Sulfurized isobutylene-high pressure synthetic lubricants are lubricants created from a mixture of sulfur, isobutylene and other synthetic additives. These lubricants are used in applications that require the performance of a synthetic lubricant at high pressures, such as those found in hydraulics or transmissions. They offer excellent resistance to oxidation, while providing superior wear protection and enhanced protection from rust and corrosion. They can be used in both high-temperature and low-temperature applications, making them suitable for a wide variety of applications.
Sulfurized Isobutylene-high pressures with high content of sulfur has excellent extreme pressure performance, good oil solubility, and light color.It has good compatibility with compounds containing phosphorus and relatively little corrosion to metal. This product is used for blending medium and high quality automobile and industrial gear oils, metalworking oil, gadder oils and grease.
Sulfurized Isobutylene-high pressure is a type of lubricant additive that is specifically designed for high-pressure applications. It is used to enhance the lubricating properties of oils, greases, and other lubricants in order to improve their performance under high pressure conditions.
The main component of sulfurized isobutylene-high pressure additive is sulfurized isobutylene, which is a compound derived from isobutylene gas. This compound is treated with sulfur to create sulfurized isobutylene, which is then used as an additive in lubricants.

Some of the key benefits of using sulfurized isobutylene-high pressure additive include:
- Extreme-pressure performance: The additive forms a protective film on metal surfaces, providing lubrication and protection even under extreme pressure conditions. This helps to reduce metal-to-metal contact and minimize wear and tear.
- Friction reduction: Sulfurized isobutylene-high pressure reduces friction between moving parts, which helps to enhance the overall efficiency of the lubricated system. This can result in improved energy efficiency and reduced operating costs.
- Oxidation resistance: The additive provides oxidation resistance to the lubricant, helping to prevent the degradation of oils and greases when exposed to high temperatures and pressures. This extends the service life of the lubricant and improves its overall performance.
- Corrosion protection: Sulfurized isobutylene-high pressure helps to protect metal surfaces from corrosion, which can occur when lubricants come into contact with moisture or other corrosive agents. This helps to maintain the integrity of the lubricated system and prevent costly damage.
- Anti-Wear Performance:In addition to EP properties, sulfurized isobutylene exhibits anti-wear characteristics. The additive helps protect critical engine components, such as gears and bearings, from wear and damage.
- Chemical Composition:
- Sulfurized isobutylene is derived from isobutylene, which is a branched-chain hydrocarbon. The sulfurization process involves introducing sulfur into the molecular structure, creating a compound with enhanced EP and anti-wear properties.
- High-Pressure Applications:
- Lubricants containing sulfurized isobutylene are commonly used in high-pressure applications such as gear oils, hydraulic fluids, and metalworking fluids. These applications often involve conditions where metal surfaces experience extreme loads.
- Film Formation:
- The sulfurized isobutylene forms a protective film on metal surfaces during operation. This film acts as a barrier, preventing direct metal-to-metal contact and reducing friction and wear.
- Temperature Stability:
- Sulfurized isobutylene additives are designed to provide stability at elevated temperatures, ensuring their effectiveness in applications where high temperatures may be encountered.
- Compatibility:
- Lubricant manufacturers carefully consider the compatibility of sulfurized isobutylene with other additives and base oils to ensure a well-balanced formulation. Compatibility is essential for achieving optimal performance and preventing any adverse effects on the lubricant.
- Regulatory Considerations:
- Users should be aware of any regulatory restrictions or specifications related to sulfur content in lubricants, especially in applications where emissions control systems may be present.
Sulfurized isobutylene-high pressure additive can be used in a variety of applications, including automotive engines, industrial equipment, hydraulic systems, and other high-pressure systems. It is typically added to lubricants at a recommended treat rate to achieve the desired performance benefits.
In summary, sulfurized isobutylene-high pressure is a lubricant additive that provides extreme-pressure performance, friction reduction, oxidation resistance, and corrosion protection. It is specifically designed for use in high-pressure applications where superior lubrication is required.
Sulfurized Isobutylene under High Pressure: Exploring its Significance
Sulfurized isobutylene, also known as SIB, is a versatile chemical used in various industrial applications. When subjected to high pressure, it undergoes specific reactions and transformations, leading to products with unique properties. Here’s an overview of its high-pressure behavior and significance:
Reaction under High Pressure:
- Under high pressure and with the presence of a catalyst, SIB undergoes sulfurization and condensation reactions. This results in the formation of complex polysulfide molecules with varying chain lengths and structures.
- The specific properties of the resulting product depend on various factors, including:
- Pressure: Higher pressure generally leads to higher molecular weight and viscosity.
- Reaction temperature: Temperature influences the degree of sulfurization and the distribution of polysulfide chain lengths.
- Catalyst type: Different catalysts can promote specific reaction pathways and product compositions.
Key Characteristics of High-Pressure Sulfurized Isobutylene:
- Excellent extreme pressure (EP) and anti-wear properties: The complex polysulfide structure forms a protective film on metal surfaces under high pressure and friction, reducing wear and tear on components.
- Good thermal stability: High-pressure SIB derivatives exhibit high resistance to thermal degradation, making them suitable for high-temperature applications.
- Friction modification: Certain formulations can exhibit friction-modifying properties, potentially improving fuel efficiency and reducing energy consumption.
- Solubility: Depending on the specific formulation, high-pressure SIB derivatives can have varying degrees of solubility in different oils and lubricants.
Applications of High-Pressure Sulfurized Isobutylene:
- High-performance lubricants: Widely used in high-performance gear oils, greases, and industrial lubricants for demanding applications involving high pressure, friction, and temperature.
- Metalworking fluids: Employed in some metalworking fluids to improve lubrication, reduce tool wear, and enhance machining performance.
- Fuel additives: Certain formulations can be used as fuel additives to improve lubricity and protect fuel pump components.
Compared to traditional SIB (synthesized at atmospheric pressure):
- High-pressure SIB generally offers better extreme pressure and anti-wear properties due to its complex polysulfide structure.
- High-pressure SIB can have higher viscosity, which might need to be considered for specific applications.
- Environmental aspects: Some high-pressure SIB formulations might contain sulfur-based components that raise environmental concerns when not disposed of properly.
Conclusion:
High-pressure sulfurized isobutylene offers valuable properties for enhancing lubrication performance in demanding applications. Its extreme pressure, anti-wear, and thermal stability make it a significant contributor to the development of high-performance lubricants and industrial fluids. However, factors like specific needs, environmental impact, and compatibility with other lubricant components should be considered when choosing high-pressure SIB or its derivatives.
Feel free to ask further questions about specific high-pressure SIB formulations, their performance compared to other lubricant additives, or any other aspect of its use in industrial applications!

