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Nitrile Rubber (NBR)

Nitrile rubber is referred to as a rubber that is produced using a polymerization of acrylonitrile with butadiene and in the family of synthetic rubber.

 This type of rubber is usually abbreviated as NBR, but it is commonly known in the world as acrylonitrile-butadiene rubber, acrylonitrile rubber nitrile-butadiene rubber, as well as NR rubber.

 These rubbers are used in the production of many utilities and equipment or applications. In principle, nitrile rubber is produced at many rubber manufacturing units, which is why industrial nitrile rubber is one of the best types of synthetic rubber in the world.

According to statistics released in 2005, NBR rubber has about 368,000 metric tons annually, and is projected to reach 645,000 tons by the end of 2017 for nickel butadiene rubber.

What is Nitrile Rubber (NBR)?

NBR rubber or nitrile rubber, is a desirable rubber of high quality synthetic quality, made of copolymer of acrylonitrile (ACN) and butadiene. This type of rubber is known with chemical name as the acrylonitrile-butadiene copolymer.

 The high resistance to aliphatic hydrocarbon oils and fuels make this type of synthetic rubber in the ranks of the most important types of synthetic rubber. Although, these rubbers are produced in varying degrees depending on manufacturers and suppliers, and they are available on the market.

 The more acrylonitrile (ACN) is used in the production of nitrile rubber, the hardness and resistance of the rubber will increase against oil, but in the face of temperature and heat will be less flexible.

Nitrile synthetic rubber properties

 

NBR rubber has a very good resilience and a lot of wear resistance. This type of rubber has shown a modest ability to weathering and low aromatic oils resistance. Typically, nitrile rubber can be used well up to a temperature of -30 ° C, but some special and higher NBR levels have the ability to be used at lower temperatures too. Below are some of the important features of the Nitrile Synthetic Rubber:

  • Nitrile rubber Types of synthetic rubber belong to the family of acrylonitrile and butadiene unsaturated copolymers
  • Different polymer combinations of acrylonitrile determine the chemical and physical properties of nitrile rubber.
  • Nitrile synthetic rubbers are produced in varying degrees. In this regard, the higher the amount of acrylonitrile inside the polymer in rubber production, the better its resistance to the oil.
  • Good resistance to chemicals and fuels
  • Ability to withstand different temperatures depending on their composition
  • It’s less flexible and less restrictive than natural rubber
  • This type of rubber is also good against aliphatic hydrocarbons
  • Nitrile or NBR rubbers do not have very high resistance to ozone, aromatic hydrocarbons, ketones, esters and aldehydes.
  • Although they have a lot of elasticity and weariness, they have a moderate resistance.
  • There is little resistance to weathering
  • Nitrile rubber can be used up to -30 ° C degrees, but for lower temperatures, it should be used with more special versions.

Nitrile rubber use cases

nitrile Synthetic rubber or NBR are commonly used in industrial and automotive products, especially as workhorse of the rubber products.

 If a suitable elastomer is selected with the appropriate acrylonitrile content compatible with other materials, NBR rubber or nitrile can be used in many applications and production areas requiring oil, fuel, chemicals and etc.

 industries. In the automotive industry, NBR tires use water, hoses, seals and liquid drums to produce water. Due to the ability of nitrile rubber to tolerate a temperature range of -40 C to +125 C, this type of rubber is one of the best types of synthetic rubber in the production of automotive rubber.

 Also, because of the flexibility and resilience of these types of rubbers, they can be used as optimum rubber for the preparation of disposable laboratory equipment, cleaning tools. Examination briefcases.

Industrial use of NBR rubber or nitrile rubber

Nitrile rubber is widely used in the production of industrial equipment and goods, some of which are:

  • Production of roll coating
  • Production of various types of hydraulic hoses
  • Conveyor belt production
  • Types of products in the field of graphic arts
  • Packaging items in oilfields
  • Production of sealing equipment for all types of home appliance as well as plumbing types
  • The use of injection dosing or transferring products is molded
  • Manufacture of tubes or extruded hoses
  • The production of Calendered sheet goods and industrial flooring mats in the form of glossy coated sheets
  • Production of various sponge goods

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