Download or read book Wetting Behavior and Curing Kinetics of Carbon Nanofibers Modified Epoxy Resins written by Yu Fu and published by . This book was released on 2010 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Silanization Effects of Carbon Black Nanoparticles on Curing Kinetics of Nanocomposites written by Seyed Alireza Razinobakht and published by . This book was released on 2014 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents the development of a nanocomposite using carbon black and Epoxy Resin 828 to improve the curing kinetics of nanocomposite. There is little to no data on curing kinetics of silanized carbon nanocomposite. In this study, carbon black was modified using silanization process to improve its dispersion in epoxy resin which resulted in a change of curing kinetics. Silanization is a surface modification technique to improve carbon black stability and decrease agglomeration of carbon black during the mixing process. Different methods such as stability in acetone, Fourier Transform Infrared Spectrometer (FTIR), and Scanning Electron Microscopic (SEM) were used to confirm the silanization process of carbon black. Differential Scanning Calorimetry (DSC) was used to test the curing kinetics of carbon black nanocomposite. In order to find the curing kinetics of nanocomposite using DSC, finding a baseline was essential. Epoxy resin 828 and 12%wt curing agent were mixed and samples were tested in DSC at different temperatures to find the baseline. After finding the baseline, nanocomposite was prepared using unmodified and modified (silanized) carbon black at 2%, 4% and 8% weight percentage of carbon black. Curing kinetics of modified and unmodified carbon black nanocomposite revealed that curing temperature of 110 degrees F for modified CB nanocomposite had a higher Degree of Cure (DOC) than unmodified. Curing kinetics for 220 degrees F for unmodified and modified did not show significant differences, since curing occurred faster at a higher temperature. However, curing time was shorter for modified CB than unmodified. Acceleration in curing kinetics could have a positive effect on processing of nanocomposites by decreasing cure time at a lower temperature. This study may open up some new opportunities for curing kinetics of various nanoparticle nanocomposites used in many nanocomposite manufacturing industries.

Download or read book Effects of Carbon Nanoparticles on Properties of Thermoset Polymer Systems written by Siva Subramanyam Movva and published by . This book was released on 2010 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Polymer nanocomposites are novel materials in which at least one of the dimensions of the reinforcing material is on the order of 100 nm or less. While thermoplastic nanocomposites have been studied very widely, there are fewer studies concerning the effect of nanoparticles on thermoset systems. Low temperature cure thermoset systems are very important for many important applications. In this study, the processing, mechanical and thermal properties and reaction kinetics of carbon nanofiber (CNF) and/or carbon nanotubes (CNT) reinforced low temperature vinyl ester and epoxy nanocompositess were studied. In the first part, the processing challenge of incorporating CNFs into conventional fiber reinforced composites made by Vacuum infusion resin transfer molding (VARTM) was addressed by a new technique. The CNFs are pre-bound on the long fiber mats, instead of mixing them in the polymer resin, thereby eliminating several processing drawbacks. The resulting hybrid nanocomposites showed significant improvements in tensile, flexural and thermal properties. The effect of CNFs on the mold filling in VARTM was also studied and shown to follow the Darcy's law. In the second part, the effect of CNFs on the low temperature cure kinetics of vinyl ester and epoxy resins is studied using a thermal analysis technique, namely Differential scanning calorimetry (DSC). The effect of CNFs on the free radical polymerization of vinyl esters was found to be very complex as the CNFs interact with the various curing ingredients in the formulation. Specifically, the interaction effects of CNFs and the inhibitor were studied and a reaction mechanism was proposed to explain the observed phenomenon. The effect of surface modification of the carbon nanoparticles on the cure kinetics of wind-blade epoxy was studied. The surface functionalization reduced the activation energy of the epoxy reaction and was found to have an acceleration effect on the cure kinetics of epoxy resin at room temperature. In the final part, the preparation, properties and characterization of a thin film of carbon nanoparticles, also called a "nanopaper" was studied. Specifically, a new layer-by-layer multiparticle nanopaper was prepared and this layer-by-layer approach improved the mechanical properties of the stand alone nanopaper. The cure kinetics of epoxy resin in the presence of unmodified CNF paper and polyethyleneimine modified CNF paper were studied and modeled using an autocatalytic model. The nanopaper was also used as a functional coating in conventional fiber reinforced epoxy composites and improved several properties such as abrasion resistance and electromagnetic shielding effectiveness.

