Title of article
Substituted esters of stearic acid as potential lubricants
Author/Authors
Andrea Kleinova، نويسنده , , Peter Fodran، نويسنده , , Lucia Brncalova، نويسنده , , Jan CvengroS، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
6
From page
366
To page
371
Abstract
Preparation and properties of four triesters—derivatives of 9,10-dihydroxystearic acid after the epoxidation of methyl ester of the oleic acid, opening of the formed oxirane ring in suitable medium and esterification of free hydroxyl group is discussed in the paper. Removal of the double bond from acyl of the fatty acid, increase of the molar weight and change of molecular structure resulted in increase of viscosity and oxidation stability of prepared triesters. Lubrication tests performed on a four-ball machine showed better tribological characteristics of synthesized triesters when compared with mineral additive-free base oil.
Keywords
Vegetable oilsAnimal fatsLubricantsOleic acidEpoxidationDihydroxystearic acidOxidation stabilityTriestersMethyl esters
Journal title
Biomass and Bioenergy
Serial Year
2008
Journal title
Biomass and Bioenergy
Record number
407831
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