Styrene Butadiene Rubber (SBR)
The copolymer (copolymer) of styrene and butadiene, which has more than 50% of butadiene, is called Styrene Butadiene Rubber (SBR). The typical ratio of monomers is from 70% to 75% butadiene to 25% to 30% of styrene, and if the styrene is above 50%, the product is getting highly plastic and is used to produce latex.
This polymer is defined as a high-performance polymer, and it is the most consumable product in the world, due to the availability of cheap and abundant raw materials, with a good price, It has the highest volume of production in the rubber industry. Over 70% of SBRs are consumed in the tire industry, especially the tire, 15% in mechanical parts and about 10% in latex form.
Styrene Butadiene has different grades and varies depending on each grade, ranging from tire and rubber to the shoe and mechanical industries.
5 important property for the use of SBR in the rubber industry are:
1. Rupture resistance 2. Fatigue strength 3. Flex resistance 4. Abrasion resistance 5. Slip resistance (has the property of grappling with asphalt).
SBR typical applications:
- Mechanical goods
- Molded and extruded mechanical rubber goods
- Foot wear
- Light and dark colored mechanical goods.