SBS

FULL NAME : Styrene-Butadiene-Styrene Block Copolymer

Product Specifications

 Properties

• Physical Character: Exhibits rubber-like high elasticity at room temperature and can be melt-processed at elevated temperatures, combining the properties of both rubber and plastic.

• Mechanical Properties: Excellent tensile strength and elastic recovery, wear and slip-resistant. Properties are significantly influenced by the styrene/butadiene ratio and molecular structure (linear or radial).

• Weather Resistance: Poor resistance to UV and ozone; requires stabilizers for outdoor applications.

• Processability: Thermoplastic elastomer; requires no vulcanization. Can be directly shaped by injection molding, extrusion, blow molding, etc. Scrap is recyclable.

Main Uses 

1.Footwear: 

• The classic application for shoe soles, offering excellent wear resistance, slip resistance, and lightness.

2.Asphalt Modification: 

• Significantly improves the high/low-temperature performance, rutting resistance, and fatigue resistance of asphalt for high-grade roads and waterproof membranes.

3.Polymer Modification: 

• Used as a toughening agent, widely blended with plastics like PP, PS, HDPE to improve impact resistance.

4.Adhesives & Sealants: 

• Used in pressure-sensitive adhesives, hot-melt adhesives, and sealants, known for strong initial tack and good holding power.

5.Consumer Goods: 

• Used in soft-touch components like toys, grips, stationery, and utensil handles.

6.Medical Devices: 

• Used in drip chambers, infusion tubes, seals, etc., requiring medical-grade grades.