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[Chemical Knowledge]：What are the upstream raw materials for polyisobutylene? What do the downstream products contain?

Read： 279 Time：12months ago Source：Transform the World with Simplicity

Polyisobutylene (Polyisobutylene, referred to as PIB) is a polymer compound, mainly composed of isobutylene monomer polymerization. In the field of chemical production raw materials, polyisobutylene has a wide range of applications, and its upstream and downstream related products are also quite rich. This article will detail the upstream and downstream associated products of polyisobutylene.

1. Upstream Associated Products

1. Isobutylene

Isobutylene is the monomer raw material of polyisobutylene, mainly from petroleum cracking and natural gas separation. Isobutene is chemically active and prone to polymerization, so it is an important raw material for the production of polyisobutene.

2. Catalyst

In the production process of polyisobutylene, it is necessary to use a catalyst to promote the polymerization reaction of isobutylene. Commonly used catalysts include aluminum chloride, boron trifluoride, and the like. These catalysts can increase the rate and selectivity of the polymerization reaction, thereby obtaining a polyisobutylene product with a uniform molecular weight distribution.

2. downstream associated products

1. Lubricating oil additives

polyisobutylene can be used as lubricating oil additives, can improve the viscosity and viscosity index of lubricating oil, improve lubrication performance. At the same time, polyisobutylene also has anti-oxidation, anti-wear, anti-corrosion and other properties, which can extend the service life of lubricating oil.

2. Rubber plasticizer

Polyisobutylene can be used as a rubber plasticizer, which can increase the flexibility and processability of rubber and improve the performance of rubber products. At the same time, polyisobutylene can also improve the adhesion between rubber and metal and expand the application range of rubber products.

3. Adhesive

Polyisobutylene can be used as an adhesive for bonding various materials. Because of its excellent water resistance, oil resistance, heat resistance and other properties, it is widely used in construction, automobile, aerospace and other fields.

4. cable material

polyisobutylene can be used as cable material for the production of wire and cable insulation layer and sheath layer. Because of its excellent electrical properties, mechanical properties and processing performance, it is widely used in the wire and cable industry.

In conclusion, as an important chemical raw material, polyisobutylene has a wide range of applications in the field of chemical production. Its upstream and downstream related products cover lubricant additives, rubber plasticizers, adhesives, cable materials and other fields, providing important support for the development of all walks of life.

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