Download or read book Modifications of Epoxy Resins for Improved Mechanical and Tribological Performances and Their Effects on Curing Kinetics written by and published by . This book was released on 2008 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Epoxy Composites written by Jyotishkumar Parameswaranpillai and published by John Wiley & Sons. This book was released on 2021-06-01 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover a one-stop resource for in-depth knowledge on epoxy composites from leading voices in the field Used in a wide variety of materials engineering applications, epoxy composites are highly relevant to the work of engineers and scientists in many fields. Recent developments have allowed for significant advancements in their preparation, processing and characterization that are highly relevant to the aerospace and automobile industry, among others. In Epoxy Composites: Fabrication, Characterization and Applications, a distinguished team of authors and editors deliver a comprehensive and straightforward summary of the most recent developments in the area of epoxy composites. The book emphasizes their preparation, characterization and applications, providing a complete understanding of the correlation of rheology, cure reaction, morphology, and thermo-mechanical properties with filler dispersion. Readers will learn about a variety of topics on the cutting-edge of epoxy composite fabrication and characterization, including smart epoxy composites, theoretical modeling, recycling and environmental issues, safety issues, and future prospects for these highly practical materials. Readers will also benefit from the inclusion of: A thorough introduction to epoxy composites, their synthesis and manufacturing, and micro- and nano-scale structure formation in epoxy and clay nanocomposites An exploration of long fiber reinforced epoxy composites and eco-friendly epoxy-based composites Practical discussions of the processing of epoxy composites based on carbon nanomaterials and the thermal stability and flame retardancy of epoxy composites An analysis of the spectroscopy and X-ray scattering studies of epoxy composites Perfect for materials scientists, polymer chemists, and mechanical engineers, Epoxy Composites: Fabrication, Characterization and Applications will also earn a place in the libraries of engineering scientists working in industry and process engineers seeking a comprehensive and exhaustive resource on epoxy composites.

Download or read book Advances in Nanocomposites written by Boreddy Reddy and published by IntechOpen. This book was released on 2011-04-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Nanocomposites - Synthesis, Characterization and Industrial Applications was conceived as a comprehensive reference volume on various aspects of functional nanocomposites for engineering technologies. The term functional nanocomposites signifies a wide area of polymer/material science and engineering, involving the design, synthesis and study of nanocomposites of increasing structural sophistication and complexity useful for a wide range of chemical, physicochemical and biological/biomedical processes. "Emerging technologies" are also broadly understood to include new technological developments, beginning at the forefront of conventional industrial practices and extending into anticipated and speculative industries of the future. The scope of the present book on nanocomposites and applications extends far beyond emerging technologies. This book presents 40 chapters organized in four parts systematically providing a wealth of new ideas in design, synthesis and study of sophisticated nanocomposite structures.

Download or read book Plasma Deposition Treatment and Etching of Polymers written by Riccardo d'Agostino and published by Elsevier. This book was released on 2012-12-02 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma Deposition, Treatment, and Etching of Polymers takes a broad look at the basic principles, the chemical processes, and the diagnostic procedures in the interaction of plasmas with polymer surfaces. This recent technology has yielded a large class of new materials offering many applications, including their use as coatings for chemical fibers and films. Additional applications include uses for the passivation of metals, the surface hardening of tools, increased biocompatibility of biomedical materials, chemical and physical sensors, and a variety of micro- and optoelectronic devices. - Appeals to a broad range of industries from microelectronics to space technology - Discusses a wide array of new uses for plasma polymers - Provides a tutorial introduction to the field - Surveys various classes of plasma polymers, their chemical and morphological properties, effects of plasma process parameters on the growth and structure of these synthetic materials, and techniques for characterization - Interests scientists, engineers, and students alike

Download or read book Handbook of Epoxy Blends written by Jyotishkumar Parameswaranpillai and published by Springer. This book was released on 2017-07-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference work compiles and summarizes the available information on epoxy blends. It covers all essential areas – the synthesis, processing, characterization and applications of epoxy blends – in a comprehensive manner. The handbook is highly application-oriented and thus serves as a valuable, authoritative reference guide for researchers, engineers, and technologists working on epoxy blends, but also for graduate and postgraduate students, polymer chemists, and faculties at universities and colleges.The handbook is divided into three parts and organized by the types of blends and components: Part I covers epoxy rubber blends, Part II focuses on epoxy thermoplastic blends, and Part III examines epoxy block-copolymer blends. Each part starts with an introduction, and the individual chapters provide readers with comprehensive information on the synthesis and processing, analysis and characterization, properties and applications of the different epoxy blends. All parts conclude with a critical evaluation of the applications, weighing their advantages and drawbacks. Leading international experts from corporate and academic research institutions and universities discuss the correlations of different epoxy blend properties with their macro-, micro- and nanostructures. This handbook thus offers a rich resource for newcomers to the field, and a major reference work for experienced researchers, the first of its kind available on the market. As epoxies find extremely broad applications, e.g. in oil & gas, in the chemical industry, building and construction industry, automotive, aviation and aerospace, boat building and marine applications, in adhesives and coatings, and many more, this handbook addresses researchers and practitioners from all these fields.

Download or read book Pultrusion for Engineers written by T. Starr and published by Elsevier. This book was released on 2000-07-25 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pultrusion for engineers is a comprehensive overview of the latest developments and applications for this growing and increasingly important area of the fibre reinforced plastics industry.Trevor Starr is well known as a specialist consultant with many year's experience in the FRP world. He has assembled an international panel of distinguished experts to provide the widest possible coverage of the state-of-the-art in novel pultrusion applications and development including many leading US researchers such as Brandt Goldworthy, regarded by many as the father of modern pultrusion.Because this book is one of very few to cover pultrusion, it is essential reading for industrial producers of pultruded profiles, chemical companies producing resins and composite materials specialists eager to reach the new markets in, for example, civil engineering that are rapidly being opened up to design solutions involving pultrusions.

