Download or read book Atomistic Simulations of CpPOSS PE Nanocomposites written by Franco Mario Capaldi and published by . This book was released on 2005 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) The POSS was found to aggregate into small necklace structures which have internal ordering similar to the crystal phase. The formation of crystallites was found to be energetically favorable in this system. A coarse grained potential which accounts for both the attraction and orientation between particles was developed to aid the further study of aggregation and crystallization in these composites. The interface between the POSS and the polymer is found to consist of polymer chains aligned tangentially to the POSS cage. This layer has increased mobility tangential to the surface of the particle and decreased mobility in the radial direction. Though it is very thin, consisting of only 1 or 2 monolayers of polymer, due to the small size of the POSS particle, the weight fraction of polymer in the interfacial region is as high as 43 % in the 25 weight percent CpPOSS/PE composite. These simulations reveal the formation of structure on both the angstrom length scale in the polymer near the interface and the mesoscopic length scale between the POSS particles.
Download or read book Properties and Applications of Polymer Nanocomposites written by Deba Kumar Tripathy and published by Springer. This book was released on 2017-05-07 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the present edited book is to furnish scientific information about manufacturing, properties, and application of clay and carbon based polymer nanocomposites. It can be used as handbook for undergraduate and post graduate courses (for example material science and engineering, polymer science and engineering, rubber technology, manufacturing engineering, etc.) as well as as reference book for research fellows and professionals. Polymer nanocomposites have received outstanding importance in the present decade because of their broad range of high-performance applications in various areas of engineering and technology due to their special material properties. A great interest is dedicated to nanofiller based polymeric materials, which exhibit excellent enhancement in macroscopic material properties (mechanical, thermal, dynamic mechanical, electrical and many more) at very low filler contents and can therefore be used for the development of next-generation composite materials.
Download or read book Plasma Processes and Polymers written by Riccardo d'Agostino and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume compiles essential contributions to the most innovative fields of Plasma Processes and Polymers. High-quality contributions cover the fields of plasma deposition, plasma treatment of polymers and other organic compounds, plasma processes under partial vacuum and at atmospheric pressure, biomedical, textile, automotive, and optical applications as well as surface treatment of bulk materials, clusters, particles and powders. This unique collection of refereed papers is based on the best contributions presented at the 16th International Symposium on Plasma Chemistry in Taormina, Italy (ISPC-16, June 2003). A high class reference of relevance to a large audience in plasma community as well as in the area of its industrial applications.
Download or read book Shape Memory Polymers and Textiles written by Jinlian Hu and published by Elsevier. This book was released on 2007-04-30 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shape memory polymers (SMPs) are smart materials that, as a result of an external stimulus such as temperature, can change from a temporary deformed shape back to an original shape. SMPs are finding an increasing use in such areas as clothing where they respond dynamically to changes in heat and moisture levels, ensuring greater comfort for the wearer. Shape memory polymers and textiles provides an authoritative and comprehensive review of these important new materials and their applications. After an introductory chapter on the concept and definition of shape memory materials, the book reviews methods for synthesising, characterising and modelling SMPs. It goes on to consider the properties of particular materials such as shape memory polyurethane and environmentally-sensitive polymer gels. The book concludes by assessing potential applications such as wrinkle-free fabrics and smart fabrics providing improved protection and comfort for the wearer. Shape memory polymers and textiles is a valuable guide to R&D staff in such areas as textile apparel in developing a new generation of smart textiles and other products. Reviews the structure, synthesis and preparation of shape memory polymers Assesses methods for analysing and modelling shape memory properties An authoritative overview of particular fibres such as shape memory polyurethane (SMPU)
Download or read book Shape Memory Polymers written by Jinlian Hu and published by Smithers Rapra. This book was released on 2014-05-27 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shape-memory polymers (SMP) are a unique branch of the smart materials family which are capable of changing shape on-demand upon exposure to external stimulus. The discovery of SMP made a significant breakthrough in the developments of novel smart materials for a variety of engineering applications, superseded the traditional materials, and also influenced the current methods of product designing. This book provides the latest advanced information of on-going research domains of SMP. This will certainly enlighten the reader to the achievements and tremendous potentials of SMP. The basic fundamentals of SMP, including shape-memory mechanisms and mechanics are described. This will aid reader to become more familiar with SMP and the basic concepts, thus guiding them in undergoing independent research in the SMP field. The book also provides the reader with associated challenges and existing application problems of SMP. This could assist the reader to focus more on these issues and further exploit their knowledge to look for innovative solutions. Future outlooks of SMP research are discussed as well. This book should prove to be extremely useful for academics, R&D managers, researcher scientists, engineers, and all others related to the SMP research.
