Introduction of O - ring Oil Resistance Material

    Oil resistant hydraulic O-rings are classified according to oil resistance (polar rubber): CR, NBR, HNBR, ACM, AEM, CSM, FKM, FMVQ, CO, PUR.

Oil-resistant hydraulic O-ring classification (non-polar rubber): NR, IR, BR, SBR, IIR, EPR, EPDM.

Oil-resistant hydraulic O-ring of fuel resistance: fluorine rubber FKM and fluorine silicone rubber FMVQ resistance to the best fuel oil. While chloroprene rubber and chlorinated polyethylene rubber CPE fuel resistance of the worst.

The flame resistance of NBR increased with the increase of acrylonitrile content. Chlorohydrin rubber, fuel-resistant than nitrile rubber.

Oil resistant hydraulic O-ring resistance to mixed fuel: fluorosilicone rubber FMVQ and fluorine rubber FKM mixed fuel oil resistance to the best resistance. Acrylic rubber resistance to mixed fuel resistance is the worst. The blending resistance of NBR increased with the increase of acrylonitrile content. Fluorine rubber with high fluorine content has good stability to mixed fuel.

Oil-resistant hydraulic O-ring acid oxidation of the fuel: the acid oxidation of fuel, the acid oxidation of fuel hydrogen peroxide can deteriorate the performance of vulcanized rubber, so the fuel system commonly used nitrile rubber, chloroprene rubber Difficult to meet the requirements of long-term use. Only fluoroelastomers such as fluoroelastomer FKM, fluorosilicone rubber FMVQ, fluorinated phosphorus and hydrogenated nitrile rubber nitrile rubber performance is better.

Ordinary nitrile rubber compound, can not work in 125 degrees of acidic gasoline for a long time. Only the use of cadmium oxide activation of low sulfur - to the sulfur and white carbon black as the main raw material of nitrile rubber, in order to better acid-resistant gasoline. Increased acrylonitrile content, can reduce the permeability of acidic gasoline.