Plastik og polymerer

Lignin, found in the cell walls of trees and plants, is the second-most naturally abundant biopolymer. It is composed of alkyl-aromatic polymer units. This book describes the composition and structure of lignin, strategies for its chemical modification, and studies of biopolymer lignin. It also discusses the synthesis and characterization of lignin, methods for degradation, applications in various materials, and prospects for further development. Other topics covered include the role of lignin in thermosetting and thermoplastic materials and its technical and economic potential for generating green biofuel as an energy source for industrial plants and in the manufacture of fine chemicals.

Materials Processing: A Unified Approach to Processing of Metals, Ceramics and Polymers: Second Edition is the first textbook to bring the fundamental concepts of materials processing together in a unified approach that highlights the overlap in scientific and engineering principles. The book teaches students key principles involved in the processing of engineering materials, specifically metals, ceramics, and polymers, from starting or raw materials through to final functional forms. The book's self-contained approach is based on the state of matter most central to the shaping of the material: melt, solid, powder, dispersion and solution, and vapor. This fully updated edition includes expanded coverage of additive manufacturing and more comprehensive problem sets.

Polymer Nanocomposite Films and Coatings: Processes, Fundamental Properties and Applications presents a comprehensive review on the fundamental chemistry, physics, biology, and engineering aspects of polymer nanocomposite films and coatings. The content of the book covers design configuration, synthesis and processing methods, structure, fundamental properties, and a wide range of applications in diverse research fields. Various unresolved issues and new technical challenges regarding regulatory affairs, safety considerations and environmental and health impact are also discussed in detail. This book will be a valuable reference resource for scientists, engineers, postgraduate students, and those working in the field of polymer composites and nanocomposites, helping them to find solutions to both fundamental and applied problems associated with this important research field.

Flame Retardant Nanocomposites: Emergent Nanoparticles and their Applications covers the broad area of flame retardant polymer nanocomposites, their preparation, fire retardant mechanisms, and the various factors that affect them. The influence of various nanoparticles on their flammability is discussed in detail, as well as their structure, free radical trapping ability, char formation, and eventual barrier properties. This book will be a valuable reference resource for students, researchers, and engineers covering this important field of research. Chapters discuss the effect of different nanoparticles, their dispersion, and the effect of different polymer structures on fire retardant properties, along with possible applications.

This applications-oriented book describes the construction of an injection mold from the ground up. Included are explanations of the individual types of molds, components, and technical terms; design procedures; techniques, tips, and tricks in the construction of an injection mold; and pros and cons of various solutions.Based on a plastic part ("bowl with lid") specially developed for this book, easily understandable text and many illustrative pictures and drawings provide the necessary knowledge for practical implementation. Step by step, the plastic part is modified and enhanced. The technologies and designs that are additionally needed for an injection mold are described by engineering drawings. Maintenance and repair, and essential manufacturing techniques are also discussed.With full-color illustrations, this third edition builds on the success of the previous ones, with significantly expanded coverage of molding simulation, including many new figures, and updates and small corrections throughout the book.

This book offers an up-to-date, platform-independent introduction to injection molding simulation, which plays a very important role in the design of molds and molded parts as well as process development and optimization. The content is structured and conveyed within an engineering framework. Complicated mathematical derivations are avoided as far as possible.The necessary environment of the injection molding simulation is illuminated alongside, so that the build-up of a suitable simulation model and the interpretation of the results are made possible, and knowledge of the model-specific limits is imparted. Guidance is also provided regarding the interpretation of results so that they can be better evaluated quantitatively.The book is designed as a textbook and thus is suitable to accompany courses covering injection molding simulation. The content is largely independent of any particular software package; however, introductory practice examples for Autodesk Moldflow Insight, CADMOULD and Moldex3D are included as step-by-step instructions.

