Download or read book Single Polymer Composites Made of Slowly Crystallizing Polymer written by Ruihua Li and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Composites are widely used in an increasing number of applications in diverse fields. However, most traditional composite materials are difficult to recycle. Because of their enhanced recyclability, thermoplastic single-polymer composites (SPCs), i.e., composites with fiber and matrix made from the same thermoplastic polymer, have attracted much attention in the recent years. High-performance polymer fibers in combination with same polymer matrices would lead to a fully recyclable single polymer composite that has major ecological advantages. However, because a single polymer is involved in the composite, thermoplastic SPCs manufacturing presents a unique set of technical problems, and different approaches from those in standard composites manufacturing are frequently needed. Two specific issues in SPCs manufacturing are how to produce distinct forms of the same polymer and how to consolidate them. So far, most investigations have been reported on a single-component hot compaction method and two-component molecular methods. However, in these methods, either the processing window is too narrow or some impure materials are introduced into the system. The key issue in thermoplastic SPCs processing is how to melt-process the matrix without significantly annealing or even melting the fiber. To overcome the above drawbacks in existing SPCs processing, particularly to widen the SPCs processing temperature window and to purify the SPCs, a novel SPCs manufacturing process utilizing the characteristics of slowly crystallizing polymers was developed and investigated. Highly oriented and highly crystalline fibers made of a slowly crystallizing polymer are mixed with the amorphous form of the same polymer and then consolidated together under heat and pressure. In this dissertation research, two slowly crystallizing polymers, poly(ethylene terephthalate) (PET) and poly(lactic acid) (PLA), were used as model systems for SPCs processing. To study the deformation and failure mechanisms of PET and PLA SPCs, the SPCs were characterized using tensile test, tearing test, impact test, SEM, optical microscopy, and other methods. The change of crystallinity and orientation of the material forms during SPCs processing were characterized by DSC and XRD. The effects of major process conditions on the performance of the SPCs were studied. It was found that the processing temperature played a profound role in affecting the fiber-matrix bonding property. The compression molded SPCs exhibited enhanced mechanical properties. For the PET SPCs with 45% by weight fiber content the tensile strength is four folds of that of non-reinforced PET. After reinforcement, the tearing strength of the PLA SPCs is almost an order higher than that of the non-reinforced PLA. The fusion bonding behavior of two crystallizable amorphous PET sheets was also studied. Several characterization methods including SEM, TEM and polarized microscopy (either on etched or on non-etched samples) were used to observe interfacial bonding morphology of the crystallizable amorphous PET sheets. For a bonded sample, a layer of transcrystals with a thickness of 1-2 ©+m was found right at the interface. A secondary but much larger zone with a distinct morphology was observed outside the transcrystal layer. With increase of the heating time, the width of the whole interfacial region decreases. The interfacial morphology was found to significantly affect the interfacial bonding quality. The testing results further indicated that high bonding temperature with an appropriate holding time promotes interfacial bonding of two crystallizable amorphous PET.
Download or read book Handbook of Composites from Renewable Materials Biodegradable Materials written by Vijay Kumar Thakur and published by John Wiley & Sons. This book was released on 2017-02-17 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique multidisciplinary 8-volume set focuses on the emerging issues concerning synthesis, characterization, design, manufacturing and various other aspects of composite materials from renewable materials and provides a shared platform for both researcher and industry. The Handbook of Composites from Renewable Materials comprises a set of 8 individual volumes that brings an interdisciplinary perspective to accomplish a more detailed understanding of the interplay between the synthesis, structure, characterization, processing, applications and performance of these advanced materials. The Handbook comprises 169 chapters from world renowned experts covering a multitude of natural polymers/ reinforcement/ fillers and biodegradable materials. Volume 5 is solely focused on 'Biodegradable Materials'. Some of the important topics include but not limited to: Rice husk and its composites; biodegradable composites based on thermoplastic starch and talc nanoparticles; recent progress in biocomposites of biodegradable polymer; microbial polyesters: production and market; biodegradable and bioabsorbable materials for osteosynthesis applications; biodegradable polymers in tissue engineering; composites based on hydroxyapatite and biodegradable polylactide; biodegradable composites; development of membranes from biobased materials and their applications; green biodegradable composites based on natural fibers; fully biodegradable all-cellulose composites; natural fiber composites with bioderivative and/or degradable polymers; synthetic biodegradable polymers for bone tissue engineering; polysaccharides as green biodegradable platforms for building up electroactive composite materials; biodegradable polymer blends and composites from seaweeds; biocomposites scaffolds derived from renewable resources for bone tissue repair; pectin-based composites; recent advances in conductive composites based on biodegradable polymers for regenerative medicine applications; biosynthesis of PHAs and their biomedical applications; biodegradable soy protein isolate/poly(vinyl alcohol) packaging films; and biodegradability of biobased polymeric materials in natural environment.
