Nitrile butadiene rubber product is a copolymer obtained by emulsion polymerization of butadiene and acrylonitrile.
The properties of nitrile rubber products are as follows:
1. High stability to non-polar or weak polar mineral oil, animal and plant oil, liquid fuel, and solvent. Oil resistance is its greatest strength. The higher the acrylonitrile content, the better.
2. The heat resistance is better than natural rubber products, styrene butadiene rubber products, neoprene rubber products.
3. Good air tightness. Only with butyl rubber products.
4. Poor cold tolerance.
5. Because of the non-crystalline rubber products, raw rubber strength is low, it is necessary to add reinforcing agent to improve the wear resistance, but the elasticity decreases.
6. Poor dielectric property, belonging to semiconductor rubber products
7 rubber oil resistance and permanent deformation balance.
General requirements with nitrile rubber products:
The principle of matching with natural rubber products, styrene butadiene rubber products are similar, the vulcanization accelerator vulcanization system can also be low sulfur, sulfur sulfide system or peroxide vulcanization. Reinforcing filler must be added. Spray carbon black material has good process performance, light colored products are used white carbon black, hard clay, macromolecular cohesion is larger. Therefore, high viscosity, poor workability, adding plasticizer, softener can reduce viscosity, improve the process performance and vulcanized rubber low temperature performance.
Nitrile rubber products use:
Mainly used in the production of oil resistant rubber products, widely used in the manufacture of seals, gaskets and so on.
