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China Suppliers Styrene-Ethylene/Butylene Block Copolymer - High-Quality Products from Trusted Factory
| Styrene-Ethylene/Butylene block copolymer | |||
|---|---|---|---|
| Categories | Grade | Application | Operations |
| SEBS | LCY 7550 | Adhesives, Asphalt modification, Compounding | Inquiry |
| SEBS | LCY 7551 | Adhesives, Asphalt modification, Compounding | Inquiry |
| SEBS | LCY 7554 | Adhesives, Asphalt modification, Compounding | Inquiry |
| SEBS | CH510 | Compounding | Inquiry |
| SEBS | CH520 | Compounding | Inquiry |
| SEBS | CH540 | Compounding | Inquiry |
| SEBS | YH-501T | Adhesives, Coating, Compounding | Inquiry |
| SEBS | YH-502T | Adhesives, Coating, Compounding | Inquiry |
| SEBS | YH-503T | Adhesives, Coating, Compounding | Inquiry |
| SEBS | YH-504T | Adhesives, Coating, Compounding | Inquiry |
| SEBS | YH-602T | Compounding | Inquiry |
| SEBS | YH-604T | Compounding | Inquiry |
Material Characteristics
This product is a linear, transparent block copolymer of the Styrene-Ethylene/Butylene-Styrene (SEBS) type. Its molecular structure is engineered to deliver a high-performance profile, characterized by the following key properties:
(1) Excellent Weathering and Heat Resistance
The saturated mid-block (ethylene/butylene) provides outstanding resistance to degradation from ozone, oxygen, and UV radiation, ensuring long-term stability in outdoor applications. It also maintains its properties at elevated temperatures, offering good heat resistance.
(2) High Mechanical Strength
The material exhibits remarkable tensile strength, tear resistance, and abrasion resistance, resulting in durable and long-lasting end-products.
(3) Good Compatibility with Plastics
It demonstrates excellent compatibility with a wide range of engineering thermoplastics, such as polypropylene (PP) and polystyrene (PS), facilitating easy blending for the creation of polymer alloys with enhanced characteristics.
(4) Clarity and Flexibility
The linear structure contributes to its transparency, while simultaneously providing high elasticity and excellent low-temperature flexibility.
Material Application
Owing to its robust set of properties, this SEBS copolymer serves as a versatile modifier and base polymer across diverse industries. Its primary applications include:
(1) Plastic Modification
Used as an impact modifier and flexibilizer for rigid plastics, significantly improving toughness and soft-touch feel without sacrificing processability.
(2) Adhesives
Serves as a key component in formulating high-performance, permanent hot-melt adhesives (HMAs) and sealants, providing strong cohesion and UV-stable bonding.
(3) Compounding for Modification
Acts as a foundational material for producing customized thermoplastic elastomer (TPE) compounds tailored to specific hardness, color, and performance requirements.
(4) Toys and Consumer Goods
Ideal for manufacturing safe, durable, and soft-touch items such as toys, grips, and handles.
(5) Asphalt Modification
Enhances the flexibility, elasticity, and durability of asphalt binders used in roofing and paving applications.
Frequently Asked Questions (FAQ)
What is Styrene-Ethylene/Butylene block copolymer (SEBS)?
SEBS (Styrene-Ethylene/Butylene-Styrene) is a linear, transparent block copolymer. It is a thermoplastic elastomer (TPE) produced by hydrogenating SBS, which eliminates double bonds to provide excellent UV, weathering, and heat resistance.
Which SEBS grades are best for adhesive formulations?
Grades such as LCY 7550, LCY 7551, LCY 7554, YH-501T, YH-502T, YH-503T, and YH-504T are highly recommended for adhesives. They offer strong cohesion, high flexibility, and UV-stable bonding properties.
Why does SEBS exhibit superior weathering and UV resistance?
The saturated mid-block (ethylene/butylene structure) of SEBS lacks double bonds, making it highly resistant to degradation from ozone, oxygen, heat, and UV radiation compared to unsaturated polymers.
Is SEBS compatible with other engineering plastics?
Yes, SEBS has excellent compatibility with various thermoplastics, especially polypropylene (PP) and polystyrene (PS). This makes it an ideal impact modifier and flexibilizer for creating specialized polymer alloys.
How do I choose between LCY and YH series SEBS grades?
The choice depends on your specific application requirements: LCY grades (like 7550, 7551, 7554) are widely used for compounding, adhesives, and asphalt modification. YH grades (like YH-501T through YH-604T) are optimized for compounding, adhesives, and coatings. Click the "Inquiry" button on our product table to consult our experts for custom recommendations.
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