Download or read book Actively Moving Polymers written by Andreas Lendlein and published by . This book was released on 2015-06-30 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years there has been a surge of interest in actively moving polymers, materials which can change shape in response to specific stimuli, as they can be used in well-known technologies such as packaging materials, but also as smart textiles and promising biomedical applications such as artificial muscles. To date, there is currently no resource covering the full array of these interesting materials. Actively Moving Polymers will cover both shape-memory polymers (materials which can be deformed into a new temporary shape and recover their original shape) and shape-changing polymers (materials which change their shape as long as they are exposed to a stimulus, such as expansion or shrinking). The book explores both the fundamental mechanisms and applications of different systems including dual-shape polymers, shape-memory composites, water-triggered shape changes, thermally-induced shape-changing polymers and self-oscillating gels. Readers will gain a comprehensive overview of actively moving polymers from leading scientists in the field and through example applications inspiration for new product ideas. This book provides everything you need to know about actively moving polymers in one place.
Download or read book Atomic Radiation and Polymers written by A. Charlesby and published by Elsevier. This book was released on 2016-06-06 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomic Radiation and Polymers examines the effects of radiation on polymer materials. The title deals with chemical changes that took place when polymers are exposed to radiation, and how these changes affect the physical properties of the polymers. The text first covers the interaction of radiation and matter, along with radiation sources and dosimetry. Next, the selection deals with the general properties of long chain polymers. The text also details the organic molecules and irradiated polymers. Chapters 22 to 24 tackle the radiation-induced changes in nuclear chain reaction, while Chapter 25 discusses the irradiation of polymers in solution where both direct and indirect effects occur. The next series of chapters details the theoretical aspects of reactions between the initial acts of ionization or excitation. The last two chapters cover the conductivity change at low radiation intensities, along with the data on radiation damage at very high intensities. The book will be of great interest to researchers and practitioners from the field of nuclear science and polymer technology.
Download or read book Shape Memory Polymers and Multifunctional Composites written by Jinsong Leng and published by CRC Press. This book was released on 2019-08-30 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Admired for their extraordinary stimuli-sensitive behavior and shape-changing capabilities, shape-memory polymers (SMPs) and multifunctional composites are among the most important smart materials. They continue to be widely applied in many diverse fields to create things such as self-deployable spacecraft structures, morphing structures, SMP foams, smart textiles, and intelligent medical devices. Written by renowned authors, Shape-Memory Polymers and Multifunctional Composites is a broad overview of the systematic progress associated with this emerging class of materials. The book presents an overview of SMPs and a detailed discussion of their structural, thermo-mechanical, and electrical properties, and their applications in fields including aeronautics, astronautics, biomedicine, and the automotive industry. Covering topics ranging from synthesis procedures to ultimate applications, this is a sound instructional text that serves as a guide to smart materials and offers an in-depth exploration of multifunctional SMPs and SMP composites, outlining their important role in the materials field. In each chapter, industry experts discuss different key aspects of novel smart materials, from their properties and fabrication to the actuation approaches used to trigger shape recovery. This comprehensive analysis explores the different functions of SMPs, the fundamentals behind them, and the ways in which polymers may reshape product design in general.
