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Fat‐Based synthetic lubricants
Author(s) -
Matthews D. M.
Publication year - 1979
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02667459
Subject(s) - pentaerythritol , dibasic acid , polyol , chemistry , lubricity , organic chemistry , synthetic oil , camelina , thermal stability , pour point , lubricant , saponification , materials science , base oil , polyurethane , scanning electron microscope , food science , fire retardant , composite material
Synthetic lubricants derived from fat‐based materials are almost exclusively esters of the following type: (a) mono and dibasic acid esters, e.g., laurates, stearates of short chain aliphatic alcohols, azelates and sebacates of oxo alcohols; (b) polyalkylene glycols and glycol esters, e.g., triethyleneglycol dicaprylate caprate and others; (c) branched polyol or nucleic polyol esters derived from pentaerythritol or trimethylol alkanes and saturated short chained acid of the C 6 , C 8 , C 9 type; (d) triglycerides, specifically tailored by the rearrangement of two or more naturally occurring triglycerides. Among the unique but desirable characteristics of synthetic lubricants are: good lubricity, minimum viscosity change with temperature (high VI), low temperature fluidity, high thermal and oxidation stability, low volatility, excellent additive response, seal and gasket compatability and high fire and flash points.