Cyclodextrins (CDs) have attracted great interest from the research community as well as industries in an array of sectors because of their unique structural features. This book provides a comprehensive overview of CDs, beginning with their historical background. Chapters address such topics as the structure and physiochemical properties of CDs, advancements in the field, and potential applications of these materials in fields such as drug delivery and sensing. This book reveals new frontiers in the CD world and is a useful resource for organic, analytical, and supramolecular chemists as well as scientists engaged in biological and material sciences.

Bioresorbable Polymers and their Composites: Characterization and Fundamental Processing for Pharmaceutical and Medical Device Development provides a holistic view of these unique materials and their usage in a range of biomedical applications. The book is evenly divided between fundamentals, processing methods and modeling approaches, and includes detailed coverage of a variety of applications, such as drug delivery, medical devices and wound healing. Key aspects including biocompatibility, biodegradability and toxicology are also thoroughly covered, enabling the reader to be fully informed when fabricating and utilizing their selected bioresorbable polymer. This book is an interdisciplinary and important reference for researchers in the fields of materials science, biomedical engineering, pharmaceutical science and regenerative medicine, as well as R&D groups in the development of medical devices.

The Handbook of Natural Polymers Volume Three : Versatile Applications explores advanced and emerging applications of polymers from natural sources. The book introduces the state-of-the-art, along with opportunities in natural polymers with advanced applications before presenting coverage of natural polymers applied to specific cutting-edge applications. Areas covered include biosensing, drug carriers, cosmetics, tissue engineering, textiles, adhesives and coatings, food, super adsorbents, automotive and construction, 3D printing, paper, nanoelectronics, energy storage, military, smart devices, water purification, dentistry, agriculture, and packaging. In each case, a methodical approach enables readers to understand natural polymer sources, preparation, properties, appropriate applications, emerging materials and new avenues. The final two chapters consider end-of-life themes, including environmental remediation of natural polymers and their transformation to biofuels. As part of a Three-volume handbook offering comprehensive coverage of natural polymers, this book will be of interest to all those looking to gain a broad knowledge of natural polymers, including academic researchers, scientists, advanced students, engineers and R&D professionals from a range of disciplines and industries.

Vegetable Oil Based Polymers and Their Surface Applications presents detailed coverage of principles, preparation methods and novel surface uses of vegetable oil based polymers. This comprehensive, state-of-the-art book follows the journey of vegetable oils from seeds to surfaces in a range of advanced applications. Opening chapters discuss theory, principles and characterization techniques while other sections present concepts on the preparation of different polymer types based on vegetable oil. The final section of the book provides extensive coverage of applications, enabling the preparation of vegetable oil based polymers for a range of products and industries. This is a valuable resource for researchers, scientists, and advanced students in polymer chemistry, surfaces and coatings, natural polymers, materials chemistry, chemical engineering and plastics engineering. In an industrial setting, this book supports R&D professionals, scientists, and engineers interested in developing innovative biobased materials for a range of applications, including automotive and aerospace, packaging, cosmetics, pharmaceuticals, biomedicine and consumer goods.

Textile-based compression therapy is used in a range of applications, such as for athlete and sport recovery, enhanced proprioception, compression spacesuits, and in the management of chronic diseases. This book provides an overview of compression devices and products, testing methods to measure the properties of materials used in compression devices, and design considerations based on dynamic body measurements. It also includes a model for predicting pressure and details the challenges in applying compression for various applications.Chapters in this book:Discuss the science behind compression therapyDelve into the materials used in compression devices and products and assesses their performance based on their properties and structureCover theoretical modeling to predict the pressure exerted by compression devices on the human bodyConsider compression textile design based on dynamic body measurementsThis book is aimed at professionals and researchers in textile engineering, materials engineering, biotechnology, and the development of textile-based compression devices and products, and at such medical practitioners as phlebologists.

Compression Textiles for Medical, Sports, and Allied Applications provides an overview of compression devices and products. It includes testing methods to measure properties of materials, design considerations based on dynamic body measurements and a model for predicting pressure and challenges in application.

The aim of this book is to provide an overview of the situation regarding the biodegradable polymer along the value chain, identify and analyse existing practices for biodegradable plastics, assess the relevant legal, regulatory, economic and practical reasons for the importance of proper use and proper recycling of biodegradable plastics.

