Premium
Performance properties of oil‐soluble synthetic polyalkylene glycols
Author(s) -
Greaves Martin,
ZauggHoozemans Evelyn,
Khelidj Nadjet,
Voorst Ronald,
Meertens Rinus
Publication year - 2012
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.1179
Subject(s) - miscibility , base oil , hydrocarbon , ethylene oxide , chemical engineering , base (topology) , propylene oxide , synthetic oil , materials science , oxide , viscosity , compatibility (geochemistry) , organic chemistry , chemistry , copolymer , composite material , polymer , engineering , mathematics , scanning electron microscope , mathematical analysis
Conventional polyalkylene glycols (PAGs) that are derived from the polymerization of ethylene oxide and/or propylene oxide provide many performance benefits such as excellent friction control, good low temperature properties, high viscosity indices and excellent deposit control. One limitation is their poor miscibility in hydrocarbon oils. A new range of oil‐soluble PAG base oils has been developed using butylene oxide as one of the precursors, and these provide superior miscibility in hydrocarbon base stocks. The new base oils offer many of the traditional advantages of PAGs such as high viscosity indices, good low temperature properties and good traction behaviour. In addition, they can be used as a co‐base oil or additive in hydrocarbon base stocks to improve deposit control and provide good film‐forming behaviour. Examples of their structure property relationships will be discussed and also aspects of how this technology may enable application expansion of PAGs in the future. Copyright © 2012 John Wiley & Sons, Ltd.