Ester based lubricants deriwed from renewable resources

B. Kržan, J. Vižintin

Tribology in Industry 26 (2004) 58–62.


The development of lubricants like, e.g. engine and hydraulic oils was traditionally based on mineral oil as a base fluid. This fact is related to the good technical properties and the reasonable price of mineral oils. A disadvantage of mineral oil is its poor biodegradability and thus its potential for long-term pollution of the environment. Subsequently, innumerable synthetic esters have been synthesized by systematic variation of the fatty acid and the alcohol components. Whereas the alcohol parts of the environmentally adapted synthetic esters are usually of petrochemical origin, the fatty acids are almost exclusively based on renewable resources. The physical-chemical properties of biobased synthetic esters can cover the complete spectrum of technical requirements for the development of high-performance industrial oils and lubricants. From the technical point of view, and disregarding overall costs, more than 90% of all present-day lubricants could be formulated to be environmentally adapted.

Keywords: environmentally adapted lubricants, ester oils, oxidation stability, friction, wear, maziva, estrska olja, prilagajanje okolju, oksidacijska stabilnost, trenje, obraba


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