Nitrile rubber (NBR) is an elastomer synthesized from acrylonitrile (ACN) and butadiene through emulsion polymerization. The acrylonitrile unit in its molecular structure provides polar cyano groups (-CN), imparting excellent oil resistance, solvent resistance, and abrasion resistance to the material.
Role of Acrylonitrile in NBR Latex
Improves Oil and Fuel Resistance
- The polar nitrile group (–C≡N) in ACN increases rubber polarity, making NBR latex resistant to hydrocarbons, oils, and fuels.
- Higher ACN content generally enhances oil resistance, but may reduce low-temperature flexibility.
Enhances Mechanical Strength
- Incorporation of ACN contributes to tensile strength, abrasion resistance, and hardness.
- Provides durability for industrial seals, gaskets, and hoses under high-stress conditions.
Adjusts Rubber Polarity and Compatibility
By controlling the ACN-to-butadiene ratio, manufacturers can tune the rubber's polarity, affecting adhesion to coatings, fillers, and plasticizers.
Why choose Gneebio?
Gneebio, with decades of experience in research, manufacturing, and marketing of organic chemicals, is one of the leading exporters of chemical products in Henan, China. Over the years, we have been committed to the chemical industries of intermediates, plastic additives, water treatment chemicals and fungicides, and daily chemicals.
Advantages
1) Small batch shipment and sub-packaging are available.
2). Provide COA, MSDS, Health Certificate, and Origin Certificate.
3) Quality first, service best.
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