Mechanical And Thermal Properties Of Liquid Crystal Polymer Organoclay Composite
Download Mechanical And Thermal Properties Of Liquid Crystal Polymer Organoclay Composite full books in PDF, epub, and Kindle. Read online free Mechanical And Thermal Properties Of Liquid Crystal Polymer Organoclay Composite ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author | : |
Publisher | : |
Total Pages | : 148 |
Release | : 2006 |
Genre | : Biosurfactants |
ISBN | : 9789741433865 |
The liquid crystal polymer/organoclay composites were prepared by melt intercalation of liquid crystal polymer and montmorillonite clay organically modified with intercalating agent. The surfactant, haxadecyltrimethyl ammonium bromide was used to modify the montmorillonite surface to obtain the organoclay by ionic exchange between the interlayer cation and the surfactant cation. The resulting liquid crystal polymer intercalated into the organoclay was characterized by X-ray diffraction (XRD) and Fourier Transform Infrared spectrometry (FTIR). Tensile testing indicated that the reinforcement in the composites was more effective than pure polymer. The thermal stability and flammability of the liquid crystal polymer/organoclay composite were measured by thermogravimetric analysis (TGA) and UL- 94, respectively. By adding organoclay, the thermal stability was improved but the surfactant decreased the thermal stability. The UL- 94, V- 0 rating was achieved for the liquid crystal polymer/organoclay composites with varying organoclay contents.
Author | : Witold Brostow |
Publisher | : Springer Science & Business Media |
Total Pages | : 534 |
Release | : 2013-11-27 |
Genre | : Technology & Engineering |
ISBN | : 1461557992 |
may never overcome the effects of hysteresis and stress (see Chapters 6 and 12). The first sentence of the reference work, Handbook of Liquid Crystals, reads: The terms liquid crystals, crystalline liquid, mesophase, and mesomorphous state are used synonymously to describe a state of aggregation that exhibits a molecular order in a size range similar to that of a crystal but acts more or less as a viscous liquid: [2] In other words, molecules within a liquid crystalline phase possess some orientational order and lack positional order; furthermore, the shape of a liquid crystalline sample is determined by the vessel in which it is contained rather than by the orientational order of its aggregated molecules. The authors recognized the limitations and imprecision of this definition but, like others preceding them, could not devise a simple and generally applicable one that is better. Regardless, the terms 'liquid crystal' and 'mesophase' should not be used interchangeably. As mentioned above, all liquid crystals are mesophases, but all mesophases are not liquid crystals. Recent studies, employing elaborate and sophisticated analytical techniques, have permitted finer distinctions between classical crystals and mesophases. At the same time, they have made definitions like that from the Handbook of Liquid Crystals somewhat obsolete for reasons other than terminology. One part of the problem arises from the use of a combination of bulk properties (like flow) and microscopic properties (like molecular ordering) within the same definition.
Author | : Vijay Kumar Thakur |
Publisher | : Springer |
Total Pages | : 536 |
Release | : 2015-08-25 |
Genre | : Technology & Engineering |
ISBN | : 3319202707 |
This book introduces various applications of liquid crystalline polymers as the emerging new class of high performance novel materials. The authors detail the advantageous properties of these LCs including optical anisotropic, transparency and easy control over structure. This interdisciplinary work includes valuable input from international projects with special focus on the use of liquid crystalline polymers and/or nanocomposites.
Author | : Domenico Acierno |
Publisher | : Springer Science & Business Media |
Total Pages | : 331 |
Release | : 2013-11-27 |
Genre | : Technology & Engineering |
ISBN | : 940091511X |
Liquid crystal polymers (LCPs) have many strange properties that may be utilized to advantage in the processing of products made from them and their blends with isotropic polymers. This volume (volume 2 in the series Polymer Liquid Crystals) deals with their strange flow behaviour and the models put forward to explain the phenomena that occur in such polymers and their blends. It has been known for some time that small ad ditions of a thermotropic LCP to isotropic polymers not only gives an improvement in the strength and stiffness of the blend but improves the processability of the blend over that of the isotropic polymer. In the case of lyotropic LCPs, it is possible to create a molecular composite in which the reinforcement of an isotropic polymer is achieved at a molecular level by the addition of the LCP in a common solvent. If the phenomena can be fully understood both the reinforcement and an increase in the proces sability of isotropic polymers could be optimized. This book is intended to illustrate the current theories associated with the flow of LCPs and their blends in the hope that such an optimization will be achieved by future research. Chapter 1 introduces the subject of LCPs and describes the ter minology used; Chapter 2 then discusses the more complex phenomena associated with these materials. In Chapter 3, the way in which these phe nomena may be modelled using hamiltonians is fully covered.
