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[Chemical Knowledge]：NBR what material? Explore the characteristics and application of NBR products

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NBR, known as nitrile rubber, is a synthetic rubber. This rubber is a copolymer of styrene and acrylonitrile (ACN) to form a polymer with a stable chemical structure and excellent properties. In the polymer of NBR, the ratio of acrylonitrile to styrene is different, and its performance is also different. In this synthetic rubber, the higher the content of acrylonitrile, the better the elasticity of the rubber, but the mechanical strength will be reduced. On the contrary, the NBR material with a large content of styrene has high mechanical strength but poor elasticity.

NBR nitrile rubber has a smooth surface, black or white color, with oil, oil liquid chemical properties, it is widely used in industrial, automotive, electrical and electronic and medical equipment and other fields. Among them, oil resistance is one of the outstanding characteristics of NBR, usually, the service life in oil media is much higher than that of natural rubber.

Below we will discuss the advantages and applications of NBR in detail from two aspects: material characteristics and application areas.

1. excellent material properties

1, oil resistance: one of the main physical and chemical properties of NBR is oil resistance. Because NBR has good oil resistance in various non-polar liquid media (such as petroleum, gas oil, mineral oil, liquid alkane, etc.), it is widely used in various oil rings, sealing materials and other fields.

2. Abrasion resistance: NBR materials are more resistant to wear and tear than natural rubber. Because NBR rubber has relatively high hardness and strength, it has relatively good wear resistance, is not easy to damage, and has a long life.

3. Oxidation resistance: NBR has certain oxidation resistance and atmospheric resistance, and its service life is relatively long.

4. Low temperature performance: NBR is easy to age at high temperature, but at low temperature, NBR material performs well and can maintain good strength and toughness in an environment of minus 40°C.

2. a wide range of applications

1. Automotive industry: In the automotive industry, NBR rubber is widely used in various seals, oil rings, gaskets and other components, such as engines, fuel systems, lubrication systems, and brake systems Wait. The high elasticity and oil resistance of NBR are important factors for its wide application in the automotive industry.

2. Mechanical and electrical appliances: In the mechanical and electronic industries, NBR rubber is often used in insulating materials, sealing rings, cushions and other fields. NBR rubber can also be used to produce O-rings, U-rings, V-rings and other shapes of sealing rings.

3. Medical devices: NBR rubber can also be widely used in the pharmaceutical and medical industries to produce various medical device seals, infusion tubes and other accessories. Because NBR has good antibacterial properties, it is one of the important materials for the manufacture of medical devices.

NBR material as one of the important representatives of synthetic rubber, with certain oil resistance, wear resistance, toughness, oxidation resistance and other characteristics, is widely used in automotive, machinery, electrical appliances, medical equipment and other fields. With the continuous progress of science and technology, the application of NBR rubber products will become more and more extensive to meet the needs of different fields. Choosing the NBR product that suits your application scenario is expected to maximize its performance and help the development of industrial manufacturing.