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Epoxy and Polyester Composites’ Characteristics under Tribological Loading Conditions

This research examines the friction and dry wear behaviours of glass fibre-reinforced epoxy (GFRE) and glass fibre-reinforced polyester (GFRP) composites. Three fibre orientations—parallel orientation (P–O), anti-parallel orientation (AP–O), and normal orientation (N–O)—and various sliding distances...

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Autores principales: Alotaibi, Jasem Ghanem, Eid Alajmi, Ayedh, Mehoub, Gabrel A., Yousif, Belal F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8309322/
https://www.ncbi.nlm.nih.gov/pubmed/34300988
http://dx.doi.org/10.3390/polym13142230
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author Alotaibi, Jasem Ghanem
Eid Alajmi, Ayedh
Mehoub, Gabrel A.
Yousif, Belal F.
author_facet Alotaibi, Jasem Ghanem
Eid Alajmi, Ayedh
Mehoub, Gabrel A.
Yousif, Belal F.
author_sort Alotaibi, Jasem Ghanem
collection PubMed
description This research examines the friction and dry wear behaviours of glass fibre-reinforced epoxy (GFRE) and glass fibre-reinforced polyester (GFRP) composites. Three fibre orientations—parallel orientation (P–O), anti-parallel orientation (AP–O), and normal orientation (N–O)—and various sliding distances from 0–15 km were examined. The experiments were carried out using a block-on-ring configuration at room temperature, an applied load of 30 N, and a sliding velocity of 2.8 m/s. During the sliding, interface temperatures and frictional forces were captured and recorded. Worn surfaces were examined using scanning electron microscopy to identify the damage. The highest wear rates for GFRE composites occurred in those with AP–O fibres, while the highest wear rates for GFRP composites occurred in those with P–O fibres. At longer sliding distances, composites with P–O and N–O fibres had the lowest wear rates. The highest friction coefficient was observed for composites with N–O and P–O fibres at higher sliding speeds. The lowest friction coefficient value (0.25) was for composites with AP–O fibres. GFRP composites with P–O fibres had a higher wear rate than those with N–O fibres at the maximum speed.
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spelling pubmed-83093222021-07-25 Epoxy and Polyester Composites’ Characteristics under Tribological Loading Conditions Alotaibi, Jasem Ghanem Eid Alajmi, Ayedh Mehoub, Gabrel A. Yousif, Belal F. Polymers (Basel) Article This research examines the friction and dry wear behaviours of glass fibre-reinforced epoxy (GFRE) and glass fibre-reinforced polyester (GFRP) composites. Three fibre orientations—parallel orientation (P–O), anti-parallel orientation (AP–O), and normal orientation (N–O)—and various sliding distances from 0–15 km were examined. The experiments were carried out using a block-on-ring configuration at room temperature, an applied load of 30 N, and a sliding velocity of 2.8 m/s. During the sliding, interface temperatures and frictional forces were captured and recorded. Worn surfaces were examined using scanning electron microscopy to identify the damage. The highest wear rates for GFRE composites occurred in those with AP–O fibres, while the highest wear rates for GFRP composites occurred in those with P–O fibres. At longer sliding distances, composites with P–O and N–O fibres had the lowest wear rates. The highest friction coefficient was observed for composites with N–O and P–O fibres at higher sliding speeds. The lowest friction coefficient value (0.25) was for composites with AP–O fibres. GFRP composites with P–O fibres had a higher wear rate than those with N–O fibres at the maximum speed. MDPI 2021-07-07 /pmc/articles/PMC8309322/ /pubmed/34300988 http://dx.doi.org/10.3390/polym13142230 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Alotaibi, Jasem Ghanem
Eid Alajmi, Ayedh
Mehoub, Gabrel A.
Yousif, Belal F.
Epoxy and Polyester Composites’ Characteristics under Tribological Loading Conditions
title Epoxy and Polyester Composites’ Characteristics under Tribological Loading Conditions
title_full Epoxy and Polyester Composites’ Characteristics under Tribological Loading Conditions
title_fullStr Epoxy and Polyester Composites’ Characteristics under Tribological Loading Conditions
title_full_unstemmed Epoxy and Polyester Composites’ Characteristics under Tribological Loading Conditions
title_short Epoxy and Polyester Composites’ Characteristics under Tribological Loading Conditions
title_sort epoxy and polyester composites’ characteristics under tribological loading conditions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8309322/
https://www.ncbi.nlm.nih.gov/pubmed/34300988
http://dx.doi.org/10.3390/polym13142230
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