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Characterization Of Epoxi Based Composite With Carbon Nanotubes
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Book Synopsis Characterization of Carbon Nanotube Based Composites under Consideration of Defects by : Moones Rahmandoust
Download or read book Characterization of Carbon Nanotube Based Composites under Consideration of Defects written by Moones Rahmandoust and published by Springer. This book was released on 2015-10-14 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the characterization methods involved with carbon nanotubes and carbon nanotube-based composites, with a more detailed look at computational mechanics approaches, namely the finite element method. Special emphasis is placed on studies that consider the extent to which imperfections in the structure of the nanomaterials affect their mechanical properties. These defects may include random distribution of fibers in the composite structure, as well as atom vacancies, perturbation and doping in the structure of individual carbon nanotubes.
Book Synopsis Epoxy Composites by : Jyotishkumar Parameswaranpillai
Download or read book Epoxy Composites written by Jyotishkumar Parameswaranpillai and published by John Wiley & Sons. This book was released on 2021-04-29 with total page 448 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.
Book Synopsis Carbon Nanotube-Polymer Composites by : Dimitrios Tasis
Download or read book Carbon Nanotube-Polymer Composites written by Dimitrios Tasis and published by Royal Society of Chemistry. This book was released on 2015-11-09 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemically-modified carbon nanotubes (CNTs) exhibit a wide range of physical and chemical properties which makes them an attractive starting material for the preparation of super-strong and highly-conductive fibres and films. Much information is available across the primary literature, making it difficult to obtain an overall picture of the state-of-the-art. This volume brings together some of the leading researchers in the field from across the globe to present the potential these materials have, not only in developing and characterising novel materials but also the devices which can be fabricated from them. Topics featured in the book include Raman characterisation, industrial polymer materials, actuators and sensors and polymer reinforcement, with chapters prepared by highly-cited authors from across the globe. A valuable handbook for any academic or industrial laboratory, this book will appeal to newcomers to the field and established researchers alike.
Book Synopsis Characterization of Epoxi Based Composite with Carbon Nanotubes by : Mariano Garrido Pacheco
Download or read book Characterization of Epoxi Based Composite with Carbon Nanotubes written by Mariano Garrido Pacheco and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation exposes the characterisation of a nanocomposite made of epoxy resin with carbon nanotubes. The project involves the production of the materials and the fabrication of the specimens to be tested thermally and mechanically. The aim of this work is to show the thermal and mechanical improvement achieved in the epoxy resin by the incorporation of a small amount of carbon nanotubes. The experiment will show special interest in the study of the thermal characteristics of the nanocomposite. There have been insufficient studies about thermal properties on carbon nanotube-epoxy materials with low percentage of carbon nanotube reinforcement. Therefore, the data gathered in this study will help to improve the knowledge of the thermal behaviour of this type of materials. The initial stage of the project is focused in the development of the methodology to be followed during the characterisation. This part will be also destined to carry out a research on nanocomposites, carbon nanotubes and epoxy resins. The methodology developed for the characterization was based on the guidelines given by the American Society for Testing and Materials (ASTM) Standards for composite materials. The second part of the project covers the fabrication of the specimens and its thermal and mechanical characterisation. The results obtained will be exposed using graphic aids and tables. Finally, the last part of the report will be destined to the analysis of the data collected during the tests, and the production of conclusions. The results obtained from the thermal characterisation, performed using DSC and thermo gravimetric analysis, showed modifications in the thermal properties of the epoxy resin. Light changes in the temperature of the glass transition and the activation energy were detected. The mechanical characterisation performed using tensile, flexion and impact test, showed an increment in tensile and flexural strength due to the addition of CNs in the epoxy resin. The great interest from the industry in developing new polymer materials with improved properties, enhance the relevance of the topic presented.
