What are the characteristics of hydrogenated nitrile rubber seals?

Due to different usage environments and occasion conditions, DLSEALS tells you that the media used for sealing rubber sealing materials are different, which also determines the R&D and production of sealing use and application environments and locations. In the industry, the development and production of these rubber sealing materials, rubber has Nitrile rubber sealing materials, acrylic and fluororubber sealing materials, rubber can also choose silicone rubber sealing materials, polyurethane, hydrogenated nitrile rubber materials, polytetraethylene rubber sealing materials (sealing lip part), etc.

1. The abbreviation of hydrogenated nitrile rubber: HNBR, or H-NBR. It is a new variety of nitrile rubber (NBR for short). It is a highly saturated elastomer that undergoes unique hydrogenation treatment of nitrile rubber.

2. What are the characteristics of seals made of hydrogenated nitrile rubber? Seals made of hydrogenated nitrile rubber are a new type of elastomer with excellent performance. It is made from a solution of hydrogenated polybutyronitrile under catalysis and high pressure. The molecular chain of nitrile rubber changes from an unsaturated structure to a highly saturated structure through hydrogenation. Similar to regular NBR, it can add more fillers. The sealing rubber mixed with hydrocarbon rubber has good cold resistance, corrosion resistance and pressure deformation resistance. Since the development time of HNBR is very short, it is in the development research stage due to the bonding technology of resistant fibers and metals.

3. In which industries are seals made of hydrogenated nitrile rubber generally used? Seals developed from hydrogenated nitrile rubber have been widely used in vehicle seals and oil field seals. For oil fields with high hydrogen sulfide content, hydrogenated nitrile rubber is used to develop seals. Due to its excellent cold resistance and heat resistance, it can be used in sealing gaskets, gaskets, O-rings and other fields; due to its chemical resistance, HNBR is suitable for gas explosion protectors, drilling shields, plungers, valve seals ; Because its heat resistance and radiation resistance are better than silicone rubber, fluorine rubber and polytetraethylene, it is more suitable for manufacturing various rubber seals in the electrical sector. HNBR can add more fillers because of its low stiffness, good process performance and low density. The unit volume of its products is only half of that of fluorine rubber, which is much lower. Therefore, it will become a substitute for special elastomers such as fluorine rubber.

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