What are the advantage of polybutadiene rubber?

What are the advantage of polybutadiene rubber?

The high abrasion resistance and resistance to cracking of butadiene rubber has caused it to be used in most of the tire tread compounds. It is most widely used in the manufacture of tires for passenger cars, trucks and racing cars. Also, tire treads are made of polybutadiene copolymers. Butadiene rubber is used in the manufacture of shoes, belts and conveyor belts, rubber sponges, hoses and gaskets, golf balls.

Advantages of polybutadiene rubber

  • Water resistance
  • Resistance to bending cracks
  • Resistance to weathering
  • Abrasion Resistance
  • Resistance to sunlight
  • Low temperature flexibility
  • The meaning of pressure
  • Tear resistance
  • Impermeable to gases
  • Impact resistance
  • Resistance to shear growth
  • Resistance to alcohols
  • Resistance to acids
  • Resistance to alkalis
  • Oxidation resistance

Disadvantages of polybutadiene rubber

  • Heat resistance
  • It does not have low ignition delay
  • Low resistance to oil and gasoline
  • Unfavorable processability
  • Low resistance to ozone

Remarks: This rubber has properties similar to natural rubber NR, isoprene and SBR and has the lowest glass transition temperature (except for silicones) and performs well at low temperatures even up to -60 degrees. To obtain the desired properties, it is mainly used as an alloy with other rubbers. For example, the mixture of BR, SBR in rubber is the right combination that is used today, BR because of resistance to tearing and cracking and SBR to optimize friction in the tire. Polybutadiene was one of the first elastomers or rubbers that was invented, 70% of produced polybutadiene is used to make rubber and tires, and 25% to 30% of it is added as an additive to other tires.


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