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China Suppliers of Styrene-Ethylene/Butylene Block Copolymer from Trusted Factory for Superior Quality Products
| 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 is a linear, transparent thermoplastic elastomer (TPE) block copolymer. It features a saturated ethylene/butylene mid-block that provides superior UV, ozone, and heat resistance compared to unsaturated block copolymers.
What are the primary applications for SEBS grades like LCY 7550 and YH-501T?
These grades are highly versatile and primarily used in hot-melt adhesives, asphalt modification, plastic compounding, coatings, and manufacturing soft-touch consumer goods like toys and grips.
How does SEBS improve the properties of rigid plastics?
When blended with engineering plastics like polypropylene (PP) or polystyrene (PS), SEBS acts as an impact modifier. It increases toughness, flexibility, and provides a premium soft-touch texture without impacting processability.
Why is SEBS preferred for outdoor applications?
Thanks to its saturated mid-block structure, SEBS offers outstanding resistance to UV radiation, weathering, ozone, and oxidation. This chemical stability prevents degradation and maintains performance over long-term outdoor exposure.
Can SEBS be used for transparent applications?
Yes. The linear molecular structure of this SEBS copolymer allows for excellent optical clarity and transparency, making it suitable for clear compounds, toys, and specialized packaging.
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