Download or read book Electropolymerization on Carbon Fibers Effects on Composite Properties written by R. V. Subramanian and published by . This book was released on 1976 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interface tailoring in carbon fiber-polymer composites by means of electrochemical polymerization has been investigated. It was expected that fiber-matrix adhesion and composite mechanical properties can be modified by the electrochemical formation of polymer layers of varying structure and properties on carbon fibers prior to their incorporation in a polymer matrix. Techniques were developed first for producing thin polymer coatings on carbon fibers by using the latter as electrodes in an electrolytic cell containing the monomer. Composite specimens were prepared by the incorporation of the coated fibers in an epoxy matrix. It was demonstrated that, in fact, the effect of the surface treatment on the interfacial properties of the resulting composite was manifested in variations of the measured interlaminar shear and impact strengths of the composite specimens. The increase in interlaminar shear was considered to be the result of improved fiber-matrix adhesion when compared to composite specimens prepared from untreated carbon fibers. The corresponding reversed trend in impact strength values was attributed to the effect of excessive fiber-matrix adhesion in causing brittle failure of the composite. It was significant, when in exception to this general trend, it was also found that both interlaminar shear and impact strengths could simultaneously be increased.
Download or read book Electrodeposition of Polymers on Carbon Fibers written by Viswanath Sundaram and published by . This book was released on 1977 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrochemical Polymerization and Deposition on Carbon Fibers written by R. V. Subramanian and published by . This book was released on 1979 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrodic polymerization on carbon fibers of a variety of monomers having different functional groups has been investigated. The objective was to demonstrate the effect of such polymer coating on the properties of polymer composites prepared from the coated fibers. The electropolymerization of novel monomers encountered in this study was pursued in some detail. In addition to usual vinyl polymerizations, some novel cyclic monomers were identified as capable of producing the desired polymer layer on fiber under appropriate polymerization conditions. In many instances, grafting of the surface polymer to the fiber was observed.
Download or read book Carbon Fibers written by Leighton H. Peebles and published by CRC Press. This book was released on 2018-01-18 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Fibers presents an up-to-date review of the progress pertaining to the formation of carbon fibers from rayon, acrylic, and pitch precursors. The book emphasizes the preparation, characterization, and properties of commercial materials. It also considers the compressive properties of carbon fibers, the lack of correlation between surface characterization and fiber-matrix interactions, and the discrepancy between surface composition as determined by XPS and the reaction of surface groups with chemical reagents. Other topics discussed include:
Download or read book Carbon Fibers and Their Composites written by Peter Morgan and published by CRC Press. This book was released on 2005-05-20 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most literature pertaining to carbon fibers is of a theoretical nature. Carbon Fibers and their Composites offers a comprehensive look at the specific manufacturing of carbon fibers and graphite fibers into the growing surge of diverse applications that include flameproof materials, protective coatings, biomedical and prosthetics application
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbon Containing Polymer Composites written by Mostafizur Rahaman and published by Springer. This book was released on 2018-12-03 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the methods synthesizing various carbon materials, like graphite, carbon blacks, carbon fibers, carbon nanotubes, and graphene. It also details different functionalization and modification processes used to improve the properties of these materials and composites. From a geometrical–structural point of view, it examines different properties of the composites, such as mechanical, electrical, dielectric, thermal, rheological, morphological, spectroscopic, electronic, optical, and toxic, and describes the effects of carbon types and their geometrical structure on the properties and applications of composites.
