Triphenyl Phosphate (TPP) EP Additive
Triphenyl phosphate (TPP) is an aryl phosphate ester that functions as an antiwear and mild extreme-pressure additive in lubricants and hydraulic fluids. It forms a thin iron phosphate layer on metal surfaces at elevated temperatures, protecting against abrasive wear. TPP also provides excellent fire-resistant properties and is used in turbine oils, compressor lubricants, and phosphate ester-based hydraulic fluids where both lubricity and fire resistance are needed.
Teknik Özellikler
| purity | ≥99.0 wt% |
| appearance | Colorless to pale yellow liquid |
| density (20°C) | 1.20–1.21 g/cm³ |
| flash point (COC) | >220 °C |
| phosphorus content | 9.4–9.6 wt% |
| kinematic viscosity (40°C) | 14–18 mm²/s |
Uygulama Alanları
- Fire-resistant hydraulic fluids for steel mills and die-casting operations
- Turbine and compressor oils requiring antiwear and oxidation protection
- Electrical insulating oils and transformer lubricants
- Plasticizer and flame retardant in lubricating greases
- Component in anti-wear hydraulic oil packages
Ürün Özellikleri
- Effective antiwear protection via in-situ iron phosphate film formation on metal surfaces
- Excellent fire resistance and high flash point for use in hazardous industrial environments
- Low volatility and good thermal stability up to 200°C in continuous service
- Multifunctional: antiwear, flame retardant, and plasticizer properties in one molecule
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