoplastics, thermosets, natural and synthetic rubber, and polyaniline based composites and nanocomposites, with an emphasis on enabling polymer scientists and engineers to more effectively utilize this material in new applications. - Includes an in-depth update on the state of research into this exciting material, with detailed and practical information for developing emerging applications of polyaniline - Enables polymer scientists and engineers to overcome challenges and take advantage of opportunities relating to polyaniline, e.g., solubility of the polymer, improving conductivity and more - Includes detailed coverage of the preparation, characterization and application of PANI-based composites in detail, along with the structure-property relationship and modification of PANI
Download or read book Microwave Absorbing Materials written by Yuping Duan and published by CRC Press. This book was released on 2016-10-14 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the phenomenal development of electromagnetic wave communication devices and stealth technology, electromagnetic wave absorbing materials have been attracting attention as antielectromagnetic interference slabs, stealth materials, self-concealing technology, and microwave darkrooms. This book starts with the fundamental theory of electromagnetic wave absorption in loss medium space, followed by a discussion of different microwave absorbents, such as manganese dioxide, iron-based composite powder, conductive polyaniline, barium titanate powder, and manganese nitride. Then, structural absorbing materials are explored, including multilayer materials, new discrete absorbers, microwave absorption coatings, cement-based materials, and structural pyramid materials. Many of the graphics demonstrate not only the principles of physics and experimental results but also the methodology of computing. The book will be useful for graduate students of materials science and engineering, physics, chemistry, and electrical and electronic engineering; researchers in the fields of electromagnetic functional materials and nanoscience; and engineers in the fields of electromagnetic compatibility and stealth design.
Download or read book Materials for Potential EMI Shielding Applications written by Kuruvilla Joseph and published by Elsevier. This book was released on 2019-11-01 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials for Potential EMI Shielding Applications: Processing, Properties and Current Trends extensively and comprehensively reviews materials for EMI shielding applications, ranging from the principles to possible applications and various types of shielding materials. The book provides a thorough introduction to electromagnetic interference, its effect on both the environment and other electronic items, various materials that are used for electromagnetic interference shielding applications, and its properties. It explains the mechanism behind EMI shielding, the methods by which EMI SE of a given material is estimated, and the different fabrication methods currently employed for fabricating EMI shielding materials. Final sections focus on the theoretical background of EMI shielding and shielding mechanisms. This theoretical background is extended to the physics of EMI shielding, wherein the physics behind mechanism of shielding is explained. - Focuses on the different types of available EMI shielding, their applications, processing, characterization, and the mechanism behind their shielding - Discusses how to incorporate EMI shielding with low cost, low density and high strength - Provides an understanding and clarifies both elementary and practical problems relating to EMI shielding materials
Download or read book Metamaterial Electromagnetic Wave Absorbers written by Willie J. Padilla and published by Morgan & Claypool Publishers. This book was released on 2022-01-24 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic metamaterials are a family of shaped periodic materials which achieve extraordinary scattering properties that are difficult or impossible to achieve with naturally occurring materials. This book focuses on one such feature of electromagnetic metamaterials—the theory, properties, and applications of the absorption of electromagnetic radiation. We have written this book for undergraduate and graduate students, researchers, and practitioners, covering the background and tools necessary to engage in the research and practice of metamaterial electromagnetic wave absorbers in various fundamental and applied settings. Given the growing impact of climate change, the call for innovations that can circumvent the use of conventional energy sources will be increasingly important. As we highlight in Chapter 6, the absorption of radiation with electromagnetic metamaterials has been used for energy harvesting and energy generation, and will help to reduce reliance on fossil fuels. Other applications ranging from biochemical sensing to imaging are also covered. We hope this book equips interested readers with the tools necessary to successfully engage in applied metamaterials research for clean, sustainable energy. This book consists of six chapters. Chapter 1 provides an introduction and a brief history of electromagnetic wave absorbers; Chapter 2 focuses on several theories of perfect absorbers; Chapter 3 discusses the scattering properties achievable with metamaterial absorbers; Chapter 4 provides significant detail on the fabricational processes; Chapter 5 discusses examples of dynamical absorbers; and Chapter 6 highlights applications of metamaterial absorbers.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microwave Materials and Applications written by Mailadil T. Sebastian and published by John Wiley & Sons. This book was released on 2017-03-02 with total page 997 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die jüngsten Fortschritte im Bereich der drahtlosen Telekommunikation und dem Internet der Dinge sorgen bei drahtlosen Systemen, beim Satellitenfernsehen und bei intelligenten Transportsystemen der 5. Generation für eine höhere Nachfrage nach dielektrischen Materialien und modernen Fertigungstechniken. Diese Materialien bieten ausgezeichnete elektrische, dielektrische und thermische Eigenschaften und verfügen über enormes Potenzial, vor allem bei der drahtlosen Kommunikation, bei flexibler Elektronik und gedruckter Elektronik. Microwave Materials and Applications erläutert die herkömmlichen Methoden zur Messung der dielektrischen Eigenschaften im Mikrowellenbereich, die verschiedenen Ansätze zur Lösung von Problemen der Materialchemie und von Kristallstrukturen, in den Bereichen Doping, Substitution und Aufbau von Verbundwerkstoffen. Besonderer Schwerpunkt liegt auf Verarbeitungstechniken, Einflüssen der Morphologie und der Anwendung von Materialien in der Mikrowellentechnik. Gleichzeitig werden viele der jüngsten Forschungserkenntnisse bei Mikrowellen-Dielektrika und -Anwendungen zusammengefasst. Die verschiedenen Kapitel untersuchen: Oxidkeramiken für dielektrische Resonatoren und Substrate, HTCC-, LTCC- und ULTCC-Bänder für Substrate, Polymer-Keramik-Verbundstoffe für Leiterplatten, Elastomer-Keramik-Verbundstoffe für flexible Elektronik, dielektrische Tinten, Materialien für die EMV-Abschirmung, Mikrowellen-Ferrite. Ein umfassender Anhang präsentiert die grundlegenden Eigenschaften von mehr als 4000 verlustarmen dielektrischen Keramiken, deren Zusammensetzung, kristalline Struktur und dielektrischen Eigenschaften für Mikrowellenanwendungen. Microwave Materials and Applications wirft einen Blick auf sämtliche Aspekte von Mikrowellenmaterialien und -anwendungen, ein nützliches Handbuch für Wissenschaftler, Unternehmen, Ingenieure und Studenten, die sich mit heutigen und neuen Anwendungen in den Bereichen drahtlose Kommunikation und Unterhaltungselektronik beschäftigen.
