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Tribological characterisation of plant oil derived fatty acid esters of higher polyols: Comparative experimental study
Author(s) -
Nowicki Janusz,
Drabik Jolanta,
Woszczyński Piotr,
Gębura Katarzyna,
NowakowskaBogdan Ewa,
Kozdrach Rafal
Publication year - 2019
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.1448
Subject(s) - trimethylolpropane , organic chemistry , catalysis , synthetic oil , tribology , chemistry , thermal decomposition , decomposition , viscosity , viscosity index , lubrication , pour point , chemical engineering , materials science , base oil , composite material , polyurethane , scanning electron microscope , engineering
In this paper, we present the study on the synthesis, physico‐chemical, and tribological characterisation of selected plant‐derived fatty acids esters of higher polyols. We described here more effective method synthesis of desired esters with high yields and high selectivities. In our novel and improved synthesis protocol, we applied homogeneous Sn catalysts. Physico‐chemical characterisation and lubricating properties of synthesised esters have been determined and discussed. Our results showed that the synthesised esters are characterised by excellent viscosity, good low temperature, and lubrication properties. High thermal resistance is the main benefit of synthesised esters. For fatty acid esters of trimethylolpropane dimer, onset temperatures are around 400°C and decomposition temperatures above 460°C, which makes these esters applicable in higher temperature.