Improving interfacial shear strength of fique fibres using an acrylic coating
Improving interfacial shear strength of fique fibres using an acrylic coating
Natural fibres have proven to be a potential alternative to replace synthetic fibres in some composite materials applications. However, drawbacks such as impregnation difficulties and the poor fibre–matrix interface limit the use of natural fibres in high-performance applications. This work proposes using an acrylic resin to coat the fibre surface to enhance the interfacial compatibility among fique fibres and polyester resin. Pull-out tests revealed an improvement in the interfacial shear strength of about 110% for coated fibres. Furthermore, nanoindentation test, Micro Raman spectroscopy and scanning electronic microscopy indicated that the acrylic resin eliminates the gap at the fibre/matrix interface seen in the uncoated fibres. Observed behaviour could be attributed to a better chemical bonding between the fibre and matrix and is also hypothesised that the elastic characteristic of the coating helps to transfer loads effectively from the matrix to the fibre.
fique fibre, interface/interphase analysis, interfacial strength, polymer composite, pull-out test
Vargas, Johnattan
affc2dd4-759b-4475-90e7-3d245b3508d7
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Meza, Juan Manuel
72cace4d-37b1-45a4-a653-d4f03dd417ec
25 October 2023
Vargas, Johnattan
affc2dd4-759b-4475-90e7-3d245b3508d7
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Meza, Juan Manuel
72cace4d-37b1-45a4-a653-d4f03dd417ec
Vargas, Johnattan, Jalalvand, Meisam and Meza, Juan Manuel
(2023)
Improving interfacial shear strength of fique fibres using an acrylic coating.
Science Progress, 106 (4).
(doi:10.1177/00368504231207199).
Abstract
Natural fibres have proven to be a potential alternative to replace synthetic fibres in some composite materials applications. However, drawbacks such as impregnation difficulties and the poor fibre–matrix interface limit the use of natural fibres in high-performance applications. This work proposes using an acrylic resin to coat the fibre surface to enhance the interfacial compatibility among fique fibres and polyester resin. Pull-out tests revealed an improvement in the interfacial shear strength of about 110% for coated fibres. Furthermore, nanoindentation test, Micro Raman spectroscopy and scanning electronic microscopy indicated that the acrylic resin eliminates the gap at the fibre/matrix interface seen in the uncoated fibres. Observed behaviour could be attributed to a better chemical bonding between the fibre and matrix and is also hypothesised that the elastic characteristic of the coating helps to transfer loads effectively from the matrix to the fibre.
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vargas-et-al-2023-improving-interfacial-shear-strength-of-fique-fibres-using-an-acrylic-coating
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Published date: 25 October 2023
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© The Author(s) 2023.
Keywords:
fique fibre, interface/interphase analysis, interfacial strength, polymer composite, pull-out test
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Local EPrints ID: 500784
URI: http://eprints.soton.ac.uk/id/eprint/500784
ISSN: 0036-8504
PURE UUID: d690853f-3780-4579-933b-2aae6d2a7ad3
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Date deposited: 13 May 2025 16:43
Last modified: 22 Aug 2025 02:29
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Author:
Johnattan Vargas
Author:
Juan Manuel Meza
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