Soybean oil based greases: Influence of composition on thermo-oxidative and tribochemical behavior

Brajendra K. Sharma, Atanu Adhvaryu, Joseph M. Perez, Sevim Z. Erhan

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The biodegradable properties and lubricating ability of greases depend on both the base oil and the thickener. Mineral oils are the most widely used lubricant base fluids due to their inherent lubricity and low cost, but recent environmental awareness has forced consideration of the use of biodegradable fluids such as vegetable oils and certain synthetic fluids in grease formulations. This study presents data on the thermo-oxidation behavior and tribology of biodegradable greases formulated with soybean oil and different compositions of metal soap thickener. The composition of thickener has been varied by using fatty acids with different degrees of unsaturation and fatty acids of different chain lengths. The improvement of thermo-oxidation and tribological properties as a result of changing thickener/ base oil ratio and the antioxidative effect of some suitable additives have also been evaluated.

Original languageEnglish (US)
Pages (from-to)2961-2968
Number of pages8
JournalJournal of agricultural and food chemistry
Volume53
Issue number8
DOIs
StatePublished - Apr 20 2005

Fingerprint

Soybean Oil
biodegradability
Lubricating greases
soybean oil
Oils
Fatty Acids
Lubricants
Mineral Oil
Soaps
Plant Oils
Fluids
Base Composition
Chemical analysis
oxidation
fatty acids
lubricants
Oxidation
oils
Soaps (detergents)
mineral oil

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Agricultural and Biological Sciences(all)

Cite this

Sharma, Brajendra K. ; Adhvaryu, Atanu ; Perez, Joseph M. ; Erhan, Sevim Z. / Soybean oil based greases : Influence of composition on thermo-oxidative and tribochemical behavior. In: Journal of agricultural and food chemistry. 2005 ; Vol. 53, No. 8. pp. 2961-2968.
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Soybean oil based greases : Influence of composition on thermo-oxidative and tribochemical behavior. / Sharma, Brajendra K.; Adhvaryu, Atanu; Perez, Joseph M.; Erhan, Sevim Z.

In: Journal of agricultural and food chemistry, Vol. 53, No. 8, 20.04.2005, p. 2961-2968.

Research output: Contribution to journalArticle

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AB - The biodegradable properties and lubricating ability of greases depend on both the base oil and the thickener. Mineral oils are the most widely used lubricant base fluids due to their inherent lubricity and low cost, but recent environmental awareness has forced consideration of the use of biodegradable fluids such as vegetable oils and certain synthetic fluids in grease formulations. This study presents data on the thermo-oxidation behavior and tribology of biodegradable greases formulated with soybean oil and different compositions of metal soap thickener. The composition of thickener has been varied by using fatty acids with different degrees of unsaturation and fatty acids of different chain lengths. The improvement of thermo-oxidation and tribological properties as a result of changing thickener/ base oil ratio and the antioxidative effect of some suitable additives have also been evaluated.

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