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Table 1 Type and application of synthetic biolubricants [9]

From: Synthesis, reactivity and application studies for different biolubricants

No.

Class

Type

Operating temperature °C

Applications

Advantages vs. mineral oil

Limiting properties

1.

Synthesized fluids hydrocarbons (SFHs)

Polyalphaolefins, alkylated aromatics, polybutenes, cycloaliphatic

155 to -45

Machine tool spindles, Freezer plants-motors, conveyors, bearings

High temperature stability, long life, low temperature fluidity, high viscosity index, improved wear protection, low volatility, oil economy

Solvency/detergency, seal compatibility

2.

Organic esters

Dibasic acid ester, polyol ester

204 to -35

Commercial manual transmission

No wax, high temperature stability, long life, low temperature fluidity, solvency/detergency

Seal compatibility, mineral oil compatibility, antiwear and extreme pressure, hydrolytic stability, paint compatibility

3.

Phosphate esters (phosphoric acid esters)

Triaryl phosphate ester, trialkyl phosphate ester, mixed alkylaryl phosphate esters

180 to -18

Hydraulic Systems

Fiber resistance, lubricating ability

Seal compatibility, low viscosity index, paint compatibility, metal corrosion, hydrolytic stability

4.

Polyglycols

Polyalkylene, polyoxyalklylene, polyethers, glycols

245 to -20

Gas turbines

Water versatility, high viscosity index, low temperature fluidity, antirust, no wax

Mineral oil compatibility, paint compatibility, oxidation stability

  1. Source: Salimon et al. [9].