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China Suppliers of Styrene-Ethylene/Butylene Block Copolymer - Quality Products from Reliable 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:
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.
High Mechanical Strength
The material exhibits remarkable tensile strength, tear resistance, and abrasion resistance, resulting in durable and long-lasting end-products.
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.
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:
Plastic Modification
Used as an impact modifier and flexibilizer for rigid plastics, significantly improving toughness and soft-touch feel without sacrificing processability.
Adhesives
Serves as a key component in formulating high-performance, permanent hot-melt adhesives (HMAs) and sealants, providing strong cohesion and UV-stable bonding.
Compounding for Modification
Acts as a foundational material for producing customized thermoplastic elastomer (TPE) compounds tailored to specific hardness, color, and performance requirements.
Toys and Consumer Goods
Ideal for manufacturing safe, durable, and soft-touch items such as toys, grips, and handles.
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 is a linear, transparent thermoplastic elastomer (TPE) block copolymer. It features a saturated mid-block of ethylene/butylene, which gives it exceptional durability, flexibility, and resistance to environmental factors compared to unsaturated rubbers.
What are the primary applications of SEBS block copolymers?
SEBS is widely used in plastic modification (improving impact resistance and feel), formulating high-performance hot-melt adhesives, compounding for customized TPEs, manufacturing consumer goods/toys, and modifying asphalt to enhance durability.
Why does SEBS have superior weathering and heat resistance?
The chemical structure of SEBS contains a saturated ethylene/butylene mid-block. Because it lacks double bonds, it is highly resistant to oxidation, UV light, ozone, and thermal degradation, making it ideal for outdoor and high-temperature applications.
Is SEBS compatible with other plastics?
Yes, SEBS has excellent compatibility with various engineering thermoplastics, particularly polyolefins like polypropylene (PP) and polystyrene (PS). This makes it an ideal impact modifier for creating tough, flexible polymer blends.
How do I choose between the different SEBS grades listed (e.g., LCY or YH series)?
Different grades are optimized for specific applications. For example, LCY 7550/7551/7554 and YH-501T/502T/503T/504T are highly suited for adhesives and coatings, while grades like CH510 and YH-602T are tailored specifically for compounding. Please click the "Inquiry" button next to the desired grade to get detailed technical data sheets and expert recommendations.
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