FLAX AND HEMP FIBER COMPOSITES, A MARKET REALITY. PDF Download
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Author:
Publisher:
ISBN: 9782490263004
Category :
Languages : en
Pages :
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Author:
Publisher:
ISBN: 9782490263004
Category :
Languages : en
Pages :
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Author: Maurice Reyne
Publisher:
ISBN: 9782952627627
Category :
Languages : en
Pages : 218
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Author: Md Shadhin
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Composite parts, used in transportation industries, are manufactured using VARTM (Vacuum Assisted Resin Transfer Molding) and glass fiber non-woven mats that are optimized for impregnation, fiber volume fraction (Vf), and composite properties. However, such optimized non-woven mats are commercially not available for natural fibers such as hemp and flax. Fahimian (2013) has developed the knowledge on the effect of areal density (weight per unit area), needle punching used to bind the fibers together, and the pressure applied during manufacturing, on composite properties. Similar studies on flax fibers is not available. Such studies on Cattail fibers, with comparable properties and abundance, are lacking. Hence, the goal of this thesis to generate this knowledge and do a comparative evaluation of flax, cattail, and hemp fibers and their composites. The mat permeability as well as tensile strength and modulus of needle-punched (0-72P) flax composites, manufactured using VARTM pressure as well as compression molding pressures (subsequent to VARTM molding), were measured and evaluated. Similar studies were repeated on 50% Flax-50% hemp fiber mat. Cattail fibers were extracted from cattail leaf using alkali retting, characterized for properties, and used to manufacture 0-P mat. This was subsequently used to test for permeability as well as manufacture composites for mechanical testing. The results from these studies as well as that for hemp fiber (generated by Fahimian (2013)) were used in comparative evaluation of the three fibers as reinforcement in composites. It was found that the Vf of flax mats changes with punch density that affects the permeability. Vf in flax mat composite dictates the modulus and strength which is a function of consolidation behavior that varies with punch density and pressure. Despite having similar tensile strength in all three fibers, cattail fibers possess higher specific strength than flax and hemp due to lower density values of cattail fiber; however, modulus and specific modulus increases as follows (Eflax
Author: Minnesota. Legislature. House. Committee of Investigation on the Production of Flax and Hemp
Publisher:
ISBN:
Category : Flax
Languages : en
Pages : 86
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Author: Raul Fangueiro
Publisher: Springer
ISBN: 3319646419
Category : Technology & Engineering
Languages : en
Pages : 276
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Book Description
This book presents selected high-quality research papers submitted to ICNF 2017, the 3rd International Conference on Natural Fibers, which was held in Braga, Portugal, on 21–23 June 2017. It discusses the latest research and developments in the field and covers a wide range of topics related to various aspects of natural-fiber composites, such as production and processing of raw materials, surface modification and functionalization, advanced fibrous structures for composites, nano fibers, experimental characterization, modeling and analysis, design and product development, applications, market potential, and environmental impacts. The book presents the latest research work addressing different approaches and techniques to improve processing, performance, functionalities and cost-effectiveness of natural-fibers composites, in order to increase their applications in different industrial sectors such as automobiles, transportation, construction, and sport. & nbsp;
Author: United States Tariff Commission
Publisher:
ISBN:
Category : Commercial treaties
Languages : en
Pages : 28
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Book Description
Author: Brittain Bragunier Robinson
Publisher:
ISBN:
Category : Flax
Languages : en
Pages : 128
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Book Description
Author: A. C. Whitford
Publisher:
ISBN:
Category : Fiber plants
Languages : en
Pages : 4
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Book Description
Author: A. Brent Strong
Publisher: Society of Manufacturing Engineers
ISBN: 0872638545
Category : Technology & Engineering
Languages : en
Pages : 642
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Book Description
Describes advances, key information, case studies, and examples that can broaden your knowledge of composites materials and manufacturing methods. This text deals with composites manufacturing methods, providing tips for getting the best results that weigh the required material properties against cost and production efficiency. An Instructor's Guide is also available.
Author: Kristiina Oksman
Publisher: World Scientific
ISBN: 9814566470
Category : Science
Languages : en
Pages : 1124
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Book Description
Green materials and green nanotechnology have gained widespread interest over the last 15 years; first in academia, then in related industries in the last few years.The Handbook of Green Materials serves as reference literature for undergraduates and graduates studying materials science and engineering, composite materials, chemical engineering, bioengineering and materials physics; and for researchers, professional engineers and consultants from polymer or forest industries who encounter biobased nanomaterials, bionanocomposites, self- and direct-assembled nanostructures and green composite materials in their lines of work.This four-volume set contains material ranging from basic, background information on the fields discussed, to reports on the latest research and industrial activities, and finally the works by contributing authors who are prominent experts of the subjects they address in this set.The four volumes comprise of:The first volume explains the structure of cellulose; different sources of raw material; the isolation/separation processes of nanomaterials from different material sources; and properties and characteristics of cellulose nanofibers and nanocrystals (starch nanomaterials). Information on the different characterization methods and the most important properties of biobased nanomaterials are also covered. The industrial point of view regarding both the processability and access of these nanomaterials, as well as large scale manufacturing and their industrial application is discussed — particularly in relation to the case of the paper industry.The second volume expounds on different bionanocomposites based on cellulose nanofibers or nanocrystals and their preparation/manufacturing processes. It also provides information on different characterization methods and the most important properties of bionanocomposites, as well as techniques of modeling the mechanical properties of nanocomposites. This volume presents the industrial point of view regarding large scale manufacturing and their applications from the perspective of their medical uses in printed electronics and in adhesives.The third volume deals with the ability of bionanomaterials to self-assemble in either liquids or forming organized solid materials. The chemistry of cellulose nanomaterials and chemical modifications as well as different assembling techniques and used characterization methods, and the most important properties which can be achieved by self-assembly, are described. The chapters, for example, discuss subjects such as ultra-light biobased aerogels based on cellulose and chitin, thin films suitable as barrier layers, self-sensing nanomaterials, and membranes for water purification.The fourth volume reviews green composite materials — including green raw materials — such as biobased carbon fibers, regenerated cellulose fibers and thermoplastic and thermoset polymers (e.g. PLA, bio-based polyolefines, polysaccharide polymers, natural rubber, bio-based polyurethane, lignin polymer, and furfurylalchohol). The most important composite processing technologies are described, including: prepregs of green composites, compounding, liquid composite molding, foaming, and compression molding. Industrial applications, especially for green transportation and the electronics industry, are also described.This four-volume set is a must-have for anyone keen to acquire knowledge on novel bionanomaterials — including structure-property correlations, isolation and purification processes of nanofibers and nanocrystals, their important characteristics, processing technologies, industrial up-scaling and suitable industry applications. The handbook is a useful reference not only for teaching activities but also for researchers who are working in this field.
