Chloro butyl rubber
CIIR is a copolymer rubber of chloro isobutylene and isoprene. It has many of the attributes of butyl rubber, including low gas and moisture permeability, good vibration damping, low glass transition temperature, excellent resistance to ageing and weathering. Compared to butyl rubber, the chlorinated sites are more reactive, providing faster cure with lower amount of curatives and better adhesion to unsaturated rubbers and metals.
Specification of Chlorinated Butyl Rubber
|
Grades
|
Unit
|
1301
|
1501
|
|
Appearance
|
/
|
White or Amber Bales
|
|
Density
|
g/cm³
|
0.92
|
|
Mooney Viscosity
|
MU
|
38±5
|
50±5
|
|
ML(1+8)125℃
|
|
Volatiles
|
WT%
|
≤0.7
|
|
Antioxidant
|
WT%
|
Non-staining ≥0.02
|
|
Chlorine Content
|
WT%
|
1.2±0.2
|
|
Total Ash Content
|
WT%
|
≤0.5
|
Application of Chlorinated Butyl Rubber
Chloro butyl rubber CIIR has superior air impermeability, outstanding performance of heat-resistance, chemical corrosion-resistance, thermal aging resistance, and good curing performance. It can be widely used for tire inner liners, medical stoppers, corrosion-resistance lining, protective clothing, shoes production and TPV industry.
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