Tribological properties of graphene oxide as a lubricating additive in water and lubricating oils

High-performance lubricating additives are desired in order to improve the properties of lubricating fluids. Recently, carbon nanomaterials such as fullerenes, carbon nanotubes, and carbon onions have been studied as lubricating additives for water and lubricating oils. However, the costs of these c...

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Autores principales:	Hiroshi KINOSHITA, Hideki ONO, Aidil Azli ALIAS, Yuta NISHINA, Masahiro FUJII
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2015
Materias:	graphene oxide water lubricating oils friction coefficient wear additives Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/a1e3468a7fb749cc966186d1b53d09f5
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spelling	oai:doaj.org-article:a1e3468a7fb749cc966186d1b53d09f52021-11-26T06:32:14ZTribological properties of graphene oxide as a lubricating additive in water and lubricating oils2187-974510.1299/mej.15-00323https://doaj.org/article/a1e3468a7fb749cc966186d1b53d09f52015-12-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/2/6/2_15-00323/_pdf/-char/enhttps://doaj.org/toc/2187-9745High-performance lubricating additives are desired in order to improve the properties of lubricating fluids. Recently, carbon nanomaterials such as fullerenes, carbon nanotubes, and carbon onions have been studied as lubricating additives for water and lubricating oils. However, the costs of these carbon nanomaterials are too high for practical use. On the other hand, graphene oxide (GO) is a carbon nanomaterial that consists of single atom thick sheets that possess a large number of oxygen functional groups. Since GO is synthesized from graphite using a chemical liquid process, the cost of GO is significantly lower than other carbon nanomaterials. In this study, the application and tribological properties of GO monolayer sheets as additives in water and poly-alpha olefin (PAO) were investigated. The dependence of the friction coefficient of GO-water dispersions on GO concentration (0.01-1.0 mass %) was investigated. In particular, GO-water dispersions with a concentration of less than 0.1 mass % demonstrated low friction coefficients. In this study, GO was simply dispersed in PAO using surfactant and intermediary solvents without the need for drying treatments. We found that the use of anionic surfactants in the GO-PAO dispersions was better than cationic surfactants in terms of the degree of wear observed. Specifically, GO-PAO dispersions that used an anionic surfactant with a GO concentration of 4 mass % had the smallest wear in this study. Moreover, friction coefficients were not decreased by the addition of GO in PAO. Finally, we found that intermediary solvents did not affect lubrication.Hiroshi KINOSHITAHideki ONOAidil Azli ALIASYuta NISHINAMasahiro FUJIIThe Japan Society of Mechanical Engineersarticlegraphene oxidewaterlubricating oilsfriction coefficientwearadditivesMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 2, Iss 6, Pp 15-00323-15-00323 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	graphene oxide water lubricating oils friction coefficient wear additives Mechanical engineering and machinery TJ1-1570
spellingShingle	graphene oxide water lubricating oils friction coefficient wear additives Mechanical engineering and machinery TJ1-1570 Hiroshi KINOSHITA Hideki ONO Aidil Azli ALIAS Yuta NISHINA Masahiro FUJII Tribological properties of graphene oxide as a lubricating additive in water and lubricating oils
description	High-performance lubricating additives are desired in order to improve the properties of lubricating fluids. Recently, carbon nanomaterials such as fullerenes, carbon nanotubes, and carbon onions have been studied as lubricating additives for water and lubricating oils. However, the costs of these carbon nanomaterials are too high for practical use. On the other hand, graphene oxide (GO) is a carbon nanomaterial that consists of single atom thick sheets that possess a large number of oxygen functional groups. Since GO is synthesized from graphite using a chemical liquid process, the cost of GO is significantly lower than other carbon nanomaterials. In this study, the application and tribological properties of GO monolayer sheets as additives in water and poly-alpha olefin (PAO) were investigated. The dependence of the friction coefficient of GO-water dispersions on GO concentration (0.01-1.0 mass %) was investigated. In particular, GO-water dispersions with a concentration of less than 0.1 mass % demonstrated low friction coefficients. In this study, GO was simply dispersed in PAO using surfactant and intermediary solvents without the need for drying treatments. We found that the use of anionic surfactants in the GO-PAO dispersions was better than cationic surfactants in terms of the degree of wear observed. Specifically, GO-PAO dispersions that used an anionic surfactant with a GO concentration of 4 mass % had the smallest wear in this study. Moreover, friction coefficients were not decreased by the addition of GO in PAO. Finally, we found that intermediary solvents did not affect lubrication.
format	article
author	Hiroshi KINOSHITA Hideki ONO Aidil Azli ALIAS Yuta NISHINA Masahiro FUJII
author_facet	Hiroshi KINOSHITA Hideki ONO Aidil Azli ALIAS Yuta NISHINA Masahiro FUJII
author_sort	Hiroshi KINOSHITA
title	Tribological properties of graphene oxide as a lubricating additive in water and lubricating oils
title_short	Tribological properties of graphene oxide as a lubricating additive in water and lubricating oils
title_full	Tribological properties of graphene oxide as a lubricating additive in water and lubricating oils
title_fullStr	Tribological properties of graphene oxide as a lubricating additive in water and lubricating oils
title_full_unstemmed	Tribological properties of graphene oxide as a lubricating additive in water and lubricating oils
title_sort	tribological properties of graphene oxide as a lubricating additive in water and lubricating oils
publisher	The Japan Society of Mechanical Engineers
publishDate	2015
url	https://doaj.org/article/a1e3468a7fb749cc966186d1b53d09f5
work_keys_str_mv	AT hiroshikinoshita tribologicalpropertiesofgrapheneoxideasalubricatingadditiveinwaterandlubricatingoils AT hidekiono tribologicalpropertiesofgrapheneoxideasalubricatingadditiveinwaterandlubricatingoils AT aidilazlialias tribologicalpropertiesofgrapheneoxideasalubricatingadditiveinwaterandlubricatingoils AT yutanishina tribologicalpropertiesofgrapheneoxideasalubricatingadditiveinwaterandlubricatingoils AT masahirofujii tribologicalpropertiesofgrapheneoxideasalubricatingadditiveinwaterandlubricatingoils
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Tribological properties of graphene oxide as a lubricating additive in water and lubricating oils

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