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High-Quality Styrene-Ethylene/Butylene Block Copolymer from Top China Suppliers and Factory
| Styrene-Ethylene/Butylene block copolymer | |||
| CATEGORIES | GRADE | APPLICATION | OPERATIONS |
| SEBS | LCY 7550 | Adhesives Asphalt modification Compounding |
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| SEBS | LCY 7551 | Adhesives Asphalt modification Compounding |
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| SEBS | LCY 7554 | Adhesives Asphalt modification Compounding |
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| SEBS | CH510 | Compounding | Inquiry |
| SEBS | CH520 | Compounding | Inquiry |
| SEBS | CH540 | Compounding | Inquiry |
| SEBS | YH-501T | Adhesives Coating Compounding |
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| SEBS | YH-502T | Adhesives Coating Compounding |
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| SEBS | YH-503T | Adhesives Coating Compounding |
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| SEBS | YH-504T | Adhesives Coating Compounding |
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| 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
What is SEBS (Styrene-Ethylene/Butylene block copolymer)?
SEBS is a linear, transparent thermoplastic elastomer (TPE) block copolymer. It features a saturated mid-block (ethylene/butylene) that provides excellent UV, ozone, and heat resistance, making it ideal for durable outdoor and high-performance applications.
What are the main applications of SEBS block copolymer?
SEBS is widely used in plastic modification (as an impact modifier), adhesives (hot-melt adhesives and sealants), compounding for TPEs, toys and consumer goods (for soft-touch feel), and asphalt modification to enhance durability and elasticity.
Does SEBS offer good weathering and UV resistance?
Yes. Because of its saturated mid-block molecular structure, SEBS exhibits outstanding resistance to weathering, UV radiation, oxygen, and ozone degradation compared to unsaturated rubbers.
Can SEBS be blended with other plastics?
Yes, SEBS has excellent compatibility with engineering thermoplastics like polypropylene (PP) and polystyrene (PS), allowing it to easily blend and form high-performance polymer alloys.
What grades of SEBS are available for adhesives and compounding?
Common grades include LCY 7550, LCY 7551, LCY 7554, YH-501T, YH-502T, YH-503T, and YH-504T, which are highly suitable for adhesives, coatings, and compounding applications.
How does SEBS benefit asphalt modification?
In asphalt modification, SEBS improves the flexibility, low-temperature elasticity, and overall durability of asphalt binders, which is crucial for high-quality roofing and road paving.
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