Book Synopsis Processing and Characterization of Carbon Nanotubes Reinforced Epoxy Resin Based Multi-scale Multi-functional Composites by : Piyush R. Thakre
Download or read book Processing and Characterization of Carbon Nanotubes Reinforced Epoxy Resin Based Multi-scale Multi-functional Composites written by Piyush R. Thakre and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research is focused on investigating the effect of carbon nanotubes on macroscale composite laminate properties, such as, interlaminar shear strength, interlaminar fracture toughness and electrical conductivity along with studying the micro and nano-scale interactions of carbon nanotubes with epoxy matrix via thermomechanical and electrical characterization of nanocomposites. First an introduction to the typical advanced composite laminates and multifunctional nanocomposites is provided followed by a literature review and a summary of recent status on the processing and the characterization work on nanocomposites and composite laminates. Experimental approach is presented for the development of processing techniques and appropriate characterization methods for carbon nanotubes reinforced epoxy resin based multi-functional nanocomposites and carbon fiber reinforced polymer composite laminates modified with carbon nanotubes. The proposed work section is divided into three sub-sections to describe the processing and the characterization of carbon nanotube reinforced epoxy matrix nanocomposites, woven-carbon fabric epoxy matrix composite laminates modified with selective placement of nanotubes and unidirectional carbon fiber epoxy matrix composite laminates modified with carbon nanotubes. Efforts are focused on comparing the effects of functionalized and unfunctionalized carbon nanotubes on the advanced composite laminates. Covalently functionalized carbon nanotubes are used for improved dispersion and fiber-matrix bonding characteristics and compared with unfunctionalized or pristine carbon nanotubes. The processing of woven carbon fabric reinforced epoxy matrix composite laminates is performed using a vacuum assisted resin transfer molding process with selective placement of carbon nanotubes using a spraying method. The uni-directional carbon fiber epoxy matrix pre-preg composites are processed using a hot press technique along with the spraying method for placement of nanotubes. These macroscale laminates are tested using short beam shear and double cantilever beam experiments for investigating the effect of nanotubes on the interlaminar shear stress and the interlaminar fracture toughness. Fractography is performed using optical microscopy and scanning electron microscopy to investigate the structure-property relationship. The micro and nano-scale interactions of carbon nanotubes and epoxy matrix are studied through the processing of unfunctionalized and functionalized single wall carbon nanotube reinforced epoxy matrix nanocomposites. The multifunctional nature of such nanocomposites is investigated through thermo-mechanical and electrical characterizations.
Book Synopsis MECHANICAL PROPERTIES AND CHARACTERIZATION OF EPOXY AND CARBON FIBER/EPOXY COMPOSITES MODIFIED WITH HIGHLY ENTANGLED AS-RECEIVED AND ACID TREATED CARBON NANOTUBES by :
Download or read book MECHANICAL PROPERTIES AND CHARACTERIZATION OF EPOXY AND CARBON FIBER/EPOXY COMPOSITES MODIFIED WITH HIGHLY ENTANGLED AS-RECEIVED AND ACID TREATED CARBON NANOTUBES written by and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Huntsman-Merrimack MIRALON® carbon nanotubes (CNT's) are a novel, highly entangled, commercially available, and scalable format of nanotubes. As-received and acid-treated CNT's were added to aerospace grade epoxy (CYCOM® 977-3) and the composites were characterized. The epoxy resin is expected to infiltrate the network of the CNT's and could improve mechanical properties. Epoxy composites were tested for flexural and viscoelastic properties and the as-received and acid treated CNT's were characterized using field-emission scanning and transmission electron microscopy, thermogravimetric analysis, and Raman and X-ray photoelectron spectroscopy. Composites containing 0.4 wt% as-received CNT's showed an increase in flexural strength, from 136.9 MPa for neat epoxy to 147.5 MPa. In addition, the flexural modulus increased from 3.88 GPa for the neat epoxy to 4.24 GPa and 4.49 GPa for the 2.0 wt% and 3.0 wt% as-received CNT/epoxy composites, respectively. FE-SEM micrographs indicated good dispersion of the CNT's in the epoxy composites containing as-received CNT's and CNT's treated for 6 hours in 10 M nitric acid at 120 °C. CNT's treated with 10 M nitric acid for 6 hours at 120 °C added oxygen containing functional groups (C-O, C=O, and O=C-O) and removed iron catalyst present on the as-received CNT's, but the flexural properties of to the as-received CNT/epoxy composites. As-received and highly entangled Huntsman-Merrimack MIRALON® CNT sock materials (HGR and/or X55 grades) were added to unidirectional Hexcel HexTow IM7 carbon fiber/Solvay CYCOM® 977-3 epoxy prepreg system and the hybrid composites were characterized for tensile, flexural, and short beam shear properties. The incorporation of 1 CNT sock layer interleaving all of the CF/epoxy prepreg layers in the layup did not improve either the 0° or 90° tensile or flexural properties of the composite. Additionally, there was no improvement in the interlaminar shear strength of the hybrid composites, when 1, 2, or 3 CNT sock layers (HGR and X55 grades) were added between each CF/epoxy prepreg layer
Book Synopsis Epoxy-Based Composites by : Samson Jerold Samuel Chelladurai
Download or read book Epoxy-Based Composites written by Samson Jerold Samuel Chelladurai and published by BoD – Books on Demand. This book was released on 2022-05-25 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epoxy-based composites are used in automotive and aerospace applications because of their high strength-to-weight ratio, high stiffness-to-weight ratio, and good resistance to wear and corrosion. This book presents research on epoxy-based composites and their applications. It explains methods of preparing and testing these composites, including the hand lay-up technique, compression molding, and others. This book is useful for industrialists, undergraduate and postgraduate students, research scholars, and scientists.
