High molecular weight polyisobutylene succinimide (PIBSA) is a synthetic polymer composed of polyisobutylene and succinimide.
It is synthesized by copolymerization of succinimide and isobutylene monomers in an organic solvent and subsequently blended with other synthetic polymers or oils.
PIBSA is often used in the formulation of concrete admixtures, coatings, sealants, and oil and gas-well drilling fluids.
It is derived from hydrocarbon resources and is an effective dispersant for particles and materials suspended in a liquid medium, as well as a viscosity modifier and rheology control agent for lubricants and drilling compounds.
Its excellent water-solubility makes it an ideal choice for formulating water-based products.
It is also an excellent tackifier for adhesives, and can be used to improve slip and release properties in many formulations.
In addition, PIBSA is used in emulsion polymerization to prepare various types of polymeric dispersions.
High Molecular Weight Polyisobutylene Succinimide is a high molecular weight ashless dispersant prepared from highly reactive isobutylene(Mn=2300) by thermal adduction process.
It has excellent dispersancy & solubilization effect on oil sludge and soot;
and can effectively control the increase of the engine oil viscosity .
It doesn’t contain chlorine.
Excellent dispersancy of oil sludge at low temperature
Excellent soot dispersancy
Good detergent dispersancy
Free of chlorine
Used for blending API SG and higher grade gasoline engine oils
Used for blending API CF-4 and higher grade diesel engine oils
Particularly suitable for blending environment-friendly engine oils
High Molecular Weight Polyisobutylene Succinimide (HMPBSI) is a type of lubricating oil additive that is used to improve the performance of lubricants. It is made by reacting polyisobutylene with maleic anhydride, and then further reacting the resulting product with an amine compound.
HMPBSI is primarily used as a dispersant in lubricating oils. It helps to keep contaminants, such as soot, dirt, and sludge, suspended in the oil and prevents them from building up and causing damage to the engine or other components. By dispersing these contaminants, HMPBSI helps to improve the overall cleanliness and efficiency of the lubricant.
In addition to its dispersant properties, HMPBSI also acts as an antiwear additive. It forms a protective film on metal surfaces, reducing friction and wear, and extending the lifespan of the lubricated parts. This can help to improve the performance and longevity of engines and other mechanical systems.
HMPBSI is particularly effective at operating in high-temperature environments, making it suitable for use in engines and other applications that generate a lot of heat. It can withstand high temperatures without breaking down or losing its performance, ensuring that the lubricant continues to provide effective protection and lubrication.
Overall, High Molecular Weight Polyisobutylene Succinimide is a valuable additive for lubricating oils. Its dispersant and antiwear properties help to keep engines and other mechanical systems clean and protected, improving their performance and lifespan.