Download or read book The Impact of Recycling on the Fibre and the Composite Properties of Carbon Fibre Reinforced Plastics written by Hüther, Jonas Johannes and published by KIT Scientific Publishing. This book was released on 2020-06-19 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical and Mechanical Properties of Conducive Carbon Black Polyolefin Composites Mixed With Carbon Fiber written by A. Farshidfar and published by . This book was released on 2006 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrical conductivity of polymers can be increased by the addition of conductive fillers, including forms of carbon fibers and carbon black. The resulting composites can be used in applications where metals have typically been the materials of choice. The advantages of using these materials include lighter weight, resistance to corrosion, and the ability to be readily adapted to the needs of a specific application. One of the most significant applications for conductive polymer composites are conductive carbon-polymer composite electrodes. As many properties such as conductivity, mechanical integrity, low permeability, electrochemical activity, and stability in the electrolytes are required of materials to be used as electrodes, so "material selection" plays a crucial role in fabricating these materials. In this work it was found that high density polyethylene (HDPE)/ethylene-propylene-diene monomer(EPDM) blend ratio (70/30) has lower percolation threshold and volume resistivity than individually carbon black filled HDPE and EPDM due to "double percolation" effect. Carbon fibers were also added to the polymer-carbon black mixtures to enhance the conductivity and mechanical properties. The electrical conductivity of composites with different ratios of carbon black (CB) content to carbon fiber (CF) content was studied. The CB content is the main factor to determine the resistivity of the composites filled with CB and CF. Mechanical properties, including tensile strength, elongation at break, and impact strength of the conductive composites were evaluated. The results showed that incorporation of CB and CF in the composites will enhance tensile strength, but decrease elongation at break and impact strength of the composites. In mechanical properties, CF content has a greater effect than CB content. From the comparison of the resistivity and mechanical properties of the composites filled with CB and CF with that of the composites filled with CB only, it is concluded that using CF as a substitute for part of the CB in CB-filled composites can enhance electrical and mechanical properties.
Download or read book Carbon Fiber Composites written by Deborah Chung and published by Elsevier. This book was released on 2012-12-02 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Carbon Fiber Composites, the reader is introduced to a wide range of carbon fiber composites, including polymer-matrix, metal matrix, carbon-matrix, ceramic-matrix and hybrid composites. The subject is examined in a tutorial fashion, so that no prior knowledge of the field is required. In contrast to other books on composites, this book emphasizes materials rather than mechanics, as the prominence of composite materials has resulted from their increased presence in applications other than structure. Provides up-to-date information on the entire spectrum of carbon fiber composites Emphasizes processing as the foundation of composite materials development Addresses the processing, properties and applications of each type of material systematically
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1979 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Polymer Science and Technology Concise written by Herman F. Mark and published by John Wiley & Sons. This book was released on 2013-10-16 with total page 1490 pages. Available in PDF, EPUB and Kindle. Book excerpt: The compact, affordable reference, revised and updated The Encyclopedia of Polymer Science and Technology, Concise Third Edition provides the key information from the complete, twelve-volume Mark's Encyclopedia in an affordable, condensed format. Completely revised and updated, this user-friendly desk reference offers quick access to all areas of polymer science, including important advances in nanotechnology, imaging and analytical techniques, controlled polymer architecture, biomimetics, and more, all in one volume. Like the twelve-volume full edition, the Encyclopedia of Polymer Science and Technology, Concise Third Edition provides both SI and common units, carefully selected key references for each article, and hundreds of tables, charts, figures, and graphs.
Download or read book Carbon Fibers written by Jean-Baptiste Donnet and published by CRC Press. This book was released on 1998-03-19 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Third Edition offers the latest information on the structural, surface, mechanical, electronic, thermal, and magnetic properties of carbon fibers as well as their manufacture and industrial applications from many of the world's most distinguished specialists in the field. "
Download or read book The Effect of Carbon Fiber Type on the Electrochemical Degradation of Carbon Fiber Polymer Composites Tri Service Committee on Corrosion Proceedings written by and published by . This book was released on 1994 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The galvanic interaction between metals and carbon fiber/polymer matrix composite degrades not only the metals but the composite itself. The objective of this study was to investigate if the fiber type influenced either the mechanism or form of damage. Two different composites were examined. Both have same epoxy matrix, 3501-6 epoxy, but contain different carbon fibers, either AS4 or IM6. The surfaces of the composite materials were exposed to 0.5 N NaCl solution to simulate sea water at open circuit condition or cathodic potentials to simulate galvanic coupling of metals. Electrochemical impedance spectroscopy (EIS) was employed to monitor changes in the behavior of the composites. Modeling of experimental data indicated that the parameter, Rp, representing the polymer resistance decreased with increasing time of exposure for both open circuit conditions and applied cathodic potentials. The value of Rp also decreased with increasingly cathodic applied potentials. This suggested that a damage process for the polymer involving increased access of solution to the carbon fibers. SEM examination showed that cracks and polymer separations on the exposed but not on the unexposed surfaces. The fiber type did not appear to influence the damage mechanism in this study.
