Rubber Sealing Material: Characteristics Of Nitrile Rubber
Dec 22, 2021
Rubber sealing material: characteristics of nitrile rubber
Hydraulic sealing materials of rubber seals Common sealing materials include metal
sealing materials, PTFE, synthetic rubber, flexible graphite sealing materials,
etc. Among them, synthetic rubber sealing materials include styrene-butadiene
rubber, neoprene, and silicone rubber. , Ethylene-propylene rubber, fluorine
rubber, nitrile rubber sealing material, etc. are all synthetic rubber sealing
materials.
The medium and characteristics of synthetic rubber "nitrile rubber" in the rubber
seal material:
The nitrile rubber of synthetic rubber in the rubber seal material is
the sealing material used for common rubber seals, because the nitrile rubber seal
material has excellent oil resistance and aging resistance, and also has good wear
resistance. Its performance is related to the content of acrylonitrile. The content
of acrylonitrile is high, so it has good oil resistance. Its strength, hardness,
wear resistance and water resistance increase, but its corrosion resistance,
elasticity and low temperature resistance deteriorate. The rubber seals are made of
NBR with high acrylonitrile content, and suitable nitrile rubber with high
acrylonitrile content should be synthesized according to the actual working
conditions of the medium.
Nitrile rubber has excellent corrosion resistance to mineral oils, animal and
vegetable oils, and aliphatic hydrocarbons, but it is worth noting that it is not
resistant to phosphate ester hydraulic oils, strong acids, aromatic hydrocarbons,
esters, ketones, ethers, halogenated hydrocarbons, etc. Abrasive media properties
of the media.
