Kenaf Fibers And Composites
DOWNLOAD
Download Kenaf Fibers And Composites PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Kenaf Fibers And Composites book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Kenaf Fibers And Composites
DOWNLOAD
Author : S. M. Sapuan
language : en
Publisher: CRC Press
Release Date : 2018-06-14
Kenaf Fibers And Composites written by S. M. Sapuan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-14 with Science categories.
Kenaf fiber is gaining attention as an alternative reinforcement for composite products due to low cost, reduced environmental impact, and attractive mechanical properties. Kenaf Fibers and Composites covers the breadth of these exciting materials, from raw material preparation to application in a variety of products. It discusses fiber characterization and properties, how to prepare kenaf-based composites, and design, manufacturing, and applications. It also covers hybrid fiber composites, kenaf fiber thermosetting composites, kenaf fiber thermoplastic composites, kenaf fibers in various lengths, and forms and arrangements such as particulates, continuous roving, and woven fabrics. Cellulose-based kenaf composites and kenaf fiber-filled biopolymer composites are presented.
Kenaf Fibers And Composites
DOWNLOAD
Author : S. M. Sapuan
language : en
Publisher: CRC Press
Release Date : 2018-06-14
Kenaf Fibers And Composites written by S. M. Sapuan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-14 with Science categories.
Kenaf fiber is gaining attention as an alternative reinforcement for composite products due to low cost, reduced environmental impact, and attractive mechanical properties. Kenaf Fibers and Composites covers the breadth of these exciting materials, from raw material preparation to application in a variety of products. It discusses fiber characterization and properties, how to prepare kenaf-based composites, and design, manufacturing, and applications. It also covers hybrid fiber composites, kenaf fiber thermosetting composites, kenaf fiber thermoplastic composites, kenaf fibers in various lengths, and forms and arrangements such as particulates, continuous roving, and woven fabrics. Cellulose-based kenaf composites and kenaf fiber-filled biopolymer composites are presented.
Kenaf Fibers And Composites
DOWNLOAD
Author : S. M. Sapuan
language : en
Publisher: CRC Press
Release Date : 2018
Kenaf Fibers And Composites written by S. M. Sapuan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Fibrous composites categories.
Kenaf fiber is gaining attention as an alternative reinforcement for composite products due to low cost, reduced environmental impact, and attractive mechanical properties. Kenaf Fibers and Composites covers the breadth of these exciting materials, from raw material preparation to application in a variety of products. It discusses fiber characterization and properties, how to prepare kenaf-based composites, and design, manufacturing, and applications. It also covers hybrid fiber composites, kenaf fiber thermosetting composites, kenaf fiber thermoplastic composites, kenaf fibers in various lengths, and forms and arrangements such as particulates, continuous roving, and woven fabrics. Cellulose-based kenaf composites and kenaf fiber-filled biopolymer composites are presented.
Effect Of Manufacturing Processes On The Loss Factor And Other Mechanical Properties Of Kenaf Fiber Reinforced Composites
DOWNLOAD
Author : Brian P. Spackman
language : en
Publisher:
Release Date : 2015
Effect Of Manufacturing Processes On The Loss Factor And Other Mechanical Properties Of Kenaf Fiber Reinforced Composites written by Brian P. Spackman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Kenaf fibers have mechanical properties making them a good candidate to replace glass fibers in composites. This research investigates kenaf fiber-reinforced composites, examining the effect of cure time, density, matrix hardener ratio, surface treatment, and fiber length on the mechanical properties of the composite material such as natural frequency, damping loss factor, and tensile modulus. These are essential characteristics for many manufacturing parts and products, but are not well known for natural fiber-reinforced composite materials since interest in utilizing natural fibers for composites is in the infancy phase and determining properties is difficult. Natural fibers display properties similar to glass fibers, and present a more environmentally friendly option for manufacturing composite materials. By studying published research on the topic and experimenting with different methods, a consistent procedure for manufacturing composites was developed and several samples were created for testing these parameters. These samples were subjected to a vibrational test using an impact hammer and accelerometer. Through the half-power bandwidth method and other relationships, mechanical properties were extracted from the test to study the effect of each manufacturing process. Samples were found to exhibit repeatable mechanical properties after approximately 150 hours following removal from the oven. Increasing the pressure applied during the cure cycle results in higher densities, which increases loss factors and tensile moduli, and lowers natural frequencies. The matrix hardener ratio also affects these properties in a similar way. High hardener ratios result in a more brittle material that dampens less but generally has a higher stiffness. Models predict that a chemical surface treatment should decrease the loss factor due to a better fiber-matrix bond, resulting in less sliding and friction. However, testing showed the opposite result with treated fibers exhibiting higher amounts of damping. Fiber length was also tested, though the results showed a less prominent effect.