Download or read book Sustainable Polymer Composites and Nanocomposites written by Inamuddin and published by Springer. This book was released on 2019-02-01 with total page 1424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents emerging economical and environmentally friendly polymer composites that are free of the side effects observed in traditional composites. It focuses on eco-friendly composite materials using granulated cork, a by-product of the cork industry; cellulose pulp from the recycling of paper residues; hemp fibers; and a range of other environmentally friendly materials procured from various sources. The book presents the manufacturing methods, properties and characterization techniques of these eco-friendly composites. The respective chapters address classical and recent aspects of eco-friendly polymer composites and their chemistry, along with practical applications in the biomedical, pharmaceutical, automotive and other sectors. Topics addressed include the fundamentals, processing, properties, practicality, drawbacks and advantages of eco-friendly polymer composites. Featuring contributions by experts in the field with a variety of backgrounds and specialties, the book will appeal to researchers and students in the fields of materials science and environmental science. Moreover, it fills the gap between research work in the laboratory and practical applications in related industries.
Download or read book Polymer Single Crystals written by Phillip Herbert Geil and published by Krieger Publishing Company. This book was released on 1973 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Materials Science and Information Technology II written by Suo Zhang Cai and published by Trans Tech Publications Ltd. This book was released on 2012-06-14 with total page 1940 pages. Available in PDF, EPUB and Kindle. Book excerpt: The peer-reviewed papers brought together, in this special issue of Solid State Phenomena, are the outcome of the 16th International Conference on Internal Friction and Mechanical Spectroscopy, ICIFMS-16, held on the 3rd to 8th July 2011, in Lausanne, Switzerland. These proceedings aim to attract newcomers to this exciting field of research and lead them to appreciate the potential of anelastic methodologies in the investigation of advanced materials and new phenomena. Scientist who are already involved in the field will also find within new ideas which will stimulate their interest in developing new experiments and theories.
Download or read book Thermoplastics and Thermoplastic Composites written by Michel Biron and published by William Andrew. This book was released on 2012-11-12 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book bridges the technology and business aspects of thermoplastics, providing a guide designed for engineers working in real-world industrial settings. The author explores the criteria for material selection, provides a detailed guide to each family of thermoplastics, and also explains the various processing options for each material type. More than 30 families of thermoplastics are described with information on their advantages and drawbacks, special grades, prices, transformation processes, applications, thermal behaviour, technological properties (tenacity, friction, dimensional stability), durability (ageing, creep, fatigue), chemical and fire behaviour, electrical properties, and joining possibilities. Biron explores the technological properties and economics of the major thermoplastics and reinforced thermoplastics, such as polyethylene, and emerging polymers such as polybenzimidazole, Thermoplastic Elastomers (TPEs) and bioplastics. In the second edition, a new section 'plastics solutions for practical problems' provides over 25 case studies illustrating a wide range of design and production challenges across the spectrum of thermoplastics, from metal and glass replacement solutions, to fire retardant plastics and antimicrobials. In addition, Biron provides major new material on bioplastics and wood plastic composites (WPCs), and fully updated data throughout. Combining materials data, information on processing techniques, and economic aspects (pricing), Biron provides a unique end-to-end approach to the selection and use of materials in the plastics industry and related sectors Includes a new section of case studies, illustrating best practice across a wide range of applications and industry sectors New material on bioplastics and sustainable composites
Download or read book Thermosets and Composites written by Michel Biron and published by Elsevier. This book was released on 2013-11-04 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book bridges the technology and business aspects of thermosets, providing a practical guide designed for engineers working in real-world industrial settings. The author explores the criteria for material selection, provides information on material properties for each family of thermosets, and discusses the various processing options for each material type. He explains advantages and disadvantages of using thermosets and composites in comparison to competing materials and assesses cost aspects, enabling the reader to balance out technical and economic constraints when choosing a thermoset and processing technology for a given application.This second edition contains a new section on composites solutions for practical problems, gathering information on trends contributing to the breakthrough of composites in various sectors. Other new sections on specific crosslinking processes, processing trends, machinery and equipment manufacturers, applications, bio-sourced thermosets and natural fibers, and recycling of thermosets and composites are included. Case studies are provided, illustrating many design and production challenges. Furthermore, new market data and information about health and safety will be added. All data is fully updated throughout, with pricing in USD and EUR, and both ASTM (North American) and European standards.Thermosets and Thermoset Composites, Second Edition is the only book that gives in-depth coverage of a wide range of subject matters and markets, yet in brevity and concision in a single volume, avoiding the need of consulting a series of other specialized books. By providing the knowledge necessary for selecting a fabrication process, thermoset material and methods for determining the all important cost of thermoset parts this new edition is an invaluable decision-making aid and reference work for practitioners in a field with growing importance. Combining materials data, information on processing techniques, and economic aspects, Biron provides a unique end-to-end approach to the selection and use of materials in the plastics industry and related sectors New material on bio-sourced thermosets, natural fibers, and recycling of thermosets Concise and easy-to-use source of information and decision-making aid
Download or read book Polymer Single Crystals written by and published by . This book was released on 1963 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Plastics and Composites written by Miller and published by CRC Press. This book was released on 1995-11-30 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This introduction offers well-ordered coverage of the major topics related to the mechanical properties of plastics. It provides: clear examples of the data needed for the analysis of plastics behaviour and engineering applications; the background required to understand developments in plastics engineering; and state-of-the-art results.
