Polyisobutylene CAS#9003-27-4

Description

Products Description of Polyisobutylene CAS#9003-27-4Polyisobutylene (PIB) is a non-toxic, water-white viscous liquid that exhibits excellent low-temperature flexibility due to its low glass transition temperature. It is a linear saturated polymer with a highly flexible molecular chain, which contributes to its superior elasticity and extensibility. PIB is recognized for its high chemical stability and can be tailored to various applications by adjusting its molecular weight, ranging from low to high molecular weights with viscosities varying from 5 to 4,700 cSt @ 100°C. The higher the viscosity and molecular weight, the stronger the tackiness of the product.

Physical Properties:

• State: Liquid or semi-solid depending on molecular weight
• Color: Water-white to pale yellow
• Odor: Slight characteristic odor or odorless
• Viscosity: Varies with molecular weight; typically from 5 to 4,700 cSt @ 100°C
• Density: Approximately 0.92 g/mL at 25 °C
• Solubility: Soluble in hydrocarbons, aromatics, gasoline, cycloalkanes, mineral oil, chlorinated hydrocarbons, and carbon disulfide; partially soluble in higher alcohols and esters; insoluble in water, lower alcohols like methanol, ethanol, isopropanol, ethylene glycol, ketones like acetone, and glacial acetic acid.

Applications:

• Lubricants: Used in 2-stroke engine oils, gear oils, greases, hydraulic and metalworking fluids.
• Adhesives: Employed in pressure-sensitive (PSA) or hot melt adhesives (HMA).
• Sealants: Utilized in automotive, window, and tire sealants.
• Stretch Wrap: Improves tear resistance and is suitable for food contact.
• Electrical Insulation: Provides hydrophobic insulation with no electrical conductivity or oxidation.
• Cosmetics and Food: Used in gum base-grade applications due to its non-toxic nature.

Safety and Handling: Polyisobutylene is considered non-toxic, but proper handling procedures should be followed to minimize health and environmental risks. It should be stored in a cool, dry place away from incompatible materials such as strong oxidizing agents and excessive heat. Personal protective equipment, including gloves and safety goggles, is recommended when handling PIB.

Shelf Life: Under proper storage conditions, the shelf life of Polyisobutylene is a minimum of 36 months.

Key Benefits:

• High tackiness with excellent viscosity-index.
• Superior corrosion and oxidation stability against heat, reagents, and UV rays.
• Completely hydrophobic with extremely low electrical conductivity.
• Easy to store with no evaporation or solidification issues.

Polyisobutylene is a versatile polymer with a wide range of industrial applications, offering excellent performance in various environments and conditions.