1、physical and chemical properties

The hydrogenated nitrile rubber is obtained by selectively hydrogenating the butadienyl group in the nitrile rubber. The performance of the hydrogenated nitrile rubber depends on the CAN content (18% -50%) and the carbon bond saturation. The main features are: good heat resistance, organic peroxide curing material in 160 ℃ air can be used continuously for more than 1000 hours, and NBR at 150 ℃ will lose the continuous use of value; excellent oil resistance, fuel resistance and alcohol-based fuel performance Are better than the corresponding NBR and NBR / PVC blends; low temperature performance is better than NBR; ozone resistance and resistance to a variety of media (hot water, acid, alkali, alcohol) outstanding performance. Its mechanical properties are better than ordinary NBR, with good corrosion resistance, tensile, tear resistance and compression deformation.

2、the temperature range

General grade: -40 ~ 150 ℃ (TR10-22 ~ -24 ℃)

Low temperature range: -55 ~ 150 ℃ (TR10-35 ~ -37 ℃)

3、hardness range

Shore A50 degrees to 90 degrees

4、color

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

5、 application

Mainly used in automotive, petroleum, aerospace, air conditioning and refrigeration, nuclear power industry and other fields, such as for automotive oil seals, fuel system components, car belts, drilling and box holding mud with mud, printing and textile cots, aerospace seals Parts, shock absorbers, seals for nuclear components, and rubber parts for the production of oil wells, gas wells with anti-rioters, drill covers, plugs, valve seals, pump pistons, power cable jackets, rotary hoses and other rubber parts

1) the automobile industry

In recent years, in order to protect the environment, reduce the amount of lead in gasoline, increase the octane number of gasoline, foreign use of gasoline and methanol or ethanol mixed as fuel oil, or in the gasoline by adding methyl tert-butyl ether, or Increase the content of aromatic compounds in gasoline. According to the future development trend of fuel oil, mixed fuel and fuel oil will replace the current use of gasoline. HNBR has a better resistance to blending than NBR. For acidic (oxidized) fuels, hydroperoxides can degrade the performance of vulcanizates and improve the performance of HNBR acid-resistant fuels. In addition, HNBR is better than NBR, acrylate rubber and fluororubber in the stability of engine lubricants.

As the modern car has been used electronic fuel injection device, rubber parts must have excellent resistance to oxidation of fuel and ozone resistance, HNBR comprehensive performance is better than NBR and chloroprene rubber, processing performance is also better than fluorine rubber, it is widely used Automotive fuel system components. HNBR is also used to improve the impact resistance of the power steering hose and the heat resistance of the blown hose, but also because of its dynamic elasticity with temperature changes in the larger temperature range can maintain the power of accurate transmission is the manufacture of automotive engine camshaft An ideal rubber material for the timing belt associated with the crankshaft. With the increasingly high standards of automotive parts, the use of traditional materials made of CR rubber V-belt, tooth belt has been unable to meet the high strength materials, abrasive, good thermal stability requirements. HNBR has a tendency to replace CR. Oil seals, fuel pipes and other components made from NBR materials are also being replaced by HNBR components. The power steering hoses originally made of NBR / CR materials also began to use HNBR / CSM materials.

2) Petroleum industry

In recent years, the depth of oil and gas wells is increasing, the underground environment and temperature conditions are increasingly harsh, requiring rubber products must withstand high temperature, high pressure and hydrogen sulfide, methane, acid, steam and other tests. HNBR in the medium of the overall performance is better than NBR and fluorine rubber with high strength and good adhesion between the metal, HNBR rubber products are widely used for oil extraction, such as oil trap packer, ultra-deep well with submersible pump cable Sheath, BOP, directional oil extraction spindle motor, offshore oil drilling platform supporting hoses and so on.

The new hydrogenated carboxyl nitrile rubber (HXNBR) is a combination of hydrogenation and carboxylation, which, after appropriate blending, can be used to develop compounds that meet the stringent requirements of the well drilling and rubber industry, Industry is a high abrasive application. These properties of HXNBR are due to the control of the residual double bond in HXNBR, the concentration of reactive carboxylic acid groups forming the crosslinking bond, and the amount of metal oxide used to determine the density of the ion crosslinking bond network. HXNBR blends with low viscosity HNBR to achieve physical and dynamic balance, improved heat resistance, oil resistance, chemical resistance and abrasion resistance.

3) air conditioning and refrigeration industry

Air conditioning and refrigeration industry, in the past often used chloroprene rubber and fluorine rubber seal for sealing. Now the old refrigerated medium R22 is gradually replaced by new refrigerant, in the new refrigerant (such as R134a, 440A, 407C) conditions, HNBR because of excellent performance is more and more widely used.

4) Nuclear power industry

HNBR because of a good resistance to radiation performance, commonly used as a nuclear power device seals.