Rubber material GS3408 Hydrogenation of Nitrile Butadiene Rubber in seal ring industry
Hydrogenation of Nitrile Butadiene Rubber (HNBR) refers to the process of chemically modifying nitrile butadiene rubber (NBR) by adding hydrogen atoms to the polymer's carbon-carbon double bonds. HNBR is a copolymer made from acrylonitrile and butadiene, which gives it excellent oil, fuel, and chemical resistance.
Item No :
40025990Order(MOQ) :
1000Payment :
100%T/TProduct Origin :
CHINAColor :
YELLOWShipping Port :
NINGBOLead Time :
45-60DWeight :
25kg/carton; 500kg/pallet|
General information |
|||
|
RoHS compliance |
Complied |
||
|
Status |
Solid |
||
|
Performace Parameters |
Typical Value |
Unit |
Method |
| Iodine Value |
≤10 |
mg/100mg |
SH/T 176 |
| Hydrogenation Degree |
99 |
% |
SH/T 1762 |
| Acrylonitrile Content |
34.0±1.5 |
% |
SH/T 1157.2 |
| Mooney Viscosity |
80-95 |
ML1+4100℃ |
GB/T 1232.1 |
| Total Ash |
≤0.80 |
% |
GB/T 4498.1A |
| Volatile Matter |
≤1.00 |
% |
GB/T 24131.1B |
Hydrogenation is typically done to improve the thermal stability, oxidative resistance, and aging properties of NBR, resulting in a more durable material known as Hydrogenated Nitrile Butadiene Rubber (HNBR). This process reduces the amount of unsaturation in the polymer, which enhances its resistance to heat, ozone, and chemical exposure.
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Hydrogenation of Nitrile Butadiene Rubber (HNBR) refers to the process of chemically modifying nitrile butadiene rubber (NBR) by adding hydrogen atoms to the polymer's carbon-carbon double bonds. HNBR is a copolymer made from acrylonitrile and butadiene, which gives it excellent oil, fuel, and chemical resistance.
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Standard medium & high ACN grade with excellent dynamic properties and processing, especially suited for synchronous belts , O-rings, gaskets, oil seals and oil industry accessories, etc.
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Hydrogenated butadiene-acrylonitrile rubber (HNBR) is a highly saturated elastomer which is treated by catalytic hydrogenation of nitrile rubber (NBR). Compared with NBR, the molecular structure of HNBR contains a small amount or no carbon-carbon double bonds. The HNBR has better thermal oxygen aging, ozone resistance, radiation resistance, chemical medium resistance (acid, alkali, methane, refrigerant, hydrogen sulfide) and good dynamic properties than NBR, while maintaining the oil resistance and wear resistance of NBR. The HNBR is a special rubber with excellent comprehensive properties, which is a national strategic material.
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