Effective Properties Of Randomly Oriented Kenaf Short Fiber Reinforced Epoxy Composite
DOWNLOAD
Author : Dayakar Naik L.
language : en
Publisher:
Release Date : 2015
Effective Properties Of Randomly Oriented Kenaf Short Fiber Reinforced Epoxy Composite written by Dayakar Naik L. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Natural fibers have drawn attention of researchers as an environmentally-friendly alternative to synthetic fibers. Developing natural fiber reinforced bio-composites are a viable alternative to the problems of non-degrading and energy consuming synthetic composites. This study focuses on (i) the application of kenaf fiber as a potential reinforcement and, (ii) determining the tensile properties of the randomly oriented short kenaf fiber composite both experimentally and numerically. Kenaf fiber micro-structure and its Young's modulus with varying gage length (10, 15, 20, and 25.4 mm) were investigated. The variation in tensile strength of kenaf fibers was analyzed using the Weibull probability distribution function. It was observed that the Young's modulus of kenaf fiber increased with increase in gage length. Fabrication of randomly oriented short kenaf fiber using vacuum bagging techniques and hand-lay-up techniques were discussed and the tensile properties of the specimens were obtained experimentally. The tensile modulus of the composite sample at 22% fiber volume fraction was found to be 6.48 GPa and tensile strength varied from 20 to 38 MPa. Numerical models based on the micro mechanics concepts in conjunction with finite element methods were developed for predicting the composite properties. A two-step homogenization procedure was developed to evaluate the elastic constants at the cell wall level and the meso-scale level respectively. Von-Mises Fisher probability distribution function was applied to model the random orientation distribution of fibers and obtain equivalent modulus of composite. The predicted equivalent modulus through numerical homogenization was in good agreement with the experimental results.
Fabrication Characterization And Stamp Thermoforming Of Natural Fiber Polypropylene Composites Containing Kenaf Fibers
DOWNLOAD
Author : Stacey Anne Yankovich
language : en
Publisher:
Release Date : 2004
Fabrication Characterization And Stamp Thermoforming Of Natural Fiber Polypropylene Composites Containing Kenaf Fibers written by Stacey Anne Yankovich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Fiber-reinforced plastics categories.
Mechanical And Dynamic Properties Of Biocomposites
DOWNLOAD
Author : Senthilkumar Krishnasamy
language : en
Publisher: John Wiley & Sons
Release Date : 2021-06-21
Mechanical And Dynamic Properties Of Biocomposites written by Senthilkumar Krishnasamy and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-21 with Technology & Engineering categories.
Mechanical and Dynamic Properties of Biocomposites A comprehensive review of the properties of biocomposites and their applications Mechanical and Dynamic Properties of Biocomposites offers a comprehensive overview of the mechanical and dynamic properties of biocomposites and natural fiber-reinforced polymer composites. This essential resource helps with materials selection in the development of products in the fields of automotive and aerospace engineering as well as the construction of structures in civil engineering. With contributions from a panel of experts in the field, the book reviews the mechanical and damping properties of lingo-cellulosic fibers and their composites. The authors highlight the factors that contribute to the improved properties and their advancements in modern industrialization. Besides, the book is designed to (a) introduce the mechanical and damping properties of lingo-cellulosic fibers and their composites, (b) factors that contribute to improvement in properties such as hybridization, chemical treatment of natural fibers, additive or fillers, etc. and (c) the real-time applications with case studies and future prospects. Key features: Presents viable alternatives to conventional composites Examines the environmentally friendly and favorable mechanical properties of biocomposites Reviews the potential applications of biocomposites in the fields of automotive, mechanical and civil engineering Brings together in one comprehensive resource information found scattered across the professional literature Written for materials scientists, polymer chemists, chemists in industry, civil engineers, construction engineers, and engineering scientists in industry, Mechanical and Dynamic Properties of BIocomposites offers a compreshensive review of the properties and applications of biocomposites.