Download or read book Epoxy Resins written by Clayton May and published by Routledge. This book was released on 2018-05-11 with total page 1268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring new techniques of physicochemical analysis and broader coverage of textile applications,the thoroughly rewritten and enlarged Second Edition provides hands-on assistance inthe use, formulation, synthesis, processing, and handling of epoxy resins.Epoxy Resins, Second Edition, Revised and Expanded documents available commercialproducts, including rarer species of epoxides ... shows how to achieve qualityassurance through analytical methods ... discusses toxicity, hazards, and safe handling ...looks closely at elastomer modification of resins as well as adhesives, coatings, electrical andelectronic applications, fiber-reinforced composites, and the use of epoxy resins in thestabilization of polymers, plasticizers, and textiles ... and assists in the more efficientselection and application of epoxy resins.Complete with nearly 300 pages of tables for quick references, plus over 300 diagrams andphotographs, and more than 4,400 bibliographic references, this volume will proveindispensable to polymer, physical, and organic chemists, rheologists, materials scientists andengineers, and chemical, plastics, aerospace, automotive, and electrical and electronicsengineers.

Download or read book Fire Properties of Polymer Composite Materials written by A. P. Mouritz and published by Springer Science & Business Media. This book was released on 2007-01-30 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first to deal with the important topic of the fire behaviour of fibre reinforced polymer composite materials. The book covers all of the key issues on the behaviour of composites in a fire. Also covered are fire protection materials for composites, fire properties of nanocomposites, fire safety regulations and standards, fire test methods, and health hazards from burning composites.

Download or read book Composite Materials written by Kamal K. Kar and published by Springer. This book was released on 2016-10-14 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite materials are used as substitutions of metals/traditional materials in aerospace, automotive, civil, mechanical and other industries. The present book collects the current knowledge and recent developments in the characterization and application of composite materials. To this purpose the volume describes the outstanding properties of this class of advanced material which recommend it for various industrial applications.

Download or read book Fundamentals Properties and Applications of Polymer Nanocomposites written by Joseph H. Koo and published by Cambridge University Press. This book was released on 2016-10-31 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Polymers in Microelectronics written by David S. Soane and published by Elsevier Publishing Company. This book was released on 1989 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Electrospun Nanofibers written by Mehdi Afshari and published by Woodhead Publishing. This book was released on 2016-09-13 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrospun Nanofibers covers advances in the electrospinning process including characterization, testing and modeling of electrospun nanofibers, and electrospinning for particular fiber types and applications. Electrospun Nanofibers offers systematic and comprehensive coverage for academic researchers, industry professionals, and postgraduate students working in the field of fiber science. Electrospinning is the most commercially successful process for the production of nanofibers and rising demand is driving research and development in this field. Rapid progress is being made both in terms of the electrospinning process and in the production of nanofibers with superior chemical and physical properties. Electrospinning is becoming more efficient and more specialized in order to produce particular fiber types such as bicomponent and composite fibers, patterned and 3D nanofibers, carbon nanofibers and nanotubes, and nanofibers derived from chitosan. - Provides systematic and comprehensive coverage of the manufacture, properties, and applications of nanofibers - Covers recent developments in nanofibers materials including electrospinning of bicomponent, chitosan, carbon, and conductive fibers - Brings together expertise from academia and industry to provide comprehensive, up-to-date information on nanofiber research and development - Offers systematic and comprehensive coverage for academic researchers, industry professionals, and postgraduate students working in the field of fiber science

Download or read book Ultrasonic Testing of Materials written by Josef Krautkrämer and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: The amendments of this third English edition with respect to the second one concern beside some printing errors the replacement of some pictures in part D by more modern ones and updating the list of stand ards to the state of the fourth German edition. J OSEF KRAUTKRÄMER Cologne, January 1983 Preface to the Second Edition This seeond English edition is based on the third German edition. In view of most recent teehnologieal advanees it has beeome neeessary in many instanees to supplement the seeond German edition and to revise some parts completely. In addition to piezo-eleetric methods, others are now also extensively diseussed in Chapter 8. As for the intensity method, ultrasonie holo graphy is treated in the new Seetion 9. 4. In Part B, for reasons of syste maties, the resonanee method has been ineluded under transit-time methods. It appeared neeessary to elaborate in greater detail the defini tion of the properties of pulse-echo testing equipment and their measure ments (10. 4). The more recent findings of pulse speetroscopy (5. 6) and sound-emission analysis (12) are mentioned only in passing because their significanee is still controversial. Apart from numerous additions, partieularly those coneerning automatie testing installations, Part C also eontains a new chapter whieh deals with tests on nu eIe ar reactors (28), as weIl as abrief diseussion of surfaee-hardness tests (32. 4). It beeame impossible to include a critieal analysis of the principal standards in Chapter 33.