Page Banner

United States Department of Agriculture

Agricultural Research Service

Research Project: DEVELOPMENT AND UTILIZATION OF NEW OILSEED CROPS AND PRODUCTS

Location: Bio-oils Research Unit

Title: Estolides - ready for practical use

Authors
item CERMAK, STEVEN
item Bredsguard, Jakob -
item Mccalvin, Justin -
item John, Billee -
item Isbell, Katelyn -
item ISBELL, TERRY

Research conducted cooperatively with:
item

Submitted to: Society of Tribologists and Lubrication Engineers
Publication Type: Abstract Only
Publication Acceptance Date: December 5, 2011
Publication Date: May 6, 2012
Citation: Cermak, S.C., Bredsguard, J.W., McCalvin, J., John, B.L., Isbell, K.N., Isbell, T. 2012. Estolides - ready for practical use [abstract]. Society of Tribologists and Lubrication Engineers Annual Meeting & Expo. p. 110.

Technical Abstract: Estolides have shown great promise as a bio-based lubricant and are ready for commercialization. Estolides are non-toxic and bio-degradable. Testing has shown estolides have increased oxidative stability over vegetable oil-based lubricants and have a relatively low pour point, allowing them to be used in a wide range of applications. Estolides are formed when the carboxylic acid functionality of one fatty acid links to the site of unsaturation of another fatty acid to form an ester. Estolides were derived from a number of raw material sources and evaluated. In addition, a one-pot process was performed in which the ester functionality of an estolide ester was varied. The estolide esters were converted to their corresponding hydroxy fatty acid and the degree of polymerization and iodine values were determined by GC analysis. Physical properties (pour and cloud points, viscosities, viscosity index, and color) of these estolide esters will be compared to commercial products.

Last Modified: 8/19/2014
Footer Content Back to Top of Page