Wear and Friction Behavior of Cellulose Nanofibers- Based Biogreases

(1) Background: Developing fully bio-based lubricating greases requires eco-friendly alternatives to conventional harmful components. This study highlights unmodified nanocellulose as an effective structuring agent in vegetable oils, enabling 100% bio-based formulations. (2) Methods: Three bio-based...

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Detalhes bibliográficos
Autores: Roman Fercheluc, Claudia, Delgado Canto, Miguel Ángel, García Pérez, María, Fernández Silva, Samuel David, Li, Ke, García Morales, Moisés
Formato: artículo
Fecha de publicación:2025
País:España
Recursos:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/27188
Acesso em linha:https://hdl.handle.net/10272/27188
Access Level:acceso abierto
Palavra-chave:Friction
Wear
Cellulose nanofiber
Biogreases
Environmentally acceptable lubricant
2302 Bioquímica
3101.08 Productos Agrícolas no Alimenticios
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spelling Wear and Friction Behavior of Cellulose Nanofibers- Based BiogreasesRoman Fercheluc, ClaudiaDelgado Canto, Miguel ÁngelGarcía Pérez, MaríaFernández Silva, Samuel DavidLi, KeGarcía Morales, MoisésRoman Fercheluc, ClaudiaFrictionWearCellulose nanofiberBiogreasesEnvironmentally acceptable lubricant2302 Bioquímica3101.08 Productos Agrícolas no Alimenticios(1) Background: Developing fully bio-based lubricating greases requires eco-friendly alternatives to conventional harmful components. This study highlights unmodified nanocellulose as an effective structuring agent in vegetable oils, enabling 100% bio-based formulations. (2) Methods: Three bio-based greases were formulated using 1.4 wt.% cellulose nanofibers (CNFs), derived from elm wood pulp through mechanical and chemical pretreatment, as thickening agents in castor oil. Their tribological performance was evaluated under varying temperatures and contact loads and compared to a reference lithium-based grease (LBG) containing 14 wt.% thickener, also formulated with castor oil. (3) Results: Among the CNFs, the unbleached variant (CNF-U) which retained the highest lignin content exhibited the highest coefficient of friction (COF), ranging from 0.09 to 0.14 across test conditions, along with a wear scar diameter of approximately 615 µm at 60 °C. Notable differences in shear stress sensitivity were observed between mechanically and chemically treated nanofibers. The TEMPO-oxidized nanofiber (CNF-TO) grease demonstrated outstanding lubrication stability across contact loads of 10–40 N and temperatures from 25 to 100 °C, maintaining COF values below 0.1—comparable to the reference LBG at 40 N load. Wear scar analysis confirmed that CNF-based greases significantly reduced wear relative to the lithium reference: CNF-B produced the smallest scar diameter (188 µm at 25 °C) while CNF-TO yielded the lowest at 60 °C (457 µm). (4) Conclusions: Nanofiber type and pretreatment significantly impact the tribological performance of CNF-based biogreases. TEMPO-oxidized CNFs provided stable lubrication under varied loads and temperatures, while all CNFs showed strong thermal adaptability, supporting their use in sustainable lubrication.MDPI20252025-01-0120252025-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10272/27188reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/271882026-06-02T14:58:11Z
dc.title.none.fl_str_mv Wear and Friction Behavior of Cellulose Nanofibers- Based Biogreases
title Wear and Friction Behavior of Cellulose Nanofibers- Based Biogreases
spellingShingle Wear and Friction Behavior of Cellulose Nanofibers- Based Biogreases
Roman Fercheluc, Claudia
Friction
Wear
Cellulose nanofiber
Biogreases
Environmentally acceptable lubricant
2302 Bioquímica
3101.08 Productos Agrícolas no Alimenticios
title_short Wear and Friction Behavior of Cellulose Nanofibers- Based Biogreases
title_full Wear and Friction Behavior of Cellulose Nanofibers- Based Biogreases
title_fullStr Wear and Friction Behavior of Cellulose Nanofibers- Based Biogreases
title_full_unstemmed Wear and Friction Behavior of Cellulose Nanofibers- Based Biogreases
title_sort Wear and Friction Behavior of Cellulose Nanofibers- Based Biogreases
dc.creator.none.fl_str_mv Roman Fercheluc, Claudia
Delgado Canto, Miguel Ángel
García Pérez, María
Fernández Silva, Samuel David
Li, Ke
García Morales, Moisés
Roman Fercheluc, Claudia
author Roman Fercheluc, Claudia
author_facet Roman Fercheluc, Claudia
Delgado Canto, Miguel Ángel
García Pérez, María
Fernández Silva, Samuel David
Li, Ke
García Morales, Moisés
author_role author
author2 Delgado Canto, Miguel Ángel
García Pérez, María
Fernández Silva, Samuel David
Li, Ke
García Morales, Moisés
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Friction
Wear
Cellulose nanofiber
Biogreases
Environmentally acceptable lubricant
2302 Bioquímica
3101.08 Productos Agrícolas no Alimenticios
topic Friction
Wear
Cellulose nanofiber
Biogreases
Environmentally acceptable lubricant
2302 Bioquímica
3101.08 Productos Agrícolas no Alimenticios
description (1) Background: Developing fully bio-based lubricating greases requires eco-friendly alternatives to conventional harmful components. This study highlights unmodified nanocellulose as an effective structuring agent in vegetable oils, enabling 100% bio-based formulations. (2) Methods: Three bio-based greases were formulated using 1.4 wt.% cellulose nanofibers (CNFs), derived from elm wood pulp through mechanical and chemical pretreatment, as thickening agents in castor oil. Their tribological performance was evaluated under varying temperatures and contact loads and compared to a reference lithium-based grease (LBG) containing 14 wt.% thickener, also formulated with castor oil. (3) Results: Among the CNFs, the unbleached variant (CNF-U) which retained the highest lignin content exhibited the highest coefficient of friction (COF), ranging from 0.09 to 0.14 across test conditions, along with a wear scar diameter of approximately 615 µm at 60 °C. Notable differences in shear stress sensitivity were observed between mechanically and chemically treated nanofibers. The TEMPO-oxidized nanofiber (CNF-TO) grease demonstrated outstanding lubrication stability across contact loads of 10–40 N and temperatures from 25 to 100 °C, maintaining COF values below 0.1—comparable to the reference LBG at 40 N load. Wear scar analysis confirmed that CNF-based greases significantly reduced wear relative to the lithium reference: CNF-B produced the smallest scar diameter (188 µm at 25 °C) while CNF-TO yielded the lowest at 60 °C (457 µm). (4) Conclusions: Nanofiber type and pretreatment significantly impact the tribological performance of CNF-based biogreases. TEMPO-oxidized CNFs provided stable lubrication under varied loads and temperatures, while all CNFs showed strong thermal adaptability, supporting their use in sustainable lubrication.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-01-01
2025
2025-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10272/27188
url https://hdl.handle.net/10272/27188
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869409801097707520
score 15,812429

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