Download or read book Polymer Matrix Composites and Technology written by Ru-Min Wang and published by Elsevier. This book was released on 2011-07-14 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given such properties as low density and high strength, polymer matrix composites have become a widely used material in the aerospace and other industries. Polymer matrix composites and technology provides a helpful overview of these materials, their processing and performance.After an introductory chapter, part one reviews the main reinforcement and matrix materials used as well as the nature of the interface between them. Part two discusses forming and molding technologies for polymer matrix composites. The final part of the book covers key aspects of performance, including tensile, compression, shear and bending properties as well as impact, fatigue and creep behaviour.Polymer matrix composites and technology provides both students and those in industry with a valuable introduction to and overview of this important class of materials. Provides a helpful overview of these materials, their processing and performance incorporating naming and classification of composite materials Reviews the main reinforcement and matrix materials used as well as the nature of the interface between them including damage mechanisms Discusses forming and molding technologies for polymer matrix composites outlining various techniques and technologies
Download or read book Handbook of Polypropylene and Polypropylene Composites Revised and Expanded written by Harutun Karian and published by CRC Press. This book was released on 2003-03-25 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building on the success of its predecessor with completely revised material and six new chapters, the Handbook of Polypropylene and Polypropylene Composites, Second Edition responds to increasing interest and changing global trends in the manufacture and application of polypropylene resin. The authors highlight viable options for the manufacture of polypropylene composites to better accommodate market requirements across various industries. The second edition introduces chapters on high-purity submicron talc fillers with lamellar microstructures, the utilization of Wollastonite fibers for polypropylene reinforcement, and updated material on nanocomposite production using exfoliated clay treated with maleated polypropylene-based materials, among many other topics.
Download or read book Silane Coupling Agents written by Edwin P. Plueddemann and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: * It has been rumored that a bumble bee has such aerodynamic deficiencies that it should be incapable of flight. Fiberglass-reinforced polymer com posites, similarly, have two (apparently) insurmountable obstacles to per formance: 1) Water can hydrolyze any conceivable bond between organic and inorganic phase, and 2) Stresses across the interface during temperature cycling (resulting from a mismatch in thermal expansion coefficients) may exceed the strength of one of the phases. Organofunctional silanes are hybrid organic-inorganic compounds that are used as coupling agents across the organic-inorganic interface to help overcome these two obstacles to composite performance. One of their functions is to use the hydrolytic action of water under equilibrium condi tions to relieve thermally induced stresses across the interface. If equilib rium conditions can be maintained, the two problems act to cancel each other out. Coupling agents are defined primarily as materials that improve the practical adhesive bond of polymer to mineral. This may involve an increase in true adhesion, but it may also involve improved wetting, rheology, and other handling properties. The coupling agent may also modify the inter phase region to strengthen the organic and inorganic boundary layers.
Download or read book Inorganic Whisker Reinforced Polymer Composites written by Qiuju Sun and published by CRC Press. This book was released on 2015-08-18 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic-Whisker-Reinforced Polymer Composites: Synthesis, Properties and Applications gives a comprehensive presentation of inorganic microcrystalline fibers, or whiskers, a polymer composite filler. It covers whisker synthesis, surface modification, applications for reinforcing polymer-matrix composites, and analysis of resulting filled polymer
Download or read book Journal of Polymer Science written by and published by . This book was released on 1972 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hybrid Polymer Composite Materials written by Vijay Kumar Thakur and published by Woodhead Publishing. This book was released on 2017-06-03 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid Polymer Composite Materials: Processing presents the latest on these composite materials that can best be described as materials that are comprised of synthetic polymers and biological/inorganic/organic derived constituents. The combination of unique properties that emerge as a consequence of the particular arrangement and interactions between the different constituents provides immense opportunities for advanced material technologies. This series of four volumes brings an interdisciplinary effort to accomplish a more detailed understanding of the interplay between synthesis, structure, characterization, processing, applications, and performance of these advanced materials, with this volume focusing on their processing. Provides a clear understanding of the present state-of-the-art and the growing utility of hybrid polymer composite materials Includes contributions from world renowned experts and discusses the combination of different kinds of materials procured from diverse resources Discusses their synthesis, chemistry, processing, fundamental properties, and applications Provides insights on the potential of hybrid polymer composite materials for advanced applications
Download or read book Engineered Materials Abstracts written by and published by . This book was released on 1994-07 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Maro Polymer Notes written by and published by . This book was released on 1999 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
