THE ENDLESS POSSIBILITIES OF RUBBER
Stryrene Butadiene (SBR)
The rubber: |
When first introduced the name Buna S was used (“Bu” for Butadiene”, “Na” for Sodium” and “S” for Styrene). SBR is a copolymere of styrene and butadiene and is developed as a alternative for natural rubber. |
Resistance and properties: |
SBR has a better properties where high temperatures are concerned. With suitable fillers it is a strong rubber although not approaching natural rubber of polychloroprene. Otherwise it has similar chemical and physical properties to natural rubber, with general better abrasion resistance. |
Downsides: | Poor fatique resistance (especially compared to natural rubber). This rubber is not advised to be used with low temperatures. |
Applications: |
SBR is used in the tyre industry and in shock isolators, but also in shoe heels and even in chewing gum. |