Arlanxeo SBR

Informacije o brendu

Emulsion SBR
Emulsion styrene butadiene rubbers have a macrostructure with high polydispersions and a low to medium degree of branching. These features make them excellent processing grades allowing a high filler loading incorporation in rubber compounds. Provided that the compounds are formulated and processed correctly, the vulcanizates produced with these rubbers have excellent resistance to reversion, and good flexibility at low temperatures, while still maintaining outstanding resilience and abrasion resistance. Buna® SE is used in order to achieve excellent resistance to wear and tear besides high resistance to cracking. It processes easily in extrusion and calendaring, due to its particular macrostructure. It is used in tyres, retreads, conveyor belts, piping, hoses, tubings, carpets, moulded products in general and shoe soles.
Solution Vinyl Styrene
Solution vinyl styrene butadiene rubbers have a modified microstructure with a higher vinyl content than for example Buna® SL grades. Their vinyl and styrene contents increase the Tg values which result in an excellent balance of important properties in tyre compounds like handling, traction and rolling resistance, provided that the compounds are formulated and processed correctly. Due to our vast experience with these types of synthetic rubbers, ARLANXEO can offer a broad portfolio of different types of S-SBRs with a wide range in microstructure (vinyl/styrene), varied types of coupling, adjusted glass transition temperature (Tg), targeted functionalities and Mooney viscosity values. Vulcanizates prepared with these rubbers have excellent resistance to reversion and a distinguished resilience, while keeping flexibility at relatively low temperatures. Buna® VSL Solution SBR’s are widely used in passenger tyre tread formulations and in particular, high performance tyre treads. High vinyl grades, high styrene grades or blends of both are selected depending upon the application requirements of the tyre for example, all season tyres, winter tyres or summer tyres. By selecting the correct grade for each of these applications, grip and rolling resistance is enhanced, both being important features on tyre labels all over the world. Our offering of TDAE oil extended grades allows for very high molecular weights in the rubber which is vital for excellent treadwear resistance combined with easy processing. Blending with Buna CB Neodymium Butadiene Rubber will improve rolling resistance and treadwear resist- ance further to optimise the balance of properties required in the tyre.
Solution Styrene
Provided that the compounds are formulated and processed correctly, the vulcanizates have superior resistance to reversion. The low temperature flexibility, resilience and abrasion resistance depend on the polymer’s styrene and vinyl content. The low vinyl content provides a low Tg which gives an excellent low temperature flexibility, abrasion resistance and low rolling resistance. Buna® SL has excellent properties in the manufacture of tyres, retreads, moulded technical parts, injected or extruded goods, surgical goods, shoe soles and automotive industry parts. In tyre manufacture it is blended with NR, BR or E-SBR.
Functionalised Solution Styrene
The Buna® FX product group is a brand new family of high performance solution styrene butadiene rubbers (S-SBR) that compliments the popular Buna® VSL family. This grade has been functionalised with polar groups to increase the interaction with silica fillers. This reduces the hysteresis inside the tread compound thus reducing the rolling resistance of the tyre. Traction indicators are also improved. The first grade – Buna® FX 3234A-2 HM – has a Mooney Viscosity of 80 after the addition of 37,5 phr of TDAE oil. The high Mooney imparts excellent treadwear performance. The high styrene content set at 34% imparts a high level of dynamic stiffness making the grade especially suitable for high performance summer tires. The glass transition temperature of the product is -30°C.