Book Synopsis High Performance Composite Materials: Characterization of Carbon Fiber Reinforced Epoxy Matrix Composites with Carbon Nanotubes as Reinforcement Agent Within the Matrix by : Ricardo Andrés Ochoa de la Rosa
Download or read book High Performance Composite Materials: Characterization of Carbon Fiber Reinforced Epoxy Matrix Composites with Carbon Nanotubes as Reinforcement Agent Within the Matrix written by Ricardo Andrés Ochoa de la Rosa and published by . This book was released on 2011 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project is about mechanical characterization of high performance, structural composite materials. Within the context of this project, a commercial, now available epoxy resin reinforced with carbon nanotubes (CNT’s) was compared with a high performance commercially available epoxy resin, also using unidirectional carbon fiber as reinforcement agent. CNT’s are a relatively new, interesting topic to study within the materials science, and because of the potential shown in previous studies, are of utter importance for critical structural applications, such as those found in the aerospace industry. During this project previous references were studied and used as comparison material to design the methodological framework followed in this work. To observe CNT’s benefits, samples tailored to American Society for Testing and Materials (ASTM) standards were manufactured and tested in order to quantify the mechanical properties discussed in this. ASTM standards provide both the sample dimension requirements and the testing procedure to be followed in order to obtain reliable, organized, meaningful data from proposed tests. Tensile, shear and flexural strain-strength tests were performed in samples using both kinds of resins. Data collected from tests was organized, plotted and analyzed to understand mechanical behavior of the samples during the tests. Main engineering values such as ultimate tensile strength, engineering stress, young’s modulus, shear strength and so were gathered and documented in this project. CNT’s reinforced epoxy samples outperformed the common epoxy samples in general, showing a better behavior as seen in the deformation energy absorbed in the samples in each test. It is encouraged to keep the research on the CNT’s topic as a promising and relevant technology called to grow in use and performance in the future, as well as to expand and improve the difficulties and limitations found in this project. This project shows that even when using a low CNT’s content as reinforcement agent within the matrix, evaluated mechanical properties are effectively enhanced, making the CNT’s a good candidate for future composite material components where weight saving and better structural mechanical performance is needed.
Book Synopsis Rheology of Filled Polymer Systems by : A.V. Shenoy
Download or read book Rheology of Filled Polymer Systems written by A.V. Shenoy and published by Springer Science & Business Media. This book was released on 1999-01-31 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rheology of filled polymer systems is an ever expanding field in the polymer industry today. Using a concise, practical and simple format this comprehensive work explains the concepts behind filled polymer systems and the rheological techniques involved in studying their behaviour. Aware that the readers of the book may come from differing background, the first three chapters familiarize the reader with the basics about polymers, fillers and physicochemical interactions between them, rheology and rheometry. Covering such topics as preparation of filled polymer systems, steady shear viscous properties and extentional flow properties, this book covers the areas of importance from an introductory level through to more complex issues.
