Download or read book Development of Highly Oriented Polymers with Improved Mechanical Properties written by Eberhard A. Meinecke and published by . This book was released on 1974 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The basic need for stronger polymeric films is discussed in the context of new theoretical and experimental evidence. It is shown that extended-chain crystals of polymers, that is, polymer chains which do not fold back on themselves should have high strength and stiffness. However, it is necessary to use these materials in the form of films that have all of the chains oriented in one direction. It is shown that such laminates should and do have enhanced mechanical properties. Experiments to produce such oriented films with polyethylene crystallized in a shear field are reported. A stirred, high- pressure crystallizer was designed and assembled, although no data have yet been obtained. Screening tests to evaluate a variety of materials were conducted with several polymers. Poly(n-alkyl isocyanates) were cast as ultra-thin films and show promise as a high regular extended-chain crystal. Preliminary x-ray diffraction studies of these materials were performed.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oriented Polymer Materials written by Stoyko Fakirov and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developments in Oriented Polymers 2 written by Ian M. Ward and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last four years since the publication of the first of this series have seen further striking developments in both the science and technology of oriented polymers. In particular, polymers possessing very high degrees of molecular orientation are now quite commonplace, and this is reflected by the inclusion of five chapters dealing with ultra-high modulus polyethylene fibres, oriented liquid crystalline polymers (both lyotropics and thermo tropics) and polydiacetylene single crystal fibres. At the same time there is continuing interest in the structure and properties of less highly oriented polymers and in the mechanisms of deformation in polymers. It is therefore good to have these themes represented also. I should like to thank the contributors for adhering to a rather tight time schedule, and the publishers for their cooperation, so that this book can provide up-to-date reviews of the state of the art in a rapidly moving area of polymer science. I. M. WARD v CONTENTS Preface.... . . . .. . . . . .. ... . . . . . . . . . .. . . .. . . . . . . ... ... v List of Contributors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IX 1. Polymer Single Crystal Fibres ........................ .
Download or read book SPE ANTEC 2001 Proceedings written by Spe and published by CRC Press. This book was released on 2001-05-07 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conference proceedings from 'Antec 2001' held on 6-10 May 2001 in Dallas, Texas. This includes the Volume III topic of Special Areas Color and Appearance Division.
Download or read book SPE ANTEC 1997 Proceedings written by Spe and published by CRC Press. This book was released on 1997-04-22 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1997. Routledge is an imprint of Taylor & Francis, an informa company.
Download or read book High Modulus Polymers written by Zachariades and published by CRC Press. This book was released on 2020-09-10 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reflects understanding of property enhancement through development of molecular structure. It focuses on liquid crystalline and semicrystalline polymers that provide a state of the art knowledge of the molecular organizations.
Download or read book Self Healing Polymers written by Wolfgang H. Binder and published by John Wiley & Sons. This book was released on 2013-03-29 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-healing is a well-known phenomenon in nature: a broken bone merges after some time and if skin is damaged, the wound will stop bleeding and heals again. This concept can be mimicked in order to create polymeric materials with the ability to regenerate after they have suffered degradation or wear. Already realized applications are used in aerospace engineering, and current research in this fascinating field shows how different self-healing mechanisms proven successful by nature can be adapted to produce even more versatile materials. The book combines the knowledge of an international panel of experts in the field and provides the reader with chemical and physical concepts for self-healing polymers, including aspects of biomimetic processes of healing in nature. It shows how to design self-healing polymers and explains the dynamics in these systems. Different self-healing concepts such as encapsulated systems and supramolecular systems are detailed. Chapters on analysis and friction detection in self-healing polymers and on applications round off the book.
Download or read book Structure and Properties of Oriented Polymers written by I. Ward and published by Springer Science & Business Media. This book was released on 2013-12-14 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has become increasingly evident that there is much to begained from a detailed understanding of the structure and properties of polymers in the oriented state. This book reftects the growth of interest in this area of polymer scienceand attempts to give the reader an up to date viewofthe present position. The individual chapters are for the most part self contained, and cover a very wide range of topics. It is intended that each of them should serve the dual purpose of an expository introduction to the subject and a topical review of recent research. It is inevitable that there will be differences of style and approach in the contributions from the different authors. No atternpt has been made to moderate these differences, as they serve to illustrate the diversity of approaches required to give the reader a balanced view of the subject. I should like to thank the contributors for their endeavours, and especially for their patience in accepting modifications and corrections which make for consistency in the book as a whole. 1 am particularly indebted to Professor Leslie Holliday who originally approached me with the proposition that such a book would be a worthwhile venture and to the publishers who have given me every assistance in making its progress as painless as possible.
Download or read book High Performance Polymer Fibres written by P. R. Lewis and published by iSmithers Rapra Publishing. This book was released on 1999 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Lewis reviews the theory development and uses of high performance polymer fibres. He describes their manufacture, and compares the properties of different polymers. Applications of different materials are described, together with their advantages and limitations. His review is complemented by the addition of a fully indexed set of references and abstracts selected from the Polymer Library database. These provide further reading on the technology and uses of high performance polymers.
