1、Molecular Structure

2、physical and chemical properties

Nitrile rubber is a copolymer of acrylonitrile (CAN) and butadiene. The properties of nitrile rubber are mainly determined by the composition of CAN (usually 18% -50%), CAN content is higher than 50% Resistance to mineral oil and fuel, but its elasticity at low temperatures, the compression set rate of deterioration is worse; butadiene higher formula (such as 78%), it has good resistance to low temperature performance, but also sacrifice The oil resistance at high temperatures. In short, nitrile rubber has excellent oil resistance (oil, hydraulic oil, kerosene, etc.) and resistance to non-polar solvent properties, but also has good mechanical properties, wear resistance and air tightness. Suitable for petroleum hydraulic oil, glycol hydraulic oil, polyester oil, gasoline, water, silicone grease, silicone oil and other media used. Is the most widely used, the lowest cost rubber seal material. Not suitable for use in polar solvents such as ketones, ozone, nitrohydrocarbons, MEK and chloroform.

3、the temperature range

Extreme temperature: -40 ~ 120 ℃

General grade: -20 ~ 100 ℃

Low temperature level: -40 ~ 100 ℃, special formula of low temperature long-term use up to -55 ℃

High temperature range: -20 ~ 125 ℃ (air) -20 ~ 150 ℃ (oil)

4、hardness range

Shore A50 degrees to 93 degrees can be produced, the default hardness: 70 degrees

5、 color

Black, green, etc., can also be specified by the customer color

6、application

Nitrile rubber NBR is currently the most widely used, the lowest cost rubber seal material. In a variety of oil, wear-resistant environment is extremely common.

Because of its excellent oil resistance and physical and mechanical properties, widely used in the manufacture of a variety of oil-like plastic products, such as 0 ring, oil seals, cups, diaphragms, wear parts, pedunets, hoses, tubing, Diaphragm and large oil bag and fuel tank lined rubber, printing drum, tank lining, insulated floor board, oil sole, hard rubber parts, fabric coating, pipe thread protection layer, pump impeller and wire foreskin, adhesive, food packaging With thin film, rubber gloves and other fields.