EXPERIMENTAL INVESTIGATIONS OF CARBON FIBER HYBRIDIZATION ON MECHANICAL STRENGTH PROPERTIES OF RAMIE FIBER REINFORCED EPOXY COMPOSITE

Authors

  • George O. Okoronkwo Department of Chemical Engineering, Micheal Okpara University of Agriculture, Umudike, Abia State, Nigeria
  • Ibe Kizito Chidozie Department of Civil Engineering, Micheal Okpara University of Agriculture, Umudike, Abia State, Nigeria
  • Obimba-Wogu Jesuborn Department of Civil Engineering, Micheal Okpara University of Agriculture, Umudike, Abia State, Nigeria

Keywords:

Natural fiber; synthetic fiber; epoxy resin; hybrid composite materials; mechanical strength properties; SEM; FT-IR.

Abstract

In this study, an attempt is made to check whether a hybrid composite made up of both synthetic and natural fibers (Carbon and ramie respectively) can be made bio-degradable, at least to some extent, without much compromising on the mechanical strength properties. Hybridized composites were produced by reinforcing alkali treated ramie and carbon fibers into epoxy resin using hand lay-up and compression methods. By varying the number of layers of fibers in the composite samples and fixing 20 % fiber weight for all composites, nine distinct combinations of samples were prepared. The optimum tensile strength of 385.68 MPa, flexural strength of 646.08 MPa, and impact energy of 4.8 J were obtained for composites produced with pure carbon fiber, whereas hybrid composite exhibit tensile strength of 366.76 MPa, flexural strength of 645.41MPa and impact energy of 4.7 J. The interfacial bonding between the fibers and matrix of tested samples were studied using a scanning electron microscope (SEM), as well as the arrangement of fibers within the matrix for the manufactured composite.

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Published

2025-03-11