Book Synopsis Epoxy Composites by : Debdatta Ratna
Download or read book Epoxy Composites written by Debdatta Ratna and published by iSmithers Rapra Publishing. This book was released on 2007-08 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fabrication and Characterization of Epoxy and Carbon/epoxy Composites Modified with Functionalized Carbon Nanotubes by : Mahmud Bin Abdus Salam
Download or read book Fabrication and Characterization of Epoxy and Carbon/epoxy Composites Modified with Functionalized Carbon Nanotubes written by Mahmud Bin Abdus Salam and published by . This book was released on 2012 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Epoxy/Fiber Composites by : Sanjay Mavinkere Rangappa
Download or read book Handbook of Epoxy/Fiber Composites written by Sanjay Mavinkere Rangappa and published by Springer Nature. This book was released on 2022-08-01 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook presents the current state-of-knowledge in the area of epoxy fiber composites. The book emphasizes new challenges and covers synthesis, characterization, and applications of epoxy/fiber composites. Leading researchers from industry, academy, government and private research institutions across the globe have contributed to this book. The contents comprehensively cover the current status, trends, future directions, and application opportunities in the field. This highly application-oriented handbook will be of use to researchers and professionals alike.
Book Synopsis Fabrication and Characterization of Carbon Nanotube Reinforced Epoxy Composites and Their Applications in Cfrp-steel Double Strap Joints as Structural Adhesives by : Asghar Habibnejad Korayem
Download or read book Fabrication and Characterization of Carbon Nanotube Reinforced Epoxy Composites and Their Applications in Cfrp-steel Double Strap Joints as Structural Adhesives written by Asghar Habibnejad Korayem and published by . This book was released on 2013 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The impressive mechanical properties of carbon fibre reinforced polymer (CFRP) have stimulated research interest in the application of CFRP for the retrofitting and strengthening of ageing infrastructures. However, some obstacles such as debonding and the low shear strength of the bond, particularly at temperature about the glass transition temperature (Tg) of bond adhesive, limit the use of CFRP with steel structures. Nanofillers such as carbon nanotubes (CNTs) have the potential to improve the mechanical and thermo-mechanical properties of epoxy resin systems for this purpose.The objectives of the present work were thus threefold: (1) to understand the mechanical properties of CNTs via buckling analysis using molecular dynamics simulations, (2) to fabricate and characterize CNT reinforced epoxy composites to improve their mechanical and thermo-mechanical properties, and investigating the effect of ultrasonication energy, CNT geometry, dispersant type, and type of epoxy on the final properties, and (3) to apply CNT reinforced epoxy resins as structural adhesives in CFRP strengthened steel structures subjected to moderately elevated temperatures.The results show that the compression load capacity of short multi-walled CNTs (MWCNTs) was greater than that of long MWCNTs. It was observed that the variation of the buckling strain of short MWCNTs was inversely proportional to the number of nanotube walls. For slender MWCNTs, the buckling strains fluctuated as the number of walls increased. The strain increased for beam-like buckling mode, decreased for shell-like buckling mode and was approximately constant for shell-beam-like buckling mode. Increase in the length of MWCNT also led to a significant decrease of the buckling strain for short MWCNTs. However, chirality had no significant effect on the buckling strain of MWCNTs, nor did it alter the buckling mode of short MWCNTs.To obtain effective dispersion of CNTs in an epoxy matrix, high shear mixing, ultrasonication treatments and surfactants were found to be essential. It was shown that it is important to use a set of compatible key parameters such as sufficient sonication energy, a strong dispersant, together with the appropriate CNTs. The results show that using ductile epoxy with 3 wt.% CNT masterbatch could enhance Young's modulus by 20%, tensile strength by 30%, flexural strength by 15%, and Tg by 34% of neat epoxy. The degree of CNT dispersion is not only a matter of the copolymer surfactant concentration; the copolymer adsorption morphology on the surface of CNTs also plays a role. Three adsorption morphologies, i.e. random, hemi-micelle, and cylindrical morphology, of BYK 9076 copolymer on the CNT surface were observed at different copolymer/CNT ratios. It was found that hemi-micelle morphology could prevent the agglomeration of CNTs when CNT concentration increased up to 8.7 mg/ml, whereas a cylindrical morphology was more efficient and stable in providing dispersion of a higher concentration of CNTs.It was found that the failure mode in both double strap joints with neat epoxy and/or CNT-epoxy was a combination of steel-adhesive interface failure, cohesive failure, epoxy-CFRP interface failure and CFRP delamination. Joints bonded with CNT-epoxy adhesive possessed an effective bond length of about 60 mm, whereas the effective bond length of joints bonded with neat epoxy was about 70 mm. Increasing the test temperature caused a transition of failure mode from the epoxy-CFRP interface to the steel-epoxy interface and to the cohesive layer in joints with neat epoxy. The cohesive failure could be avoided in the joints with CNT-epoxy. Observations from scanning electron microscopy revealed that CNTs bridge the cracks in epoxy matrix, providing a reinforcing effect. Overall, CNT-epoxy resin systems can provide a significant increase (about two-fold) in bond strength at moderately elevated temperatures compared with neat epoxy.