Moisture Absorption Capacity Of Kenaf Fiber Reinforced Unsaturated Polymer Composites And Its Effect On Their Mechanical Properties
DOWNLOAD
Author : Abdalla A. AB. Rashdi
language : en
Publisher:
Release Date : 2010
Moisture Absorption Capacity Of Kenaf Fiber Reinforced Unsaturated Polymer Composites And Its Effect On Their Mechanical Properties written by Abdalla A. AB. Rashdi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Conventional fiber reinforced composites are composed of carbon and glass fibers, which are incorporated into unsaturated polyester or epoxy resin. These composites show high mechanical and thermal properties, so they are widely used in various applications from aerospace to sports. However, these advantages, on the other hand, cause environmental problems in disposal by incineration. Thus, in order to overcome these problems, environmentally friendly composites such as kenaf are today keenly required by utilizing natural fibers as reinforcements combined with unsaturated polyester as matrices. There are numerous advantages of using Kenaf. Kenaf exhibits low density, non-abrasiveness during processing, high specific mechanical properties, and biodegradability. But natural composites are susceptible moisture when operating in changing environmental conditions. Moisture absorption can result in swelling of the fiber resulting in dimensional stability problems in the lignocellulosic fiber composite. This leads to changes in mechanical properties of the thermoset are known to occur as a result of water absorption. The absorption of moisture by the fibers is minimized in the composites due to encapsulation by the polymer and good fiber-matrix bonding. Most of the moisture studies that have been conducted have focused on water immersion. Fewer studies have examined the effects of relative humidity related to weathering conditions and soil buried. This study concentrate in evaluating the amount of moisture absorption of kenaf unsaturated polyester composites exposed to three different environmental conditions for a certain period of time, and to provide which condition that would be better for kenaf unsaturated polyester engineering applications. Thus moisture absorption due to soil buried, moisture absorption due to water immersion and moisture absorption due to natural weathering were studied, as well as the effect of fibers contents in moisture absorption rate was studied where 10%, 20%, and 30% fiber contents where used. Also the study discuss if the unsaturated polyester can reduce the amount of moisture pick up of the fibers and gives good adhesion to decrease the rate and amount of water absorbed in the interphase region of the composites. Therefore the study will explain the behavior of moisture up-take due to these three conditions and its effects in the mechanical properties of the kenaf unsaturated composites the properties of interest was tensile strength. KFRUPC samples tensile strength and modulus of kenaf fiber reinforced unsaturated polyester composite were carried out using the Instron 5569 Universal Electromechanical Testing System with 50 KN loading capacity. This work employed long kenaf fiber (modified by alkali surface treatment on the fiber with a 6% NaOH solution to improve the adhesion and make them more polar) as reinforcement of the composite. For the matrix resin, unsaturated polyester resin of type Reservol P9509 was used. In this study, kenaf fiber reinforced unsaturated polyester composite (KFRUPC) was made, and their mechanical performances were investigated. This combination of environmental conditions provides a broad overview for most any condition that would be typically seen in an infrastructure application ranging from underwater applications to natural weather environments. The availability of comparable data for the various humidity conditions also provides data that can be used to design test environments to simulate long-term exposure conditions. Finally we can conclude that high fiber content leads to increase in moisture absorption for all environmental conditions. Although with high fiber content slightly better tensile strength were obtained with all environmental conditions. This increase in tensile strength may be due to better mechanical interlocking between fiber and matrix due to the limited swelling of the fiber by low water absorption. Form another point of view the effect of moisture absorption in tensile strength was high in case of water immersion test compare to soil buried and natural weathering tests, where the tensile stress of the KFRUPC drop to 84 MPa, 122 MPa and 134 MPa respectively for the 30%wt fiber content. Natural weathering test case showed that the KFRUPC absorb less moisture and gives high tensile strength compare to soil buried and water immersion tests, which indicate that KFRUPC could be good candidate for outdoor applications.
Engineered Green Composites Using Kenaf And Bamboo Fibers With Modified Soy Protein Resin
DOWNLOAD
Author : Yuzo Yamamoto
language : en
Publisher:
Release Date : 2006
Engineered Green Composites Using Kenaf And Bamboo Fibers With Modified Soy Protein Resin written by Yuzo Yamamoto and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Kenaf Reinforced Polypropylene Composites
DOWNLOAD
Author : Rajeev Karnani
language : en
Publisher:
Release Date : 1996
Kenaf Reinforced Polypropylene Composites written by Rajeev Karnani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Fiber-reinforced plastics categories.