Author | : Ray Suprakas Sinha |
Publisher | : Newnes |
Total Pages | : 412 |
Release | : 2013-04-01 |
Genre | : Technology & Engineering |
ISBN | : 0444594604 |
Clay-Containing Polymer Nanocomposites covers everything from fundamental understanding to real applications of clay-containing polymer nanocomposites, including environmental considerations. The book's coverage of fundamentals and generalities, in addition to in-depth coverage of polymer layered silicate nanocomposites, make it a valuable companion for beginners in the field as well as more seasoned researchers. This book provides a rare coherent approach to this class of materials. This title is ideal for polymer and material scientists, researchers, and engineers, including under- and post-graduate students who are interested in this exciting field of research. This book will also help industrial researchers and R&D managers who want to bring advanced polymeric material based products into the market. Details crystallization behavior and kinetics to aid in applications such as injection molding Covers melt-state rheological properties, aiding understanding of the processability of materials Presents applications and market potential, supporting R&D managers who want to bring advanced polymeric material-based products into the market.
Author | : Joseph H. Koo |
Publisher | : Cambridge University Press |
Total Pages | : 719 |
Release | : 2016-10-31 |
Genre | : Technology & Engineering |
ISBN | : 1316094413 |
This book is focused primarily on polymer nanocomposites, based on the author's research experience as well as open literature. The environmental health and safety aspects of nanomaterials and polymer nanocomposites, risk assessment and safety standards, and fire toxicity of polymer nanocomposites, are studied. In the final chapter, a brief overview of opportunities, trends, and challenges of polymer nanocomposites are included. Throughout the book, the theme is developed that polymer nanocomposites are a whole family of polymeric materials whose properties are capable of being tailored to meet specific applications. This volume serves as a general introduction to students and researchers just entering the field and to scholars from other subfields seeking information.
Author | : Vikas Mittal |
Publisher | : CRC Press |
Total Pages | : 254 |
Release | : 2013-10-18 |
Genre | : Technology & Engineering |
ISBN | : 146655813X |
Advancements in polymer nanocomposite foams have led to their application in a variety of fields, such as automotive, packaging, and insulation. Employing nanocomposites in foam formation enhances their property profiles, enabling a broader range of uses, from conventional to advanced applications. Since many factors affect the generation of nanost
Author | : Klaus Friedrich |
Publisher | : Elsevier |
Total Pages | : 568 |
Release | : 2011-08-30 |
Genre | : Technology & Engineering |
ISBN | : 0080559085 |
The area of tribology deals with the design, friction, wear and lubrication of interacting surfaces in relative motion. Polymer nanocomposite materials are increasingly common and offer remarkable improvements in the friction and wear properties of both bulk materials and coatings. This book gives a comprehensive description of polymeric nanocomposites, both as bulk materials and as thin surface coatings, and their behavior and potential use in tribological applications. It provides the preparation techniques, friction and wear mechanisms, properties of polymeric nanocomposites, characterization, evaluation and selection methodology. It also provides various examples of application of polymeric nanocomposites. Provides a complete reference from the preparation to the selection of polymeric nanocomposites Explains the theory through examples of real-world applications More than 20 international tribology experts contribute to their area of expertise
Author | : |
Publisher | : ScholarlyEditions |
Total Pages | : 14170 |
Release | : 2012-12-26 |
Genre | : Technology & Engineering |
ISBN | : 1464990468 |
Advances in Nanotechnology Research and Application / 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Nanotechnology. The editors have built Advances in Nanotechnology Research and Application / 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Nanotechnology in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Nanotechnology Research and Application / 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author | : Md Rezaur Rahman |
Publisher | : Woodhead Publishing |
Total Pages | : 304 |
Release | : 2018-06-13 |
Genre | : Technology & Engineering |
ISBN | : 0081021305 |
The production of ‘polymer nanocomposites’ has recently gained considerable attention from both the academic and industrial community, especially in the area of nanoscience. This is mainly due to their enhanced improvements in physico-mechanical, thermal and barrier properties compared to micro and more conventional composites. Their nanoscale dimensions, biodegradable character, cost-effectiveness and sustainability have constituted a stimulus for this increasing interest. Currently there is no limit to the possibility of applications. However, despite all this progress, it is still difficult to achieve uniform dispersion between the filler and the matrix, as agglomerations form far too easily and the production of polymer nanocomposites with high mechanical and thermal properties is still limited. The authors of this proposed book, are of the opinion, that with the increase in scientific publications and the rapid progress in processing possibilities to produce nanocomposites based on various nanoscale fillers (silica/clay), a book that collects all of these scientific findings in one place would be timely and of great interest to both students and scientific researchers, who are concerned with the production, and application of nanocomposites as new innovative materials. The authors aim is to present the latest research findings on the fabrication, properties and applications of nanofillers as reinforcement in polymer nanocomposites. Particular emphasis will be placed on the introduction of various nanofillers (silica/clay) into different elastomeric polymer matrices that will enhance the properties of these materials and their applications. The book will provide an up-to-date review of major innovations in the field and act as a reference for future research in materials science and engineering, which is highly topical due to the demand to produce more sustainable and eco-friendly innovative advanced materials from elastomeric polymers. Emphasis on silica/clay as outstanding reinforcing potential in elastomeric polymer matrices Up-to-date on the most relevant innovations in the field of silica/clay nanocomposites and their extensive applications in advanced material science Establishes the most suitable fabrication methods, properties and applications as a solid foundation in materials science and engineering disciplines Includes the incorporation of dual nanofillers that significantly improve the properties of nanocomposites