Porous Coordination Polymers: From Fundamentals to Advanced Applications offers a comprehensive coverage the latest advances in porous coordination polymers for cutting-edge applications. Porous Coordination Polymers are gaining increasing interest due to their attractive properties, such as structural flexibility, large surface area, tailorable pore size, and functional tunability, in turn enabling a wide range of possible applications which this book aims to highlight and to elucidate. The book begins by introducing porous coordination polymers, highlighting their structure, chemistry, basic properties, and design approaches. This is followed by a chapter focusing on synthetic methods and mechanical properties. Subsequent chapters provide in-depth coverage of specific target applications, explaining the preparation of porous coordination polymers for areas including catalysis and photocatalysis, environmental remediation, gas storage and separation, energy storage and conversion, new generation magnets, nanocarriers in therapeutics, and biomedical imaging. Finally, current challenges and future developments are considered in detail.

Elastomeric Nanocellulose Composites provides an in-depth study of recent developments in this fast-evolving research field. This book covers diverse aspects of materials engineering, surface treatments, and fabrication of green nanocomposites. It consolidates recent studies and qualitative findings on the incorporation of a myriad of nanocellulose variants into various types of elastomer matrices with the main goal of enhancing its mechanical integrity and potentially phasing out conventional elastomer fillers. The current market is likewise discussed in detail. This book will provide an in-depth study of current developments of nanocellulose incorporated elastomer composites and their applications.The book will be an essential reference resource for material scientists, academic and industrial researchers, and technologists covering all aspects in the field. Carbon black and silica are currently used as fillers in elastomer-based composites, but the use of these reinforcing agents is not sustainable or eco-friendly. Therefore there is a need to look for more sustainable filler materials for elastomers.

Polymeric Adsorbents: Characterization, Properties, Applications, and Modelling offers comprehensive information on the various types of polymeric adsorbents and uses, enabling the reader to understand, identify and prepare adsorbents with the required structure and properties for a range of key industrial applications. The book presents the various types of polymeric adsorbents and their characteristics, focuses on physicochemical properties, synthesis methods, functionalization, and composites and hybrid materials, and highlights key application areas, including gas adsorption, heavy metal removal, hazardous dye removal, and adsorption of antibiotics. Finally, the book provides detailed guidance on modeling of polymeric adsorbent behavior and molecular dynamic (MD) simulation. This is a valuable resource to researchers and advanced students across polymer science, chemistry, materials science, engineering, environmental science, and engineers, scientists, and R&D professionals with an interest in polymeric adsorbents for industrial applications.

Approx.720 pages

Textile reinforcement forms (preforms) play an important role in determining the properties of the final composite and product. The preform formation process provides precise control of the fiber architecture and orientation using a suitable textile manufacturing technique. While the techniques employed for preparing glass and carbon preforms are well-known, there is still a gap in understanding on how to prepare natural preforms for composite reinforcements. Multiscale Textile Preforms and Structures for Natural Fiber Composites will bridge this gap by presenting unified knowledge on the relevant preform preparation techniques and resulting fiber architectures. Emphasis is on the structural parameters of each preform and their effect on the final composite properties. This book assembles information and knowledge on natural fiber reinforcement forms, including conventional forms, such as spun yarn, woven, knitted, nonwoven, braided, and comingled. These are illustrated and classified into one-, two-, and three-dimensional reinforcements. This book also includes information on nonconventional preform formation techniques such as unidirectional tapes, pre-impregnated preforms, spread tows, and tailored fiber placement.