Download or read book Engineered Interfaces in Fiber Reinforced Composites written by Jang-Kyo Kim and published by Elsevier. This book was released on 1998-10-21 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study and application of composite materials are a truly interdisciplinary endeavour that has been enriched by contributions from chemistry, physics, materials science, mechanics and manufacturing engineering. The understanding of the interface (or interphase) in composites is the central point of this interdisciplinary effort. From the early development of composite materials of various nature, the optimization of the interface has been of major importance. While there are many reference books available on composite materials, few of them deal specifically with the science and mechanics of the interface of fiber reinforced composites. Further, many recent advances devoted solely to research in composite interfaces have been scattered in a variety of published literature and have yet to be assembled in a readily accessible form. To this end this book is an attempt to bring together recent developments in the field, both from the materials science and mechanics perspective, in a single convenient volume. The central theme of the book is tailoring the interface properties to optimise the mechanical peformance and structural integrity of composites with enhanced strength/stiffness and fracture toughness (or specific fracture resistance). It deals mainly with interfaces in advanced composites made from high performance fibers, such as glass, carbon, aramid, ultra high modulus polyethylene and some inorganic (e.g. B/W, A12O3, SiC) fibers, and matrix materials encompassing polymers, metals/alloys and ceramics. The book is intended to provide a comprehensive treatment of composite interfaces in such a way that it should be of interest to materials scientists, technologists and practising engineers, as well as graduate students and their supervisors in advanced composites. We hope that this book will also serve as a valuable source of reference to all those involved in the design and research of composite interfaces. The book contains eight chapters of discussions on microstructure-property relationships with underlying fundamental mechanics principles. In Chapter 1, an introduction is given to the nature and definition of interfaces in fiber reinforced composites. Chapter 2 is devoted to the mechanisms of adhesion which are specific to each fiber-matrix system, and the physio-chemical characterization of the interface with regard to the origin of adhesion. The experimental techniques that have been developed to assess the fiber-matrix interface bond quality on a microscopic scale are presented in Chapter 3, along with the techniques of measuring interlaminar/intralaminar strengths and fracture toughness using bulk composite laminates. The applicability and limitations associated with loading geometry and interpretation of test data are compared. Chapter 4 presents comprehensive theoretical analyses based on shear-lag models of the single fiber composite tests, with particular interest being placed on the interface debond process and the nature of the fiber-matrix interfacial bonding. Chapter 5 is devoted to reviewing current techniques of fiber surface treatments which have been devised to improve the bond strength and the fiber-matrix compatibility/stability during the manufacturing processes of composites. The micro-failure mechanisms and their associated theories of fracture toughness of composites are discussed in Chapter 6. The roles of the interface and its effects on the mechanical performance of fiber composites are addressed from several viewpoints. Recent research efforts to augment the transverse and interlaminar fracture toughness by means of controlled interfaces are presented in Chapters 7 and 8.
Download or read book Interface Modification of Carbon Fiber Composites by Electropolymerization written by James Jerome Jakubowski and published by . This book was released on 1976 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of an Electropolymerized Interlayer on the Mechanical Properties of Graphite Fiber epoxy Composites written by Jemei Chang and published by . This book was released on 1993 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