Download or read book Ceramic Abstracts written by and published by . This book was released on 2000 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanofibers and Nanotechnology in Textiles written by P. Brown and published by Elsevier. This book was released on 2007-10-17 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology is revolutionising the world of materials. This important book reviews its impact in developing a new generation of textile fibers with enhanced functionality and a wide range of applications. The first part of the book reviews nanofiber production, discussing how different fiber types can be produced using electrospinning techniques. Part two analyses the production and properties of carbon nanotubes and polymer nanocomposites and their applications in such areas as aerospace engineering. The third part of the book considers ways of using nanotechnology to improve polymer properties such as thermal stability and dyeability. The final part of the book reviews the use of nanotechnology to modify textile surfaces, including the use of coatings and films, in order to improve hydrophobic, filtration and other properties.Nanofibers and nanotechnology in textiles is a valuable reference in assessing and using a new generation of textile fibers in applications as diverse as tissue and aerospace engineering. - Nanotechnology is revolutionising the world of materials - Learn about a new generation of textile fibers that have a wide range of applications - Examines how to improve polymer properties
Download or read book MXenes and their Composites written by Kishor Kumar Sadasivuni and published by Elsevier. This book was released on 2021-10-07 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: MXenes and their Composites: Synthesis, Properties and Potential Applications presents a state of the art overview of the recent developments on the synthesis, functionalization, properties and emerging applications of two-dimensional (2D) MXenes and their composites.The book systematically describes the state-of-the-art knowledge and fundamentals of MXene synthesis, structure, surface chemistry and functionalization. The book also discusses the unique electronic, optical, mechanical and topological properties of MXenes. Besides, this book covers the various emerging applications of MXenes and their composites across different fields such as energy storage and conversion, gas sensing and biosensing, rechargeable lithium and sodium-ion batteries, lithium-sulphur and multivalent batteries, electromagnetic interference shielding, hybrid capacitors and supercapacitors, hydrogen storage, catalysis and photoelectrocatalysis, gas separation and water desalination, environmental remediation and medical and biomedical applications. All these applications have been efficiently discussed in the specific chapters and in each case, the processing of MXene composites has also been discussed.This book will be an excellent reference for scientists and engineers across various disciplines and industries working in the field of highly promising 2D MXenes and their composites. The book will also act as a guide for academic researchers, material scientists, and advanced students in investigating the new applications of 2D MXenes based materials. - Covers fundamentals of technologically important MAX phases, MXene derivatives, MXene synthesis methods, intercalation and delamination strategies, surface functionalization, fundamental characteristics and properties - Demonstrates major application areas of MXenes, including catalytic, energy storage and energy generation, flexible electronics, EMI shielding, sensors and biosensors, medical and biomedical, gas separation and water desalination - Presents a detailed discussion on the processing and performance of various MXenes towards different applications
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radar Absorbing Materials written by K.J. Vinoy and published by Springer. This book was released on 2011-09-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to its extensive applications in stealth technology, much of the research effort in radar absorbing materials (RAM) has remained classified. As is the wont with classified topics, it has resulted in much awe and unfounded speculation. The aim of this book is to demystify this topic. The book in hand is concise but complete in itself. The attention of the readers is first drawn towards the historical evolution of RAM to emphasize that the elementary principles of electromagnetics lead to the fundamental concepts of RAM. These also form the basis for further mathematical analysis and design of RAM. The performance plots for the various RAM designs, to the extent possible, are taken with respect to power reflection; this should facilitate comparison of their relative performances. In order to further induce the reader to take the first step towards RAM design, we have included the relevant computer codes in a companion diskette. This would enable the reader to try out elementary designs on his own. * .EXE files should facilitate ready execution of codes on most DOS based computing platforms. The corresponding source codes with comments are also included as * .FOR files. The reader may wish to modify some of these codes for examining RAM design algorithms further. We welcome comments from the reader on these codes.
Download or read book Better Ceramics Through Chemistry V Volume 271 written by Mark J. Hampden-Smith and published by . This book was released on 1992-09-23 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt: The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners. This book was first published in 1992.
Download or read book Principles of Electronic Ceramics written by Larry L. Hench and published by Wiley-Interscience. This book was released on 1990-01-16 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: A modern introduction to the physical principles of electronic ceramic materials. Describes theory in structural terms via the language of quantum mechanics and statistical mechanics, bridging the gap between purely theoretical solid-state texts and strictly applied materials science texts. Most of the equations employed are derived from first principles. Each chapter describes the relevant properties of the materials covered, presents applications of the theory, and includes a graded set of problems (some to be done on a computer). Adopts the convention of the American Ceramic Society. Contains tables and figures.
