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Licensed Unlicensed Requires Authentication Published by De Gruyter June 19, 2017

Effects of abaca fiber reinforcement on the dynamic mechanical behavior of vinyl ester composites

Auswirkung der Abaka-Faserverstärkung auf das dynamische mechanische Verhalten von Vinylester-Kompositen
Anandraj Mohan Kumar, Rathinasamy Parameshwaran, Palaniappan Sathish Kumar, Samir Kumar Pal, Mani Mohan Prasath, Vijayan Krishnaraj and Rathanasamy Rajasekar
From the journal Materials Testing

Abstract

The present study aims in analyzing the mechanical behavior of natural fiber (abaca) reinforced polymeric composites under dynamic conditions. It is evident from the past research reports that natural fiber offers desirable physico-mechanical properties to the added polymers. In the present research work, abaca fiber is utilized for the preparation of composites due to its promising mechanical properties and resistance to salt water corrosion, its lignin content is 15% and grows up to 3 m. Abaca is extracted from leaf sheath of Manila hemp plant, it is a kind of banana family. Influence of temperature on the mechanical behavior of natural fibers needs to be identified to ensure its usage for high performance applications. Pure and chemically treated abaca fiber based vinyl ester composites are subjected to dynamic mechanical analysis (DMA). The reason for the chemical treatment of abaca fiber is to enhance its interfacial bonding with base matrix. Fourier transform infrared spectroscopy (FT-IR) analysis signifies the morphological changes in abaca fiber after chemical treatment. Storage modulus (E') and damping characteristics of abaca fiber reinforced vinyl ester composites are comparatively higher than in neat polymer. In addition, surface treatment of fiber demonstrates significant enhancement in storage modulus compound compared to pure and raw fiber reinforced polymer due to strong physical interaction between fiber and matrix.

Kurzfassung

Die diesem Beitrag zugrunde liegende Studie zielt darauf ab, das mechanische Verhalten von naturfaserverstärkten (Abaka) Polymerkompositen unter dynamischen Bedingungen zu analysieren. Es ist aus vergangenen Forschungsberichten bewiesen, dass Naturfasern die erforderlichen physikalisch-mechanischen Eigenschaften für die hinzugegebenen Polymere bereitstellen. In der vorliegenden Forschungsarbeit wurden Abaka-Fasern verwendet, um Komposite herzustellen, da diese vielversprechende mechanische Eigenschaften und Resistenz gegenüber Salzwasserkorrosion aufzeigen, wobei der Ligningehalt 15% betrug und bis zu 3 m anwuchs. Abaka wird von dem Blattschuh der Manila-Hanfpflanze extrahiert, die eine Art der Bananenfamilie darstellt. Es ist notwendig, den Einfluss der Temperatur auf das mechanische Verhalten der Naturfasern zu identifizieren, um ihre Nutzung für High-Perfomance-Anwendungen sicher zu stellen. Es wurden reine und auf chemisch behandelte Abaka-Faser basierende Vinylester-Komposite dynamischen mechanischen Analysen (Dynamic Mechanical Analysis – DMA) unterworfen. Der Grund der chemischen Behandlung der Abaka-Faser ist es, ihre Grenzflächenbindung mit der Basismatrix zu steigern. Die Analyse mittels Fourier-Transformations-Infrarotspektroskopie (FT-IR) zeigt die morphologischen Veränderungen in der Abaka-Faser nach der chemischen Behandlung. Der Speichermodul (E') und die Dämpfungscharakteristika der abakafaserverstärkten Vinylester-Komposite sind vergleichsweise höher als des ursprünglichen Polymers. Zusätzlich zeigt die Oberflächenbehandlung der Faser eine signifikante Steigerung des Speichermodules im Vergleich zum reinen und rohfaserverstärkten Polymer aufgrund der starken physikalischen Wechselwirkung zwischen Faser und Matrix.


*Correspondence Address, Dr. Rathanasamy Rajasekar, Faculty of Mechanical Engineering, Kongu Engineering College, Perundurai, 638052, Tamil Nadu, India, E-mail:

Anandraj Mohan Kumar, born in 1984, completed his B.E in Mechanical Engineering at the Erode Sengunthar Engineering College, Tamil Nadu, India, in 2006. He obtained his M.E degree in Computer Aided Design at the Government College of Engineering, Salem, Tamil Nadu, India in 2010. He is currently working as Assistant Professor in the Department of Mechanical Engineering at Kongu Engineering College, Tamil Nadu, India.

Dr. Rathinasamy Parameshwaran, born in 1976, obtained his PhD degree at Kongu Engineering College, Perundurai, in Performance Management in 2009. He gained his Master's degree in Industrial Engineering at Regional Engineering College, Trichy, Tamil Nadu, India. He is working as Head and Professor in the Department of Mechatronics Engineering at Kongu Engineering College, India.

Palaniappan Sathish Kumar, born in 1991, finished his Bachelor's degree in Engineering (mechanical stream) at University College of Engineering Villupuram (A Constituent College of Anna University, Chennai), Tamil Nadu, India in 2012. He received his Master of Engineering from Kongu Engineering College, Tamil Nadu, India, which he finished in 2014 with distinction in the stream of CAD/CAM.

Prof. Samir Kumar Pal completed his B. Tech, M. Tech and his PhD in the Department of Mining Engineering, Indian Institute of Technology, Kharagpur, West Bengal. Since 1981, he has been working as a member of the faculty in the Department of Mining Engineering, Indian Institute of Technology in Kharagpur.

Dr. Vijayan Krishnaraj, obtained his BEng, MEng and PhD in the field of drilling of composites in 1994, 1999 and 2007, respectively. He also completed his postdoc in France in 2008 and 2009. Currently, he is working as Associate Professor in the Department of Production Engineering, PSG College of Technology, Tamil Nadu, India.

Mani Mohan Prasath, born in 1991, finished his Bachelor's degree in Engineering (mechanical stream) at KSR College of Engineering, Tiruchengode, Tamil Nadu, India in 2013. He received his Master of Engineering at Kongu Engineering College, Tamil Nadu, India which he finished in 2015 with distinction in the stream of engineering design. Currently, he is pursuing PhD in Universiti Teknologi Malaysia.

Dr. Rathanasamy Rajasekar, born in 1982, obtained his MS and PhD degrees at Indian Institute of Technology, Kharagpur, in Materials Science in 2008 and 2011, respectively. He gained postdoctoral research experience in the Department of Polymer & Nano Engineering at Chonbuk National University, South Korea in 2011 and 2012. Since 2012, he has been working as Associate Professor in the Department of Mechanical Engineering at Kongu Engineering College, India.


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Published Online: 2017-06-19
Published in Print: 2017-06-01

© 2017, Carl Hanser Verlag, München