Whats is Polybutadiene rubber?
The PBR rubber Polybutadiene compound is a synthetic rubber. Polybutadiene rubber is a polymeric compound that is formed from the polymerization reaction of units 1 and 3 of butadiene. PBR is the fourth most widely used chemical in the world in 2012.
PBR materials are widely used in the rubber industry and in the plastics industry. These materials are used in the tire industry to make car tires, and it is interesting to know that more than 70% of Polybutadiene materials are used in this field. Polybutadiene has a high resistance to tearing and therefore has a wide range of applications in the rubber industry.
25% of it is used in plastic industry. In this area, PBR materials are added to plastics to enhance the mechanical properties of plastics.
It is also used as a rubber pad between bricks and railroad tracks.
Process quality is more important than the use of plastic materials than their use in tires. This is especially important when it comes to tire color and odor stability. That is why the standards of the rubber industry cover all these factors.
Features and properties of polybutadiene:
- The rubber is solid, light yellow, insoluble in water and odorless.
- Melts at high temperatures. It should not be exposed to oxidants.
- The storage temperature of these materials should not be higher than 30 ° C and it can also be stored for one year.
- If decomposed by heat, carbon dioxide and oxygen will be produced, which reduces the oxygen in the air.
- These PBR materials are produced and supplied by petrochemicals in packages with different weights.
What are the uses of polybutadiene rubber?
Polybutadiene rubber is used as a raw material to make the core of sandblasting equipment hoses with natural rubber. This type of industrial application is one of the most important and main applications for this material, because the sandblasting process is performed at extremely high pressure; Therefore, the rubber hose body must have sufficient durability and high strength. It can also be used to cover pneumatic and water flow hoses.
Another application of Polybutadiene rubber is to be used as a rubber pad between bricks and railroad tracks. Polybutadiene rubber can be added to the mixture with nitrile rubber, thus increasing the resistance of nitrile rubber to the effects of oil and fat.
One of the most attractive uses of Polybutadiene rubber is to use it as a raw material for making golf balls. These balls have a plastic structure and are designed in such a way that the central core of the ball is made of Polybutadiene rubber and the surrounding layer is surrounded by protective materials.
Chemical properties and safety data sheet of polybutadiene rubber
Polybutadiene rubber is a solid, light yellow synthetic rubber. This composition is odorless. The melting point of this material is above 150 ° C. The compound catches fire at 332 ° C. The density of Polybutadiene at 20 ° C is equal to 0.9 g / cm3.
This polymer compound is insoluble in water but soluble in other organic solvents such as hexane, toluene, benzene, chloroform and tetrachloride.
Polybutadiene rubber is stable under normal conditions, but it melts at very high temperatures. Polybutadiene polymeric storage packages should not be exposed to oxidizing agents. The compounds associated with this substance are butadiene and carbon dioxide, both of which are dangerous to health.
Polybutadiene rubber does not pose a risk to the environment, but if it comes in direct contact with the eyes and skin, the polymer particles can cause severe irritation along with redness and pain in the area of contact. People who come in contact with this substance should use special work clothes.
When Polybutadiene rubber is decomposed by heat, it is released into the atmosphere in the form of oxygen-carbon and carbon dioxide, which reduces the amount of oxygen in space and will have very severe toxic effects on the body's cells, resulting in difficulty breathing. For this reason, contact with incendiary sources should be strictly avoided.
Packages containing Polybutadiene rubber are sold in bulk or packages of 1000 kg. These packages should be stored in dry and cool storeroom away from heat sources and other chemicals. Shipping standards must be observed when transporting packages containing this material.
Residues of this polymer arrangement should not be discharged into water and wastewater collections under any circumstances. Packages of this material should be placed on wooden pallets. Materials should be stored in packages made of polyethylene.
The storage temperature of these materials should not exceed 30 ° C. The standard for storing Polybutadiene rubber in storeroom is at least one year.
Market of polybutadiene In the Middle East
Export of Polybutadiene as one of the synthetic rubbers that has different applications in different industries. PBR Polybutadiene is one of the types of synthetic rubber that has different types. The use of this rubber is common in low temperature conditions due to its compatibility with low temperatures.
Advantages of polybutadiene:
- It has water resistance as well as abrasion resistance and significant impact resistance.
- Another advantage is its resistance to oxidation and to acids and bases.
- This tire also shows good flexibility at low temperatures.
Disadvantages of polybutadiene:
- Low heat resistance
- Low oil resistance
- Low resistance to gasoline
- Unfavorable process ability
The largest butadiene unit in the Middle East
With the launch of this unit, both the domestic need of the rubber industry for this material will be met and the production surplus will be exported to other countries. The sale of the products of this unit at today's price of butadiene in the world markets has an annual exchange rate of 103 million dollars for the country.
More than 50% of the units and more than 62% of the advanced parts of this complex are made in the country. $ 148 million has been invested in 4 years to build this unit. Most of the butadiene produced by this unit is exported to Japan, China and Taiwan. The butadiene produced by this complex will be used in the production of Polybutadiene rubber (PBR), styrene butadiene rubber (SBR) and acrylonitrile butadiene styrene (ABS). The feed of this complex is 245 thousand tons per year of four carbon compounds, which is supplied by Jam Petrochemical.