THE ENDLESS POSSIBILITIES OF RUBBER

Polybutadiene (BR)

The rubber:Polybutadiene (BR) is the second most produced rubber in the world, next to SBR (Styrene Butadiene Rubber). In 1999 the production already increased to 1.952.000 cubic tons worldwide.
Resistance and properties:

Butadiene rubber has a strong resistance to low temperatures. It has a low Tg (Glass Transition temperatures) in the region of – 75 degrees Celsius to – 100% degrees Celsius. This rubber has good flexibility and low hysterisis at ambient temperatures and these properties are maintained to temperatures well below zero.

Downsides:

Butadiene rubber has poor “wet traction” qualities as a result of the low Tg. This can be improved by combining BR with other elastomeres such as natural rubber or SBR.

Applications:

Butadiene rubber is used in car tyres, treads, side walls and in compounds as a blend with natural rubber and SBR.