Silk fibers and their unidirectional polymer composites

Ahmed, Mansur and Islam, Md Saiful and Ahsan, Qumrul and Islam, Md Mainul (2012) Silk fibers and their unidirectional polymer composites. In: Natural polymers, biopolymers, biomaterials, and their composites, blends, and IPNs. Advances in Materials Science (2). Apple Academic Press (CRC Press), Oakville, ON. Canada , pp. 79-90. ISBN 978-1-926895-16-1

Abstract

Natural fiber reinforced polymer composites have gained their popularity in the composite research because of versatility and diversified nature of their applications (Gay et al., 2003). This is due to a range of potential advantages of natural fibers, especially with regard to their environmental performance. Natural fibers are renewable resources and even when their composite wastes are incinerated, they do not cause net emission of carbon dioxide to the environment. They are inherently biodegradable, which may be beneficial (Aquino et al., 2007; Singleton et al., 2003; Verpoest et al., 2010). Among all the natural reinforcing fibrous materials, silk appears to be a promising fiber due to its high toughness and aspect ratio in comparison with other natural reinforcements. Moreover, the mechanical properties of silk fibers consist of a combination of high strength, extensibility, and compressibility. On the other hand, maleic anhydride grafted polypropylene (MAPP) and commercial grade polypropylene (PP) are commonly used matrices for fiber-reinforced composites due to their good interfacial bonding properties (Karmarkar et al., 2007; Wambua et al., 2003).
In this chapter, both raw and alkali treated silk fibers are taken into consideration to characterize their properties first. The specific objective is to determine the modulus and strain to failure of the single silk fiber. Other aims of this work are to fabricate the unidirectional silk fiber reinforced polymer (MAPP and commercial grade PP) matrix composites by varying fiber volume fraction and to determine their mechanical properties such as tensile strength, flexure strength, impact strength, and hardness.


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Item Type: Book Chapter (Commonwealth Reporting Category B)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2012 by Apple Academic Press, Inc. Published version deposited in accordance with the copyright policy of the publisher. Except as permitted under Copyright Law, no part of this book may be reprinted, reproduced, transmitted, or utilized in any form by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying, microfilming, and recording, or in any information storage or retrieval system, without written permission from the publishers.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 19 Jun 2013 07:09
Last Modified: 20 Apr 2017 03:31
Uncontrolled Keywords: longitudinal strength; natural fibres; polypropylene; scanning electron microscope; siricin; thermo-gravimetric analysis; ultimate tensile strength
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0910 Manufacturing Engineering > 091012 Textile Technology
03 Chemical Sciences > 0305 Organic Chemistry > 030502 Natural Products Chemistry
Socio-Economic Objective: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870303 Polymeric Materials (e.g. Paints)
Identification Number or DOI: 10.1201/b13117-1
URI: http://eprints.usq.edu.au/id/eprint/21464

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