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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].