PB2400
Polybutene
CAS: 9003-28-5
Molecular Formula: C4H8
PB2400 - Names and Identifiers
| Name | Polybutene |
| Synonyms | PB2400 Polybutene POLY(1-BUTENE) Poly-alpha-butylene poly(ethylethylene) POLY(1-BUTENE), ISOTACTIC 1-butene polymer (polybutene) |
| CAS | 9003-28-5 |
PB2400 - Physico-chemical Properties
| Molecular Formula | C4H8 |
| Molar Mass | 56.10632 |
| Density | 0.91g/mLat 25°C(lit.) |
| Melting Point | 104 °C |
| Appearance | pellets |
| Odor | Data not available. |
| Stability | Stable. Incompatible with strong oxidizing agents. |
PB2400 - Risk and Safety
| WGK Germany | 3 |
PB2400 - References
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| high molecular inert polymer | polybutene (Polybutylene,PB) is a kind of high molecular inert polymer, which is mainly polymerized by butene and is a high molecular homopolymer. Compared with other polyolefins: 1, it has rigidity. 2, higher tensile strength. 3, good heat resistance. 4. Anti-chemical corrosion In oils, detergents and other solvents, it will not produce embrittlement like other plastics such as HDPE. It will only be embrittlement under strong oxidants such as 98% concentrated sulfuric acid. 5, excellent creep resistance. 6, has the same wear resistance as ultra-high molecular polyethylene. |
| Use | Although the formula of polybutene may be different in the molecular weight of the polymer, polybutene refers to a relatively low molecular weight polymer, It is a liquid at room temperature and pressure. Polybutene is often used as a chemical intermediate and sealant for plasticizers, adhesives, gasoline additives. Although people have found that polybutene is used to improve the adhesion, rust and water resistance of coatings, it is also often used in the formulation of cosmetics such as lipstick. |
| Preparation method | A preparation method of polybutene, comprising: selective hydrogenation of diolefins in a C4 hydrocarbon component produced by an oil refinery or naphtha cracking center involved in cracking crude oil, and simultaneous isomerization of 1-butene to 2-butene, and then separation of isobutene feedstock by fractionation; and the polymerization of the isobutylene feedstock obtained by fractionation. |
Last Update：2024-04-09 21:04:16