"Energy in Plastics Technology" provides, unlike any other book, the necessary fundamentals for dealing with thermotechnical issues in the processing of plastics, leading to efficient, robust, reliable, economical, and environmentally friendly processes for high-quality products. The following four areas are addressed: - Methodical application of the essential fundamentals to practical problems. The focus is on the formulation of energy balances.- Special emphasis is placed on the understanding of the first and second laws of thermodynamics, with their manifold implications.- Access to key advanced technical literature, which can be highly theoretical, and forms the basis for advanced simulation methods, is provided.- Analytical approaches for modeling processes (as opposed to numerical simulation methods) are covered, so that the influence of the essential process parameters can be better recognized, and correct results in terms of order of magnitude are obtained with reasonable effort. These simplified considerations provide a valuable support for the preparation of experiments and numerical simulations and their critical evaluation. The fundamentals provided are applied - in exemplary calculation examples - to problems relevant to practice in the most important processing and forming methods. The book is aimed at engineers and students working in plastics technology as well as technicians and plastics technologists. Contents:Part 1 - Introductory Fundamentals: Introduction, Material Behavior of Plastics, Thermodynamics, Fluid Mechanics I, Heat TransferPart 2 - Advanced Fundamentals: Steady-State Heat Conduction, Transient Heat Conduction, Thermodynamics of Air-Drying, Fluid Mechanics II, Recycling of PlasticsPart 3 - Practical Examples

Biodegradable polymers (BDPs) based on renewable sources have been drawing scientific as well as industrial attention due to their potential to replace fossil derived polymers (FDPs) for a large number of applications. Furthermore, BDPs introduce the viability of bio-degradation at the end of their life cycle, thus reducing the environmental impact of most FDPs.This book covers the basic properties of BDPs according to their classifications, the rheology of BDPs and their blends, and their numerous applications, with an emphasis on processing: As BDPs possess attractive attributes compared to FDPs (which is discussed in the book), their processing has been investigated using conventional processing technologies. However, BDPs are sensitive to the processing conditions due to their composition, which is tuned to bio-degradation. Hence, special attention has been directed to minimize the in-process degradation and enhance their final processed properties. To remedy some of the BDP processing shortcomings, special additives, fillers, and blends have been incorporated and developed with minimal effect on the BDPs' bio-degradation rate. All of these aspects of BDP processing are considered in this book, including their characteristics in extrusion, injection molding, thermoforming, blow molding, and 3D printing, as well as the processing of recycled BDPs.

Phase separation in polymer blends has achieved a tremendous techno-commercial importance. Most of the applications of polymer blends, such as tissue engineering, membrane technology, electromagnetic shielding, energy harvesting, structural materials, packaging, smart multiphase polymer coatings, depend on the morphologies developed during processing.This book outlines the fundamental aspects of polymer blend thermodynamics, the state-of-the-art processing techniques for specific polymer blend systems currently in use, and the design and fabrication of multiphasic polymeric materials, which will present a multiplicity of opportunities in the water remediation, packaging, and electronic industries, to mention a few. It emphasizes recent research developments, processing techniques, characterization methods, factors influencing phase separation temperature in phase-separated, including partially miscible, polymer blends, and key research challenges in the development of phase-separated polymers materials.With unique and systematic coverage of the journey from fundamentals to applications in polymer blends, this book is ideal for polymer scientists and engineers, material scientists, researchers, engineers, and under- and post-graduate students who are interested in this exciting field of research. It will help industrial researchers and R&D managers bring advanced phase-separated polymer materials/products to the market.

Nanotechnology has progressed to the point where it can mimic natural systems such as porous membranes or the structure of leaves. Technological advances have resulted in a boom in the use of nanotechnology in different areas of engineering, including water purification systems. This book explores nanomaterials used for removing various textile dyes from water. It compiles 8 chapters that discuss the materials and nano systems used in these processes. This reference is designed to provide answers to common questions for scholars, academicians and technologists about fundamentals of nanoscience and nanomaterial induced removal of textile dyes. College students (physics, chemistry and materials science, engineering) will be able to easily understand the subject matter. Key Features: Covers the basics of nano systems, from synthesis to applications Explains the basics of nanomaterial behavior and characterization Describes the classifications of dyes Explains the interactions nanomaterials with different dyes Explains the reaction mechanisms of photocatalysis and the kinetics behind adsorption - two important methods for removing dyes from water Discusses nano systems that are useful for textile dye removal from water. 3 types of nano systems are included: carbon based, oxide based, polymer based or nitride based systems Includes references for further reading Simple presentation for easy and quick understanding of the subject

This book provides a basic introduction to the application of conductive polymer in corrosion protection, especially for marine environment corrosion protection research.

