What is the difference between NBR and Nitrile? Many people may wonder about this question as both NBR (acrylonitrile-butadiene rubber) and Nitrile are often used interchangeably in various industries. However, there are subtle differences between the two materials that are important to understand.
NBR is a type of synthetic rubber that is made from a copolymer of acrylonitrile and butadiene. On the other hand, Nitrile, also known as Nitrile rubber, is a general term that encompasses various types of synthetic rubber that contain a high percentage of acrylonitrile. The key difference between NBR and Nitrile lies in the acrylonitrile content. NBR typically contains a lower acrylonitrile content (usually between 18-50%) compared to Nitrile, which has a higher acrylonitrile content (usually above 50%).
The acrylonitrile content in the rubber greatly affects its properties. NBR with a lower acrylonitrile content has better resistance to oil, grease, and abrasion, making it ideal for applications in the automotive and industrial sectors. On the other hand, Nitrile with a higher acrylonitrile content has superior resistance to chemicals, fuels, and solvents, making it suitable for use in fuel hoses, gaskets, and seals.
In terms of flexibility and durability, NBR is known for its high resilience and excellent tear resistance, while Nitrile offers better heat resistance and compression set properties. These differences in properties make each material suitable for specific applications, and it is essential to choose the right material based on the requirements of the application.
In conclusion, while NBR and Nitrile are often used interchangeably, they are not the same. The key difference lies in the acrylonitrile content, which affects the materials' properties and applications. Understanding these differences can help manufacturers select the most appropriate material for their specific needs, ensuring optimal performance and durability in their products.
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