The physicochemical and tribological properties of oleic acid based triester biolubricants

Nadia Salih, Jumat Salimon, Emad Yousif

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

Currently, increasing pollutants in the environment lead to an increase in the use of plant oil based biolubricants. These products could lead to a significant reduction in environmental pollution and thus contribute to the discovery of a replacement for petroleum-based lubricants. Plant oils are advantageous because they are rapidly biodegradable, renewable, excellent lubricants and inexpensive to produce. However, these oils show poor stability to oxidation and unfavorable properties at low temperatures. Thus, this work outlines modifications in the epoxidation, oxirane ring opening, esterification and acylation reactions used to produce oleic acid based triester derivatives. These products have improved physicochemical and tribological properties that make them good biolubricant base stock candidates. Octyl 9-(lauroyloxy)-10-(behenoxy)octadecanoate 22 has the lowest pour point (-45°C) while octyl 9-(lauroyloxy)-10-(octyloxy)octadecanoate 16 has the highest onset temperature. Based on the results, an increase in mid chain substituent length improves the pour point and anti-wear properties but conversely lowers the onset temperature.

Original languageEnglish
Pages (from-to)1089-1096
Number of pages8
JournalIndustrial Crops and Products
Volume34
Issue number1
DOIs
Publication statusPublished - Jul 2011

Fingerprint

biolubricants
pour point
oleic acid
lubricants
plant fats and oils
ethylene oxide
temperature
acylation
biodegradability
esterification
petroleum
chemical derivatives
pollution
pollutants
oxidation
oils

Keywords

  • Biolubricants
  • Oxidation onset
  • Pour point
  • Synthetic oleic acid triesters
  • Tribological properties

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

The physicochemical and tribological properties of oleic acid based triester biolubricants. / Salih, Nadia; Salimon, Jumat; Yousif, Emad.

In: Industrial Crops and Products, Vol. 34, No. 1, 07.2011, p. 1089-1096.

Research output: Contribution to journalArticle

Salih, Nadia ; Salimon, Jumat ; Yousif, Emad. / The physicochemical and tribological properties of oleic acid based triester biolubricants. In: Industrial Crops and Products. 2011 ; Vol. 34, No. 1. pp. 1089-1096.
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