Perovskite Metal Oxides: Synthesis, Properties and Applications provides an overview on the topic, including the synthesis of various types of perovskites, their properties, characterization and application. The book reviews the applications of this category of materials for photovoltaics, electronics, biomedical, fuel cell, photocatalyst, sensor, energy storage and catalysis, along with processing techniques of perovskite metal oxides with a focus on low-cost and high-efficiency methods, including various properties and probable applications in academia and industry. Other sections discuss strategies to improve the functionality of perovskite metal oxide materials, including chemical methods and controlling the size, shape and structure of the materials. Finally, applications of perovskite metal oxides in energy conversion and storage, sensing and electronics are covered.

Advances in Environmental Electrochemistry provides a solid foundation in the basics of environmental electrochemistry, including redox reactions for contaminant removal, bio-electrochemical systems, electrochemical reactor design and the various electrochemistry-based techniques for practical wastewater degradation, environmental remediation and bioenergy recovery from waste. Advanced technologies acting as key indicators for addressing the various aspects of environmental electrochemistry are covered as well as comparisons to conventional methods and potential ways forward to their application in bioremediation technology. This book will be of interest to chemical engineers, environmental engineers, and all those interested in environmental biotechnology, bio-electrochemical systems, electrochemical sensors, advanced oxidation processes, biological wastewater treatment, and waste to energy recovery.

Resonance: Long-Lived Waves, a new volume in the Interface Transmission Tutorial Book series, introduces long-life resonance properties for telecommunications. The book's authors review the general analysis methods of interface transmission, giving many examples and applying these methods to telecommunications systems (materials and devices). Each chapter introduces and defines the long-lived resonances, their path states and phase shifts, and applications. This book is suitable for materials scientists and engineers in academia and R&D, and may also be appropriate for applied physicists.

Integrated Silicon-Metal Systems at the Nanoscale: Applications in Photonics, Quantum Computing, Networking, and Internet is a comprehensive guide to the interaction, materials and functional integration at the nanoscale of the silicon-metal binary system and a variety of emerging and next-generation advanced device applications, from energy and electronics, to sensing, quantum computing and quantum internet networks. The book guides the readers through advanced techniques and etching processes, combining underlying principles, materials science, design, and operation of metal-Si nanodevices. Each chapter focuses on a specific use of integrated metal-silicon nanostructures, including storage and resistive next-generation nano memory and transistors, photo and molecular sensing, harvest and storage device electrodes, phosphor light converters, and hydrogen fuel cells, as well as future application areas, such as spin transistors, quantum computing, hybrid quantum devices, and quantum engineering, networking, and internet.

Handbook of Thermosetting Foams, Aerogels, and Hydrogels: From Fundamentals to Advanced Applications presents the latest knowledge on the preparation, characterization, properties, and applications of thermoset foams, aerogels, and hydrogels.This book begins by introducing thermoset foams, aerogels, and hydrogels, their characteristics, current applications, potential for further development, and environmental impact. This is followed by three sections, each focusing on foams, aerogels, and hydrogels developed from a specifi c thermosetting polymer category, covering polyurethane, epoxy resins, and formaldehyde. In each section, detailed coverage guides the reader through the preparation, structure, characterization, properties, processing, and applications of foams, aerogels, and hydrogels based on that material, as well as addressing key challenges in terms of design, processing, and implementation, and possible solutions.This is a valuable resource for researchers and advanced students with an interest in thermoset lightweight materials, across the disciplines of polymer science, chemistry, nanotechnology, materials science, and engineering. This is also of interest to R&D professionals, engineers, and scientists working with foams, hydrogels, and aerogels for a range of applications and industries.