Butyl Rubber (IIR)
When copolymer of isobutylene is combined with a little of isoprene, it can be used to make butyl rubber, and in fact it should be called butyl rubber, the chemical name of isobutylene Isobutylene-isoprene copolymer, which is also referred to as polyisobutylene.
In 1943, this type of rubber was first manufactured industrially. this type of rubber is the result from low levels of unsaturation between long polyisobutylene segments, whose initial quality of this type showed that this butyl rubber has a high permeability or retentions an air and high elasticity and flexibility.
Initially, the greatest use of this rubber was used in the production of tire inner tubes, and this type of rubber also plays an important role in the production of tire tubes yet.
How is butyl rubber processed and vulcanized?
In order to have a useful and durable end use product, in most products and applications, the butyl rubber must first be compounded and then vulcanized, although this is also done for other synthetic rubbers.
Butyl rubber has a range of different levels that have been developed for use in a variety of applications and their processing, and this is why a wide range of these types of rubber with a varying molecular weight, different unsaturation and ultimately different cure rates Available in industrial markets. Whether you want to use butyl rubber at the end use properties and the processing equipment, both determine the exact type and grade of butyl rubber used in certain products.
In addition, the correct selection of the proper filler ratios, stabilizers, processing tools and curatives play a crucial role in the composition and performance of the product.
Characteristics and advantages of butyl rubber
- Butyl rubber are highly flexible
- This type of rubber has a little glass transition temperature
- have very good resistance to ozone
- Butyl rubber is a synthetic rubber that is resistant to various weather conditions, heat and chemicals.
- In times of ambient temperature, this rubber has a good displays high damping
- This type of rubber vibration damper is perfect
- Biocompatible rubbers are considered, and so on
