PIB32 is a medium polyisobutylene widely used in lubricant oils. This additive helps stabilize the oil film and reduce loss during continuous operation. Many technical formulations choose this additive to create a stable lubricating layer and reduce friction under high load. Let’s explore the structure, properties, and practical applications of this additive.
PROPERTIES OF THE ADDITIVE IN LUBRICANT OILS
Polyisobutylene structure and the meaning of grade 32
Polyisobutylene is a long-chain polymer with high flexibility. The polymer chain is stable and resists thermal degradation. Grade 32 reflects a medium polymerization level, suitable for oils requiring moderate viscosity. The material disperses well in base oils and maintains consistency under temperature changes. The polymer network helps the oil adhere evenly to metal surfaces. The oil film becomes more stable and less prone to failure under heavy loads. This property helps lubricant systems maintain performance across different operating modes.
Key physical properties
The polymer provides strong adhesion in friction zones. The oil film becomes more durable and less likely to break when speed changes. Its chemical inertness reduces oxidation during long-term operation. Thermal resistance helps reduce evaporation in hot environments. Thanks to these properties, oils containing the polymer maintain viscosity and degrade more slowly. This is a major advantage in high-load mechanical systems.
ROLE IN INDUSTRIAL LUBRICANTS
Increasing viscosity and maintaining stability
The additive helps the oil retain viscosity as temperature rises. Oils normally thin quickly, but the polymer slows this reduction. The oil film maintains thickness and preserves lubrication. Equipment runs smoother and friction decreases clearly. Stable viscosity also supports smoother transition from cold start to hot operation. This consistency reduces vibration and lowers resistance in drive systems.
Forming a durable lubricating film and reducing friction
The polymer creates a uniform oil layer on metal surfaces. The film stays stable even when speed changes continuously. When the oil is stretched, the polymer helps prevent film breakage. Surfaces have less direct contact and experience lower wear throughout operation. A stable oil film also reduces heat generation. Equipment runs safer and avoids local overheating. This is essential for drivetrain and gear systems.
Reducing evaporation and lowering oil consumption
The polymer has low vapor pressure and retains oil in hot conditions. Oil loss decreases significantly during continuous operation. System pressure remains stable and the need for refilling decreases. Lower consumption ensures long-term safe operation. Equipment faces fewer oil-shortage risks and gains longer service life.
PRACTICAL APPLICATIONS IN LUBRICANT OIL LINES
Engine oils and compressor oils
In engine oils, the additive stabilizes the oil layer around pistons and rings. The film keeps its adhesion when speed increases. Engines vibrate less and burn fuel more efficiently. In compressor oils, the polymer reduces foaming and minimizes oil carry-over. The compression chamber runs more stable and stays cooler.
Gear oils and heavy-duty hydraulic oils
Gear oils need strong adhesion to reduce sliding between gear teeth. The polymer supports a stable oil film and reduces wear. In heavy hydraulic oils, film stability determines pressure retention. The polymer reduces leakage and maintains transmission force throughout operation.
Transformer oils, circulating oils, and marine oils
These oil systems require high thermal stability. The polymer maintains viscosity and reduces evaporation during long cycles. This improves system safety and long-term stability. In marine conditions, oil must adhere strongly even under vibration. The polymer supports this need and reduces sudden oil-loss risks.
VICHEM – OFFICIAL DISTRIBUTOR OF PIB32 FROM BRASKEM IN VIETNAM
Vichem is the official distributor of PIB32 from BRASKEM in the Vietnamese market. We supply high-quality products together with international-standard after-sales service.
- Technical consulting: Support customers in selecting the suitable product for their intended use.
- Color-matching tests: Vichem’s specialists perform color-matching tests to ensure results meet design standards.
- Application support: We accompany customers during integration into production lines to ensure optimal efficiency.
For more product information, please contact us via:
📞 Hotline: 08 1790 1790
📧 Email: contact@vichem.vn
🔎 LinkedIn: Vichem JSC
🌐 Website: www.vichem.vn
📌 Facebook: Vichem JSC