Book Synopsis Manufacturing of Nanocomposites with Engineering Plastics by : Vikas Mittal
Download or read book Manufacturing of Nanocomposites with Engineering Plastics written by Vikas Mittal and published by Woodhead Publishing. This book was released on 2015-06-25 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manufacturing of Nanocomposites with Engineering Plastics collates recent research findings on the manufacturing, properties, and applications of nanocomposites with engineering plastics in one comprehensive volume. The book specifically examines topics of engineering plastics, rheology, thermo-mechanical properties, wear, flame retardancy, modeling, filler surface modification, and more. It represents a ready reference for managers and scholars working in the areas of polymer and nanocomposite materials science, both in industry and academia, and provides introductory information for people new to the field. Provides a comprehensive review of the most recent research findings A single one-stop ready reference that assimilates knowledge on the development of nanocomposites with engineering plastics Contributions from leading experts in the field Provides examples of applications that will help with material selection Chapters are designed to provide not only introductory information, but also to lead the reader to more advanced characterization tools
Book Synopsis Characterization of Carbon Nanotubes and Carbon Nanotube-epoxy Composites by : Paul Matthew Saville
Download or read book Characterization of Carbon Nanotubes and Carbon Nanotube-epoxy Composites written by Paul Matthew Saville and published by . This book was released on 2015 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mechanical and electrical properties of carbon nanotube composites are attractive for a number of applications. The final properties depend on the quality of the feed stock, the amount of material used, and methods for de-aggregating and dispersing the nanotubes. Here, Fourier transform infrared spectroscopy, RAMAN spectroscopy, scanning electron microscopy, thermogravimetric analysis, and permittivity measurements are used to discern between three commercially available multi-walled carbon nanotubes (Nanocyl 7000, Cheap Tubes, and a sample of acid functionalized multi-walled nanotubes), and their epoxy composites. The RAMAN and thermogravimetric analysis data indicated that the Nanocyl had the most defects and impurities, however, the permittivity measurements and scanning electron microscopy data indicated that the Nanocyl nanotubes were well distributed in the matrix. The most important factors for dispersion and high permittivity appear to be the ability to de-aggregate the nanotubes, which is enabled by the short length, and a small diameter. The small diameter results in an overall longer length of carbon nanotube in the composite compared to an equal mass of larger diameter nanotubes.
Book Synopsis Fiber-Reinforced Composite Materials by : V. Tuninetti
Download or read book Fiber-Reinforced Composite Materials written by V. Tuninetti and published by Springer Nature. This book was released on 2023-05-20 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the current progress in fiber-reinforced plastics (FRP), covering manufacturing, mechanical behavior, and resistance performance. It includes the elastic and damage behavior of unidirectional FRP, and highlights the improvements achieved by adding multiwall carbon nanotubes. The material resistance is assessed through fatigue response, local behavior, local properties, and failure mechanisms, including crack density and microcrack propagation behavior. The book also explores the degradation of macroscopic mechanical properties such as elastic modulus and compressive strength versus plastic strains. Additionally, it focuses on the progress made in out-of-plane composite characterization and modeling response for simulations of critical mechanical parts currently used in different industries, thanks to advances in manufacturing techniques that allow for the production of increasingly complex and thicker geometries.
Book Synopsis Synthesis and Characterization of Strain Sensitive Multi-walled Carbon Nanotubes/epoxy Based Nanocomposites by : Abdulkadir Sanli
Download or read book Synthesis and Characterization of Strain Sensitive Multi-walled Carbon Nanotubes/epoxy Based Nanocomposites written by Abdulkadir Sanli and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
