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United States Department of Agriculture

Agricultural Research Service

Title: Investigation of the Elastohydrodynamic Properties of Estolides1

Authors
item Biresaw, Girma
item Isbell, Terry
item Cermak, Steven

Submitted to: Society of Tribologists and Lubrication Engineers
Publication Type: Abstract Only
Publication Acceptance Date: November 30, 2005
Publication Date: May 7, 2006
Citation: Biresaw, G., Isbell, T., Cermak, S.C. 2006. Investigation of the elastohydrodynamic properties of estolides [abstract]. Society of Tribologists and Lubrication Engineers. p. 236.

Technical Abstract: Estolides are oligoester biobased materials obtained from the synthesis of ingredients derived from agricultural products. The ingredients used in estolide synthesis include unsaturated fatty acids and functionalized mono- and tri-glycerides, all of which are obtained from seed oils. Estolide synthesis involves the reaction of fatty acids with a double bond and/or hydroxyl group. Estolides of varying chemical structures (e.g., branching), and physical properties (e.g., mol wt, viscosity) have been obtained by varying the chemistries of the starting materials and the reaction conditions. Estolides have been investigated for some lubrication applications, and were found to have various attractive characteristics (e.g. low pour point). However, the effect of estolide chemical/physical characteristics on its tribological properties have yet to be fully understood. In this work, the effect of estolide physical/chemical variability on its elastohydrodynamic properties will be examined.

Last Modified: 10/24/2014
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