CIIR rubber - Chlorobutyl rubber
CIIR Rubber - Chlorobutyl rubber (CIIR) is produced by chlorinating butyl rubber (IIR). Chlorobutyl rubber is the result of chlorinating butyl rubber with a degree of unsaturation of at least 1.8% mol. The chlorine content in chlorobutyl rubber ranges from 1.1% to 1.3%. In addition to the standard properties of butyl rubber (IIR), chlorobutyl rubber (CIIR) is distinguished by a better compression set. Furthermore, it can also be blended with other types of rubber.
What does CIIR abbreviation mean?
The abbreviation CIIR comes from the English language. It stands for chlorinated isobutylene isoprene rubber, which in Polish is chlorobutyl rubber.
The commercial names under which chlorobutyl rubber (CIIR) is known include:
- Lanxess Chlorbutyl
- ExxonTM Chlorbutyl
- Lanxess
- Exxon
Chlorobutyl rubber (CIIR) has the same applications as butyl rubber (IIR). It can be found in construction as well as in vulcanization. It is useful in the production of tires, inner tubes, and many other rubber elements. It is also used to make seals and insulators. Due to its resistance to high temperatures, it is used in the production of hoses for hot fluids. Rubber with a chlorine (CIIR) or bromine (BIIR) admixture stands out for its high processing properties. It does not age even with low air permeability.