Download or read book Shape Memory Polymers for Biomedical Applications written by L Yahia and published by Elsevier. This book was released on 2015-03-19 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shape memory polymers (SMPs) are an emerging class of smart polymers which give scientists the ability to process the material into a permanent state and predefine a second temporary state which can be triggered by different stimuli. The changing chemistries of SMPs allows scientists to tailor important properties such as strength, stiffness, elasticity and expansion rate. Consequently SMPs are being increasingly used and developed for minimally invasive applications where the material can expand and develop post insertion. This book will provide readers with a comprehensive review of shape memory polymer technologies. Part 1 will discuss the fundamentals and mechanical aspects of SMPs. Chapters in part 2 will look at the range of technologies and materials available for scientific manipulation whilst the final set of chapters will review applications. Reviews the fundamentals of shape memory polymers with chapters focussing on the basic principles of the materials Comprehensive coverage of design and mechanical aspects of SMPs Expert analysis of the range of technologies and materials available for scientific manipulation
Download or read book Liquid Crystal Elastomers written by Mark Warner and published by Oxford University Press. This book was released on 2007-04-05 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is a primer for liquid crystals, polymers, rubber and elasticity. It is directed at physicists, chemists, material scientists, engineers and applied mathematicians at the graduate student level and beyond.
Download or read book Shape Memory Alloys written by Dimitris C. Lagoudas and published by Springer Science & Business Media. This book was released on 2008-06-05 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a working knowledge of the modeling and engineering applications of shape memory alloys (SMAs), beginning with a rigorous introduction to continuum mechanics and continuum thermodynamics as they relate to the development of SMA modeling.Modern SMAs can recover from large amounts of bending and deformation, and millions of repetitions within recoverable ranges. SMAs are used in the medical industry to create stents, in the dental industry to create dental and orthodontic archwires, and in the aerospace industry to create fluid fittings. The text presents a unified approach to the constitutive modeling of SMAs, including modeling of magnetic and high temperature SMAs.
Download or read book Physical Properties and Applications of Polymer Nanocomposites written by S C Tjong and published by Elsevier. This book was released on 2010-10-29 with total page 943 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer nanocomposites are polymer matrices reinforced with nano-scale fillers. This new class of composite materials has shown improved mechanical and physical properties. The latter include enhanced optical, electrical and dielectric properties. This important book begins by examining the characteristics of the main types of polymer nanocomposites, then reviews their diverse applications. Part one focuses on polymer/nanoparticle composites, their synthesis, optical properties and electrical conductivity. Part two describes the electrical, dielectric and thermal behaviour of polymer/nanoplatelet composites, whilst polymer/nanotube composites are the subject of Part three. The processing and industrial applications of these nanocomposite materials are discussed in Part four, including uses in fuel cells, bioimaging and sensors as well as the manufacture and applications of electrospun polymer nanocomposite fibers, nanostructured transition metal oxides, clay nanofiller/epoxy nanocomposites, hybrid epoxy-silica-rubber nanocomposites and other rubber-based nanocomposites. Polymer nanocomposites: Physical properties and applications is a valuable reference tool for both the research community and industry professionals wanting to learn about the these materials and their applications in such areas as fuel cell, sensor and biomedical technology. Examines the characteristics of the main types of polymer nanocomposites and reviews their diverse applications Comprehensively assesses polymer/nanoparticle composites exploring experimental techniques and data associated with the conductivity and dielectric characterization A specific section on polymer/nanotube composites features electrical and dielectric behaviour of polymer/carbon nanotube composites
Download or read book Polymer Nanoclay Composites written by Stephan Laske and published by William Andrew. This book was released on 2015-01-09 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a major lack of fundamental knowledge and understanding on the interaction between a filler and the polymer matrix. When it comes to nanoscale fillers, such as layered silicates, carbon nanotubes, graphene or cellulose nanofibers it is even more important to know accurate structure-property relationships as well as identifying the parameters influencing material behavior. The reason for the lack of knowledge on how to process nanocomposites and why there are so few applications is that several scientific fields are affected and a joint effort of those scientific communities involved is necessary – starting from the filler manufacturing or pre-processing over polymer chemistry to the polymer processing. In Polymer Nanoclay Composites, all involved scientific areas are viewed together for the first time, providing an all-embracing coverage of all stages of polymer clay nanocomposites processing from lab-scale to industrial scale – stages from the raw material over manufacturing of polymer clay nanocomposites to characterization and the final products. Readers will gain insight in the physical/chemical pre-processing of layered silicates and their incorporation into a polymer matrix using sophisticated technologies (such as advanced compounding) as well as in real-time quality control of the nanocomposite production and future prospects. The book also describes nanotoxicological and nanosafety aspects. Covers the whole processing route with all aspects of the nanocomposites industry with particular focus on the processing of polymer clay nanocomposites Includes quality control and nanosafety Multidisciplinary approach from an industrial perspective
Download or read book Polyurethane Elastomers written by C. Hepburn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this monograph has been to distil into a single volume, in an easily read and assimilated format, the essentials of this often complex technology such that it is usable by all technical and semi-technical people who wish to become their own polyurethane and polyurethane elastomer expert.
