Styrene-Butadiene (SBR) Viscosity Index Improver
Styrene-butadiene (SBR) block copolymers are versatile viscosity index improvers used in automatic transmission fluids, power steering fluids, and hydraulic oils where both low-temperature fluidity and high-temperature viscosity retention are critical. The star-polymer architecture provides excellent low-temperature performance while the high molecular weight ensures effective thickening. Hydrogenated grades offer improved oxidative stability for applications requiring extended service life.
Технические характеристики
| appearance | Amber to dark amber viscous liquid |
| styrene content | 20–40 wt% |
| flash point (COC) | >175 °C |
| molecular weight (Mw) | 80,000–200,000 Da |
| shear stability index (SSI) | 5–25 |
| active content in solvent/diluent | 15–30 wt% |
Области применения
- Automatic transmission fluids (ATF) for improved cold-start and high-temperature performance
- Power steering fluids and electric power steering fluids
- Hydraulic fluids with wide operating temperature range requirements
- Industrial multi-grade gear and circulation oils
- Farm tractor universal fluids (UTTO/STOU)
Особенности продукта
- Star-polymer architecture delivers excellent low-temperature viscometric performance in ATF applications
- Good shear stability (low SSI) maintains viscosity through transmission service life
- Compatible with a wide range of ATF friction modifiers and base oil types
- Hydrogenated grades available for improved oxidative and thermal stability in demanding applications
Send Inquiry
Ещё продукты в категории Противоизносные присадки
API CK-4 Heavy-Duty Diesel Engine Oil Additive Package
API SN/SP Passenger Car Engine Oil Additive Package
Alkylated Diphenylamine (ADPA) Antioxidant
Amine Phosphate Antiwear Additive
Aromatic Seal Swell and Conditioner Additive
Automatic Transmission Fluid (ATF) Additive Package
Barium Dinonylnaphthalene Sulfonate Rust Inhibitor
Calcium Complex Soap Grease Thickener