Advancements in Materials, Vol. 4, Issue 1, Jun  2020, Pages 1-15; DOI: https://doi.org/10.31058/j.am.2020.41001 https://doi.org/10.31058/j.am.2020.41001

Effects of Coupling Agent on Flexural Properties of Coir-Plantain Hybrid Fiber Reinforced Polyester (CPFRP) Composites

, Vol. 4, Issue 1, Jun  2020, Pages 1-15.

DOI: https://doi.org/10.31058/j.am.2020.41001

Chukwunyelu Christian Ebele 1* , Enibe Samuel Ogbonna 2 , Nwosu Arinze Walter 1

1 National Engineering Design Development Institute, Nnewi, Nigeria

2 Mechanical Engineering Department, University of Nigeria, Nsukka, Nigeria

Received: 28 December 2019; Accepted: 3 April 2020; Published: 7 July 2020

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Abstract

This paper investigates the effects of coupling agent and volume fraction on the flexural properties of coir-plantain hybrid fibers reinforced polyester resin composite materials. The retting process required to mechanically extract the coir and plantain fibers from the foliage of locally available coconut husks, plantain empty fruit bunch and plantain pseudo stem fruit was carried out. The problem of poor adhesion between fiber and matrix associated with natural-fiber reinforced composites is being worked. Hence, in this study, specific percentage (5%) of aqueous solution of sodium hydroxide and different percentages (0.1, 0.25, and 0.5 % w/v) of coupling agent were administered for surface modification of the fibers. Coir/plantain empty fruit bunch (CEFB) hybrid fibers and coir/plantain pseudo stem (CPS) hybrid fibers were separately used as reinforcement for coir/plantain hybrid fibers reinforced polyester resin composites. The level of compactibility between hybrid fiber and matrix were determined using scanning electron microscopy (SEM); hence the flexural properties of coir/plantain hybrid fibers reinforced polyester composite materials at three different control factors of the hybrid fibers were investigated. Applying Taguchi robust design technique for the greater-the-better, the highest signal-to-noise ratio (S/N ratio) for the quality characteristics being investigated was obtained employing Minitab 17. At the optimum setting of control factors, the flexural strength of CEFB hybrid fiber reinforced polyester composite is 97,16 N/mm2 while that of CPS hybrid fiber reinforced polyester composite is 71.78 N/mm2.

Keywords

Flexural Property, Coupling Agent, Coir-Plantain Hybrid Fibers, Scanning Electron Microscopy, Taguchi

Copyright

© 2017 by the authors. Licensee International Technology and Science Press Limited. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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