Polyisobutylene/CAS:9003-27-4
Short Description:
Product Name: Polyisobutylene
Type:ZA-Y
CAS:9003-27-4
MF:C4H8
MW:56.10632
STRUCTURE:
Specification
|
Item |
Specification |
| Melting point | 54-56 °C |
| Boiling point | 300 °C |
| Density | 0.92 g/mL at 25 °C (lit.) |
| Refractive index | n20/D 1.51 |
| Form | Slab/chunk |
| Color | Colorless or white |
| Stability | Stability Combustible. Incompatible with strong oxidizing agents. |
Usage
polyisobutene (hydrogenated) is an emollient.
Polyisobutylene, sometimes called butyl rubber, and other times PIB, is a vinyl polymer. It's very similar to polyethylene and polypropylene in structure, except that every other carbon is substituted with two methyl groups. It is made from the monomer isobutylene, by cationic vinyl polymerization.
Polyisobutylene is a synthetic rubber, or elastomer. It's special because it's the only rubber that's gas impermeable. That is, it's the only rubber that can hold air for long periods of time. You may have noticed that balloons will go flat after a few days. This is because they are made of polyisoprene, which is not gas impermeable. Because polyisobutylene will hold air, it is used to make things like the inner tubes, liner layers of tires, and the inner liners of basketballs.
Packaging and Shipping
180KG/Drum or as customer requirements.
Belongs to common goods and can deliver by ocean and air
Keep and storage
Shelf life:24 month from date of manufacture in original unopened packaging stored in a cool dry place out of direct sunlight, water.
Ventilated warehouse, Low temperature drying, Separated from oxidants, acids.
