Improvement of Tribological Properties of Epoxy Resin by Addition of Oxidized Nanocarbons

Graphene oxide (GO) and oxidized wood-derived nanocarbon (oWNC) were dispersed in an epoxy resin to improve the mechanical and tribological properties of an epoxy resin. Mechanical properties of the GO/epoxy (GO/EP) and oWNC/epoxy composites (oWNC/EP) were investigated by tensile tests and nano-inde...

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Autores principales:	Naohiro Matsumoto, Yusuke Yukiyoshi, Yuya Omiya, Hiroshi Kinoshita
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2020
Materias:	oxidized nanocarbon graphene oxide epoxy resin friction wear resistance Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/3efa7395535947aba1982a26043e6677
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spelling	oai:doaj.org-article:3efa7395535947aba1982a26043e66772021-11-05T09:11:45ZImprovement of Tribological Properties of Epoxy Resin by Addition of Oxidized Nanocarbons1881-219810.2474/trol.15.78https://doaj.org/article/3efa7395535947aba1982a26043e66772020-04-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/15/2/15_78/_pdf/-char/enhttps://doaj.org/toc/1881-2198Graphene oxide (GO) and oxidized wood-derived nanocarbon (oWNC) were dispersed in an epoxy resin to improve the mechanical and tribological properties of an epoxy resin. Mechanical properties of the GO/epoxy (GO/EP) and oWNC/epoxy composites (oWNC/EP) were investigated by tensile tests and nano-indentation. Under dry, water, and oil lubrication conditions, friction coefficients and wear volumes of these composites were measured. GO has single-layered structure. oWNC has chain-like nanostructures, and the nanochains are aggregated. GO and oWNCs have same surface chemical composition due to the same oxidation treatment. Thus, in this study, the structure and morphology dependences of the nanocarbons in mechanical and tribological properties will be appeared when the nanocarbons were used as the additives in the resin. The tensile strength, tensile modulus, and hardness increased by 20%, 63%, and 35% in maximum by the addition of GO and oWNC to the epoxy resin, respectively. Moreover, the wear resistance of GO/EP and oWNC/EP was enhanced compared to that of a neat epoxy. The reduction rates of the wear volume for 5.0 mass% GO/EP and 1.0 mass% oWNC/EP achieved to 91% and 67%, respectively. Comparing GO and oWNC, oWNC effectively reduced the friction coefficient and wear at a lower concentration. The improvement of tribological properties after the addition of the oxidized nanocarbons can be attributed to the increase in the hardness and lubricity of the composites.Naohiro MatsumotoYusuke YukiyoshiYuya OmiyaHiroshi KinoshitaJapanese Society of Tribologistsarticleoxidized nanocarbongraphene oxideepoxy resinfrictionwear resistancePhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 15, Iss 2, Pp 78-88 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	oxidized nanocarbon graphene oxide epoxy resin friction wear resistance Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	oxidized nanocarbon graphene oxide epoxy resin friction wear resistance Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Naohiro Matsumoto Yusuke Yukiyoshi Yuya Omiya Hiroshi Kinoshita Improvement of Tribological Properties of Epoxy Resin by Addition of Oxidized Nanocarbons
description	Graphene oxide (GO) and oxidized wood-derived nanocarbon (oWNC) were dispersed in an epoxy resin to improve the mechanical and tribological properties of an epoxy resin. Mechanical properties of the GO/epoxy (GO/EP) and oWNC/epoxy composites (oWNC/EP) were investigated by tensile tests and nano-indentation. Under dry, water, and oil lubrication conditions, friction coefficients and wear volumes of these composites were measured. GO has single-layered structure. oWNC has chain-like nanostructures, and the nanochains are aggregated. GO and oWNCs have same surface chemical composition due to the same oxidation treatment. Thus, in this study, the structure and morphology dependences of the nanocarbons in mechanical and tribological properties will be appeared when the nanocarbons were used as the additives in the resin. The tensile strength, tensile modulus, and hardness increased by 20%, 63%, and 35% in maximum by the addition of GO and oWNC to the epoxy resin, respectively. Moreover, the wear resistance of GO/EP and oWNC/EP was enhanced compared to that of a neat epoxy. The reduction rates of the wear volume for 5.0 mass% GO/EP and 1.0 mass% oWNC/EP achieved to 91% and 67%, respectively. Comparing GO and oWNC, oWNC effectively reduced the friction coefficient and wear at a lower concentration. The improvement of tribological properties after the addition of the oxidized nanocarbons can be attributed to the increase in the hardness and lubricity of the composites.
format	article
author	Naohiro Matsumoto Yusuke Yukiyoshi Yuya Omiya Hiroshi Kinoshita
author_facet	Naohiro Matsumoto Yusuke Yukiyoshi Yuya Omiya Hiroshi Kinoshita
author_sort	Naohiro Matsumoto
title	Improvement of Tribological Properties of Epoxy Resin by Addition of Oxidized Nanocarbons
title_short	Improvement of Tribological Properties of Epoxy Resin by Addition of Oxidized Nanocarbons
title_full	Improvement of Tribological Properties of Epoxy Resin by Addition of Oxidized Nanocarbons
title_fullStr	Improvement of Tribological Properties of Epoxy Resin by Addition of Oxidized Nanocarbons
title_full_unstemmed	Improvement of Tribological Properties of Epoxy Resin by Addition of Oxidized Nanocarbons
title_sort	improvement of tribological properties of epoxy resin by addition of oxidized nanocarbons
publisher	Japanese Society of Tribologists
publishDate	2020
url	https://doaj.org/article/3efa7395535947aba1982a26043e6677
work_keys_str_mv	AT naohiromatsumoto improvementoftribologicalpropertiesofepoxyresinbyadditionofoxidizednanocarbons AT yusukeyukiyoshi improvementoftribologicalpropertiesofepoxyresinbyadditionofoxidizednanocarbons AT yuyaomiya improvementoftribologicalpropertiesofepoxyresinbyadditionofoxidizednanocarbons AT hiroshikinoshita improvementoftribologicalpropertiesofepoxyresinbyadditionofoxidizednanocarbons
_version_	1718444404586315776

Improvement of Tribological Properties of Epoxy Resin by Addition of Oxidized Nanocarbons

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