Synthesis and Physical Properties of Potential Biolubricants based on Ricinoleic Acid
Journal of the American Oil Chemists' Society(2010)
摘要
The desire to replace petroleum-based materials with environmentally friendly and sustainable alternatives has stimulated the development of vegetable oil-based materials as biolubricants. Our studies have focused on molecules that might be produced by biosynthesis of genetically altered oilseed plants with limited post-harvest modification. Various ricinoleate and 12-hydroxystearate esters and estolides were synthesized and their melting points and viscosities were documented. The antifriction and antiwear properties of some esters were evaluated with a microtribometer. The purities of all the products were >98–99% by gas chromatography. Some of these compounds showed melting points, viscosities, and lubricity suitable for uses as biolubricants. Various ricinoleate esters acylated at the 12 positions with short-chain acids were particularly promising.
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关键词
12-Acetylricinoleate esters,Friction,12-Hydroxystearate,Melting point,Ricinoleate,Viscosity,Wear
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