Antiwear Performances of Dicarboxylic Acids in Vegetable Oils

This study deals with the evaluation of antiwear performance of the vegetable oils [soybean oil, corn oil, rapeseed oil, and sunflower oil] and their blends, containing varying amounts of acetone, and organic acids [oxalic acid, succinic acid, and adipic acid]. Four-ball tribometer was employed as t...

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Autores principales:	Ikram ul Haq, Ahtaram Bibi
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2007
Materias:	vegetable oils antiwear properties wear scar diameter four-ball tribometer dicarboxylic acids 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/82bce1fe085a49b6a11908676edb3bee
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spelling	oai:doaj.org-article:82bce1fe085a49b6a11908676edb3bee2021-11-05T09:29:49ZAntiwear Performances of Dicarboxylic Acids in Vegetable Oils1881-219810.2474/trol.2.68https://doaj.org/article/82bce1fe085a49b6a11908676edb3bee2007-07-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/2/3/2_3_68/_pdf/-char/enhttps://doaj.org/toc/1881-2198This study deals with the evaluation of antiwear performance of the vegetable oils [soybean oil, corn oil, rapeseed oil, and sunflower oil] and their blends, containing varying amounts of acetone, and organic acids [oxalic acid, succinic acid, and adipic acid]. Four-ball tribometer was employed as the wear tester. Extensive optimization with respect to the test oil composition was performed in order to explore the conditions under which the test oil demonstrated superior antiwear performance. In all cases, the desired conditions were obtained under a narrow range of test oil composition. It was observed that under the constant applied load of 78 N, test duration of 1 h, and given oil viscosity, succinic acid was found to be the most effective antiwear additive, i.e., resulted in smaller wear scar diameter [WSD] among the employed acids in all the test oils. For example, at 0.02 wt % of the succinic acid loading, the relative wear [WSDacid-loaded oil / WSDacid-free oil] was found to be 0.53, 0.62, 0.65, and 0.67 for the soybean oil [vis., 35 cSt], corn oil [vis., 33 cSt], rapeseed oil [vis., 47 cSt], and sunflower oil [vis., 36 cSt], respectively. The values of of the relative wear obtained under similar conditions with the same oils in the presence of oxalic acid and adipic acid were on the higher side of those obtained with the succinic acid. Further work is in progress in order to formulate energy saving and high performance environmental friendly lubricants for a wide range of practical applications.Ikram ul HaqAhtaram BibiJapanese Society of Tribologistsarticlevegetable oilsantiwear propertieswear scar diameterfour-ball tribometerdicarboxylic acidsPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 2, Iss 3, Pp 68-72 (2007)
institution	DOAJ
collection	DOAJ
language	EN
topic	vegetable oils antiwear properties wear scar diameter four-ball tribometer dicarboxylic acids Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	vegetable oils antiwear properties wear scar diameter four-ball tribometer dicarboxylic acids Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Ikram ul Haq Ahtaram Bibi Antiwear Performances of Dicarboxylic Acids in Vegetable Oils
description	This study deals with the evaluation of antiwear performance of the vegetable oils [soybean oil, corn oil, rapeseed oil, and sunflower oil] and their blends, containing varying amounts of acetone, and organic acids [oxalic acid, succinic acid, and adipic acid]. Four-ball tribometer was employed as the wear tester. Extensive optimization with respect to the test oil composition was performed in order to explore the conditions under which the test oil demonstrated superior antiwear performance. In all cases, the desired conditions were obtained under a narrow range of test oil composition. It was observed that under the constant applied load of 78 N, test duration of 1 h, and given oil viscosity, succinic acid was found to be the most effective antiwear additive, i.e., resulted in smaller wear scar diameter [WSD] among the employed acids in all the test oils. For example, at 0.02 wt % of the succinic acid loading, the relative wear [WSDacid-loaded oil / WSDacid-free oil] was found to be 0.53, 0.62, 0.65, and 0.67 for the soybean oil [vis., 35 cSt], corn oil [vis., 33 cSt], rapeseed oil [vis., 47 cSt], and sunflower oil [vis., 36 cSt], respectively. The values of of the relative wear obtained under similar conditions with the same oils in the presence of oxalic acid and adipic acid were on the higher side of those obtained with the succinic acid. Further work is in progress in order to formulate energy saving and high performance environmental friendly lubricants for a wide range of practical applications.
format	article
author	Ikram ul Haq Ahtaram Bibi
author_facet	Ikram ul Haq Ahtaram Bibi
author_sort	Ikram ul Haq
title	Antiwear Performances of Dicarboxylic Acids in Vegetable Oils
title_short	Antiwear Performances of Dicarboxylic Acids in Vegetable Oils
title_full	Antiwear Performances of Dicarboxylic Acids in Vegetable Oils
title_fullStr	Antiwear Performances of Dicarboxylic Acids in Vegetable Oils
title_full_unstemmed	Antiwear Performances of Dicarboxylic Acids in Vegetable Oils
title_sort	antiwear performances of dicarboxylic acids in vegetable oils
publisher	Japanese Society of Tribologists
publishDate	2007
url	https://doaj.org/article/82bce1fe085a49b6a11908676edb3bee
work_keys_str_mv	AT ikramulhaq antiwearperformancesofdicarboxylicacidsinvegetableoils AT ahtarambibi antiwearperformancesofdicarboxylicacidsinvegetableoils
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Antiwear Performances of Dicarboxylic Acids in Vegetable Oils

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