Download or read book 1973 National Science Foundation Authorization written by United States. Congress. House. Committee on Science and Astronautics. Subcommittee on Science, Research, and Development and published by . This book was released on 1972 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvement of Mechanical Properties of Polymers by Molecular Orientation written by Philip Eugene Alei and published by . This book was released on 1983 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polypropylene Structure blends and Composites written by J. Karger-Kocsis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although polypropylene has been marketed since the 1950s, research and development in this area is still vigorous. The consumption of polypropylene over the years has been relatively high, mainly due to the steady improvement of its property profile. Polypropylene: Structures, Blends and Composites, in three separate volumes, reflects on the key factors which have contributed to the success of polypropylene, dealing with all aspects of structure-performance relationships relevant to thermoplastic polymers and related composites. Volume 1, Structure and Morphology, deals with polymorphism in polypropylene homo- and copolymers, where molecular and supermolecular structures are covered, and the processing-induced structure development of polypropylene, showing the interrelation between the processing-induced morphology and mechanical performance. Volume 2, Copolymers and Blends, contains comprehensive surveys of the nucleation and crystallisation behaviour of the related systems. It includes the development of morphology and its effects on rheological and mechanical properties of polypropylene-based alloys and blends and a review of polypropylene-based thermoplastic elastomers. Volume 3, Composites, gives a comprehensive overview of filled and reinforced systems with polypropylene as a matrix material, with the main emphasis on processing-structure-property-interrelationships. Chapters cover all aspects of particulate filled, chopped fibre-, fibre mat- and continuous fibre-reinforced composites. Interfacial phenomena, such as adhesion, wetting and interfacial crystallisation, are also included as important aspects of this subject.
Download or read book High Performance Structural Fibers for Advanced Polymer Matrix Composites written by National Research Council and published by National Academies Press. This book was released on 2005-05-09 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Military use of advanced polymer matrix composites (PMC)â€"consisting of a resin matrix reinforced by high-performance carbon or organic fibersâ€"while extensive, accounts for less that 10 percent of the domestic market. Nevertheless, advanced composites are expected to play an even greater role in future military systems, and DOD will continue to require access to reliable sources of affordable, high-performance fibers including commercial materials and manufacturing processes. As a result of these forecasts, DOD requested the NRC to assess the challenges and opportunities associated with advanced PMCs with emphasis on high-performance fibers. This report provides an assessment of fiber technology and industries, a discussion of R&D opportunities for DOD, and recommendations about accelerating technology transition, reducing costs, and improving understanding of design methodology and promising technologies.
Download or read book An Introduction to the Mechanical Properties of Solid Polymers written by I. M. Ward and published by . This book was released on 1993 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores the mechanics of the behaviour of solid polymers, discussing molecular and structural interpretations and emphasizing the physical rather than the engineering approach. Readers are provided with a set of elementary problems and their solutions.
Download or read book Ullmann s Polymers and Plastics written by Wiley-VCH and published by John Wiley & Sons. This book was released on 2016-03-18 with total page 1934 pages. Available in PDF, EPUB and Kindle. Book excerpt: Your personal Ullmann's: Chemical and physical characteristics, production processes and production figures, main applications, toxicology and safety information are all to be found here in one single resource - bringing the vast knowledge of the Ullmann's Encyclopedia to the desks of industrial chemists and chemical engineers. The ULLMANN’S perspective on polymers and plastics brings reliable information on more than 1500 compounds and products straight to your desktop Carefully selected “best of” compilation of 61 topical articles from the Encyclopedia of Industrial Chemistry on economically important polymers provide a wealth of chemical, physical and economic data on more than 1000 different polymers and hundreds of modifications Contains a wealth of information on the production and use of all industrially relevant polymers and plastics, including organic and inorganic polymers, fibers, foams and resins Extensively updated: more than 30% of the content has been added or updated since the launch of the 7th edition of the Ullmann’s encyclopedia in 2011 and is now available in print for the first time 4 Volumes
Download or read book Hybrid Natural Fiber Composites written by Anish Khan and published by Woodhead Publishing. This book was released on 2021-01-21 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on natural fiber composites is an emerging area in the field of polymer science with tremendous growth potential for commercialization. Hybrid Natural Fiber Composites: Material Formulations, Processing, Characterization, Properties, and Engineering Applications provides updated information on all the important classes of natural fibers and their composites that can be used for a broad range of engineering applications. Leading researchers from industry, academia, government, and private research institutions from across the globe have contributed to this highly application-oriented book. The chapters showcase cutting-edge research discussing the current status, key trends, future directions, and opportunities. Focusing on the current state of the art, the authors aim to demonstrate the future potential of these materials in a broad range of demanding engineering applications. This book will act as a one-stop reference resource for academic and industrial researchers working in R&D departments involved in designing composite materials for semi structural engineering applications. Presents comprehensive information on the properties of hybrid natural fiber composites that demonstrate their ability to improve the hydrophobic nature of natural fiber composites Reviews recent developments in the research and development of hybrid natural fiber composites in various engineering applications Focuses on modern technologies and illustrates how hybrid natural fiber composites can be used as alternatives in structural components subjected to severe conditions