Download or read book Biomedical Applications of Hydrogels Handbook written by Raphael M. Ottenbrite and published by Springer Science & Business Media. This book was released on 2010-09-05 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogels are networks of polymer chains which can produce a colloidal gel containing over 99 per cent water. The superabsorbency and permeability of naturally occurring and synthetic hydrogels give this class of materials an amazing array of uses. These uses range from wound dressings and skin grafts to oxygen-permeable contact lenses to biodegradable delivery systems for drugs or pesticides and scaffolds for tissue engineering and regenerative medicine. Biomedical Applications of Hydrogels Handbook provides a comprehensive description of this diverse class of materials, covering both synthesis and properties and a broad range of research and commercial applications. The Handbook is divided into four sections: Stimuli-Sensitive Hydrogels, Hydrogels for Drug Delivery, Hydrogels for Tissue Engineering, and Hydrogels with Unique Properties. Key Features: Provides comprehensive coverage of the basic science and applications of a diverse class of materials Includes both naturally occurring and synthetic hydrogels Edited and written by world leaders in the field.
Download or read book Shape Memory Polymers written by Andreas Lendlein and published by Springer. This book was released on 2010-06-03 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of Contents -Shape-Memory Polymers and Shape-Changing Polymers By M. Behl, J. Zotzmann, and A. Lendlein -Shape-Memory Polymer Composites By Samy A. Madbouly and Andreas Lendlein -Characterization Methods for Shape-Memory Polymers By W. Wagermaier, K. Kratz, M. Heuchel, and A. Lendlein -Shape-Memory Polymers for Biomedical Applications By Christopher M. Yakacki and Ken Gall -Controlled Drug Release from Biodegradable Shape-Memory Polymers By ChristianWischke, Axel T. Neffe, and Andreas Lendlein
Download or read book Modification of Polymer Properties written by Carlos Federico Jasso-Gastinel and published by William Andrew. This book was released on 2016-09-14 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modification of Polymer Properties provides, for the first time, in one title, the latest information on gradient IPNs and gradient copolymers. The book covers the broad range of polymer modification routes in a fresh, current view representing a timely addition to the technical literature of this important area. Historically, blends, copolymers, or filled polymers have been developed to meet specific properties, or to optimize the cost/properties relationship. Using the gradient structure approach with conventional radical polymerization, it has been shown that it is possible to optimize properties if appropriate gradients in the composition of copolymer chains are obtained. An overview of the gradient structure approach for designing polymers has not appeared in the recent literature and this title covers the different methods used to modify properties, offering the whole range of ways to modify polymers in just one volume and making this an attractive option for a wide audience of practitioners. The approach for each chapter is to explain the fundamental principles of preparation, cover properties modification, describe future research and applications as examples of materials that may be prepared for specific applications, or that are already in use, in present day applications. The book is for readers that have a basic background in polymer science, as well as those interested in the different ways to combine or modify polymer properties. Provides an integrated view on how to modify polymer properties Presents the entire panorama of polymer properties modification in one reference, covering the essential information in each topic Includes the optimization of properties using gradients in polymers composition or structure
