Styrene Butadiene Styrene Block Copolymer (SBS) Product Description
Styrene Butadiene Styrene (SBS) is a thermoplastic elastomer that combines the properties of rubber with the processing advantages of thermoplastics. It is composed of polystyrene and polybutadiene blocks, which provide excellent elasticity, resilience, and durability. SBS is known for its high tensile strength, flexibility, and resistance to UV light and weathering, making it an ideal material for various applications across multiple industries.
Key Features:
- Elasticity: SBS exhibits excellent stretch and recovery properties, making it suitable for applications requiring flexibility.
- Thermal Stability: It maintains its properties over a wide temperature range, ensuring performance in diverse environments.
- Chemical Resistance: SBS is resistant to many chemicals, oils, and solvents, enhancing its durability in harsh conditions.
- Easy Processing: The thermoplastic nature of SBS allows for easy processing through conventional methods such as extrusion and injection molding.
Common Uses:
- Adhesives: Used in hot melt adhesives for packaging, construction, and automotive applications.
- Sealants: Ideal for sealants in construction and automotive industries due to its weather resistance.
- Footwear: Employed in the production of soles and other components in footwear for enhanced comfort and durability.
- Road Marking: Utilized in road marking paints for its excellent adhesion and weather resistance.
- Medical Devices: Used in various medical applications due to its biocompatibility and flexibility.
Technical Data
| Property | Value |
|---|---|
| Chemical Structure | Styrene-Butadiene Block Copolymer |
| Density | 0.9 – 1.0 g/cm³ |
| Hardness (Shore A) | 30 – 80 |
| Tensile Strength | 10 – 25 MPa |
| Elongation at Break | 300 – 800% |
| Glass Transition Temperature (Tg) | -60°C to -50°C |
| Thermal Decomposition Temperature | 300°C – 350°C |
| Processing Temperature | 180°C – 230°C |
| Solubility | Soluble in aromatic hydrocarbons, ketones, and some esters |
| Applications | Adhesives, sealants, footwear, road marking, medical devices |
Summary
Styrene Butadiene Styrene Block Copolymer is a versatile material that offers a unique combination of rubber-like properties and thermoplastic processing capabilities. Its wide range of applications, from adhesives to medical devices, highlights its importance in modern manufacturing and product development. With its excellent mechanical properties and resistance to environmental factors, SBS continues to be a preferred choice in various industries.